Malware analysis gasby.exe Malicious activity | ANY.RUN

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File name:	gasby.exe
Full analysis:	https://app.any.run/tasks/c57a1552-6b06-4423-b9df-9160a33f1115
Verdict:	Malicious activity
Threats:	FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus. Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. Malware Trends Tracker >>>
Analysis date:	January 11, 2019, 11:38:40
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan formbook stealer
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	1B70A751A4DC4D451295C0E25355ED96
SHA1:	ECB21EB1D28FDCB8E665E709D27A68A129A9AB57
SHA256:	3EA7FEFB5B0E4EAB0DF80A20E5AE83C5BAAAF84DFF229D4C3F0CE1032B92E774
SSDEEP:	3072:R9zvqcpi+H3v5q2KOBPJvjrTqU3jCebgCuq:f1PBvKOBNTqUmq

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (68.0.3440.106)
Google Update Helper (1.3.33.17)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 61.0.2 (x86 en-US) (61.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Changes the autorun value in the registry
  - nbtstat.exe (PID: 3532)
- FORMBOOK was detected
  - explorer.exe (PID: 116)
- Formbook was detected
  - nbtstat.exe (PID: 3532)
  - Firefox.exe (PID: 3452)
- Connects to CnC server
  - explorer.exe (PID: 116)
- Actions looks like stealing of personal data
  - nbtstat.exe (PID: 3532)
- Stealing of credential data
  - nbtstat.exe (PID: 3532)
SUSPICIOUS
- Starts CMD.EXE for commands execution
  - nbtstat.exe (PID: 3532)
- Creates files in the user directory
  - nbtstat.exe (PID: 3532)
- Creates files in the program directory
  - DllHost.exe (PID: 788)
- Loads DLL from Mozilla Firefox
  - nbtstat.exe (PID: 3532)
- Executable content was dropped or overwritten
  - explorer.exe (PID: 116)
  - DllHost.exe (PID: 788)
INFO
- Creates files in the user directory
  - Firefox.exe (PID: 3452)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	DOS Executable Generic (100)

EXIF

EXE

Subsystem:	Windows GUI
SubsystemVersion:	5.1
ImageVersion:	-
OSVersion:	5.1
EntryPoint:	0x1b640
UninitializedDataSize:	-
InitializedDataSize:	-
CodeSize:	166912
LinkerVersion:	10
PEType:	PE32
TimeStamp:	2008:04:19 06:44:26+02:00
MachineType:	Intel 386 or later, and compatibles

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	19-Apr-2008 04:44:26

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x5245
Pages in file:	0x00E8
Relocations:	0x0000
Size of header:	0x5800
Min extra paragraphs:	0xE883
Max extra paragraphs:	0x8B09
Initial SS value:	0x83C8
Initial SP value:	0x3CC0
Checksum:	0x008B
Initial IP value:	0xC103
Initial CS value:	0xC083
Overlay number:	0xFF08
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x000000C8

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	1
Time date stamp:	19-Apr-2008 04:44:26
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00001000	0x00028B6C	0x00028C00	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	7.42293

No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID	CMD	Path	Indicators	Parent process
2972	"C:\Users\admin\AppData\Local\Temp\gasby.exe"	C:\Users\admin\AppData\Local\Temp\gasby.exe	—	explorer.exe
User: admin Integrity Level: MEDIUM Exit code: 0
3532	"C:\Windows\System32\nbtstat.exe"	C:\Windows\System32\nbtstat.exe		explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP NetBios Information Version: 6.1.7600.16385 (win7_rtm.090713-1255)
2180	/c del "C:\Users\admin\AppData\Local\Temp\gasby.exe"	C:\Windows\System32\cmd.exe	—	nbtstat.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
116	C:\Windows\Explorer.EXE	C:\Windows\explorer.exe		—
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Version: 6.1.7600.16385 (win7_rtm.090713-1255)
3452	"C:\Program Files\Mozilla Firefox\Firefox.exe"	C:\Program Files\Mozilla Firefox\Firefox.exe		nbtstat.exe
User: admin Company: Mozilla Corporation Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 61.0.2
788	C:\Windows\system32\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}	C:\Windows\system32\DllHost.exe		svchost.exe
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255)
3348	"C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe"	C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe	—	explorer.exe
User: admin Integrity Level: MEDIUM Exit code: 0
1040	"C:\Windows\System32\msdt.exe"	C:\Windows\System32\msdt.exe	—	explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Diagnostics Troubleshooting Wizard Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255)

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Total events

1 020

Read events

922

Write events

Delete events

Modification events


(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(116) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ApplicationDestinations
Operation:	write	Name:	MaxEntries
Value: 15
(PID) Process:	(116) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage
Operation:	write	Name:	StartMenu_Balloon_Time
Value: 184C0A74A2A9D401
(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	@C:\Windows\System32\display.dll,-4
Value: S&creen resolution
(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	@C:\Program Files\Common Files\System\wab32res.dll,-4602
Value: Contact file
(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	@C:\Program Files\Windows Sidebar\sidebar.exe,-11100
Value: &Gadgets
(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	@C:\Windows\system32\themecpl.dll,-10
Value: Pe&rsonalize
(PID) Process:	(116) explorer.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E
Operation:	write	Name:	@"C:\Program Files\Windows Journal\Journal.exe",-3072
Value: Journal Document
(PID) Process:	(116) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew
Operation:	write	Name:	Classes
Value: .accdb
(PID) Process:	(116) explorer.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Discardable\PostSetup\ShellNew
Operation:	write	Name:	~reserved~
Value: 0800000000000600

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3532	nbtstat.exe	C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrc.ini		binary
		MD5:BB0BE4A1590C6350E4EC2974BB1C098B	SHA256:7BED4626B2F3BE5F8A0D8C5A62509A6DEFCF3C3755A174232563906D8E72800F
3532	nbtstat.exe	C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logim.jpeg		image
		MD5:2D7E34613A042A039D28B781B9633838	SHA256:A25452307C31DFF64ECA8D28B58D048F20A7AD673A471467EEAF0DB886FB59B9
3452	Firefox.exe	C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrf.ini		binary
		MD5:53028481B5B5795F1501241CCC7ABFF6	SHA256:75B5F3045E20C80F264568707E2D444DC7498DB119D9661AE51A91575960FC5A
788	DllHost.exe	C:\Program Files\Ti6f\oftplr3xvfxqbdh.exe		executable
		MD5:1B70A751A4DC4D451295C0E25355ED96	SHA256:3EA7FEFB5B0E4EAB0DF80A20E5AE83C5BAAAF84DFF229D4C3F0CE1032B92E774
116	explorer.exe	C:\Users\admin\AppData\Local\Temp\Ti6f\oftplr3xvfxqbdh.exe		executable
		MD5:1B70A751A4DC4D451295C0E25355ED96	SHA256:3EA7FEFB5B0E4EAB0DF80A20E5AE83C5BAAAF84DFF229D4C3F0CE1032B92E774
3532	nbtstat.exe	C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logri.ini		binary
		MD5:D63A82E5D81E02E399090AF26DB0B9CB	SHA256:EAECE2EBA6310253249603033C744DD5914089B0BB26BDE6685EC9813611BAAE
3532	nbtstat.exe	C:\Users\admin\AppData\Roaming\8K89-1-E\8K8logrv.ini		binary
		MD5:BA3B6BC807D4F76794C4B81B09BB9BA5	SHA256:6EEBF968962745B2E9DE2CA969AF7C424916D4E3FE3CC0BB9B3D414ABFCE9507

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
116	explorer.exe	GET	—	93.89.231.49:80	http://www.evotelkonsept.com/hx316/?CP=T7ZnwVdSuRV6dKDiEWLksZDdkkGI6ND25lRhqPuI43JVpnRtdaiU9bTnsvtBWym9i4XyYw==&sZE=YnJ4ANEp&sql=1	CY	—	—	malicious
116	explorer.exe	GET	—	116.255.246.124:80	http://www.tongda6000.com/hx316/?CP=QLzPRSSCj9ETJiMmVaV5b/TileQJDqs0NJoxXYpg/TNwRaMVA1dC5ybS1qCK5iBzbJtCiQ==&sZE=YnJ4ANEp&sql=1	CN	—	—	malicious
116	explorer.exe	POST	—	93.89.231.49:80	http://www.evotelkonsept.com/hx316/	CY	—	—	malicious
116	explorer.exe	POST	—	93.89.231.49:80	http://www.evotelkonsept.com/hx316/	CY	—	—	malicious
116	explorer.exe	POST	—	93.89.231.49:80	http://www.evotelkonsept.com/hx316/	CY	—	—	malicious
116	explorer.exe	GET	404	156.234.26.147:80	http://www.qiling0991.com/hx316/?CP=q6+HbCok01A5EWOeBU5h3sjonq660sB5W5Mt5+yToudYyvjK8LcAfH/sz2mDUkvN4l1gWw==&sZE=YnJ4ANEp&sql=1	US	text	63 b	malicious
116	explorer.exe	POST	—	156.234.26.147:80	http://www.qiling0991.com/hx316/	US	—	—	malicious
116	explorer.exe	GET	404	162.213.249.180:80	http://www.mansiobbok.info/hx316/?CP=nA3X1aDjR7PWAl/xF2RlacL0CPrePCrzn+vgmFrobhS/U10VhsrvCK4rT57gUU+iVM4z1Q==&sZE=YnJ4ANEp	US	html	329 b	malicious
116	explorer.exe	POST	—	116.255.246.124:80	http://www.tongda6000.com/hx316/	CN	—	—	malicious
116	explorer.exe	POST	—	116.255.246.124:80	http://www.tongda6000.com/hx316/	CN	—	—	malicious

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
116	explorer.exe	93.89.231.49:80	www.evotelkonsept.com	Fbs Bilisim Cozumleri Tic Ltd Sti.	CY	malicious
116	explorer.exe	116.255.246.124:80	www.tongda6000.com	CHINA UNICOM China169 Backbone	CN	malicious
116	explorer.exe	162.213.249.180:80	www.mansiobbok.info	Namecheap, Inc.	US	malicious
116	explorer.exe	156.234.26.147:80	www.qiling0991.com	MULTACOM CORPORATION	US	malicious

DNS requests

Domain	IP	Reputation
www.q6ad.review	—	unknown
www.smalljobsnsw.com	—	unknown
www.bikaku-ex.com	—	unknown
www.healthyvancouver.life	—	unknown
www.sarados.online	—	unknown
www.ehliyetimyok.com	—	unknown
www.mansiobbok.info	162.213.249.180	malicious
www.evotelkonsept.com	93.89.231.49	malicious
www.tongda6000.com	116.255.246.124	malicious
www.geniusclock.win	—	unknown

Threats

PID	Process	Class	Message
116	explorer.exe	A Network Trojan was detected	SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)
116	explorer.exe	A Network Trojan was detected	SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)
116	explorer.exe	A Network Trojan was detected	SC TROJAN_DOWNLOADER Suspicious HTTP-GET request with body and minimal header
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (GET)
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] TrojanSpy:FormBook CnC Checkin (POST)
116	explorer.exe	A Network Trojan was detected	MALWARE [PTsecurity] FormBook CnC Checkin (POST)

10 ETPRO signatures available at the full report

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No debug info

General Info

gasby.exe

1B70A751A4DC4D451295C0E25355ED96

ECB21EB1D28FDCB8E665E709D27A68A129A9AB57

3EA7FEFB5B0E4EAB0DF80A20E5AE83C5BAAAF84DFF229D4C3F0CE1032B92E774

3072:R9zvqcpi+H3v5q2KOBPJvjrTqU3jCebgCuq:f1PBvKOBNTqUmq

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Changes the autorun value in the registry

FORMBOOK was detected

Formbook was detected

Connects to CnC server

Actions looks like stealing of personal data

Stealing of credential data

SUSPICIOUS

Starts CMD.EXE for commands execution

Creates files in the user directory

Creates files in the program directory

Loads DLL from Mozilla Firefox

Executable content was dropped or overwritten

INFO

Creates files in the user directory

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Information

Information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings