Malware analysis a1.exe Malicious activity | ANY.RUN

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File name:	a1.exe
Full analysis:	https://app.any.run/tasks/6878f7b7-c447-40e0-85fe-648157c92f11
Verdict:	Malicious activity
Threats:	A keylogger is a type of spyware that infects a system and has the ability to record every keystroke made on the device. This lets attackers collect personal information of victims, which may include their online banking credentials, as well as personal conversations. The most widespread vector of attack leading to a keylogger infection begins with a phishing email or link. Keylogging is also often present in remote access trojans as part of an extended set of malicious tools. Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. Remcos is a RAT type malware that attackers use to perform actions on infected machines remotely. This malware is extremely actively caped up to date with updates coming out almost every single month. 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:	March 21, 2019, 07:37:05
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	trojan rat remcos keylogger
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	D2F9795332F58885395A5BD00BC6484B
SHA1:	75D29527337F3259DC54B9ECDCE8355FEF16C4DD
SHA256:	84456219C11137B160A77469CB8C8CC3671AF6F9C153F14484B5E33F50B72D73
SSDEEP:	12288:yDg488UeUHizN/m6DA73ZPifqrjq7g5Yrtv111:yc4CpHM/m6Y3Zaf17guV111

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 (73.0.3683.75)
Google Update Helper (1.3.33.23)
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 65.0.2 (x86 en-US) (65.0.2)
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
- Writes to a start menu file
  - hstart.exe (PID: 1156)
- Detected logs from REMCOS RAT
  - hstart.exe (PID: 916)
- Connects to CnC server
  - hstart.exe (PID: 916)
SUSPICIOUS
- Creates files in the user directory
  - a1.exe (PID: 1336)
  - hstart.exe (PID: 1156)
  - hstart.exe (PID: 916)
- Starts itself from another location
  - a1.exe (PID: 1336)
- Executable content was dropped or overwritten
  - a1.exe (PID: 1336)
- Application launched itself
  - hstart.exe (PID: 1156)
- Writes files like Keylogger logs
  - hstart.exe (PID: 916)
- Connects to unusual port
  - hstart.exe (PID: 916)
INFO
No info indicators.

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	\|	Win32 Executable Delphi generic (37.4)
.scr	\|	Windows screen saver (34.5)
.exe	\|	Win32 Executable (generic) (11.9)
.exe	\|	Win16/32 Executable Delphi generic (5.4)
.exe	\|	Generic Win/DOS Executable (5.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	1992:06:03 02:42:10+02:00
PEType:	PE32
LinkerVersion:	2.25
CodeSize:	359424
InitializedDataSize:	246272
UninitializedDataSize:	-
EntryPoint:	0x58b44
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	03-Jun-1992 00:42:10
Detected languages:	English - United States

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0050
Pages in file:	0x0002
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x000F
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x001A
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x00000100

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	8
Time date stamp:	03-Jun-1992 00:42:10
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_BYTES_REVERSED_HI IMAGE_FILE_BYTES_REVERSED_LO IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
CODE	0x00001000	0x00057B8C	0x00057C00	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.52948
DATA	0x00059000	0x0000BFD8	0x0000C000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	3.8925
BSS	0x00065000	0x00000C4D	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.idata	0x00066000	0x000021D0	0x00002200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	4.90581
.tls	0x00069000	0x00000010	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.rdata	0x0006A000	0x00000018	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	0.200582
.reloc	0x0006B000	0x000060E4	0x00006200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	6.64449
.rsrc	0x00072000	0x00027B04	0x00027C00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	7.06873

Resources

Title	Entropy	Size	Codepage	Language	Type
1	3.84787	1384	Latin 1 / Western European	English - United States	RT_ICON
2	2.80231	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
3	3.00046	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
4	2.56318	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
5	2.6949	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
6	2.62527	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
7	2.91604	308	Latin 1 / Western European	UNKNOWN	RT_CURSOR
396	4.49064	4147	Latin 1 / Western European	English - United States	RT_CURSOR
397	7.15529	4147	Latin 1 / Western European	English - United States	RT_CURSOR
398	7.27188	4147	Latin 1 / Western European	English - United States	RT_CURSOR

Imports


advapi32.dll
comctl32.dll
gdi32.dll
kernel32.dll
oleaut32.dll
user32.dll

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

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Process information

PID	CMD	Path	Indicators	Parent process
1336	"C:\Users\admin\AppData\Local\Temp\a1.exe"	C:\Users\admin\AppData\Local\Temp\a1.exe		explorer.exe
User: admin Integrity Level: MEDIUM Exit code: 0
1156	"C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe"	C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe		a1.exe
User: admin Integrity Level: MEDIUM Exit code: 0
916	"C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe"	C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe		hstart.exe
User: admin Integrity Level: MEDIUM
2932	"C:\Windows\system32\taskmgr.exe" /4	C:\Windows\system32\taskmgr.exe	—	explorer.exe
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Task Manager Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255)

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Total events

Read events

Write events

Delete events

Modification events


(PID) Process:	(916) hstart.exe	Key:	HKEY_CURRENT_USER\Software\fdsdffdxdgdc-N2SBMP
Operation:	write	Name:	exepath
Value: 0E500A47EF00C85C0EDCACF3351F7D87D0DC0E7EAF9C809A4F8FE1DF8ADF24C11C8EA2C4DE1DC04B3970169803E953F0022382836B0A1735AB3A245A770F8E0EBFB3FF8FD1F760DF6297EEC35FDFAB65F6E9514E8D079CF102BA000781D20787D3962E77AAA1DD8D88F74843D0BA6DDE
(PID) Process:	(916) hstart.exe	Key:	HKEY_CURRENT_USER\Software\fdsdffdxdgdc-N2SBMP
Operation:	write	Name:	licence
Value: F889726D0097DC2E2E14B7C0FDB7586B
(PID) Process:	(2932) taskmgr.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TaskManager
Operation:	write	Name:	UsrColumnSettings
Value: 1C0C0000340400000000000050000000010000001D0C0000350400000000000023000000010000001E0C000036040000000000003C000000010000001F0C000039040000000000004E00000001000000200C000037040000000000004E00000001000000
(PID) Process:	(2932) taskmgr.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TaskManager
Operation:	write	Name:	Preferences
Value: 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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
1336	a1.exe	C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe:ZoneIdentifier		—
		MD5:—	SHA256:—
916	hstart.exe	C:\Users\admin\AppData\Roaming\fdss\logs.dat		text
		MD5:28182060321BD56090C6935C6AF6B9A8	SHA256:C78CC970B5A12C98A5BCACFF915DFD0EDDC31CF8D87BB6E5D526727E76FD4C7E
1156	hstart.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hstartuphhdjs.vbs		text
		MD5:FFCDF9A7497CA540821D1BB34E6D55AE	SHA256:662B27032CC72BC81594603336AC70DDEA00FB17FB9E8C5B69B9EE7A661BDF24
1336	a1.exe	C:\Users\admin\AppData\Roaming\hstartuphhdjs\hstart.exe		executable
		MD5:D2F9795332F58885395A5BD00BC6484B	SHA256:84456219C11137B160A77469CB8C8CC3671AF6F9C153F14484B5E33F50B72D73

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
916	hstart.exe	45.32.184.40:8787	z41.myfirewall.org	Choopa, LLC	NL	malicious

DNS requests

Domain	IP	Reputation
z41.myfirewall.org	45.32.184.40	malicious

Threats

PID	Process	Class	Message
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29
916	hstart.exe	A Network Trojan was detected	MALWARE [PTsecurity] Backdoor.Win32/Remcos RAT connection
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29
916	hstart.exe	A Network Trojan was detected	MALWARE [PTsecurity] Backdoor.Win32/Remcos RAT connection
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29
916	hstart.exe	A Network Trojan was detected	ET TROJAN Win32/Remcos RAT Checkin 29

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No debug info

General Info

a1.exe

D2F9795332F58885395A5BD00BC6484B

75D29527337F3259DC54B9ECDCE8355FEF16C4DD

84456219C11137B160A77469CB8C8CC3671AF6F9C153F14484B5E33F50B72D73

12288:yDg488UeUHizN/m6DA73ZPifqrjq7g5Yrtv111:yc4CpHM/m6Y3Zaf17guV111

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Writes to a start menu file

Detected logs from REMCOS RAT

Connects to CnC server

SUSPICIOUS

Creates files in the user directory

Starts itself from another location

Executable content was dropped or overwritten

Application launched itself

Writes files like Keylogger logs

Connects to unusual port

INFO

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Resources

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Information

Information

Information

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings