Malware analysis custom invoice.exe Malicious activity

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File name:	custom invoice.exe
Full analysis:	https://app.any.run/tasks/e02d5514-3b03-48be-9870-dca479ec45f7
Verdict:	Malicious activity
Threats:	NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website. 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. Malware Trends Tracker >>>
Analysis date:	July 11, 2019, 13:00:27
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat nanocore
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	CD607F40E268D638C7A6828CBF3742ED
SHA1:	21D9D49B98026CE7D4DB4EA833F0D101BC0018E6
SHA256:	D7313A3B7D8AF9FD25F956D900C8967FA8101FCF5D61105E747889D200F64BC7
SSDEEP:	12288:3NZRcZKCpmCyr8J8J46Iiegd9UodldJl2LjphEQbfzYawLfOJ:DSRsCs8JbGfdXldv2HE2fRGe

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:: 60 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: none
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 (75.0.3770.100)
Google Update Helper (1.3.34.7)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.7.2 (4.7.03062)
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++ 2015-2019 Redistributable (x86) - 14.21.27702 (14.21.27702.2)
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.21.27702 (14.21.27702)
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.21.27702 (14.21.27702)
Mozilla Firefox 67.0.4 (x86 en-US) (67.0.4)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
Update for Microsoft .NET Framework 4.7.2 (KB4087364) (1)
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
KB4019990
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- NanoCore was detected
  - custom invoice.exe (PID: 2692)
SUSPICIOUS
- Application launched itself
  - custom invoice.exe (PID: 3736)
- Creates files in the user directory
  - custom invoice.exe (PID: 2692)
INFO
- Manual execution by user
  - WINWORD.EXE (PID: 3908)
- Creates files in the user directory
  - WINWORD.EXE (PID: 3908)
- Reads Microsoft Office registry keys
  - WINWORD.EXE (PID: 3908)

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:	1992:04:20 18:58:08+02:00
PEType:	PE32
LinkerVersion:	2.25
CodeSize:	371712
InitializedDataSize:	352768
UninitializedDataSize:	-
EntryPoint:	0x5baf0
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	20-Apr-1992 16:58:08
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:	20-Apr-1992 16:58:08
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	0x0005AB38	0x0005AC00	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.50777
DATA	0x0005C000	0x000099C4	0x00009A00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	5.16404
BSS	0x00066000	0x00000F21	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.idata	0x00067000	0x000020C0	0x00002200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	4.90694
.tls	0x0006A000	0x00000010	0x00000000	IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.rdata	0x0006B000	0x00000018	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	0.20692
.reloc	0x0006C000	0x0000700C	0x00007200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	6.61351
.rsrc	0x00074000	0x00043044	0x00043200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED	7.21045

Resources

Title	Entropy	Size	Codepage	Language	Type
1	5.4909	2216	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
913	6.47164	1784	Latin 1 / Western European	English - United States	RT_BITMAP
914	7.50102	1784	Latin 1 / Western European	English - United States	RT_BITMAP
915	7.54687	1784	Latin 1 / Western European	English - United States	RT_BITMAP

Imports


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

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2692

"C:\Users\admin\AppData\Local\Temp\custom invoice.exe"

C:\Users\admin\AppData\Local\Temp\custom invoice.exe

custom invoice.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\custom invoice.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\psapi.dll
c:\windows\system32\shlwapi.dll

2900

"C:\Users\admin\AppData\Local\Temp\custom invoice.exe" 2 2692 866078

C:\Users\admin\AppData\Local\Temp\custom invoice.exe

—

custom invoice.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\custom invoice.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll

3736

"C:\Users\admin\AppData\Local\Temp\custom invoice.exe"

C:\Users\admin\AppData\Local\Temp\custom invoice.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\custom invoice.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll

3908

"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\Desktop\recentgreen.rtf"

C:\Program Files\Microsoft Office\Office14\WINWORD.EXE

—

explorer.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Word

Exit code:

Version:

14.0.6024.1000

Modules

Images
c:\program files\microsoft office\office14\winword.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\winsxs\x86_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.6161_none_50934f2ebcb7eb57\msvcr90.dll
c:\windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.17514_none_ec83dffa859149af\comctl32.dll

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Total events

993

Read events

648

Write events

333

Delete events

Modification events


(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	-i;
Value: 2D693B00440F0000010000000000000000000000
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: Off
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:	write	Name:	1033
Value: On
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	WORDFiles
Value: 1324023839
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1324023952
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\00004109D30000000000000000F01FEC\Usage
Operation:	write	Name:	ProductFiles
Value: 1324023953
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word
Operation:	write	Name:	MTTT
Value: 440F00007CD64FB1E837D50100000000
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	write	Name:	ej;
Value: 656A3B00440F000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Word\Resiliency\StartupItems
Operation:	delete value	Name:	ej;
Value: 656A3B00440F000004000000000000008C00000001000000840000003E0043003A005C00550073006500720073005C00610064006D0069006E005C0041007000700044006100740061005C0052006F0061006D0069006E0067005C004D006900630072006F0073006F00660074005C00540065006D0070006C0061007400650073005C004E006F0072006D0061006C002E0064006F0074006D00000000000000
(PID) Process:	(3908) WINWORD.EXE	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:	write	Name:	UNCAsIntranet
Value: 0

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
3908	WINWORD.EXE	C:\Users\admin\AppData\Local\Temp\CVR250D.tmp.cvr		—
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{3A5AE5B1-CE8D-4E17-9D86-918D79E850A7}.tmp		—
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRS{2EC79A5C-F416-4D2E-A67F-4C077360A970}.tmp		—
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotm		pgc
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\Desktop\~$centgreen.rtf		pgc
		MD5:—	SHA256:—
2692	custom invoice.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		text
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\recentgreen.rtf.LNK		lnk
		MD5:—	SHA256:—
3908	WINWORD.EXE	C:\Users\admin\AppData\Roaming\Microsoft\Office\Recent\index.dat		text
		MD5:—	SHA256:—

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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
2692	custom invoice.exe	185.56.90.93:2200	—	Buzinessware FZCO	AE	unknown

DNS requests

No data

Threats

No threats detected

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No debug info

General Info

custom invoice.exe

CD607F40E268D638C7A6828CBF3742ED

21D9D49B98026CE7D4DB4EA833F0D101BC0018E6

D7313A3B7D8AF9FD25F956D900C8967FA8101FCF5D61105E747889D200F64BC7

12288:3NZRcZKCpmCyr8J8J46Iiegd9UodldJl2LjphEQbfzYawLfOJ:DSRsCs8JbGfdXldv2HE2fRGe

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

NanoCore was detected

SUSPICIOUS

Application launched itself

Creates files in the user directory

INFO

Manual execution by user

Creates files in the user directory

Reads Microsoft Office registry keys

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

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings