Automated Malware Analysis IOC Report for

Files

File Path

Type

Category

Malicious

vJsFBhrSfK.exe

PE32 executable (GUI) Intel 80386, for MS Windows

initial sample

Details

Filetype:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy:	7.649128690219899
Filename:	vJsFBhrSfK.exe
Filesize:	286208
MD5:	f6e330ca595ee7f05ddbecb8cd851350
SHA1:	f22953cd04a52fc0cd2fc313ebfc5b329598abb0
SHA256:	65e6633b1a99bf5b6a71d8fb26ec5130b0db075c0a838301d8120e32b7ca847b
SHA512:	4e369f6cec94a80d65c0851bbf311845cac529eb0319e71fa26fe2cc0fe9f9aad802f4b4f2f4e4c60692aa2e4b881b2106b0b03a19f65829aa33b158bee17ee9
SSDEEP:	6144:FrjAFi6J7yALSGDZyNw3ENr3DA59jli+GXWCzXKihuztQ6:FwFVJ7yY1yNfrMzjl2WCz6O2tQ6
Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...PW.X.................N...................`....@..........................`............@................................

Signature Hits	Behavior Group	Mitre Attack
Antivirus / Scanner detection for submitted sample	AV Detection
Malicious sample detected (through community Yara rule)	System Summary
Multi AV Scanner detection for submitted file	AV Detection
Machine Learning detection for sample	AV Detection
Checks if the current process is being debugged	Anti Debugging	Virtualization/Sandbox Evasion
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)	Anti Debugging
Detected potential crypto function	System Summary	Archive Collected Data Encrypted Channel
One or more processes crash	System Summary
PE file does not import any functions	System Summary
Uses 32bit PE files	Compliance, System Summary
Uses code obfuscation techniques (call, push, ret)	Data Obfuscation
Yara signature match	System Summary
Binary may include packed or encrypted code	Data Obfuscation	Software Packing Obfuscated Files or Information
PE file has an executable .text section which is very likely to contain packed code (zlib compression ratio < 0.3)	System Summary
PE file contains only one section	System Summary
PE file has an executable .text section and no other executable section	System Summary
Reads software policies	System Summary	System Information Discovery
Sample is known by Antivirus	System Summary
Tries to load missing DLLs	System Summary	DLL Side-Loading
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_vJsFBhrSfK.exe_56edd9d08eaf191b756af833f8b14cb7e7fcbecd_78d2fcfd_9f6e3fb3-e1d2-433f-9cdc-8e706dd7619e\Report.wer

Unicode text, UTF-16, little-endian text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_vJsFBhrSfK.exe_56edd9d08eaf191b756af833f8b14cb7e7fcbecd_78d2fcfd_9f6e3fb3-e1d2-433f-9cdc-8e706dd7619e\Report.wer
Category:	dropped
Dump:	Report.wer.3.dr
ID:	dr_3
Target ID:	3
Process:	C:\Windows\SysWOW64\WerFault.exe
Type:	Unicode text, UTF-16, little-endian text, with CRLF line terminators
Entropy:	0.6335618800574755
Encrypted:	false
Ssdeep:	192:2f9/b6MT2O0BU/jrojEzuiFJZ24IO8vykLr:uVb6MT21BU/jrojEzuiFJY4IO8vyk
Size:	65536
Whitelisted:	false
Reputation:	low

Signature Hits	Behavior Group	Mitre Attack
Antivirus / Scanner detection for submitted sample	AV Detection
Multi AV Scanner detection for submitted file	AV Detection
Machine Learning detection for sample	AV Detection
PE file does not import any functions	System Summary
Uses 32bit PE files	Compliance, System Summary
Binary may include packed or encrypted code	Data Obfuscation	Obfuscated Files or Information Software Packing
PE file has an executable .text section which is very likely to contain packed code (zlib compression ratio < 0.3)	System Summary	Software Packing
PE file contains only one section	System Summary
PE file has an executable .text section and no other executable section	System Summary
Sample is known by Antivirus	System Summary
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary

C:\ProgramData\Microsoft\Windows\WER\Temp\WERC34.tmp.dmp

Mini DuMP crash report, 14 streams, Thu Sep 26 12:06:32 2024, 0x1205a4 type

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERC34.tmp.dmp
Category:	dropped
Dump:	WERC34.tmp.dmp.3.dr
ID:	dr_0
Target ID:	3
Process:	C:\Windows\SysWOW64\WerFault.exe
Type:	Mini DuMP crash report, 14 streams, Thu Sep 26 12:06:32 2024, 0x1205a4 type
Entropy:	1.9325311564024037
Encrypted:	false
Ssdeep:	96:5m8cl6CQRYZE+0Ywi7nGh1g65yvLIWIkWI/sIxFgAbf:rNgZfwOGjg3vtFgE
Size:	20876
Whitelisted:	false
Reputation:	low

C:\ProgramData\Microsoft\Windows\WER\Temp\WERCA2.tmp.WERInternalMetadata.xml

XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERCA2.tmp.WERInternalMetadata.xml
Category:	dropped
Dump:	WERCA2.tmp.WERInternalMetadata.xml.3.dr
ID:	dr_1
Target ID:	3
Process:	C:\Windows\SysWOW64\WerFault.exe
Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Entropy:	3.6988147665367768
Encrypted:	false
Ssdeep:	192:R6l7wVeJyntb6T6Y9cSUCMgmfNyMaprM89b3OsfUdm:R6lXJytb6T6Y2SUCMgmfNyM23NfD
Size:	8278
Whitelisted:	false
Reputation:	low

C:\ProgramData\Microsoft\Windows\WER\Temp\WERCC2.tmp.xml

XML 1.0 document, ASCII text, with CRLF line terminators

dropped

Details

File:	C:\ProgramData\Microsoft\Windows\WER\Temp\WERCC2.tmp.xml
Category:	dropped
Dump:	WERCC2.tmp.xml.3.dr
ID:	dr_2
Target ID:	3
Process:	C:\Windows\SysWOW64\WerFault.exe
Type:	XML 1.0 document, ASCII text, with CRLF line terminators
Entropy:	4.474062245200783
Encrypted:	false
Ssdeep:	48:cvIwWl8zsvJg77aI9CtWpW8VYjoYm8M4JApFx+q8a31sdEPMd:uIjfRI74c7V4JYFs+PMd
Size:	4579
Whitelisted:	false
Reputation:	low

C:\Windows\appcompat\Programs\Amcache.hve

MS Windows registry file, NT/2000 or above

dropped

Details

File:	C:\Windows\appcompat\Programs\Amcache.hve
Category:	dropped
Dump:	Amcache.hve.3.dr
ID:	dr_4
Target ID:	3
Process:	C:\Windows\SysWOW64\WerFault.exe
Type:	MS Windows registry file, NT/2000 or above
Entropy:	4.465431299024242
Encrypted:	false
Ssdeep:	6144:PIXfpi67eLPU9skLmb0b4+WSPKaJG8nAgejZMMhA2gX4WABl0uN2dwBCswSbk:gXD94+WlLZMM6YFHM+k
Size:	1835008
Whitelisted:	false
Reputation:	low

Processes

Path

Cmdline

Malicious

C:\Users\user\Desktop\vJsFBhrSfK.exe

"C:\Users\user\Desktop\vJsFBhrSfK.exe"

Details

Is windows:	false
Is dropped:	false
PID:	6480
Target ID:	0
Parent PID:	2580
Name:	vJsFBhrSfK.exe
Path:	C:\Users\user\Desktop\vJsFBhrSfK.exe
Commandline:	"C:\Users\user\Desktop\vJsFBhrSfK.exe"
Size:	286208
MD5:	F6E330CA595EE7F05DDBECB8CD851350
Time:	08:06:32
Date:	26/09/2024
Reason:	newprocess
Reputation:	low
Is admin:	true
Is elevated:	true
Modulebase:	0xda0000
Modulesize:	286720
Wow64:	true

Signature Hits	Behavior Group	Mitre Attack
Antivirus / Scanner detection for submitted sample	AV Detection
Multi AV Scanner detection for submitted file	AV Detection
Yara detected FormBook	AV Detection, E-Banking Fraud, Stealing of Sensitive Information, Remote Access Functionality
Machine Learning detection for sample	AV Detection
PE file does not import any functions	System Summary
Uses 32bit PE files	Compliance, System Summary
Binary may include packed or encrypted code	Data Obfuscation	Obfuscated Files or Information Software Packing
PE file has an executable .text section which is very likely to contain packed code (zlib compression ratio < 0.3)	System Summary	Software Packing
PE file contains only one section	System Summary
PE file has an executable .text section and no other executable section	System Summary
Sample is known by Antivirus	System Summary
Spawns processes	System Summary	Process Injection
Contains modern PE file flags such as dynamic base (ASLR) or NX	Compliance, System Summary

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 6480 -s 228

Details

Is windows:	true
Is dropped:	false
PID:	6676
Target ID:	3
Parent PID:	6480
Name:	WerFault.exe
Path:	C:\Windows\SysWOW64\WerFault.exe
Commandline:	C:\Windows\SysWOW64\WerFault.exe -u -p 6480 -s 228
Size:	483680
MD5:	C31336C1EFC2CCB44B4326EA793040F2
Time:	08:06:32
Date:	26/09/2024
Reason:	newprocess
Reputation:	high
Is admin:	true
Is elevated:	true
Modulebase:	0x720000
Modulesize:	499712
Wow64:	true

Signature Hits	Behavior Group	Mitre Attack
One or more processes crash	System Summary
Spawns processes	System Summary	Process Injection

URLs

Name

Malicious

http://upx.sf.net

unknown