MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688
SHA3-384 hash: d32eeed012a95a95d65eabc5ea4cbf6ce8b78a32a05941eb159f47d4dfd5c7fe34e02a4e2fa9f4da70334e4b59f75fe5
SHA1 hash: 0b8332d64da644bd8ae78f6b1bec40fc54e9f4cb
MD5 hash: 3ba675ca011632bd808e19405b294859
humanhash: apart-triple-xray-cold
File name:Payment copy.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'263'136 bytes
First seen:2024-09-03 12:18:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5946b66c0c248992121c77a3b48fcbde (6 x Formbook, 2 x MassLogger)
ssdeep 49152:puAEE6l/kZzz3uBytwA6cYAyhEvFY4W1ed66W2Grw7nw:Yuzb+CGrws
Threatray 39 similar samples on MalwareBazaar
TLSH T17EA5CE14E3A801A8E467DB38CA659333D6B079564730E58F0A99D6452F73ED2AF7F302
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10523/12/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon 32aa6abaaeecac51 (27 x SnakeKeylogger, 19 x Formbook, 4 x MassLogger)
Reporter threatcat_ch
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Microsoft Code Signing PCA 2011
Issuer:Microsoft Code Signing PCA 2011
Algorithm:sha256WithRSAEncryption
Valid from:2024-09-02T16:16:30Z
Valid to:2025-09-02T16:16:30Z
Serial number: 4a7b925fd0a36ddac70dc0f960288c2d
Thumbprint Algorithm:SHA256
Thumbprint: 8c7ecee439a203d34345cacc8f8cb25dcf9a0c09fa018c4c9d0c13c51988462f
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
370
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Payment copy.exe
Verdict:
Malicious activity
Analysis date:
2024-09-03 12:20:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3cc04026-85de-417b-bb2a-289f83f5a89d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.Evo-gen.20160.17868.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d6fe7ff3d7ccf99f8fb650
Tags:
Encryption Execution Static Stealth Swotter
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file
Launching a process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint hacktool lolbin masquerade microsoft_visual_cc overlay packed regedit remote shell32
Link:
https://www.filescan.io/uploads/66d6fe7b489b4603381fd2fb/reports/938f1088-b2a0-4420-95bc-b33f0420eb77/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/3d0d08b3-a7c5-4ec0-a932-662bd847b386
Result
Threat name:
FormBook, LummaC Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1503392
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
Drops PE files to the user root directory
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected FormBook
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1503392 Sample: Payment copy.exe Startdate: 03/09/2024 Architecture: WINDOWS Score: 100 48 Malicious sample detected (through community Yara rule) 2->48 50 Multi AV Scanner detection for dropped file 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 7 other signatures 2->54 9 Payment copy.exe 1 3 2->9         started        13 Payment copy.exe 2 2->13         started        process3 file4 46 C:\Users\user\Payment copy.exe, PE32+ 9->46 dropped 62 Writes to foreign memory regions 9->62 64 Allocates memory in foreign processes 9->64 66 Adds a directory exclusion to Windows Defender 9->66 15 vbc.exe 9->15         started        18 powershell.exe 23 9->18         started        20 conhost.exe 9->20         started        68 Injects a PE file into a foreign processes 13->68 22 powershell.exe 23 13->22         started        24 conhost.exe 13->24         started        26 aspnet_wp.exe 13->26         started        signatures5 process6 signatures7 78 Maps a DLL or memory area into another process 15->78 80 Switches to a custom stack to bypass stack traces 15->80 28 Payment copy.exe 2 15->28         started        82 Loading BitLocker PowerShell Module 18->82 31 conhost.exe 18->31         started        33 conhost.exe 22->33         started        process8 signatures9 70 Writes to foreign memory regions 28->70 72 Allocates memory in foreign processes 28->72 74 Adds a directory exclusion to Windows Defender 28->74 76 Injects a PE file into a foreign processes 28->76 35 csc.exe 28->35         started        38 powershell.exe 28->38         started        40 conhost.exe 28->40         started        42 2 other processes 28->42 process10 signatures11 56 Maps a DLL or memory area into another process 35->56 58 Switches to a custom stack to bypass stack traces 35->58 60 Loading BitLocker PowerShell Module 38->60 44 conhost.exe 38->44         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688/
Threat name:
Win64.Trojan.VenomRAT
Create hunting rule
Status:
Malicious
First seen:
2024-09-03 10:24:26 UTC
File Type:
PE+ (Exe)
Extracted files:
5
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kin2ds3zx2lxlbxlyqdxeecyou5kv7jugyrxjq352i2woqc2i2ea._file
Verdict:
malicious
Similar samples:
3ca79e899fc4afb051d79323ae71ec356bd8a8cff6cebbfba6c8ce80f41db2a3
Formbook
4990d4c5600664a439e09e9eea416eee51d021284bc8fba006aa3bebbfb11175
Formbook
8d278608d1d1c4c5b6c048020c23351e75203066af1ae1e63c5c5ac0170cd3de
Formbook
d183ff97ac5c70dbbabbc93155f02398dd1ad1bc5dbe9d3f72722bd6d0c189da
Formbook
e3982b1cbd3445eb68e177c578113fb2d35b4ed924fbdd7486841846c7a5beb5
Formbook
+ 29 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
execution persistence
Link:
https://tria.ge/reports/240903-pgln8axepf/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Uses the VBS compiler for execution
Command and Scripting Interpreter: PowerShell
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8bcebf4a-58ec-4612-b9d9-238471ad7a3a
Unpacked files
SH256 hash:
521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688
MD5 hash:
3ba675ca011632bd808e19405b294859
SHA1 hash:
0b8332d64da644bd8ae78f6b1bec40fc54e9f4cb
Link:
https://www.unpac.me/results/829c3513-dab4-48a1-9011-432d236ee3c1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/521ba1cb79be/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 521ba1cb79be977586ebc407721058753aaafd34362374c37dd23567405a4688

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThreadpoolIo
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::FreeConsole
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptGenerateSymmetricKey
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptOpenAlgorithmProvider
bcrypt.dll::BCryptCloseAlgorithmProvider
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments