MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e. 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: 17


Intelligence 17 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e
SHA3-384 hash: 84793dba62173618d0c755911cd40fe1a6df37071383c51f74cb80cf218ad24bc0a8eb8b6ff5e8d16aa1e25aafc63197
SHA1 hash: 81ca3ccc56eae9b91b31ebe9f791e03226710204
MD5 hash: 5761dcb8640793699cd177a59cf2c0ed
humanhash: nuts-coffee-california-william
File name:last order.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:904'192 bytes
First seen:2025-02-05 10:12:24 UTC
Last seen:2025-02-05 14:33:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:TLzUMXe5y/t1uKxREmoYctVxrTGVOuO8YSK2mxR6iL8S4tcJpDoRwe8QVDFzQhJ:TLlx8YmrCd/PZmxR6iLJxpER9VJQ
Threatray 125 similar samples on MalwareBazaar
TLSH T1E7152B3D18F9212792A5C2A1CFE4CA27F040A8EA31936D25D9E24355071FA5B7DC3E7E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
473
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
last order.exe
Verdict:
Malicious activity
Analysis date:
2025-02-05 10:20:08 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/203d4114-d29f-4dc0-9d6f-b32809ef5805

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.10297.14029.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a33b3f51193558eb1975d2
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated obfuscated obfuscated vbnet
Link:
https://www.filescan.io/uploads/67a339c1ff13b3c5561b8d5d/reports/ac9c618c-b86c-47c0-b256-2af6e432e075/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/462912e3-d837-4eaa-9423-626fe57e0ee1
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1607323
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Rare Remote Thread Creation By Uncommon Source Image
Sigma detected: Rundll32 Execution Without CommandLine Parameters
Sigma detected: Scheduled temp file as task from temp location
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Tries to resolve many domain names, but no domain seems valid
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1607323 Sample: last order.exe Startdate: 05/02/2025 Architecture: WINDOWS Score: 100 61 www.yber-security-26409.bond 2->61 63 www.xecadminadvo.vip 2->63 65 9 other IPs or domains 2->65 81 Found malware configuration 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 Antivirus detection for URL or domain 2->85 87 17 other signatures 2->87 11 last order.exe 7 2->11         started        15 jZhgVFz.exe 5 2->15         started        signatures3 process4 file5 53 C:\Users\user\AppData\Roaming\jZhgVFz.exe, PE32 11->53 dropped 55 C:\Users\user\...\jZhgVFz.exe:Zone.Identifier, ASCII 11->55 dropped 57 C:\Users\user\AppData\Local\...\tmp932B.tmp, XML 11->57 dropped 59 C:\Users\user\AppData\...\last order.exe.log, ASCII 11->59 dropped 89 Writes to foreign memory regions 11->89 91 Allocates memory in foreign processes 11->91 93 Adds a directory exclusion to Windows Defender 11->93 95 Injects a PE file into a foreign processes 11->95 17 RegSvcs.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 23 11->22         started        30 2 other processes 11->30 97 Antivirus detection for dropped file 15->97 99 Multi AV Scanner detection for dropped file 15->99 101 Machine Learning detection for dropped file 15->101 24 RegSvcs.exe 15->24         started        26 schtasks.exe 15->26         started        28 WMIADAP.exe 15->28         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 17->67 69 Maps a DLL or memory area into another process 17->69 71 Sample uses process hollowing technique 17->71 73 Queues an APC in another process (thread injection) 17->73 32 explorer.exe 102 1 17->32 injected 75 Loading BitLocker PowerShell Module 20->75 34 conhost.exe 20->34         started        36 WmiPrvSE.exe 20->36         started        38 conhost.exe 22->38         started        77 Found direct / indirect Syscall (likely to bypass EDR) 24->77 40 conhost.exe 26->40         started        79 Tries to detect virtualization through RDTSC time measurements 30->79 42 conhost.exe 30->42         started        process9 process10 44 wscript.exe 32->44         started        47 rundll32.exe 32->47         started        signatures11 103 Modifies the context of a thread in another process (thread injection) 44->103 105 Maps a DLL or memory area into another process 44->105 107 Tries to detect virtualization through RDTSC time measurements 44->107 109 Switches to a custom stack to bypass stack traces 44->109 49 cmd.exe 44->49         started        process12 process13 51 conhost.exe 49->51         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-02-05 09:46:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u76bfhgta2odzbrmfcmqyey6hwxf772cywvyzmbu5duouev6zfha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
28a65019d2736dd82fdb229c9e6f5ff053c25e095d118ae03359238f44ba22d7
Formbook
30af910477a154c4b07fa1cbb928f78bc7d714329f725b2a1f2cf7f3139ce351
Formbook
7157f19969ea92bb660c62b91144ca8be1d6f1631252c7d1f7125fd957a1cde6
Formbook
94fbf90615b1baf84da26854c9c7b72115eaa12eb8392d898c7689f433980120
Formbook
acdcfb74712f171a6527ea14112eeb4bd482b7ae74f4e2990a946c8ccea8ad65
Formbook
b2fe57ff7504883c1a5050ccf0a6cfe45087a43bea4ce92aec075be6f1852a29
Formbook
bb1aec54bef16432b3a9e9a35cda7dfabf6e20218384adcc05d685f5fb064a4f
Formbook
be689687f31bdae68fe666068033c3ca36c2169bb27b4a7cf43db71826cb2753
Formbook
error
Formbook
+ 115 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:a01d discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250205-l868fssjay/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2466130f-e79f-4391-bc25-0164980f93de
Unpacked files
SH256 hash:
a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e
MD5 hash:
5761dcb8640793699cd177a59cf2c0ed
SHA1 hash:
81ca3ccc56eae9b91b31ebe9f791e03226710204
Link:
https://www.unpac.me/results/df755f5b-ae94-414b-a8f2-9f0ca6dc5a03/
SH256 hash:
bf5f38a7d8570ac65b2f7f6038591117d934471159bcdf2a7db9f260d0147dd9
MD5 hash:
1da6ab388e9fbc9ec5f5dd8fa0b7d9b8
SHA1 hash:
50c8f54ea98bae31a1eff59123893627fb16c204
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/df755f5b-ae94-414b-a8f2-9f0ca6dc5a03/
SH256 hash:
e712bcd56fe64742c0f674f3acff83490f8103c260ea3389f56151b5066b7cd3
MD5 hash:
7bad4197d1ae020c9049a782eb9a71d2
SHA1 hash:
e1253047ea92beb7d161b106765ad8b03bc86b1e
Link:
https://www.unpac.me/results/df755f5b-ae94-414b-a8f2-9f0ca6dc5a03/
SH256 hash:
13e4cd19503453cd78e71f728c9389b2c99e091b215e8ddbec0d81b2f6876f72
MD5 hash:
6a24b2b9224492367a531a14e4c882de
SHA1 hash:
0a55e7a38280f56ad0acdc769e7b795ab22b268a
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/df755f5b-ae94-414b-a8f2-9f0ca6dc5a03/
Parent samples :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 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/a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

Formbook

zip 60a18ac155bb681650c805dd3146c838161548b4612b597f757dafa109598ab8

Formbook

Executable exe a7fc129cd3069c3c862c28990c131e3dae5fff42c5ab8cb034e8e8ea12bec94e

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 60a18ac155bb681650c805dd3146c838161548b4612b597f757dafa109598ab8
  
Dropped by
MD5 997d8f0ec7c71a05c3b8fbbec7188ad4

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments