MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bcd0185dc4996f731ef44c4964b0ed36dcf1df8aef3d1c608425603c27e862c2. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments

SHA256 hash: bcd0185dc4996f731ef44c4964b0ed36dcf1df8aef3d1c608425603c27e862c2
SHA3-384 hash: 0714e4dfa7ae96ea7af5bd0b71d1d07398febc5432231af1e4b074f628e887c7ec99d32d9b8a8be7022746ee5844f243
SHA1 hash: bf84b9aa2b805c92eac415ce6fb036e5400bf4b9
MD5 hash: 30a40975bbf2cd363f1fecdd1cc16e06
humanhash: item-timing-summer-montana
File name:VMCTlDnOh8xQ91k.exe
Download: download sample
Signature Formbook
File size:698'880 bytes
First seen:2025-02-14 06:46:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:EFHH/DneK/3wTTjnQxMlnPL4yO6fj92MgQHNa0hkAw5PxTK91Ry+H9dP7:E5HzeLTgUPL4owMgQHNasRwJxTKzRzHL
Threatray 4'230 similar samples on MalwareBazaar
TLSH T181E4F1C43B2AE70ACE955930CA35EEB192A91DACB101B9E35FDD3B17B5AC1115D0CF06
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
File icon (PE):PE icon
dhash icon 7474f4b470c4ecc0 (6 x Formbook, 4 x AgentTesla, 3 x VIPKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
446
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
VMCTlDnOh8xQ91k.exe
Verdict:
Malicious activity
Analysis date:
2025-02-14 06:53:24 UTC
Tags:
formbook stealer xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
phishing micro shell spawn
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
Unauthorized injection to a recently created process
Restart of the analyzed sample
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed packed packer_detected
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1614847 Sample: VMCTlDnOh8xQ91k.exe Startdate: 14/02/2025 Architecture: WINDOWS Score: 100 63 www.hueaddd.xyz 2->63 65 www.cw8.xyz 2->65 67 9 other IPs or domains 2->67 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 89 9 other signatures 2->89 11 VMCTlDnOh8xQ91k.exe 7 2->11         started        15 OTzZRKkNWpd.exe 5 2->15         started        signatures3 87 Performs DNS queries to domains with low reputation 65->87 process4 file5 55 C:\Users\user\AppData\...\OTzZRKkNWpd.exe, PE32 11->55 dropped 57 C:\Users\...\OTzZRKkNWpd.exe:Zone.Identifier, ASCII 11->57 dropped 59 C:\Users\user\AppData\Local\...\tmp65D0.tmp, XML 11->59 dropped 61 C:\Users\user\...\VMCTlDnOh8xQ91k.exe.log, ASCII 11->61 dropped 91 Uses schtasks.exe or at.exe to add and modify task schedules 11->91 93 Adds a directory exclusion to Windows Defender 11->93 95 Tries to detect virtualization through RDTSC time measurements 11->95 97 Switches to a custom stack to bypass stack traces 11->97 17 VMCTlDnOh8xQ91k.exe 11->17         started        20 powershell.exe 23 11->20         started        22 powershell.exe 23 11->22         started        30 2 other processes 11->30 99 Antivirus detection for dropped file 15->99 101 Multi AV Scanner detection for dropped file 15->101 103 Injects a PE file into a foreign processes 15->103 24 OTzZRKkNWpd.exe 15->24         started        26 schtasks.exe 15->26         started        28 OTzZRKkNWpd.exe 15->28         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 17->69 71 Maps a DLL or memory area into another process 17->71 73 Sample uses process hollowing technique 17->73 75 Queues an APC in another process (thread injection) 17->75 32 explorer.exe 67 1 17->32 injected 77 Loading BitLocker PowerShell Module 20->77 34 conhost.exe 20->34         started        36 WmiPrvSE.exe 20->36         started        38 conhost.exe 22->38         started        79 Found direct / indirect Syscall (likely to bypass EDR) 24->79 40 conhost.exe 26->40         started        42 conhost.exe 30->42         started        process9 process10 44 WWAHost.exe 32->44         started        47 mstsc.exe 32->47         started        49 autochk.exe 32->49         started        signatures11 105 Modifies the context of a thread in another process (thread injection) 44->105 107 Maps a DLL or memory area into another process 44->107 109 Tries to detect virtualization through RDTSC time measurements 44->109 111 Switches to a custom stack to bypass stack traces 44->111 51 cmd.exe 44->51         started        process12 process13 53 conhost.exe 51->53         started       
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-02-13 12:58:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
27 of 37 (72.97%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:b202 discovery execution rat spyware stealer trojan
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
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Command and Scripting Interpreter: PowerShell
Downloads MZ/PE file
Formbook payload
Formbook
Formbook family
Unpacked files
SH256 hash:
bcd0185dc4996f731ef44c4964b0ed36dcf1df8aef3d1c608425603c27e862c2
MD5 hash:
30a40975bbf2cd363f1fecdd1cc16e06
SHA1 hash:
bf84b9aa2b805c92eac415ce6fb036e5400bf4b9
SH256 hash:
7350989f430ab79bfd8b804475f3f710daf39d695402413d96b2394fc98bd43c
MD5 hash:
50f02f7f5461ea6b97d17d81190b0ba9
SHA1 hash:
9a4476181087893fafd653fb376152730cb00b53
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
e712bcd56fe64742c0f674f3acff83490f8103c260ea3389f56151b5066b7cd3
MD5 hash:
7bad4197d1ae020c9049a782eb9a71d2
SHA1 hash:
e1253047ea92beb7d161b106765ad8b03bc86b1e
SH256 hash:
58905bdfa9dfd2efe78d0241b4baf6354a3521f225954ccb27d61607897ca1d2
MD5 hash:
d0bbcd6b5cb2477aa27d78d66336107c
SHA1 hash:
98610fffdd1159851fbd3d166033905aff26747c
Detections:
win_formbook_w0 win_formbook_g0 win_formbook_auto FormBook Windows_Trojan_Formbook Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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.

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 (GUARD_CF)high

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