MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0. 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: 11


Intelligence 11 IOCs YARA 22 File information Comments
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SHA256 hash: c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
SHA3-384 hash: 7d5c33d374913ea6f3bc62354f421c3270ebf241ee363886a85f169ea1f090c17c7784dfe7c742b75fcdbd933826f7a9
SHA1 hash: ab49ffd70813d530c0aaeea94dfa6d868252e6b2
MD5 hash: 6d5cd1e6f5e29f80268a7a1c2c6eebd3
humanhash: zulu-washington-happy-lactose
File name:CV.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:711'680 bytes
First seen:2023-11-28 14:07:18 UTC
Last seen:2023-11-28 15:18:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:VNF7hZJW9ka/pU8Zpnue/ZzUku5cinYQO9VS6vUYioQQmbCpb:VNFNDW1U8ZpnuehzUku5cintO9HMdop
Threatray 268 similar samples on MalwareBazaar
TLSH T114E4124832BC8706E07F97FA19B6621103F66559A0B0E7A99EC326FF49A1F410B55F0F
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
307
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/460954/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process with a hidden window
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
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6565f446380413dc0c2550f6/reports/9148c6ec-9590-402e-9a82-fe95e755d0f4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
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:
Malicious
Link:
https://analyze.intezer.com/analyses/ebb49606-34ca-4132-b949-f7934eb9fd08
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1349300
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
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: 1349300 Sample: CV.exe Startdate: 28/11/2023 Architecture: WINDOWS Score: 100 52 www.zzennsensual.com 2->52 54 www.zhixiao6.com 2->54 56 18 other IPs or domains 2->56 68 Malicious sample detected (through community Yara rule) 2->68 70 Antivirus detection for URL or domain 2->70 72 Sigma detected: Scheduled temp file as task from temp location 2->72 74 6 other signatures 2->74 10 CV.exe 7 2->10         started        14 uKGeZjst.exe 5 2->14         started        signatures3 process4 file5 48 C:\Users\user\AppData\Roaming\uKGeZjst.exe, PE32 10->48 dropped 50 C:\Users\user\AppData\Local\...\tmpD767.tmp, XML 10->50 dropped 84 Uses schtasks.exe or at.exe to add and modify task schedules 10->84 86 Adds a directory exclusion to Windows Defender 10->86 88 Injects a PE file into a foreign processes 10->88 16 CV.exe 10->16         started        19 powershell.exe 21 10->19         started        21 schtasks.exe 1 10->21         started        90 Multi AV Scanner detection for dropped file 14->90 92 Machine Learning detection for dropped file 14->92 23 uKGeZjst.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures6 process7 signatures8 64 Maps a DLL or memory area into another process 16->64 27 jQMTARsKQheqKwMmmbtXqgHKvZS.exe 16->27 injected 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 jQMTARsKQheqKwMmmbtXqgHKvZS.exe 23->33 injected 36 conhost.exe 25->36         started        process9 signatures10 38 dllhost.exe 13 27->38         started        66 Maps a DLL or memory area into another process 33->66 41 dllhost.exe 33->41         started        process11 signatures12 76 Tries to steal Mail credentials (via file / registry access) 38->76 78 Tries to harvest and steal browser information (history, passwords, etc) 38->78 80 Writes to foreign memory regions 38->80 82 3 other signatures 38->82 43 jQMTARsKQheqKwMmmbtXqgHKvZS.exe 38->43 injected 46 firefox.exe 38->46         started        process13 dnsIp14 58 pfannen-scholl.info 81.169.145.160, 49770, 49771, 49772 STRATOSTRATOAGDE Germany 43->58 60 lederjacke24.com 81.169.145.166, 49782, 49783, 49784 STRATOSTRATOAGDE Germany 43->60 62 12 other IPs or domains 43->62
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-28 09:14:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 37 (59.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yhkhmh2fpo3awso6ursrum2u3ilvupqsvl6ukkwrq3a3u4zxztia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
499b9aba5bbcc6a66bc341089f9cf3debf205fc2ac3c9ee85862f395bc9eed66
Formbook
4d5e7328c921bb038230d1e5bf189caf0e872b5c78c6a98b05526a3d876e8623
Formbook
a4ad5a05b9140ab9fe748d59fcadfaec272b6b8eecad5bc1eb2f1d700e353e52
Formbook
a55ec2f0c3ebef886fb024d3147ee7fff8c162955ef8e53c161a04e9fd9d653f
Formbook
c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
Formbook
ddafb7c555ea7194a651ee7fbdc40ef9db4253b9e2e318a16b0a72223eb8b42d
Formbook
f9b14ff098a68f6150bd3e40ded6710ce1a0a11962e5b198beb1bd3a7863a2b1
Formbook
+ 258 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231128-rfjvcaad62/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Unpacked files
SH256 hash:
a89bac9dc367e40e1c54fe9bba3fdbecaf37ade14a6e48793671c7ab1b90eeba
MD5 hash:
a4facccc3557e6f06dda9fde43949f3c
SHA1 hash:
c060cd4a2eef1dde284a8c11b12e551fcf884387
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
SH256 hash:
070e8a42b47f7cb36c6ee9335c0a6341ba66681fb4e694deb06ceff90e453201
MD5 hash:
bbfa42b89636baa3484077a3315795fd
SHA1 hash:
a07cbb0e73aec5c44c0eebd3e28ccdd01a529f33
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
SH256 hash:
f5a8f5ded618fd3989fa98a3c2d87c4853d6e10ecb1313cd5ddd7df375336b31
MD5 hash:
243f9990bb7d68a3f6e4d3999800da5b
SHA1 hash:
ba555175d12f19f6288a3574738bcd6c8b747e3b
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
SH256 hash:
605700b7450edd9fda832112441d5bb51e24dacf716fc4922d60b23ce212bac3
MD5 hash:
52a2344a6c194bfc60826000473fb974
SHA1 hash:
82ef582b251d773e884ef8b3273abf0ca672024d
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
SH256 hash:
c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0
MD5 hash:
6d5cd1e6f5e29f80268a7a1c2c6eebd3
SHA1 hash:
ab49ffd70813d530c0aaeea94dfa6d868252e6b2
Link:
https://www.unpac.me/results/95eb7144-a41a-4c46-bc5f-c049f70c151a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c1d4761f457b/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/c1d4761f457bb60b49dea4651a3354da175a3e12aafd452ad186c1ba7337ccd0

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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/460954/

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