MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab. 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 4 File information Comments
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SHA256 hash: 0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab
SHA3-384 hash: abcc23ea359ebd8e4a606883ce896b388c56ceaf944525b9e1b89dd7d62cb711202bb0fee1d67644c2dfcc564ded837f
SHA1 hash: 121225c8d8ff1acfb30c224bc6b083ddd12a165e
MD5 hash: 48651544b7fb391d678ee448c67ce81a
humanhash: apart-sodium-magnesium-sink
File name:48651544b7fb391d678ee448c67ce81a.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:390'144 bytes
First seen:2022-02-14 07:16:51 UTC
Last seen:2022-02-14 09:16:53 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 6144:vveSUgh06pCoIDxJr3ylrXZDtxvHt8ulMwN1Lxj11AIxoRTPBlWsbhLW:vvhpuuVWMnLxriPQsbM
Threatray 13'641 similar samples on MalwareBazaar
TLSH T11C840123FD071416EA040A39A6F3B7162774AB66CAD3C50799952BBE0C0B735FD426EC
File icon (PE):PE icon
dhash icon 69d4b26868b2cc71 (23 x Formbook, 6 x SnakeKeylogger, 2 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/241291/
Detection(s):
SecuriteInfo.com.Heur.MSIL.Androm.1.9929.32718.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Unauthorized injection to a recently created process
Searching for the window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Gathering data
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/08767577-f8b2-4327-900f-c101adcb31b6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939148
Signature
.NET source code contains potential unpacker
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
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Self deletion via cmd delete
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected Costura Assembly Loader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 571623 Sample: 6m6nH8bDYH.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected FormBook 2->54 56 4 other signatures 2->56 10 6m6nH8bDYH.exe 1 4 2->10         started        process3 file4 44 C:\Users\user\AppData\Local\hus.exe, PE32 10->44 dropped 46 C:\Users\user\...\hus.exe:Zone.Identifier, ASCII 10->46 dropped 48 C:\Users\user\AppData\...\6m6nH8bDYH.exe.log, ASCII 10->48 dropped 74 Tries to detect virtualization through RDTSC time measurements 10->74 76 Injects a PE file into a foreign processes 10->76 14 6m6nH8bDYH.exe 10->14         started        17 conhost.exe 10->17         started        signatures5 process6 signatures7 78 Modifies the context of a thread in another process (thread injection) 14->78 80 Maps a DLL or memory area into another process 14->80 82 Sample uses process hollowing technique 14->82 84 Queues an APC in another process (thread injection) 14->84 19 explorer.exe 14->19 injected process8 signatures9 58 Uses ipconfig to lookup or modify the Windows network settings 19->58 22 hus.exe 2 19->22         started        25 ipconfig.exe 19->25         started        27 hus.exe 1 19->27         started        29 2 other processes 19->29 process10 signatures11 60 Multi AV Scanner detection for dropped file 22->60 62 Machine Learning detection for dropped file 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 31 hus.exe 22->31         started        34 conhost.exe 22->34         started        66 Self deletion via cmd delete 25->66 68 Modifies the context of a thread in another process (thread injection) 25->68 70 Maps a DLL or memory area into another process 25->70 36 cmd.exe 1 25->36         started        72 Injects a PE file into a foreign processes 27->72 38 hus.exe 27->38         started        40 conhost.exe 27->40         started        process12 signatures13 86 Modifies the context of a thread in another process (thread injection) 31->86 88 Maps a DLL or memory area into another process 31->88 90 Sample uses process hollowing technique 31->90 92 Tries to detect virtualization through RDTSC time measurements 36->92 42 conhost.exe 36->42         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-14 07:17:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1eb4790d6bde96e2486580793a9f6759241f0bde48e6b7f1df0e9a1e62e6a1e5
Formbook
8c16cbf4df8137db774d2cb97cc386b052ca7a0b77ee1572fe7a5fc9a5a22ae0
Formbook
d2d2107ce64f31669e2c8dbe31da2cc683087050492fa4e8e31940e30f33ff04
Formbook
db4fa159359fbe0ba9857ae0e971dd206f23a7522b14073151b27bb030db8f5f
Formbook
dee29915a45463d25c7f4de2abac14269137c359f848baf8ad4205fb07e2fa0b
Formbook
e08593ebcd4ac9265c1f27d987a67f43b2c8a9e9c680e9d47901281a4c5878dd
Formbook
f556af7cd24cc02eba24924d19c42966a1a98b84dfabd78c523c55f492d54acd
Formbook
fa4fe52b60d9da8ae735fe5ff04114abd194754fcd4ca94c0558ca7f6a3b3945
Formbook
+ 13'631 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:f1s1 persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/220214-h4dhssgcc3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Formbook Payload
Formbook
Unpacked files
SH256 hash:
ba788d1caa1404518969d25869f4f8c016ee62b634ba58e51d1213de8c845b90
MD5 hash:
5d7e29136ab8fd05974fd6ff813ad2cb
SHA1 hash:
617a7134e826c82f905ab9367febd9e83e6a947d
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ddc919b3-be07-48bd-bb78-b74179a0d0fe/
SH256 hash:
874edfe2badfeb0324824d9e91328b7fb0e30f92dffc508ac7ec6cae45044c96
MD5 hash:
aa4a9e73fb8f03161b46171295cdd411
SHA1 hash:
34905e428b64be6482cf8454b17c6629f31e02ef
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ddc919b3-be07-48bd-bb78-b74179a0d0fe/
Parent samples :
0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab
2af06422e62704ac3eb70a7ce1b5fa08d5a2f0f0bb71b604298aedc24e256f56
46aa9899840a62d1dd93c5ff6e2ed489d401290b4e5ff1d7b6560ca9cf856519
951abf2f4116821009369b593b8b56f353bb6176e7574b44fcb448eaea6515db
69e2e974e72cad787eefb413d7a2cec8bf4f71365ac46093556a8362e9ada553
SH256 hash:
0fba05bd47ede481602b6abbffe45e9659fac2c687dae260ca8cc1fc935b1fb5
MD5 hash:
dd1abda6062145b50273176c02a98918
SHA1 hash:
f4561c12fffb4eb4cd5a73f79977b52c2e568c9c
Link:
https://www.unpac.me/results/ddc919b3-be07-48bd-bb78-b74179a0d0fe/
SH256 hash:
dcb0a0cba905d8d82aa35918470a43343c799d453c54389904ff20555b776cc9
MD5 hash:
305f559889265d0e0f55834bd7bb2395
SHA1 hash:
4c14d9d21dbd82bb50ae8c07fb9fd819cfb85b79
Link:
https://www.unpac.me/results/ddc919b3-be07-48bd-bb78-b74179a0d0fe/
SH256 hash:
0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab
MD5 hash:
48651544b7fb391d678ee448c67ce81a
SHA1 hash:
121225c8d8ff1acfb30c224bc6b083ddd12a165e
Link:
https://www.unpac.me/results/ddc919b3-be07-48bd-bb78-b74179a0d0fe/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/0a4ebd7a3922/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Typical_Malware_String_Transforms
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Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Web download

Formbook

Executable exe 0a4ebd7a3922a03ec0c6db580671714e2318e997af1f6613ede7471d4d81f0ab

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1973984/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/241291/

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