MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16
SHA3-384 hash: f04ebe63510c38349d592b5bb901472addb1bcb4de485cc433ad59de594538928068789ac69cb2638cc190a573d7af2c
SHA1 hash: c6a1f7ec74df5f2b938afbd628ebf026000fac8f
MD5 hash: bb712012e3d293f7b3fb208b7601be7b
humanhash: floor-helium-high-don
File name:bb712012e3d293f7b3fb208b7601be7b.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:652'288 bytes
First seen:2023-08-15 12:52:28 UTC
Last seen:Never
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:vcaa4lrrE7cAakbrkpvv0hqjyPuiGYprf:vcz4lXEg3dvMojQSYpj
Threatray 2'801 similar samples on MalwareBazaar
TLSH T16AD479C2E9B6D6E3C96587F5609224185F393FE93069C2941CB231D6B6F0B043793A7E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
MT103-BIBBC2164179.docx
Verdict:
Malicious activity
Analysis date:
2023-08-15 10:40:12 UTC
Tags:
exploit cve-2017-11882 loader formbook xloader stealer spyware
Link:
https://app.any.run/tasks/43b88537-f17e-4119-826e-bbea9d3afe9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/442836/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/878eb09b-67d2-4dae-99e9-005b4a792405
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1291464
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1291464 Sample: t47no1npby.exe Startdate: 15/08/2023 Architecture: WINDOWS Score: 100 34 www.gaoxiba150.com 2->34 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 7 other signatures 2->44 11 t47no1npby.exe 3 2->11         started        signatures3 process4 signatures5 52 Tries to detect virtualization through RDTSC time measurements 11->52 14 t47no1npby.exe 11->14         started        process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 4 6 14->17 injected process8 dnsIp9 28 198.54.117.215, 49776, 80 NAMECHEAP-NETUS United States 17->28 30 www.gaoxiba150.com 43.228.76.51, 80 CHINANET-YUNNAN-IDC1CHINANETYunnanprovinceIDC1network China 17->30 32 11 other IPs or domains 17->32 36 System process connects to network (likely due to code injection or exploit) 17->36 21 WWAHost.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-08-14 23:57:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nanu7notormd7klbxkfnc4kylqf2tuxdi3c7xnx45erzfiikfula._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03e156f16efbda2a891a6519a282ad085325d498695287ee92ad056f7d1c2422
Formbook
2a1a01f7dbce9cae3601bcf859fd7984cfa761783f929448e59a90dd56f43fa9
Formbook
3c3ae98bf770e4af3eca938d72bcfcab9bfc5415d599157fce0c744aa814dcfa
Formbook
42b1234da56fe61dddd91fed24d68d3d12add952d2dc36f7ef3b15d8441dc439
Formbook
43440434172d5730884fa5f0ae4f7ae73c4815e74618d18bc405d18dd325fed4
Formbook
49698b30764a0b6ded2f0164c32670a784fa294b656008bee2337a4600da406f
Formbook
5976276fb72cd6fca6b74ef6480cdfb439a14b8c52ab9e442b0ee85c130a5f08
Formbook
68561f9a18130d1f0e2a8ca14b9e9344a7f624bb599a766a5b41e16fd728e192
Formbook
dade1a3b53b651efe40452781b07585baab2f75133c1d8be528a4ebb942b595e
Formbook
fa278261af3ab337d468f32853cbf7dc6f13bb529684f45d92a2069ee21318b4
Formbook
+ 2'791 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:oy30 rat spyware stealer trojan
Link:
https://tria.ge/reports/230815-p4mvsscg31/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
ac8768f08b9495e7023b01546679be265510f5c2512d8bc2174d846eaeb379ab
MD5 hash:
4fafab18430d6a314b9e90797d939a72
SHA1 hash:
d3a649f6f6d72cf7416b325b6ff2f0f6aa1fd312
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/f1514f7e-2606-41d8-b620-c18ab50528ab/
Parent samples :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 hash:
7b1e678c7c4eee7e46e6cfbd53bb95989e81b129d289bca515545a19a6e02a58
MD5 hash:
69d3955a4822a33a3019d1c11458205b
SHA1 hash:
de29084906a9d27fb055e35d4b9615fc4d357093
Link:
https://www.unpac.me/results/f1514f7e-2606-41d8-b620-c18ab50528ab/
Parent samples :
3f0862dc7485fc5c5d3eab573dd2dfedad47241d7dbaf7c8cfd218ff105a0ace
14f4fe0a5de3161df5631f5f50d4caf56f29e6a6a26c536ac6956944d8883b0e
9289314aab6aaed64dae4f685d00bf936b7e43f03105a88e5ec457b82261e41e
486d2fae164dfd24b2d443ffd775d83f33136a746bded12f3e05cade26bacd24
SH256 hash:
2ac2f55e15fd8da559f99925ceee9166ca978e94cbc53a5cb29bf02d0a76ac7f
MD5 hash:
1081db0b25581c7958e6fbff4d9aa64a
SHA1 hash:
bcb0e0fe844884a5b0d05cd3b0cc5fd7a5ff53b9
Link:
https://www.unpac.me/results/f1514f7e-2606-41d8-b620-c18ab50528ab/
SH256 hash:
4ea43670f21747fabb33cc77f7da32eddb475aadf3c555c30694aa6a29ea2818
MD5 hash:
2721a1f8fe5561f3e2918065ef277e4a
SHA1 hash:
03fce89ba76cfcfdc9b2725fd0529249b43d401a
Link:
https://www.unpac.me/results/f1514f7e-2606-41d8-b620-c18ab50528ab/
SH256 hash:
681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16
MD5 hash:
bb712012e3d293f7b3fb208b7601be7b
SHA1 hash:
c6a1f7ec74df5f2b938afbd628ebf026000fac8f
Link:
https://www.unpac.me/results/f1514f7e-2606-41d8-b620-c18ab50528ab/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/681b4fb5d374/report/overview.html
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
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Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 681b4fb5d374583fa961ba8ad171585c0ba9d2e346c5fbb6fce92392a10a2d16

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2695772/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/442836/

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