MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9
SHA3-384 hash: 60cce11f4c145bbfe9625d15506f86298e13578ed1684cc2f97b2bc0cb2c4540d590df14b6233c79dc4a6d30be64ec5d
SHA1 hash: 964079668438ed102da00cfc0fc82e44ab55c45f
MD5 hash: 65d36801e01e7b2053c838e56f64c0d7
humanhash: crazy-robin-ohio-island
File name:PO 1,5001993 21118.exe
Download: download sample
Signature Formbook
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File size:555'008 bytes
First seen:2021-09-28 08:22:58 UTC
Last seen:2021-09-28 13:24:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:4dbNi+hBr7IUAgIQbabjZX8MrFZp9eO7MwR10W1m//bz8:UbNi+hBr8UAgIQbaPZX8MrFAO7X1mHP8
Threatray 9'646 similar samples on MalwareBazaar
TLSH T162C4AFDE1C68A3CFFB5E01F8FA79279C11ABC024D8EB71D3D64AB033112AA595924CD5
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 1,5001993 21118.exe
Verdict:
Malicious activity
Analysis date:
2021-09-28 08:24:12 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/17b59bf7-1a37-492a-a239-ffbe58b69966

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/192437/
Detection(s):
SecuriteInfo.com.CAP_HookExKeylogger.24173.460.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/690cb64b-8e7d-481c-bc2b-ba2e76a940e9
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/859635
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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)
Sample uses process hollowing technique
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 492065 Sample: PO 1,5001993 21118.exe Startdate: 28/09/2021 Architecture: WINDOWS Score: 100 36 www.myesu.net 2->36 38 myesu.net 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 10 other signatures 2->48 11 PO 1,5001993 21118.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\user\...\PO 1,5001993 21118.exe.log, ASCII 11->28 dropped 14 PO 1,5001993 21118.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.dk-tnc.com 218.232.108.237, 49792, 80 SKB-ASSKBroadbandCoLtdKR Korea Republic of 17->30 32 www.graysrbm.online 203.170.80.250, 49784, 80 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Australia 17->32 34 9 other IPs or domains 17->34 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 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/f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-09-28 08:23:07 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6vaaxaafir4cvt46c2uag2go6gzw53iomp6qeacsh46trrkbmluq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
043b45f9d94820186d7324c5f6e0fd7661de15ad29104fd43294e2f3839efa06
Formbook
2ac830fd4c5c4c3522b5cb9983edc13f2580b932875bc9daeb02633b8829fb3b
Formbook
410659d6e76a955d58e88df12ffea3550a57758513630f051c6e66caa343fdad
Formbook
4c5887639c1dfcc0349690d98e9c8034029a6fa2f2e6bdbba96371bf23ce3301
Formbook
54507294252cb270a6b1944f838eb0428d87fbcfaf05e887126d5754af3ec1fa
Formbook
6fd5dbec01eb7f767fc3b4046d9aa50f80e50f5ab9439480efb87620faef473c
Formbook
7024147e75938acd54b804df172c63b57c794e1980632c5f8190ae1e9d0da82a
Formbook
7e2a14525c0058bca08d945d2358fc629e3080cc111d271253e061a4be0bde17
Formbook
7e647d064a55731e15f05904b636037d2339e84ca425f53cf752004cd8797468
Formbook
a2d7a6453efd6b8c31af2e225ae7f93064d44fe328b5bb2e530d820e5e6ca5f8
Formbook
+ 9'636 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ergs rat spyware stealer trojan
Link:
https://tria.ge/reports/210928-j95d5sbbc8/
Behaviour
Gathers network information
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.iselotech.com/ergs/
Unpacked files
SH256 hash:
7498a2d98149c659c04fdb76daa20f50e27ce16a3c7c37c4257dc45bb8c7e093
MD5 hash:
dbf215deb6912bd9500cd835a2e753b0
SHA1 hash:
4aa8d931f88eaecf1737f33750d9a6ba4611d5c6
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/b053b2c6-4c8c-4310-b66b-c66576f3450c/
Parent samples :
410659d6e76a955d58e88df12ffea3550a57758513630f051c6e66caa343fdad
6fd5dbec01eb7f767fc3b4046d9aa50f80e50f5ab9439480efb87620faef473c
7e2a14525c0058bca08d945d2358fc629e3080cc111d271253e061a4be0bde17
f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9
727d99fbf5a7d58b50ea62f289cf59b251ffe3e6f5d9487f7716127654e6e32a
e777d588f24e21fdcc3add6de5b93d5fb498b594a59f03d02b5a7880bc5d5180
009e6b48b7d9b2a802d6e831138b1e55c4390861c123287e134bbc21f8a6e225
SH256 hash:
60860b8eaa357fcb6980f4753219ed5ade57a250b5d19de23c256d75aa232359
MD5 hash:
1dcbbfc88646f079e9c30046de607d35
SHA1 hash:
e0ed378a5ce3d4ee419d83fe9f2a8355db20e2ec
Link:
https://www.unpac.me/results/b053b2c6-4c8c-4310-b66b-c66576f3450c/
SH256 hash:
4f974b1350e8770cae7b492d764044ae5891414f3e09f0003744e6865ba1094f
MD5 hash:
3ec58f763486b52d770b14c04fc02cdd
SHA1 hash:
350cd43372518a86a11d9a9210ea6f07bdcecc66
Link:
https://www.unpac.me/results/b053b2c6-4c8c-4310-b66b-c66576f3450c/
SH256 hash:
6a671abf66304301602b4afd0902840bc3915455cffc58d8916eaa693abe33ec
MD5 hash:
681eca96e4e7b513317178dc7065ef39
SHA1 hash:
24af82015bc57d125f1ccb759840118b2283d1dc
Link:
https://www.unpac.me/results/b053b2c6-4c8c-4310-b66b-c66576f3450c/
SH256 hash:
f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9
MD5 hash:
65d36801e01e7b2053c838e56f64c0d7
SHA1 hash:
964079668438ed102da00cfc0fc82e44ab55c45f
Link:
https://www.unpac.me/results/b053b2c6-4c8c-4310-b66b-c66576f3450c/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f5400b800544/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/f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9

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:pe_imphash
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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.

Malspam

Formbook

r00 5110e6eaa627517fca04a31f287f0b27e854aca253e2fc7cfabc3d468aeae062

Formbook

Executable exe f5400b800544782acf9e16a80368cef1b36eed0e63fd0200523f3d38c54162e9

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 5110e6eaa627517fca04a31f287f0b27e854aca253e2fc7cfabc3d468aeae062
Cape
Cape
https://www.capesandbox.com/analysis/192437/

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