MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001. 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 4 File information Comments
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SHA256 hash: 8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001
SHA3-384 hash: 5c45717611ded302304f5f477a568a892ef18c85a39052101b3b681d34817bc1df391931db355b25d3e0e837e0d70f89
SHA1 hash: 892aef662cff782d478615ab5e3631c0e9ad5d13
MD5 hash: 8a23748bd6538bc7f349639d7b100260
humanhash: orange-eight-october-eighteen
File name:hesaphareketi-01.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:840'192 bytes
First seen:2021-08-07 06:40:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:254GgfHiwrENcmH/nOLQ9+SboQY3Sa1Zen1hbzM/2iN:25jsHXrENcIOL6HU91ZOk/1
Threatray 7'605 similar samples on MalwareBazaar
TLSH T17E05AE2126FB5A5DF376ABB25BC4B46E8BF6F5739619F0B93E9103824221D408C52733
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
357
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
hesaphareketi-01.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-07 06:43:17 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/279fedbb-5dea-4162-8f97-0780a3ede4ef

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/177127/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.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
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a8f85d29-987e-49c3-a430-ebd4bbffc951
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/828580
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspicious Double Extension
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
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 461011 Sample: hesaphareketi-01.pdf.exe Startdate: 07/08/2021 Architecture: WINDOWS Score: 100 29 clientconfig.passport.net 2->29 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 9 other signatures 2->51 10 hesaphareketi-01.pdf.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\...\hesaphareketi-01.pdf.exe.log, ASCII 10->27 dropped 53 Tries to detect virtualization through RDTSC time measurements 10->53 14 hesaphareketi-01.pdf.exe 10->14         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 14->55 57 Maps a DLL or memory area into another process 14->57 59 Sample uses process hollowing technique 14->59 61 Queues an APC in another process (thread injection) 14->61 17 help.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 37 Modifies the context of a thread in another process (thread injection) 17->37 39 Maps a DLL or memory area into another process 17->39 41 Tries to detect virtualization through RDTSC time measurements 17->41 23 cmd.exe 1 17->23         started        31 www.imaginebyccp.com 20->31 33 www.freedrumlessons4u.com 20->33 35 ghs.googlehosted.com 142.250.181.243, 49741, 80 GOOGLEUS United States 20->35 43 System process connects to network (likely due to code injection or exploit) 20->43 signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-03 14:41:03 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsrxfoxho73skdbcce7rgevtrfkvkx2iycy62kvpbsjsnk7amaaq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
031af74c61339ca40eda7563268d9e2e2803064c141d3c46eb20acad3764f4cc
Formbook
4d2ca668cdde851a6389ee4d0fb089d3e125e2d951dbd7201767174ecafa66ad
Formbook
5043b6f2fb2b01edaf96f2ed748a59957da044dd826bbc3070b5d8c60252b33d
Formbook
66e06710b095c687448e0b08240a99f84dfbfc24882a2c8c9f5b165f58469d8f
Formbook
6c8b4de0f39caa11127409b3ee06f410b0c5642b840f10822ad40af5745690cb
Formbook
72a002cd9cd49afe6f15c5dc2ad7e3f65471b21fd4331202183b87c7ebab7fe3
Formbook
d457980cebdbfd785a77b0d09249f5bc8cca708f5b5e7fe607f1b538faf977c4
Formbook
+ 7'595 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:wz6a rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/210807-cz89ldnqlj/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.setuseny.site/wz6a/
Unpacked files
SH256 hash:
a51d8c29bf0269106fc42c688294299ade89c1c8e57bf78be675389102eb85e5
MD5 hash:
f1b740a14a7e73e5e9e847530fd2e08e
SHA1 hash:
735ef300c5ac3bdb86f87d5b4b1fbf10adb76be7
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/44952281-b39f-441a-8bd1-ee25aa25fcef/
Parent samples :
72a002cd9cd49afe6f15c5dc2ad7e3f65471b21fd4331202183b87c7ebab7fe3
4d2ca668cdde851a6389ee4d0fb089d3e125e2d951dbd7201767174ecafa66ad
6c8b4de0f39caa11127409b3ee06f410b0c5642b840f10822ad40af5745690cb
66e06710b095c687448e0b08240a99f84dfbfc24882a2c8c9f5b165f58469d8f
031af74c61339ca40eda7563268d9e2e2803064c141d3c46eb20acad3764f4cc
5043b6f2fb2b01edaf96f2ed748a59957da044dd826bbc3070b5d8c60252b33d
ce1c500cc108ae09a1a19f0171e5af77d090669ee75ab3835cc64d888d837db9
8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001
50ef55dfb72ff4f84955243ea50f9fecbadbe9c4fb9cbe3078771e949b2ab589
SH256 hash:
bc652f3f88ee2db6c5c604270331a362e36d7c405d126d2050e5d4e8fb472ed7
MD5 hash:
a2a066293dd89f4e082fc0d1331784bd
SHA1 hash:
55979c9a37b32c6f18895217b362d5b9827ff29a
Link:
https://www.unpac.me/results/44952281-b39f-441a-8bd1-ee25aa25fcef/
SH256 hash:
cfef97ff706312dff4edd998aeee22f1283221631ebb0cc954bebbb701c1465c
MD5 hash:
a0f625a3d3348903f3c902f588c0e4f5
SHA1 hash:
20d1f0b74abe6f500e8c21119f55281926210ac0
Link:
https://www.unpac.me/results/44952281-b39f-441a-8bd1-ee25aa25fcef/
SH256 hash:
8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001
MD5 hash:
8a23748bd6538bc7f349639d7b100260
SHA1 hash:
892aef662cff782d478615ab5e3631c0e9ad5d13
Link:
https://www.unpac.me/results/44952281-b39f-441a-8bd1-ee25aa25fcef/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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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.

Malspam

Formbook

Executable exe 8ca372bae777f7250c22113f1312b38955555f48c0b1ed2aaf0c9326abe06001

(this sample)

  
Dropped by
null
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/177127/

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