MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments
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SHA256 hash: 8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9
SHA3-384 hash: e096a06fe2f8ad4bad7a4d69fac525311e2b84f004c79a3a167db3a1144f5afa60d02be4faf4a53047e786e9e88d7141
SHA1 hash: cbe9ee020d5fad93b49784f6707614804f3f8ce2
MD5 hash: b87f81920e06301937deb513ff65bf91
humanhash: fix-idaho-monkey-jig
File name:b87f81920e06301937deb513ff65bf91.exe
Download: download sample
Signature Formbook
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File size:413'184 bytes
First seen:2021-10-30 06:45:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:3lfZxfYB0kqjUQFfI7q6rKKW9iG01iTr+OKBteEgobRfTi60MtS1yU:3lfZxfu6sP22G04T6OKIG860zU
Threatray 11'058 similar samples on MalwareBazaar
TLSH T1E094F140533EDB6BD5BC07B880A3166943F1A8227260F7455FE678DB2E72B824E019A7
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b87f81920e06301937deb513ff65bf91.exe
Verdict:
Malicious activity
Analysis date:
2021-10-30 07:23:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/109fac32-1062-4279-9400-1bafb3f7f4c6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.6999.UNOFFICIAL
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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/66ea66de-4f79-4b41-9edc-a14db85360c7
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/879731
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 512163 Sample: b7lnga5stV.exe Startdate: 30/10/2021 Architecture: WINDOWS Score: 100 33 www.greathomeinlakewood.com 2->33 35 greathomeinlakewood.com 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 11 b7lnga5stV.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\b7lnga5stV.exe.log, ASCII 11->31 dropped 63 Tries to detect virtualization through RDTSC time measurements 11->63 15 b7lnga5stV.exe 11->15         started        18 b7lnga5stV.exe 11->18         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected process9 dnsIp10 37 shops.myshopify.com 23.227.38.74, 49796, 80 CLOUDFLARENETUS Canada 20->37 39 www.lizzieerhardtebnaryepptts.com 20->39 41 2 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 53 Uses netsh to modify the Windows network and firewall settings 20->53 24 netsh.exe 20->24         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 24->55 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-10-29 11:50:05 UTC
AV detection:
13 of 25 (52.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
formbook
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Similar samples:
21aa20c4adfe3bea202c5e1d3915072546ee0b927060e02e8c57ffc54caef90a
Formbook
2ff7c84701eaf8b5865bb2716e8a8d0f0ae71ddf725b0330e6b88229585e2ad1
Formbook
5e529cbb901aced8a6af49250afd3d67e059d717d7ecf3edc32e18a9d549361c
Formbook
5fd22c8bf1e7e06ccaa6ebc23410086fe0e3bc30b1613cd6ee734f280c0d6979
Formbook
65acd8c73c518c97a1539bc8e3f62fb8f06431d7030c6cc1463c855aec0ec46f
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
83708560ecc442b5b6dadbdf5af39ae4f1e843664c932a9de3eff1e38bf6d4a5
Formbook
b89374513ef2e5bd74a6922fc049df5d7037136f47c0fa67c6587ea363513958
Formbook
be61aba2c5d56a20b50c5f4a682087840876fdf7504fbf5eb8ac56a0e572fb33
Formbook
e83ce530468ceacafc364791ce8de4cdc2b456cb0df25b93ac4055a99b031702
Formbook
+ 11'048 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:s18y rat spyware stealer trojan
Link:
https://tria.ge/reports/211030-hjns2aefa2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.agentpathleurre.space/s18y/
Unpacked files
SH256 hash:
8ec7e57c64cc5ef3e2f0c03182817fb04abc6262d56cdb633df8cea09a3af976
MD5 hash:
9c7b1fcacdaf197bee3f22e0f1033687
SHA1 hash:
49833d5e862101577012dea72248c7fb2c81089e
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/3ddfbbe9-b95e-4158-a0b0-1f2e58968aec/
Parent samples :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 hash:
b75d1d727778d996effccea2c1b2671606fe1d16d33ed6cd50c32bcc34287a6a
MD5 hash:
0e27b792298994eaea66ff91017245be
SHA1 hash:
846263fa9ae063726ec2f2229ef43038660cb3f1
Link:
https://www.unpac.me/results/3ddfbbe9-b95e-4158-a0b0-1f2e58968aec/
SH256 hash:
4d1ee061c817ea30ca4e461a4f44388662c1c1c2775be2b323858ddbc1679b35
MD5 hash:
1b6d3d31872537cc611ff4322ffc1099
SHA1 hash:
0108adafb207ce044bfb3f7933da45594c545bee
Link:
https://www.unpac.me/results/3ddfbbe9-b95e-4158-a0b0-1f2e58968aec/
SH256 hash:
8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9
MD5 hash:
b87f81920e06301937deb513ff65bf91
SHA1 hash:
cbe9ee020d5fad93b49784f6707614804f3f8ce2
Link:
https://www.unpac.me/results/3ddfbbe9-b95e-4158-a0b0-1f2e58968aec/
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/8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9

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
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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 8aa346b87c8d3d53fb5265cd0c04bbd3c8c978b7e1eb7b2e0958c078322d75e9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1705857/
  
Delivery method
Distributed via web download

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