MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9619641b9ca07b139cc64d223eadad4731fcbfce7e0653ce4583b4ea05a686d. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments 1
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SHA256 hash: c9619641b9ca07b139cc64d223eadad4731fcbfce7e0653ce4583b4ea05a686d
SHA3-384 hash: e0900d40ea7647383e6508f29c5b390543064cdecf54f4cfec6e220413fad0a42dfc929ebd58afbefb23613c6928ef0e
SHA1 hash: fd4e4d8c5ca9ee17440d8ba313964ee1f8d689b5
MD5 hash: 1bb71f860cac16c4c91c54c3c3265bda
humanhash: robert-mars-angel-early
File name:1bb71f86_by_Libranalysis
Download: download sample
Signature Formbook
Create hunting rule
File size:611'840 bytes
First seen:2021-05-14 17:01:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:srV9sI1blVffLr7oMvuHo8HPrZG94oVMXDcqC/QVI17S:89sI9zE2So8HPoWhlZVw7
Threatray 5'150 similar samples on MalwareBazaar
TLSH C0D4F11737E4C69CD6BE2BB64172521483F1B103EA27D72DA988A16D0CB7BC1D6063E7
Reporter Libranalysis
Tags:FormBook


Avatar
Libranalysis
Uploaded as part of the sample sharing project

Intelligence

File Origin
# of uploads :
1
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Proof of banking details.docx
Verdict:
Malicious activity
Analysis date:
2021-05-14 15:35:53 UTC
Tags:
generated-doc opendir exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/538eb110-7575-40e1-aa01-77e01fe4d910

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/156814/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/782131
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 signatures2 2 Behavior Graph ID: 414527 Sample: 1bb71f86_by_Libranalysis Startdate: 14/05/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 5 other signatures 2->42 10 1bb71f86_by_Libranalysis.exe 3 2->10         started        process3 file4 28 C:\Users\...\1bb71f86_by_Libranalysis.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 1bb71f86_by_Libranalysis.exe 10->14         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.motels2.com 156.227.177.202, 49743, 80 POWERLINE-AS-APPOWERLINEDATACENTERHK Seychelles 17->30 32 www.saveursdelaferme.com 213.186.33.5, 49745, 80 OVHFR France 17->32 34 21 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 mstsc.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/c9619641b9ca07b139cc64d223eadad4731fcbfce7e0653ce4583b4ea05a686d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-05-14 11:16:24 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
3c94599cada17b9fae62316e54a1d69db7c475223721a5a57abe8774a2b5da74
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432dc27473a2ca5168e30969aab3359bb01f5936babc35811f336bcc3f195914
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6fac6e1f7f8cdd8cec52b2dd7a23fd434084c7d12ef0f04deaa52794d3612ef7
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786e182e324b83c59ad1b095f7d520598a1b72cfce239b4274d462c7ba45bf18
Formbook
852cc855a1aa63d081ebeec5fd688a3c80d50a14d80c760256c4b46208d77b8d
Formbook
8d77ac5e45a0f443b317f1a717dffd55e98319508cc05080ea006b5fcc93c78a
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d337cba627486e1f99e4a96407591609d888c6656a4010b88047e7cd1ab19482
Formbook
de3c81ef7e59a386f6572d4c095739d45493d90b03c348748200012ec165372f
Formbook
+ 5'140 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210514-eaqgcfz9x2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.yuanyouwang.com/njhr/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c9619641b9ca07b139cc64d223eadad4731fcbfce7e0653ce4583b4ea05a686d

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
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.

Cape
Cape
https://www.capesandbox.com/analysis/156814/

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-14 18:10:45 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data