MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62. 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 2 File information Comments
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SHA256 hash: ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62
SHA3-384 hash: 9d01bf3d8ba8df06837da6b3a40a0a44c9ac2dfdfb187322decfa42b1094bb59b505018f2fd85222a1d93dce8ada3c83
SHA1 hash: 598f275e8f80adf8770307a7c419f5e7f0e59673
MD5 hash: 58daee3fb7479bf66f7bfbd8ff7bc715
humanhash: fish-louisiana-mango-grey
File name:ARCO-Purchase-Requisition-NO-REQ-05426.exe
Download: download sample
Signature Formbook
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File size:592'896 bytes
First seen:2022-08-17 15:47:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'616 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:Ooin11R/5P2+/SYViAo69DdqstQ3fGFgLmQZOr2AB:OoiHP2YVxDd/Q3uOO
TLSH T16CC4122277AB8E72C45C237586E600085379F747D167EB8F2ECE22D95523BCE0592B87
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
329
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ARCO-Purchase-Requisition-NO-REQ-05426.exe
Verdict:
Malicious activity
Analysis date:
2022-08-17 15:50:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ec750696-7546-43f6-97d0-71c85727f1a4

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/299342/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.12627.30770.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62fd0df63cbb9456913d04e1/reports/fcee855b-8594-4264-8764-810d3bd86b6b/overview
Result
Verdict:
UNKNOWN
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/3c22fccf-e9f6-47a3-bb0f-a7bc376c15ef
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1053178
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-08-17 15:56:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=55jwvfug3x5kpjbk5aiaqxw7qlfyy33kvtiosvmckzj7erx47jra._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/220817-s8rw4ahehl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
eb8c6564ffac1de614bac77c48be42ba9974b44ef3e86c41910a195822b7651a
MD5 hash:
bf5ba5f88892dc33864a8ebc5b6aba1b
SHA1 hash:
0b75848120a1b83f5cbce189e30bc64692da550f
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
SH256 hash:
551ef0181260a5ab5728a618c2e86443753aaeb425e6c3b1346dfb0a661c73af
MD5 hash:
3c7205139e6aabd7de040b15021c24ed
SHA1 hash:
e4c66e4ca1bb3b5488d7c4ba7fddc8cac118955f
Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
SH256 hash:
e869517b2e8d5a94c97485800627251ae397f184196dab8cc27f290dab4e9c37
MD5 hash:
cb0e213cdf3d3610007c150ce2adae7d
SHA1 hash:
e1a069085bcf5bcb99dcddbcc9e6eb02ff1db518
Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
SH256 hash:
3cf66b84a0cba14879401344ba2c7f8c850d1e97f8b71408d8220d23c774674e
MD5 hash:
b6b0ea66bccbd8e475b18c7e37de1cec
SHA1 hash:
1c37b074fd54fb459c79cfa1226eb6a9bf59bafb
Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
SH256 hash:
ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62
MD5 hash:
58daee3fb7479bf66f7bfbd8ff7bc715
SHA1 hash:
598f275e8f80adf8770307a7c419f5e7f0e59673
Link:
https://www.unpac.me/results/c439b24a-3081-48ea-9b63-c97e1961e30f/
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/ef536a9686ddfaa7a42ae810085edf82cb8c6f6aacd0e955825653f246fcfa62

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/299342/

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