MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246. 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: 9


Intelligence 9 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246
SHA3-384 hash: c5b43b0d8cc649c794bae812df320baa94aabb74ae9e3097db64b282d985f09976e352b73a23ebbbd2bd2c5bcfa843c1
SHA1 hash: a77a11bf10e16cfd1eb0f87d97caa6f5d3f5ab02
MD5 hash: 064ea7267c6a304cbba118aaf852654d
humanhash: charlie-xray-artist-grey
File name:064ea7267c6a304cbba118aaf852654d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:876'544 bytes
First seen:2020-12-04 19:33:15 UTC
Last seen:2020-12-04 21:48:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:LVlGiNz3pevdST0sDd+YpjpsZ1HVYhkK:g4T0Ad9pjpsZdVa
Threatray 3'123 similar samples on MalwareBazaar
TLSH AB153A366F641B29F13A673C95A01441A7FEAA93E317CC9D7CF201CB0727E46CAD152A
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/106803/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.44834591.27366.15040.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Launching cmd.exe command interpreter
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/555996
Signature
.NET source code contains very large strings
Antivirus detection for URL or domain
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 327099 Sample: 28YPAd8yWe.exe Startdate: 04/12/2020 Architecture: WINDOWS Score: 100 35 www.naturesdagger.com 2->35 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 5 other signatures 2->49 11 28YPAd8yWe.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\28YPAd8yWe.exe.log, ASCII 11->33 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Injects a PE file into a foreign processes 11->61 15 28YPAd8yWe.exe 11->15         started        18 28YPAd8yWe.exe 11->18         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 20 explorer.exe 15->20 injected process9 dnsIp10 37 sbsfe-p11r.geo.mf0.yahoodns.net 67.195.197.25, 49748, 49771, 80 YAHOO-3US United States 20->37 39 www.jasmintavarez.com 98.13.194.70, 49740, 49758, 80 TWC-12271-NYCUS United States 20->39 41 20 other IPs or domains 20->41 51 System process connects to network (likely due to code injection or exploit) 20->51 24 cmd.exe 20->24         started        27 autofmt.exe 20->27         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 29 cmd.exe 1 24->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2020-12-04 17:41:49 UTC
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
2664162d0341d8e5cf1cf3a290b77406d87111e3c9ff3fcf3a4f0836d15d3afe
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2bda7325843b48687e064e2abeeef3f5eae5865fceccbbb0ad5229fcf624bf40
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6d923f02c2252e4a2ea98a8685fc5237354e2853791855f1a451a390dd85cbb9
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7e43a881578a70074b8cd80b8dca635ba19180923833a32638dfbd5767216dee
Formbook
9a176cf24fa09ec01bb6e51507849fa8aad355bb25eba73ce43f63579997633a
Formbook
9f5779b1c4f0c33f93c5745623a806b3a3de57f574b05bbd15a46c3b64eea592
Formbook
d995c73f2e399b8c2fbb7c2fd6b32d7f91113cc86fa63fe560966f21e26c5ac1
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e78b5071209858cdcb5ce02f7df3c3fb857088f7088b964791d289c789451e67
Formbook
edb4639fe2eeb567856790fc73f716baeea57ab54fc91e31f49309009978de55
Formbook
+ 3'113 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/201204-9jaer53qp2/
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.cna-notary.com/mz59/
Unpacked files
SH256 hash:
f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246
MD5 hash:
064ea7267c6a304cbba118aaf852654d
SHA1 hash:
a77a11bf10e16cfd1eb0f87d97caa6f5d3f5ab02
Link:
https://www.unpac.me/results/7c2dffd1-63de-4ae6-88df-81ca5bd4fe0e/
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
Link:
https://www.unpac.me/results/7c2dffd1-63de-4ae6-88df-81ca5bd4fe0e/
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/f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe f38659e0b47cf0d1c0a61aa87256fdf60d04b2f41a935995b2346849f2f6b246

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/886182/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/106803/

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