MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236
SHA3-384 hash: 8c9d94fb05487cc8c63db95ff6b47f43a544de0cbca9c9cc0a0160f0e03437aec2d06980d67e3e2f046fe0f6710d66b1
SHA1 hash: 18ad06d12e92f1d7a61805d294bb2c5e048f3ec7
MD5 hash: 40c9b68553716171b9a74fa2785cb160
humanhash: iowa-texas-georgia-carbon
File name:40c9b68553716171b9a74fa2785cb160.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:828'928 bytes
First seen:2021-02-10 08:33:07 UTC
Last seen:2021-02-10 11:28:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:aXBQSnZl+lZbAy/TYTXSjQlXkKuTLXF3ONP5nJyuEBwQrA6iQQR6PcvHQ9:aX18bHTcXSjQlUtXF3wKwQMP
Threatray 3'847 similar samples on MalwareBazaar
TLSH EB059C9272715747EFA5B7F41C30568152F0ED2AE631D18DB8C4B3BCEB74AA3522D282
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
97
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b323a26b1ba04acc9c5c265a1b8e0b08.xlsx
Verdict:
Malicious activity
Analysis date:
2021-02-09 07:17:25 UTC
Tags:
encrypted exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/1d563c22-16f1-4406-98b3-d3d3e9085b4d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/116439/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.535.26872.3825.UNOFFICIAL
Create hunting rule

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/604169
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 351128 Sample: 6Xk6d54hwM.exe Startdate: 10/02/2021 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 9 other signatures 2->42 10 6Xk6d54hwM.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\6Xk6d54hwM.exe.log, ASCII 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 6Xk6d54hwM.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.impactnwf.com 81.17.18.194, 49765, 80 PLI-ASCH Switzerland 17->30 32 www.transportersolutions.com 74.208.236.93, 49762, 80 ONEANDONE-ASBrauerstrasse48DE United States 17->32 34 6 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 wlanext.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/41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236/
Threat name:
ByteCode-MSIL.Trojan.SpyNoon
Create hunting rule
Status:
Malicious
First seen:
2021-02-08 23:44:24 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihyidpkqkqb6zfhjvvwpnzew4u2hjaxortdew7rdatfff4ug4i3a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
182fd1343975d43f456f199f379210d562d15ea3c8e4c7bd59899d75c18a2fe9
Formbook
7a434269888c9382307a609aceba2b185542ab901cda169d761c2650c84f2f4e
Formbook
8c50e81d6b4ddb4d9a171d8e4616576fdce7b4904df4272fe4f40ec462eb9421
Formbook
93a0f97c3198a1ba4fafeb2c5fd7bd44f425cc5c9ad126880128d1ec22cc22ec
Formbook
98be979a6ee314a1829acd3d33744d9caf8fe2c871d6b73d3771c76c09584387
Formbook
ba73f24dd89a623711c56ddabd0df7bf27d2099e513e830cafc13e6316a735c0
Formbook
c3d490568e73f61c86d2d4c01e170bdcf3c0d3eb5e309ff3d3fb808a4a867a54
Formbook
cf18069218b5b834227fa33133f629f24be9c582eeb0caaf0d7641520b1d9748
Formbook
d295487f9604941495341ea43a4f21b3beed094c81225ab75e41a0b10541ad9b
Formbook
e16e2748ad4a210f438886c9a564feb8e43e3f1396446fbcdda1512a648955d0
Formbook
+ 3'837 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/210210-9wxc1f5kz2/
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.aftabzahur.com/wgn/
Unpacked files
SH256 hash:
a272312b488605281adfc02fa6678d87a4ee90126c29dd9d860ed333d5702b76
MD5 hash:
cd8056ee3ad184ffa09ef89c092be9df
SHA1 hash:
2f7672deed47d0317e3ada163f4d5f8a13c978a9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/737e2e41-deca-45f4-9c1d-bfdfa41b39f4/
Parent samples :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 hash:
90939f5556c1661bb3795e374f10af7e52dbeb18e9b76edc948a14834d93921f
MD5 hash:
45fc3c4388a2290ed8b74532c3179e71
SHA1 hash:
0307bbd0881f1fdcf5de0da25dc4eac34a2ae0a8
Link:
https://www.unpac.me/results/737e2e41-deca-45f4-9c1d-bfdfa41b39f4/
SH256 hash:
2b2bcf851c2b87033fd24c890c2a1de3642564f7cec7282982d96b8280baa849
MD5 hash:
befb0470c71d676cc891cba16088975d
SHA1 hash:
5b7143f97d1d656fd1cacf70949048c1951b639a
Link:
https://www.unpac.me/results/737e2e41-deca-45f4-9c1d-bfdfa41b39f4/
SH256 hash:
41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236
MD5 hash:
40c9b68553716171b9a74fa2785cb160
SHA1 hash:
18ad06d12e92f1d7a61805d294bb2c5e048f3ec7
Link:
https://www.unpac.me/results/737e2e41-deca-45f4-9c1d-bfdfa41b39f4/
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/41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236

File information

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

Web download

Formbook

Executable exe 41f081bd505403ec94e9ad6cf6e496e5347482ee8cc64b7e2304ca52f286e236

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/994751/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/116439/

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