MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589
SHA3-384 hash: 70a93c8ae9caec1d54e509271edf848001068f0ee0e907bc51c2cbab8ba6faed6f5faa36921d268b6811bfe0f3e3d5d4
SHA1 hash: db2bf07d5200ce08a1c97746034eb96e057895f9
MD5 hash: 8b636c98adc8828e0bfb3756c72d8ecc
humanhash: georgia-sweet-kansas-monkey
File name:8b636c98adc8828e0bfb3756c72d8ecc.exe
Download: download sample
Signature Formbook
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File size:2'102'784 bytes
First seen:2021-08-20 15:02:10 UTC
Last seen:2021-08-20 17:56:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 49152:IQNQNQEQJQEQJQpQEQJQNQNQEQyQ1QGeNk5zGISQNQcb:IccnWnWsnWccnFiANkvScL
Threatray 8'158 similar samples on MalwareBazaar
TLSH T16CA5BE5072B4E710E87643F0D863D6F087B63C6AE86AE21F5D82BEDF7971B410652A13
dhash icon cc8e2969268e8cc4 (2 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7d47b1eaa9220a288db1.zip
Verdict:
Malicious activity
Analysis date:
2021-08-20 12:40:47 UTC
Tags:
trojan opendir encrypted exploit CVE-2017-11882 loader formbook stealer
Link:
https://app.any.run/tasks/2ac5409c-2a92-4f83-b755-615557d4e8aa

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/180976/
Detection(s):
SecuriteInfo.com.HKTL_NET_NAME_Aggressor.9674.11555.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/5bc06fae-deab-47a5-adf5-165933c87dc4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/836492
Signature
.NET source code contains potential unpacker
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
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 dnsIp2 2 Behavior Graph ID: 468931 Sample: gB8j5x4VHp.exe Startdate: 20/08/2021 Architecture: WINDOWS Score: 100 31 www.alphasecreweb.info 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 7 other signatures 2->45 11 gB8j5x4VHp.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\gB8j5x4VHp.exe.log, ASCII 11->29 dropped 55 Tries to detect virtualization through RDTSC time measurements 11->55 15 gB8j5x4VHp.exe 11->15         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 15->57 59 Maps a DLL or memory area into another process 15->59 61 Sample uses process hollowing technique 15->61 63 Queues an APC in another process (thread injection) 15->63 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.paradisgrp.com 128.65.195.232, 49751, 80 INFOMANIAK-ASCH Switzerland 18->33 35 www.simpleterior.com 18->35 37 2 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 systray.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589/
Threat name:
ByteCode-MSIL.Spyware.Noon
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Status:
Malicious
First seen:
2021-08-20 12:32:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
68
AV detection:
8 of 27 (29.63%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hr2rqt4g6yrr5u4l4wb2gahfv4ra6xlimvhkd7kwzaz7gm6quweq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
006dac8da13a28a8c98c6ec8ef112ee55544e0c4676cd2ffb393cb3cd66ebe15
Formbook
398e6661f5ca757d0d7c777a0ed8ca1481b5c2df810008164e1f51deefc2ab48
Formbook
3b850a085ce072cb545fd9422cc8d9eaae19329e27a032edda8bc676d392b8ff
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
6b0af32dca1211680c0879e37e91f18fcb57f1e93dd54df4e0ed098efca7825e
Formbook
9da4d8126ac0c4c0b68066407e24cf1a36e06f0fc22ef87b0a464f90c1374095
Formbook
d80d29653891c1d84ba6b72e1eaafefd78700646859bcaa7ded2fc1e2fbafce4
Formbook
e6e7575f09a3e973c9b315f3206448f9ddd04b3b8ca39d126e02bad763a17948
Formbook
ffeb538e279b53ac314ec71da8a83ffd3693cf31cd3705e23579c7f20d182de6
Formbook
+ 8'148 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cmsr rat spyware stealer trojan
Link:
https://tria.ge/reports/210820-p3jxn27c66/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.odysseysailingsantorini.com/cmsr/
Unpacked files
SH256 hash:
01a38699b9233d3820076fc48b4c51fc2b05ffe267e0e8d35d49c46807bf4ce2
MD5 hash:
1ec6d90667c4b8276f3b0d9a256eb2a5
SHA1 hash:
b03444c137cedde1028f883dcafc29bfea992ac7
Link:
https://www.unpac.me/results/ee722940-7f77-4f99-91fa-19e9acc87f40/
SH256 hash:
3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589
MD5 hash:
8b636c98adc8828e0bfb3756c72d8ecc
SHA1 hash:
db2bf07d5200ce08a1c97746034eb96e057895f9
Link:
https://www.unpac.me/results/ee722940-7f77-4f99-91fa-19e9acc87f40/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589

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
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.

Web download

Formbook

Executable exe 3c75184f86f6231ed38be583a300e5af220f5d68654ea1fd56c833f333d0a589

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1549257/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/180976/

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