MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
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SHA256 hash: f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e
SHA3-384 hash: 1c25a726a59dd772db90592eaa24c28def0c82f10a20521123b055713fc92d0138cce20655d347b60ac727e4bddb4d25
SHA1 hash: a06c3031d3098a51160179458f604b0382c26a16
MD5 hash: 33b08a6f291d2d62ce11bc349ed3487d
humanhash: kitten-muppet-edward-lactose
File name:33b08a6f291d2d62ce11bc349ed3487d.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:700'928 bytes
First seen:2023-04-24 14:35:08 UTC
Last seen:2023-05-13 22:42:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:YWda76TLGyuxNYZaOWiOBR7Eb1VW7YRkV42mEFdCH:YW3SVx2ZaqOB9W1qFXFUH
Threatray 2'752 similar samples on MalwareBazaar
TLSH T1E3E4BF2B226ED4B6D15E66B3D0E917FB0F6C2ECAED3990430BA87DD431727B91B48411
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
241
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
swift copy.doc
Verdict:
Malicious activity
Analysis date:
2023-04-24 14:38:06 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/26c60933-c0fd-4461-bdf8-c492a4cf08f1

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/384591/
Detection(s):
Sanesecurity.Malware.28872.BadIN4.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/644693d42644a56ac26830b4/reports/d302eb5a-3e2a-4551-b2d4-79f264c393d2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/3f5906d4-5f55-4b6e-b926-0e419f290ec2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1220103
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
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 853051 Sample: zfZ3LtB6Fj.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 31 www.mysong-yoursong.com 2->31 37 Snort IDS alert for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 7 other signatures 2->43 11 zfZ3LtB6Fj.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\zfZ3LtB6Fj.exe.log, ASCII 11->29 dropped 53 Tries to detect virtualization through RDTSC time measurements 11->53 15 zfZ3LtB6Fj.exe 11->15         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 Queues an APC in another process (thread injection) 15->61 18 explorer.exe 2 1 15->18 injected process9 dnsIp10 33 www.cathfrei.com 107.148.139.234, 49696, 80 ASLINE-AS-APASLINELIMITEDHK United States 18->33 35 www.track-race-package.com 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 22 control.exe 18->22         started        signatures11 process12 signatures13 47 Modifies the context of a thread in another process (thread injection) 22->47 49 Maps a DLL or memory area into another process 22->49 51 Tries to detect virtualization through RDTSC time measurements 22->51 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2023-04-24 10:01:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
17 of 22 (77.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7b35vlrsmewpon3ulmrem7dd6y7bsyngcnjises52iugat5aykpa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
02ea9a838872751f53f53611015ee23062c2cbc9b71a962caf500e54a145e87e
Formbook
067bea125f176d75cabed99b0bc6bd3a3957baf3a361d6d3848911446e48d1b1
Formbook
0b89806418ec582854a24adb93fba607c7f27938f2b653a081aefd1a5e419e4f
Formbook
10e1fd083fbaa700f1580863bc6bdc928fff23f2edc479c6a8d4e3d7ff57926c
Formbook
6afbb9ebc94ae5fbc1a98207af3ce84dec75c243605ebbd6b15b721165e4130a
Formbook
8a1f57853b44e3702f2758a4ad46225af7fa0a847ee22b0a9f190be5c062869b
Formbook
bd407e66453e00d96368122b1d8761c995aa3a9606995dbd46ec1629debb18ed
Formbook
cbdac32d6f43a1f03a26cc2fcc6ea13586f0d7f85764c1626cc71ce30bc0434b
Formbook
df810d99cd1588f21a80f27dc691efb44083567f1385978dad10611858bad134
Formbook
f0ce6536bd8f80c0ee0ff1a246fd8447514906a38d4d24ec0d373c814180f9fb
Formbook
+ 2'742 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:e8fg rat spyware stealer trojan
Link:
https://tria.ge/reports/230424-rykjlaeb5x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
895f15ca9cefb2058b044c12ca33bbed2a857ca5a9c073464861224808ad061e
MD5 hash:
de26eb905c26dc8261dfeae6d176f6d7
SHA1 hash:
635149304cac3552fff59b5748e8186e27add4bc
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
Parent samples :
f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e
02ea9a838872751f53f53611015ee23062c2cbc9b71a962caf500e54a145e87e
9d1779f9a627d5d1cd19c2a1f74f71eddb92cc11d8757d4ea3a2e7b315f4186d
e4355828a192e2a9680ccde52befb9d6431f21f69572156cba5197409fc7cdb6
3e48c872f879fc29b5440b844c42780669d2c2d3c219806d0c02c4839482c86f
290e9c2d3b53a9c41d8cc6a76b053217cf499ff19f7a73a89335fa0ae1006579
SH256 hash:
00774bf028cde61cec1123d3428858b1c2661fdb066290bd754136334d5d3d08
MD5 hash:
e4ccf29dff1a61537a12ab25374791d6
SHA1 hash:
ae4c2df602515b671c5ad85d728874bf41549de9
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
SH256 hash:
9610efccd7325bd81f78200d10b728604b364d22f1c256fdf82a49554484c90e
MD5 hash:
73d3e96c478597a2a93f78b015a96145
SHA1 hash:
ace3aaf3102a7114a5d0c7927671db5054d73fad
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
SH256 hash:
5e5c8fe4e53980a98b48fe6b19155edf0f0d285ed899c61dbf4f880583ddf1d2
MD5 hash:
b3bbc5461d12f07ea893bf415dfe7c89
SHA1 hash:
40c3156c471d2afe3fd88c7d20cf93e5782e1bd6
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
SH256 hash:
e5518e76f14e87bcc58a705c6f8f3a686cbffefc0e55985d17a067adfddf3688
MD5 hash:
920a2854e9c183ad2ef7d5543c296d38
SHA1 hash:
2c20da753bdf6f1a46261e2c132dd42f75c94229
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
SH256 hash:
f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e
MD5 hash:
33b08a6f291d2d62ce11bc349ed3487d
SHA1 hash:
a06c3031d3098a51160179458f604b0382c26a16
Link:
https://www.unpac.me/results/62e80457-07a6-4563-a952-5bd7140a9319/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f877daae3261/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e

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:BitcoinAddress
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Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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 f877daae32612cf737745b22467c63f63e1961a6135289125dd228604fa0c29e

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2259322/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/384591/

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