MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0
SHA3-384 hash: 4eb084182791e80d30ccc7f8428afb5a51c85ce5df7af56057043a3bfcf6965c866eb9d0497571a2067a8a881383a455
SHA1 hash: 21494b4dba776069182cee8d4212bcb569af703d
MD5 hash: 0d63a2343a263e0743fc308ebe05401f
humanhash: fruit-eight-asparagus-batman
File name:PO-5277-22-TRUTINTL-PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:797'696 bytes
First seen:2022-06-27 09:34:56 UTC
Last seen:2022-06-27 11:19:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:CbZsdLPr4zCm9+MgsAzjBYBWpR6VdcWOWILPdhwQPaZThUAa9hS3FH3LCFoWoIEe:mGdLP86DYApW8z
TLSH T1B60527AC320D31EFCDABC575DA280C58EAA4387F971781077167219E9A4CB87EE151F2
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/283521/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62b97a0b1fcdba4e1a5f4bcd/reports/b39fe5e8-24d7-4e33-aed1-d99c5fbe2655/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/92513a3a-e849-4bf5-a26d-011b36de000c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1020302
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 652806 Sample: PO-5277-22-TRUTINTL-PDF.exe Startdate: 27/06/2022 Architecture: WINDOWS Score: 100 30 www.torontoandcasino.space 2->30 32 www.sharpmind.site 2->32 34 parking.bodis.com 2->34 38 Snort IDS alert for network traffic 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 6 other signatures 2->44 11 PO-5277-22-TRUTINTL-PDF.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\...\PO-5277-22-TRUTINTL-PDF.exe.log, ASCII 11->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 11->52 54 Injects a PE file into a foreign processes 11->54 15 PO-5277-22-TRUTINTL-PDF.exe 11->15         started        signatures6 process7 signatures8 56 Modifies the context of a thread in another process (thread injection) 15->56 58 Maps a DLL or memory area into another process 15->58 60 Sample uses process hollowing technique 15->60 62 Queues an APC in another process (thread injection) 15->62 18 explorer.exe 15->18 injected process9 signatures10 36 Uses ipconfig to lookup or modify the Windows network settings 18->36 21 ipconfig.exe 18->21         started        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/4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-06-23 11:53:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j5xjc3hbpmwdxta2b7iym27bh4vifcp5yj5l3uxvyrtziwcngxya._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sy37 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220627-lkbrmsabdr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
suricata: ET MALWARE FormBook CnC Checkin (GET)
Formbook
Unpacked files
SH256 hash:
13d09d15df89e9345ed4cdaf8b19e42de41a95dc0007ae755812d0a5e520cf96
MD5 hash:
02b60c2b4edb45572d6233208fee9a6c
SHA1 hash:
1cd9111a023f090b4178e8ad4a0c6ca900f27c5b
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/e1a89b66-1622-4c32-85f0-77a91d4cb449/
Parent samples :
288c4905fb7d867232c6bf1186db4de45215f9772db601dfd83947b121a01987
4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0
SH256 hash:
edef65ab452acf0e2b861b1a488c0327359963ea5bf4088c4f2227129e8ff423
MD5 hash:
c8ee0cbf74d7cb3c9d72b6610988a103
SHA1 hash:
5e44a0e1297ea6a5746d10117595cb2d3687e02f
Link:
https://www.unpac.me/results/e1a89b66-1622-4c32-85f0-77a91d4cb449/
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
Link:
https://www.unpac.me/results/e1a89b66-1622-4c32-85f0-77a91d4cb449/
SH256 hash:
4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0
MD5 hash:
0d63a2343a263e0743fc308ebe05401f
SHA1 hash:
21494b4dba776069182cee8d4212bcb569af703d
Link:
https://www.unpac.me/results/e1a89b66-1622-4c32-85f0-77a91d4cb449/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.71
Link:
https://yomi.yoroi.company/submissions/4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 4f6e916ce17b2c3bcc1a0fd1866be13f2a8289fdc27abdd2f5c46794584d35f0

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/283521/

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