MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24. 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 2 File information Comments

SHA256 hash: af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24
SHA3-384 hash: 7371b0b27b11259dbe9fd637ebf59802be248d642eb36ca2ec908afb886a057e324b229f47572b3d3c0e8615e4ebbcf9
SHA1 hash: f28ceed24c993be45e10c94ca8c5daacf4cfbd39
MD5 hash: 14a8f6ba26cf2b9cd1a967a8d76fc19f
humanhash: whiskey-spaghetti-princess-equal
File name:#img001,002,003.pdf.exe
Download: download sample
Signature Formbook
File size:833'024 bytes
First seen:2023-06-18 12:24:34 UTC
Last seen:2023-07-06 14:10:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:hNryaa2iNx5LbzIu9+r9le1GIf/ju5E8ZPYv2sUZi1jOe2JRVk887TbCxd2gi:Ba1j5LA9nITu6rusUMFOemRVkvHuxEX
Threatray 2'907 similar samples on MalwareBazaar
TLSH T1F30512102AA9CB1AC87F0BF5815026318376636BF4B7D3170DC6B0EA1E62BD3555EB87
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)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
271
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
#img001,002,003.pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-06-18 12:25:17 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
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:
n/a
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 889866 Sample: #img001,002,003.pdf.exe Startdate: 18/06/2023 Architecture: WINDOWS Score: 96 37 Malicious sample detected (through community Yara rule) 2->37 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 3 other signatures 2->43 7 #img001,002,003.pdf.exe 7 2->7         started        11 jYbiDhL.exe 5 2->11         started        process3 file4 29 C:\Users\user\AppData\Roaming\jYbiDhL.exe, PE32 7->29 dropped 31 C:\Users\user\...\jYbiDhL.exe:Zone.Identifier, ASCII 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmp37D0.tmp, XML 7->33 dropped 35 C:\Users\user\...\#img001,002,003.pdf.exe.log, ASCII 7->35 dropped 45 Uses schtasks.exe or at.exe to add and modify task schedules 7->45 47 Adds a directory exclusion to Windows Defender 7->47 49 Injects a PE file into a foreign processes 7->49 13 powershell.exe 21 7->13         started        15 schtasks.exe 1 7->15         started        17 #img001,002,003.pdf.exe 7->17         started        51 Multi AV Scanner detection for dropped file 11->51 19 schtasks.exe 1 11->19         started        21 jYbiDhL.exe 11->21         started        signatures5 process6 process7 23 conhost.exe 13->23         started        25 conhost.exe 15->25         started        27 conhost.exe 19->27         started       
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-06-16 02:23:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
5412da69bdf73b8ac729f3ffbdd21c439216918cdfb50758cf65b623e575f207
MD5 hash:
2455e742a150d182b9d58e342ac8646b
SHA1 hash:
d082d9f4049222b8fe6ca034134e1c773ee267bb
SH256 hash:
52f358d201e81d3a0391cedd3042e2f957555b77aa49559f7fb810bbb7673ba1
MD5 hash:
c785ddc46141af772c75101d17c46a41
SHA1 hash:
e248723b6f60cc7607980d07172b64c33b2b2f15
SH256 hash:
5557868e2f069709f32fd4641530db2e2ffe6d8e663f518e7a7734e4f10f341c
MD5 hash:
e2a8b56f7d1a5e414afa38a018a181a0
SHA1 hash:
de0841f90a615dfe9ddc1a7995a4578870f04866
SH256 hash:
ebb7503c1ece5382469e9f0b894bf6a38f45f265229243709a4760ee3f2fb39a
MD5 hash:
f633b9ebb8f6cb95563f5d087f68829e
SHA1 hash:
ca3b1bcb86cbb6424595e13372c3326b7568ec6b
SH256 hash:
b86193f0f5eeadf451f23596dffb4d015245311c67bc15244c2b1c81293d3679
MD5 hash:
be09d1a9fbdc7fe4ad47e49a0ccf2a0e
SHA1 hash:
3eea7d856de59fefd670110c2edda63c319a5a1b
SH256 hash:
af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24
MD5 hash:
14a8f6ba26cf2b9cd1a967a8d76fc19f
SHA1 hash:
f28ceed24c993be45e10c94ca8c5daacf4cfbd39
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe af6413eb92d567e09e0b113917c35ee7f801a9d13467d0b15f79f022f2680a24

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments