MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d6aed04de942b7577c3accd91e7b2e822f3e9ae3f44bb2c62d3f8332e7bb9bf. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments

SHA256 hash: 4d6aed04de942b7577c3accd91e7b2e822f3e9ae3f44bb2c62d3f8332e7bb9bf
SHA3-384 hash: e8eda2a45f627624c5bac3db598f833b45de91d8e53d020d724331177190b427f6c01ce1bb2f1d8e74ac41be2507cf3e
SHA1 hash: 4672ae6d49334d3bb80f1fc45816648241ae6cd2
MD5 hash: 0d40d12e558369cb5f5181e15578a1fe
humanhash: ten-wolfram-lion-cold
File name:4d6aed04de942b7577c3accd91e7b2e822f3e9ae3f44bb2c62d3f8332e7bb9bf
Download: download sample
Signature Formbook
File size:871'936 bytes
First seen:2023-01-06 12:34:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:NdX2iNju3x2cHss/S+PPaHENNxExSYdKyjRa19UY085aNmqq:Nx1Vu3x2cHs6Sq++czdRjo5Fk
TLSH T120059E8936F29037F6DB02301735BACC0D726A43797AF11A5A773BA491319FF7A94212
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
183
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
4d6aed04de942b7577c3accd91e7b2e822f3e9ae3f44bb2c62d3f8332e7bb9bf
Verdict:
Malicious activity
Analysis date:
2023-01-06 12:35:50 UTC
Tags:
formbook xloader

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

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
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:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 779018 Sample: TIrWcG0PJK.exe Startdate: 06/01/2023 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for URL or domain 2->62 64 Sigma detected: Scheduled temp file as task from temp location 2->64 66 8 other signatures 2->66 10 TIrWcG0PJK.exe 7 2->10         started        14 dHBJRZCI.exe 5 2->14         started        process3 file4 44 C:\Users\user\AppData\Roaming\dHBJRZCI.exe, PE32 10->44 dropped 46 C:\Users\...\dHBJRZCI.exe:Zone.Identifier, ASCII 10->46 dropped 48 C:\Users\user\AppData\Local\...\tmpB064.tmp, XML 10->48 dropped 50 C:\Users\user\AppData\...\TIrWcG0PJK.exe.log, ASCII 10->50 dropped 74 Uses schtasks.exe or at.exe to add and modify task schedules 10->74 76 Adds a directory exclusion to Windows Defender 10->76 16 RegSvcs.exe 10->16         started        19 powershell.exe 20 10->19         started        21 schtasks.exe 1 10->21         started        78 Multi AV Scanner detection for dropped file 14->78 80 Machine Learning detection for dropped file 14->80 23 RegSvcs.exe 14->23         started        25 schtasks.exe 1 14->25         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 16->52 54 Maps a DLL or memory area into another process 16->54 56 Sample uses process hollowing technique 16->56 58 2 other signatures 16->58 27 explorer.exe 16->27 injected 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        process8 process9 35 colorcpl.exe 27->35         started        38 cmd.exe 27->38         started        signatures10 68 Modifies the context of a thread in another process (thread injection) 35->68 70 Maps a DLL or memory area into another process 35->70 72 Tries to detect virtualization through RDTSC time measurements 35->72 40 cmd.exe 1 35->40         started        process11 process12 42 conhost.exe 40->42         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-12-19 13:47:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:d0a7 rat spyware stealer trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
8892eba2280a5329f01601f05660f2cf6378b26079c711918122e6254f56053e
MD5 hash:
95b0147ddcfb4c39c926719904d486b8
SHA1 hash:
8b29c6db7eefc6fc2bff55348d17c1ce98582c49
Detections:
FormBook win_formbook_auto win_formbook_g0
SH256 hash:
22a99e2740dcb5fcab542cb6ee33472a01b8f226f76e031e31b9f00ca1b08b8c
MD5 hash:
bb7995fc982c684be3ddc978e7853bca
SHA1 hash:
b5b9064f2f4ca6b8fa9646700d0bb7d0e0acbd55
SH256 hash:
fbe32753c4eee830d60a3aec6fb04cab1fb7c2ece3d276d1860a906328773904
MD5 hash:
5e92aac89b8290933fe7a819f11bff22
SHA1 hash:
5569d0845c0d8376f78568cd3050e8c586fa65b4
SH256 hash:
5b797b2b16d9d6f356b94c0524ef715c6345fda8aa87fb454908e111ad6dac13
MD5 hash:
a993e75da6c217ca0da3b1944bcaf68a
SHA1 hash:
197b139198396651c743d18617a625b895129428
SH256 hash:
45ddf3392d23dbb4530497e3b1906be0e8414ee7ef1dbd1ad9385d13f11cfab6
MD5 hash:
2b53c4b8dec46acc57613eb4752ed9c6
SHA1 hash:
0f91704be97c0e87da6d061d4b15e1ddec1d8e55
SH256 hash:
4d6aed04de942b7577c3accd91e7b2e822f3e9ae3f44bb2c62d3f8332e7bb9bf
MD5 hash:
0d40d12e558369cb5f5181e15578a1fe
SHA1 hash:
4672ae6d49334d3bb80f1fc45816648241ae6cd2
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.

Comments