MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf081d3cd1264716c4522f06c6e0294eaa9834c8a06f11d501780d065d7c0135. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments

SHA256 hash: bf081d3cd1264716c4522f06c6e0294eaa9834c8a06f11d501780d065d7c0135
SHA3-384 hash: 78fa6a2d4dc15b97c9e0cf00241acf6072362f08b7848cc0dabe7dacecbed70c97170a64989cd9c274d1346e2eb1baf2
SHA1 hash: 9933c13c7db40fb5ddce9013c42496e66d7a1b5e
MD5 hash: 1706365b5058cbaa560b23dc297f9585
humanhash: december-zebra-sierra-island
File name:SecuriteInfo.com.W32.AIDetectNet.01.1922.11328
Download: download sample
Signature Formbook
File size:25'088 bytes
First seen:2022-07-26 21:50:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 384:Yx+N+/LQO29SnpX1kf0X9xEFXRVrt/BeuDi1zmnFCZp9iVSwihWleoZ7w/MwTj:h8/5npXKc9MVrt/5i5mkPiPihWl9sL
TLSH T1A4B2BE01F3A855ABDF9A1AB27DBA13118279EB5608673F3F7941580E4E7378205B6B30
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon d4f0cc96d6ccf0c4 (1 x Formbook)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 673960 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 26/07/2022 Architecture: WINDOWS Score: 100 43 Multi AV Scanner detection for domain / URL 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 8 other signatures 2->49 10 SecuriteInfo.com.W32.AIDetectNet.01.1922.exe 15 7 2->10         started        process3 dnsIp4 41 sucon.ga 192.185.174.179, 49744, 80 UNIFIEDLAYER-AS-1US United States 10->41 33 C:\Users\user\AppData\Roaming\...\Zjveai.exe, PE32 10->33 dropped 35 C:\Users\user\...\Zjveai.exe:Zone.Identifier, ASCII 10->35 dropped 37 SecuriteInfo.com.W...Net.01.1922.exe.log, ASCII 10->37 dropped 59 Creates an undocumented autostart registry key 10->59 61 Encrypted powershell cmdline option found 10->61 63 Writes to foreign memory regions 10->63 65 2 other signatures 10->65 15 MSBuild.exe 10->15         started        18 powershell.exe 17 10->18         started        file5 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 2 other signatures 15->73 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 39 www.burleyqpersianscom.com 50.87.144.178, 49906, 80 UNIFIEDLAYER-AS-1US United States 20->39 51 System process connects to network (likely due to code injection or exploit) 20->51 26 wlanext.exe 20->26         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 26->53 55 Maps a DLL or memory area into another process 26->55 57 Tries to detect virtualization through RDTSC time measurements 26->57 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Threat name:
ByteCode-MSIL.Trojan.Generic
Status:
Suspicious
First seen:
2022-07-26 21:51:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
bf081d3cd1264716c4522f06c6e0294eaa9834c8a06f11d501780d065d7c0135
MD5 hash:
1706365b5058cbaa560b23dc297f9585
SHA1 hash:
9933c13c7db40fb5ddce9013c42496e66d7a1b5e
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.

Web download

Formbook

Executable exe bf081d3cd1264716c4522f06c6e0294eaa9834c8a06f11d501780d065d7c0135

(this sample)

  
Delivery method
Distributed via web download

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