MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9242b1d497cf232d201183851b93b19046929e39e5e512b87ea42f616d0784a4. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments

SHA256 hash: 9242b1d497cf232d201183851b93b19046929e39e5e512b87ea42f616d0784a4
SHA3-384 hash: bb6219909e2eec9280c075a17a02bc11c412db08a9e96ac4d9ae74db5ba43295082f0f70317ae23136d5a76a37c7c903
SHA1 hash: 0946646c6c1e28d9c5e48636be2c9be24866ba41
MD5 hash: fe889bf209a5e139d07c128c6d0ba877
humanhash: twenty-north-tango-thirteen
File name:file
Download: download sample
Signature Formbook
File size:463'360 bytes
First seen:2023-04-24 16:02:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:2qDlPCJE7I2SCQv4M/2O1DV9SA9Nayp6kZJ4PnXnaQQvMMMMMM1MMMMMIG:1S39iuYXn1Q7G
Threatray 3'226 similar samples on MalwareBazaar
TLSH T199A4D57C6467B503CA98973D202A897306E6EF4C79B3C70D3BE1B4699FB36805AB4315
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)
File icon (PE):PE icon
dhash icon 8ecccccccccccccc (1 x Formbook)
Reporter jstrosch
Tags:.NET exe FormBook MSIL

Intelligence


File Origin
# of uploads :
1
# of downloads :
291
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-04-24 16:05:29 UTC
Tags:
opendir

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

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Creating a window
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 853123 Sample: file.exe Startdate: 24/04/2023 Architecture: WINDOWS Score: 100 43 Snort IDS alert for network traffic 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 5 other signatures 2->49 10 file.exe 15 6 2->10         started        process3 dnsIp4 41 172.245.214.178, 49685, 80 AS-COLOCROSSINGUS United States 10->41 31 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->31 dropped 33 C:\Users\user\AppData\Roaming\...\Bcrck.exe, PE32 10->33 dropped 59 Creates an undocumented autostart registry key 10->59 61 Writes to foreign memory regions 10->61 63 Injects a PE file into a foreign processes 10->63 15 MSBuild.exe 10->15         started        18 MSBuild.exe 10->18         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 3 1 15->20 injected 73 Tries to detect virtualization through RDTSC time measurements 18->73 process9 dnsIp10 35 aspiresoothe.com 15.197.142.173, 49689, 80 TANDEMUS United States 20->35 37 fwd3.hosts.co.uk 85.233.160.23, 49691, 80 ISIONUKNamescoLimitedGB United Kingdom 20->37 39 11 other IPs or domains 20->39 51 System process connects to network (likely due to code injection or exploit) 20->51 24 cmmon32.exe 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2023-04-24 16:03:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:my28 rat spyware stealer trojan
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
9242b1d497cf232d201183851b93b19046929e39e5e512b87ea42f616d0784a4
MD5 hash:
fe889bf209a5e139d07c128c6d0ba877
SHA1 hash:
0946646c6c1e28d9c5e48636be2c9be24866ba41
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:azov_Dropped
Author:Potatech
Description:Azov Detection
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Trojan_Formbook
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Author:Elastic Security
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_w0
Author:@malgamy12

File information


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

Web download

Formbook

Executable exe 9242b1d497cf232d201183851b93b19046929e39e5e512b87ea42f616d0784a4

(this sample)

  
Delivery method
Distributed via web download

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