MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071
SHA3-384 hash: de891b4bac015edf360c5e9712c2d7349f1787258862a41802cf738a7548df0572fd00bd0cb2b94fc1d795790d961427
SHA1 hash: cb9ec866573b2f7aa74c99c31aacf3ada14b9978
MD5 hash: a596fe3be7b357ddee0df3f26c54d4e8
humanhash: colorado-march-sink-nuts
File name:rAlAdrakContractingBOQ-202421001-0241429142.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:18'432 bytes
First seen:2024-01-22 11:36:18 UTC
Last seen:2024-01-22 11:36:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 384:qXhQ2rPKX8og7wak9kqMX7gWP4uu7UJ5dRDU1O+kU:KKXIYMLgI4uC
Threatray 197 similar samples on MalwareBazaar
TLSH T1BB821805E3459B26E03673F59012952033379DA158A3EBC01DBC7E4A7AB374BCEA365E
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 9633239323076171 (1 x Formbook, 1 x StrelaStealer)
Reporter FXOLabs
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
317
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071.exe
Verdict:
Malicious activity
Analysis date:
2024-01-22 11:44:50 UTC
Tags:
formbook xloader
Link:
https://app.any.run/tasks/9d9d99be-ca34-43b7-9bde-30e3c2704744

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/472271/
Detection(s):
SecuriteInfo.com.Malware.PDB-1413.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Heuristic.HEUR.AGEN.1311791.5712.25793.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a window
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/65ae536287258803c23bb2fb/reports/2c1caf05-fcfe-4fe4-a56b-7217ff044284/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/026eb83b-c084-459d-af31-599ddefc4ccc
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1378678
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
Drops PE files to the startup folder
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1378678 Sample: rAlAdrakContractingBOQ-2024... Startdate: 22/01/2024 Architecture: WINDOWS Score: 100 32 s23.filetransfer.io 2->32 34 filetransfer.io 2->34 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 Antivirus detection for dropped file 2->44 46 7 other signatures 2->46 8 rAlAdrakContractingBOQ-202421001-0241429142.exe 15 3 2->8         started        12 rAlAdrakContractingBOQ-202421001-0241429142.exe 2 2->12         started        signatures3 process4 dnsIp5 36 filetransfer.io 104.21.13.139, 443, 49707, 49709 CLOUDFLARENETUS United States 8->36 38 s23.filetransfer.io 172.67.200.96, 443, 49708, 49713 CLOUDFLARENETUS United States 8->38 48 Bypasses PowerShell execution policy 8->48 14 powershell.exe 13 8->14         started        18 rAlAdrakContractingBOQ-202421001-0241429142.exe 8->18         started        20 rAlAdrakContractingBOQ-202421001-0241429142.exe 12->20         started        22 rAlAdrakContractingBOQ-202421001-0241429142.exe 12->22         started        signatures6 process7 file8 30 rAlAdrakContractin...1001-0241429142.exe, PE32 14->30 dropped 50 Drops PE files to the startup folder 14->50 52 Powershell drops PE file 14->52 24 conhost.exe 14->24         started        26 WerFault.exe 19 16 18->26         started        28 WerFault.exe 3 21 20->28         started        signatures9 process10
Score:
90%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2024-01-22 01:54:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=du53s47eyza2k5khl6hmaa5lbaocjfilno7oiuet4cjrs4digbyq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2e62724f7fa1529fe91a2ba1dfef01c4b4180bcd1b51e1a2c1e0f489ad416427
Formbook
4a34fe65ddd4931b016c6cdc7aee772f7184258c34ddbe04e71d374c7efddf04
Formbook
7f50e41f876ba8fcb2aba2ef12bc48a5378363a60d3b5dada11ffee027de9879
Formbook
878c2055975e65a5cb716bcad258e77ce3c1706f2824616a2ed2bbb2344fbec5
Formbook
9ab77e961ee2eaaee3da8d49b8f9f09444b279c6f258cf8e9769e4a16c22fbd4
Formbook
a4ad5a05b9140ab9fe748d59fcadfaec272b6b8eecad5bc1eb2f1d700e353e52
Formbook
b3a50f27f037fc524303604335c490550752f7eb426553a73b12b8ada3d2f892
Formbook
b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
Formbook
eca38ab8f3b089027841b1acd760b43e7697eef4dd347f76a175774bcb1b444a
Formbook
+ 187 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/240122-nq5m1sfff2/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Drops startup file
Unpacked files
SH256 hash:
1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071
MD5 hash:
a596fe3be7b357ddee0df3f26c54d4e8
SHA1 hash:
cb9ec866573b2f7aa74c99c31aacf3ada14b9978
Link:
https://www.unpac.me/results/2e206578-a488-43ef-9385-264590f4369a/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1d3bb973e4c6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071

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:MSIL_TinyDownloader_Generic
Create hunting rule
Author:albertzsigovits
Description:Detects small-sized dotNET downloaders
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 1d3bb973e4c641a575475f8ec003ab081c24950b6bbee45093e0931970683071

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/472271/

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