MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments
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SHA256 hash: 690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719
SHA3-384 hash: 0e6c674fbe7edd0a475e4f782c1bb230e23c60f5bc4ad5e69a28079cde39d3d9ca4cfe2f85da1c32169aeba5d7f98ce2
SHA1 hash: c9ee314a02e1d0b19171b7c5a10bf3afff67b35f
MD5 hash: 81e2def0b86117a5399a0b11bb4837dd
humanhash: eight-river-emma-winter
File name:TC0931AC.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:615'424 bytes
First seen:2024-04-30 05:34:09 UTC
Last seen:2024-04-30 06:37:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:iiTB778QCQQ8O0FbtvspPnxn65aYeOUVNK9WDhOA9N54N02+4V29MjX:9B8QDzFIPnSlcK9WDhOMSabmj
Threatray 1'622 similar samples on MalwareBazaar
TLSH T10AD42319952C5335EDEF47FF4EA5CA4403B05193CE54D79F8EC830C86E6B7A082B6A62
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 4018f9e960e20464 (19 x AgentTesla, 6 x Formbook, 2 x PureLogsStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719.exe
Verdict:
Malicious activity
Analysis date:
2024-04-30 05:38:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/60c9399a-e077-4d0a-bed3-7aaec0cc657f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6630830951edb67852fb3e3a/reports/28447bd1-cb1d-45f9-805e-49f3b54ba790/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f8dbf58e-834f-4e43-bf2d-01925866f822
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1433838
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433838 Sample: TC0931AC.exe Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 46 www.fonquvw689.xyz 2->46 48 www.tehinaki.com 2->48 50 26 other IPs or domains 2->50 86 Snort IDS alert for network traffic 2->86 88 Found malware configuration 2->88 90 Malicious sample detected (through community Yara rule) 2->90 94 11 other signatures 2->94 11 TC0931AC.exe 4 2->11         started        14 chrome.exe 1 2->14         started        signatures3 92 Performs DNS queries to domains with low reputation 46->92 process4 dnsIp5 100 Adds a directory exclusion to Windows Defender 11->100 102 Tries to detect virtualization through RDTSC time measurements 11->102 104 Injects a PE file into a foreign processes 11->104 17 TC0931AC.exe 11->17         started        20 powershell.exe 23 11->20         started        64 192.168.2.6, 138, 443, 49698 unknown unknown 14->64 66 192.168.2.22 unknown unknown 14->66 68 4 other IPs or domains 14->68 22 chrome.exe 14->22         started        signatures6 process7 dnsIp8 70 Modifies the context of a thread in another process (thread injection) 17->70 72 Maps a DLL or memory area into another process 17->72 74 Sample uses process hollowing technique 17->74 76 Queues an APC in another process (thread injection) 17->76 25 explorer.exe 96 1 17->25 injected 78 Loading BitLocker PowerShell Module 20->78 29 WmiPrvSE.exe 20->29         started        31 conhost.exe 20->31         started        52 www.google.com 142.250.191.100, 443, 49708, 49720 GOOGLEUS United States 22->52 54 172.217.0.164, 443, 49726 GOOGLEUS United States 22->54 56 google.com 22->56 signatures9 process10 dnsIp11 58 www.boff.finance 103.42.108.46, 49732, 80 SYNERGYWHOLESALE-APSYNERGYWHOLESALEPTYLTDAU Australia 25->58 60 www.01fdh.us 91.195.240.123, 49728, 80 SEDO-ASDE Germany 25->60 62 6 other IPs or domains 25->62 96 System process connects to network (likely due to code injection or exploit) 25->96 98 Uses netsh to modify the Windows network and firewall settings 25->98 33 netsh.exe 25->33         started        signatures12 process13 signatures14 80 Modifies the context of a thread in another process (thread injection) 33->80 82 Maps a DLL or memory area into another process 33->82 84 Tries to detect virtualization through RDTSC time measurements 33->84 36 cmd.exe 1 33->36         started        38 chrome.exe 33->38 injected 40 chrome.exe 33->40 injected 42 3 other processes 33->42 process15 process16 44 conhost.exe 36->44         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719/
Threat name:
ByteCode-MSIL.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 04:03:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=neevlvnpo2ukvlbpjvyd6gblbmwufe45cpooq6btcordf3mue4mq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0a88a2e3cd7e300b0d55966ff1b19c3643739dd1bdeaada05f9e7f8841557202
Formbook
13e8e9cf97e4d1357797ef4253db3c784ef8dbf39725214f1b174991c0e1ae4d
Formbook
6465b2c5702a723c7229e33fdf38676e3b0e0049b5b632e2fe6e210713f6a7e7
Formbook
82c1419745039317e766c286be49ff600cf0e98c24545a2e62fc0cf57dabc255
Formbook
864b5669f18681ae03edbd7c3b3bbf6732e55191d4883f18783eb9c611fa9a17
Formbook
a951393c48c8b443dfb70fca4cadb74b4f4479ed081abb001fd28aa5ed56498c
Formbook
d0b94b855d2f24add1edf6b3a6ecae24e4366f181a1ccd0bcd3b27e94de95bc0
Formbook
db137d45302d270f6d692114436cc3990125d96421ed3cce4118cfa3d0a737c5
Formbook
e3c50af5dfca67fd9af9530c801ef172bde856241cf6b2c8596421b9a7ae8882
Formbook
+ 1'612 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:mx21 rat spyware stealer trojan
Link:
https://tria.ge/reports/240430-f91t6sdf74/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
bcfdd2a26e6bca034c1a81057347ebe901f00aa72bb708a8453488f9380ab7d1
MD5 hash:
608106b5fc6783cb99214cc860507ceb
SHA1 hash:
0a7bef67255d8a92918c43eeb785f3a21beb1ffe
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/2b774b86-fce4-4d98-9fab-ddb6a0954e13/
SH256 hash:
628fdadfc57cdcd1350dd2bb6a0fe9506f1f038d3254d4dc729cf4c17ac76884
MD5 hash:
32fea3e8e65c0456168103e86b6aa8a3
SHA1 hash:
f17c9d668d32e4d9f11f001004c46ca0eb4607fb
Link:
https://www.unpac.me/results/2b774b86-fce4-4d98-9fab-ddb6a0954e13/
SH256 hash:
e1c622628bd86d1d3e801afb5dee83b551d223f281e937e17529190d67c2e6ae
MD5 hash:
596ff23b412ac2abc3e5c178558eacfb
SHA1 hash:
8476916e82f85f77ff4cb066110d3a14a5da67ee
Link:
https://www.unpac.me/results/2b774b86-fce4-4d98-9fab-ddb6a0954e13/
SH256 hash:
8213a6a34c36db37675298dcbbbb36451ddf233c1af7e8783be225d3e4c08271
MD5 hash:
a2f5dafc17432fdea2f85c9c972167ca
SHA1 hash:
004139faa5268e3fd9fcc92710d0e331d32a2d7b
Link:
https://www.unpac.me/results/2b774b86-fce4-4d98-9fab-ddb6a0954e13/
SH256 hash:
690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719
MD5 hash:
81e2def0b86117a5399a0b11bb4837dd
SHA1 hash:
c9ee314a02e1d0b19171b7c5a10bf3afff67b35f
Link:
https://www.unpac.me/results/2b774b86-fce4-4d98-9fab-ddb6a0954e13/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/690955d5af76/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/690955d5af76a8aaac2f4d703f182b0b2d42939d13dce8783313a232ed942719

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: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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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