MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267
SHA3-384 hash: 1babcad353a217ec17c21fb7326f49b1be6a2eabf40de085f8418786ecad605dfb54c96c375a4c821a9217a942f4dd9e
SHA1 hash: 7dda49868a0f070bf29f1fb5845af63c16d7b5ab
MD5 hash: e29356e57c24e80ea68f7e43b0984ad0
humanhash: virginia-uranus-chicken-emma
File name:TAHACO VINA CO.,LTD-Pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:608'768 bytes
First seen:2022-01-26 03:35:34 UTC
Last seen:Never
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:Mdsbh0dplnoewbQpoiLXcIeYU3bjVMcKOx4HJO9V24eo:MWh0dpln0chU9x4Ye4e
Threatray 12'253 similar samples on MalwareBazaar
TLSH T1A2D4CF9823FA5527F1BBBF34E878B1100A327C637CE6D26D028950CDC9B6B449E91767
File icon (PE):PE icon
dhash icon b2e18c0d8d8c8992 (4 x AgentTesla, 3 x Formbook, 2 x njrat)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
160
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TAHACO VINA CO.,LTD-Pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-01-26 03:51:03 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/1cdddb6b-92d2-45a2-aa42-c9771b6ff523

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/222981/
Detection(s):
SecuriteInfo.com.PUA.EmbeddedEXE-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cmd.exe control.exe finger.exe hacktool obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/61f0c1a6d73ca9d4648aecdf/reports/d0a132ce-389d-4dbb-bcc7-9cd696451813/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1a1d709d-f3a1-4e10-87e3-33c3f88631ac
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/927579
Signature
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 560053 Sample: TAHACO VINA CO.,LTD-Pdf.exe Startdate: 26/01/2022 Architecture: WINDOWS Score: 100 47 www.3scy.com 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 14 other signatures 2->55 11 TAHACO VINA CO.,LTD-Pdf.exe 7 2->11         started        signatures3 process4 file5 39 C:\Users\user\AppData\...behaviorgraphOzUDdqUeQKBT.exe, PE32 11->39 dropped 41 C:\...behaviorgraphOzUDdqUeQKBT.exe:Zone.Identifier, ASCII 11->41 dropped 43 C:\Users\user\AppData\Local\Temp\tmp73A.tmp, XML 11->43 dropped 45 C:\Users\...\TAHACO VINA CO.,LTD-Pdf.exe.log, ASCII 11->45 dropped 57 Adds a directory exclusion to Windows Defender 11->57 59 Injects a PE file into a foreign processes 11->59 15 TAHACO VINA CO.,LTD-Pdf.exe 11->15         started        18 powershell.exe 21 11->18         started        20 schtasks.exe 1 11->20         started        22 TAHACO VINA CO.,LTD-Pdf.exe 11->22         started        signatures6 process7 signatures8 69 Modifies the context of a thread in another process (thread injection) 15->69 71 Maps a DLL or memory area into another process 15->71 73 Sample uses process hollowing technique 15->73 75 Queues an APC in another process (thread injection) 15->75 24 explorer.exe 15->24 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 process10 30 control.exe 24->30         started        signatures11 61 Self deletion via cmd delete 30->61 63 Modifies the context of a thread in another process (thread injection) 30->63 65 Maps a DLL or memory area into another process 30->65 67 Tries to detect virtualization through RDTSC time measurements 30->67 33 cmd.exe 1 30->33         started        35 explorer.exe 1 157 30->35         started        process12 process13 37 conhost.exe 33->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-26 01:56:48 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2u4nndg5vqtbbo5gzfszk253dtbnwhestj2ekguxyootwujyyjtq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
10aa7088156f972d7f44c8183c9b26c4ca290e5e1b92b59585a91b9946fb73e2
Formbook
1c3f48c41ff949d4c6b27d671146abb3f13be640843027a5ec33177bca81aef6
Formbook
6403d40c99b5036c9410e11c11872bdceb1955da70a17bdb979cac381d09cc74
Formbook
711f3855c0fe6398f1fdb5a870de829c005b60cd4c90bd8ecae5780b9427716f
Formbook
86d9f290badc30732592c1af4705f3dedb1516cf25a4ec01a44b64fad834c718
Formbook
942196f0ca8e1253e7dd381b1855e4b56b8874a2d5def9d472507ddaf306ac86
Formbook
a3c1b0817789d0b691bcbfa175958d2b24ad98020ba776c11aadde1d89a964ba
Formbook
b63c82c7ada645bc96da74ebd031970c0ee2e7a568c2929181c146144682b2c3
Formbook
cd3932d4db9fcac1b45dec936ab8e2b4e0fa3f5fc58abf418887962931000807
Formbook
+ 12'243 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:m17y rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220126-d5x7daegel/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
ab470fd714fc34133c14152b089ccf3ab67b30bd4b4b2f43641988dae8024d3c
MD5 hash:
4d770b2150ee0e4b34444f7c96e8f33c
SHA1 hash:
1cec212039c7d3758cf562ec504927da36ace1b9
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e8f5cd38-8854-4ad5-a43a-8a2e00fe4c9d/
Parent samples :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 hash:
5247926388ed51a1178cb1de85bc5df1443c240ace43d7d9386edf8d7fceec02
MD5 hash:
9a6cb543f17cc6f61c016dbc8a331bc2
SHA1 hash:
62210e9d0f4d5b8101886a336feb3e1ae0eaf824
Link:
https://www.unpac.me/results/e8f5cd38-8854-4ad5-a43a-8a2e00fe4c9d/
SH256 hash:
306398ad8e9166de5bfa5da81f053ab1c5d987f5ee2699faebda87d61d987f0d
MD5 hash:
873f273241a6ec5eb185964d20654d80
SHA1 hash:
371540a246b265d2106d70a0e6bc60d5c7239333
Link:
https://www.unpac.me/results/e8f5cd38-8854-4ad5-a43a-8a2e00fe4c9d/
SH256 hash:
d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267
MD5 hash:
e29356e57c24e80ea68f7e43b0984ad0
SHA1 hash:
7dda49868a0f070bf29f1fb5845af63c16d7b5ab
Link:
https://www.unpac.me/results/e8f5cd38-8854-4ad5-a43a-8a2e00fe4c9d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/d538d68cddac/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/d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267

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
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 d538d68cddac2610bba6c965956bbb1cc2db1c929a74451a97c39d3b5138c267

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/222981/

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