MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac8087b133a1022287bb8aad082e1fd0b669509289a5ef5f2e17714de7acfb5b. 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: 6


Intelligence 6 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac8087b133a1022287bb8aad082e1fd0b669509289a5ef5f2e17714de7acfb5b
SHA3-384 hash: 30725101ae57d66151a2d95ec578be3072da1f8487a91ac2f6a2379f489f69feaa25611e140d200e19351e23b1c047e7
SHA1 hash: 58060b2ab7c2441aeb29a034c48fc190c9789281
MD5 hash: c66f665b6e12b556e6c90b52af988edc
humanhash: oscar-west-maine-video
File name:vbc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:454'656 bytes
First seen:2020-06-30 06:47:51 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 6144:RoKS5+HFnqBs8fgm/W/uHzg1TtQ/VMIRXLlHqS5mBXPW13HQ3v:qeFnqBscg/IMtQ9MIJLl3yXPW13HQ3
Threatray 5'085 similar samples on MalwareBazaar
TLSH A8A43A277D41F12CC0165A3380EE1D56A37569E12333C70FAB4F67A85E4529B7E2A22F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: slot0.winnwinnllc.ga
Sending IP: 68.183.98.32
From: "Maersk Line " <info@winnwinnllc.ga>
Subject: Scan Bill of Lading
Attachment: Scan Bill of Lading.xlsm

FormBook payload uRL:
https://kyivremont.com/vbc.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/16841/
Detection(s):
SecuriteInfo.com.Formbook.28358.14663.UNOFFICIAL
Create hunting rule

Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ac8087b133a1022287bb8aad082e1fd0b669509289a5ef5f2e17714de7acfb5b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-30 06:49:03 UTC
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vsaipmjtuebcfb53rkwqqlq72c3gsuesrgs66xzoc5yu3z5m7nnq._file
Verdict:
malicious
Similar samples:
0a7d5823b1118282b44e5c19cfb4ba4c553c89846e086001fa32f07554bc92fc
Formbook
3d8ff1b4492a541b44c03733b090c73fd992535d8c4e867abc0e6aeaf5b58b30
Formbook
3f20a9d15153246f78e014a994fa4ffabe19a79bc27a4dca89f18a52b99b2d4a
Formbook
4fd6cfb4c08338e8b3a6ec64118aa6ad90350e865e90365b5b700aa41908b984
Formbook
590fde182a154cd89b15d88546d60351b9fecb51e04fbbf4affd8d49a618bd23
Formbook
5e5d88343393a5a1f98a66c8e5967023e200dcf3be81bc0a3c210396156d0fea
Formbook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
Formbook
9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8
Formbook
b25e43fe3f6068eb13b79f8900dea897533005aee7e2139e6676b7cdc92cc588
Formbook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
Formbook
+ 5'075 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion trojan persistence spyware
Link:
https://tria.ge/reports/200630-nypwphzh9s/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Modifies Internet Explorer settings
Suspicious use of SendNotifyMessage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run entry to start application
Loads dropped DLL
Uses the VBS compiler for execution
Reads user/profile data of web browsers
Executes dropped EXE
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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

Excel file xlsm f4dcd21a2e0b2f4432b665157a1f934e5063be6bbf7ef5f92b365bbbeca92331

Formbook

Executable exe ac8087b133a1022287bb8aad082e1fd0b669509289a5ef5f2e17714de7acfb5b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/404554/
  
Dropped by
MD5 937aa5650aa985dd443f4a03156967c9
  
Dropped by
SHA256 f4dcd21a2e0b2f4432b665157a1f934e5063be6bbf7ef5f92b365bbbeca92331
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/16841/

Comments