MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8155c967977dee334ccd8751bb30dbe3e2a134c387ac6d7e48ba5043e07441df. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8155c967977dee334ccd8751bb30dbe3e2a134c387ac6d7e48ba5043e07441df
SHA3-384 hash: a2b9e8a021a2fd7a3f8827dac29f29b7f896f0da68f9a50ceaaa7afa4f78128da2c8a6affa7540b4c9ca3b1e081e30a5
SHA1 hash: f537eb6a4a0d572640e7a3da8d1c3fdc9b42cd27
MD5 hash: 7153dd1a182070ba494c1533ae26b185
humanhash: fourteen-two-mirror-venus
File name:scan2344321.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:303'104 bytes
First seen:2020-06-11 09:34:00 UTC
Last seen:2020-06-11 10:44:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:2n/vqGxp+j+Gyuy7xu6I3ZcRa1KzREUXuWx76:OiGxGed7LIcKKNEZWU
Threatray 5'390 similar samples on MalwareBazaar
TLSH 6D54124466E4D366D92D17F684B2415163B0FA237A63EB8F4EC132DB2573BCC8622727
Reporter abuse_ch
Tags:ESP exe FormBook geo Santander


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: cofradias.altia.es
Sending IP: 176.58.12.79
From: Factoring y Confirming - Grupo Santander <fycuot@gruposantander.com>
Subject: Confirming - Aviso de pago
Attachment: 2343234565432_pdf.gz (contains "scan2344321.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/8983/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.42048.7556.18557.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-11 09:37:44 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qfk4sz4xpxxdgtgnq5i3wmg34prkcngdq6wg27sixjiehyduihpq._file
Verdict:
malicious
Similar samples:
172842029f8937753e79843e36fcb4715c0f3a9de4b256585847df48caf8e10f
FormBook
27cbd2139f326adf45adefa425f7295af578ac5d9ecceab36da74c5af53def1f
FormBook
2a093b2213d7d589020d69e76fdfd33b441ed125664cb3247d25e9103744011c
FormBook
3e98d7f59e495ddfa5140a50f70347bb4a56296ca2dcb6602f65ebb4e4a0373b
FormBook
45024576e848c50c9199cbfe61462e11551ec6ce99cb7ca39ae929dc77aa348f
FormBook
4a6187dd467be22cbd3eab6807d368c37535c488af22442498423da8124f35fa
FormBook
5ea463243b051351c219469515fb9b39d01c5c3c4f4698bd6164e36070622d35
FormBook
6023812166224ffe7f3ff3efacddccd27c4ae1f09aa2dc9e2f5c8557d6bb4382
FormBook
9bf2e6afa0656c8129746c95784146ba85f15ecf46081644192e5bbfd5899144
FormBook
c3eee37f03d307023521890718302eb2f9ba7d4ec465a1f10c7e9d408ceddc3b
FormBook
+ 5'380 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-y1nkzs933n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
rezer0
Formbook
Malware Config
C2 Extraction:
http://www.spatren.com/sr2/
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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

FormBook

gz f9f807d93940c83755b576e5ca2c7d971453cc6cf3bd855c8a2f6062a7c44200

FormBook

Executable exe 8155c967977dee334ccd8751bb30dbe3e2a134c387ac6d7e48ba5043e07441df

(this sample)

  
Dropped by
MD5 d7d4dde2f0ace0add56faea16ae40f05
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 f9f807d93940c83755b576e5ca2c7d971453cc6cf3bd855c8a2f6062a7c44200
Cape
Cape
https://www.capesandbox.com/analysis/8983/

Comments