MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ef912ba8f9cfbe827295f923edc2e3b11e0bb061070f1b75b3d5e1e59d1e8eb. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4ef912ba8f9cfbe827295f923edc2e3b11e0bb061070f1b75b3d5e1e59d1e8eb
SHA3-384 hash: be3eaa4ee15da6857275b1ff5d368b9f62b0de2bb5e225ff0f82e66a231a5c49bb40f7a3ecd92abd5c600eb06f725569
SHA1 hash: d0c2635d509aa173129179e8346dec0e16db1863
MD5 hash: 48403eec26a42d2e2d053de67df6e493
humanhash: carbon-don-jig-pasta
File name:NOW PO n08765456789093.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:312'320 bytes
First seen:2020-06-30 07:19:50 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:lXpvMInqsmmLD+MNHaJGtSpjKWO8+hfnLFXBybWiSI/d7PQxAWOYw:lXpvMInqsLDjaEttswLR4S2BQxAWOYw
Threatray 5'111 similar samples on MalwareBazaar
TLSH 3564F136A3B9CF64EAB99BB560F154200FB17E1B2531E26D6DC064CE1977B0083A1F67
Reporter jarumlus
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/16880/
Detection(s):
SecuriteInfo.com.Generic-EXE.UNOFFICIAL
Create hunting rule

Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4ef912ba8f9cfbe827295f923edc2e3b11e0bb061070f1b75b3d5e1e59d1e8eb/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2020-06-30 07:20:07 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=j34rfouptt56qjzjl6jd5xbohmi6boygcbypdn23hvpb4wor5dvq._file
Verdict:
malicious
Similar samples:
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
Formbook
5620eaea502dcc3bc31e10dc48478022f518a15956a4b6565c454dd062859eff
Formbook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
Formbook
6f95416c1006a499c7012c6cde49a27f83223c665cf9b28764030afeb04bf697
Formbook
a46eb9ad512b0b9355c24ab2320a1cd25758bc5e90485a476596982d41f9fe56
Formbook
af076d38fb1a0fe805a6a835aefa72a1eaa827bb0421dcc91bd2e6153469d60d
Formbook
b97bfa891b722322095fcbd10be1c232066827749e4f5dc945beacf1a84d1658
Formbook
c63e2af7f161a564776dd540773f8e7c8581e93318bf6e2d0e065f7df45de3fb
Formbook
dd6ab0ee0989e19bb410f9829d8c325d88a4c339c2d088635804423df20567d9
Formbook
e13acda03eb4829793beb5c0664d5752663b7ef5ae72b63724e7eaf189a9fec4
Formbook
+ 5'101 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200630-dn8ypt74te/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Modifies Internet Explorer settings
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run entry to start application
Reads user/profile data of web browsers
Deletes itself
Formbook
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

r09 5be42919dfb437cf7e10d6d5a2c04888fbf122ffb49176529de77dbbaf51a845

Formbook

Executable exe 4ef912ba8f9cfbe827295f923edc2e3b11e0bb061070f1b75b3d5e1e59d1e8eb

(this sample)

  
Dropped by
MD5 872cc0d933df0c9b71db6820c60bff79
  
Dropped by
SHA256 5be42919dfb437cf7e10d6d5a2c04888fbf122ffb49176529de77dbbaf51a845
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/16880/

Comments