MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 831d3f64936f8082983b92c219976473a0cebca333b3d8af053bb1bc8de3fe57. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 831d3f64936f8082983b92c219976473a0cebca333b3d8af053bb1bc8de3fe57
SHA3-384 hash: 3209d020e519a16458ca7e675a98058d47beb3cf584620f083a62bdbc71071db462e98def89ac8f679abb5a21a34a5e7
SHA1 hash: 598a882c7e8dc7f6dccefe8b410c2d69d319bad5
MD5 hash: 9d67d97cb007954c79ab3c056d52c42e
humanhash: eight-jig-massachusetts-white
File name:A9vUuM7VDleYNJ9.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:423'424 bytes
First seen:2020-07-04 07:07:35 UTC
Last seen:2020-07-04 08:07:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:JE7WM+QsKwsIkRrLOuuDHKWzh+Ui7DEvqWL98n352iL1Zl6xH2KzhOhuwPRd0Xrh:JfxH3zoPRQze1J0pnMS6TyOMDHWig
Threatray 5'137 similar samples on MalwareBazaar
TLSH 1D948C91F2944A85D57E63F59923841807F7BD2AA1B0E30C0DDB76EA07B37824693F1B
Reporter abuse_ch
Tags:exe FormBook Yahoo


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: sonic317-27.consmr.mail.bf2.yahoo.com
Sending IP: 74.6.129.82
From: Jean Koneh <jean.koneh@ymail.com>
Subject: : Fwd: Wire Transfer Payment
Attachment: Pay in Dco1.rar (contains "A9vUuM7VDleYNJ9.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/18797/
Detection(s):
SecuriteInfo.com.MSIL.GenKryptik.ENOW.22067.UNOFFICIAL
Create hunting rule

Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/831d3f64936f8082983b92c219976473a0cebca333b3d8af053bb1bc8de3fe57/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-04 05:21:35 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qmot6zetn6aifgb3slbbtf3eooqm5pfdgoz5rlyfhoy3zdpd7zlq._file
Verdict:
malicious
Similar samples:
09deca3cd49dfc722245ed9c7157b0f6ab05580e9a2fd48a0832376548784c8a
FormBook
3bd12baef994051710772b1f9400c8b6f04163ebafc9edc9de5bd9b15297c61d
FormBook
6748690a2f2b4b6d137354eb13d5d86eb83867a372819c2377ac0f92975588e8
FormBook
7f41f48a7e8e4e0e5a1a718cee1e04a2eed7600bca5f44f87221b82ee0ce6aa8
FormBook
ab7af6134b5318adf07e505548873766326ddd9cb6ac89804c2e8924bceb8ec0
FormBook
bbb434180f465363ccad24124ff5a3f326d994952fe1146c8d7b7a32bf3319f3
FormBook
c70115af42fcb154ccb1e348ee9a233e46ea70c6c7ac589bdeeb9e6cf47a7f79
FormBook
cf9ad825f52e8a1af6104737421de123b3ebe44d62a51c340d69fd1d85d9d0b2
FormBook
d04d90f7bcdc49c192a42ed8a0c25fb4c0549d21ba633917d8f6a84d70b52d35
FormBook
ebfc6d0bbfc1a7551f073d7ca017595f87f866b6632d4b405522a6a2c2ac4d4d
FormBook
+ 5'127 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
spyware persistence
Link:
https://tria.ge/reports/200704-jq5amteh52/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious behavior: MapViewOfSection
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Enumerates system info in registry
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Deletes itself
Reads user/profile data of web browsers
Adds Run entry to policy start application
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
Rule name:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Malspam

FormBook

rar 854f99b301465510a31602931c9c2ac77ea04fd2780b65d10fe360becec5c607

FormBook

Executable exe 831d3f64936f8082983b92c219976473a0cebca333b3d8af053bb1bc8de3fe57

(this sample)

  
Dropped by
MD5 08c002e1b80adaa518b4c217cf73e5dd
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 854f99b301465510a31602931c9c2ac77ea04fd2780b65d10fe360becec5c607
Cape
Cape
https://www.capesandbox.com/analysis/18797/

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