MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5749af95d51ba8e5d08b5724c8806a4e9fdd137ad4424ca2dd6f025a2662b421. 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: 8


Intelligence 8 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5749af95d51ba8e5d08b5724c8806a4e9fdd137ad4424ca2dd6f025a2662b421
SHA3-384 hash: 5f14ab476c5d4f7833b9fca881cddbd3b1a0eb64ade18faa8658512552a8037ead300ede199da9ef2fa928ff49fcc30a
SHA1 hash: 5492172488c392f929acb9b7cd775f940841eff0
MD5 hash: 6ee086f9280e9b6dd55baeb5d247b8fc
humanhash: oregon-fillet-georgia-eight
File name:Memorandum.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:670'208 bytes
First seen:2020-07-09 14:26:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash c6558f8c55c7046860294c7f6ce6c298 (14 x AgentTesla, 5 x FormBook, 3 x Loki)
ssdeep 12288:6k7Yi4Xj/tQBWi/y67k86oxVOwBbyPxzG5aQHmV6hE3M:X14/oDnsUgkWI5bmUEc
Threatray 5'346 similar samples on MalwareBazaar
TLSH 22E4AE22E2EC44F3F16316398D5BC77C583ABE103E695A473BE55D4C9E3828138662B7
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: box.restrandy.xyz
Sending IP: 67.205.168.118
From: Racheal Morgan <info@apexestateagents.co.uk>
Reply-To: Racheal Morgan <conveyancing@bryant-solicitors.co.uk>
Subject: Re: Updated Memorandum of Sale
Attachment: Memorandum.img (contains "Memorandum.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/23902/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.Win32.Herz.B.6016.5488.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Reading critical registry keys
DNS request
Sending an HTTP GET request
Setting browser functions hooks
Possible injection to a system process
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5749af95d51ba8e5d08b5724c8806a4e9fdd137ad4424ca2dd6f025a2662b421/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-07-09 14:28:09 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k5e27fovdouoluelk4smradkj2p52e322rbeziw5n4bfujtcwqqq._file
Verdict:
malicious
Label(s):
netwirerc
Create hunting rule
Similar samples:
3beb95c4f83e5f7d1af897311a6cd1d8abfb04c656ca73d7f4c8db6ad6e5d150
FormBook
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
FormBook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
FormBook
aea480ebd5777e840f0b988267554fe1d35f70238bed009231b24475fdc0b0d9
FormBook
b00ebd12d239ba9f75f11b3ad96b127730779e48f3e2fead50c9e5a7b7ca598a
FormBook
b042e4bdfe19df2aa474fd5e2294aecc9a07d447c96466db7a7e20316d885634
FormBook
b57c9384280389b262d09cb4fa5b5465aadd4aaba2afb6d48c5d6e7c3f8d923e
FormBook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
FormBook
def5dbf8e48af782ccb741ff6a1e1357af8dcafb701089b7f2d1c0919ae79f05
FormBook
e13acda03eb4829793beb5c0664d5752663b7ef5ae72b63724e7eaf189a9fec4
FormBook
+ 5'336 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
persistence spyware evasion trojan stealer family:formbook
Link:
https://tria.ge/reports/200709-yndfsk7q2j/
Behaviour
Suspicious use of AdjustPrivilegeToken
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
System policy modification
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of SendNotifyMessage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Reads user/profile data of web browsers
Deletes itself
Adds Run entry to policy start application
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

img 1c70465cee9b08a0963c0fabe1802febb3afb50029bdb2e0a2a76ab01803e5d4

FormBook

Executable exe 5749af95d51ba8e5d08b5724c8806a4e9fdd137ad4424ca2dd6f025a2662b421

(this sample)

  
Dropped by
MD5 7887027f7d7976d1868cbde09e2acc52
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23902/
  
Dropped by
SHA256 1c70465cee9b08a0963c0fabe1802febb3afb50029bdb2e0a2a76ab01803e5d4

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