MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a26b0b8ed3e9a7159a68553861239c8ba255afcf36fc645d33bc3a36b7849496. 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: a26b0b8ed3e9a7159a68553861239c8ba255afcf36fc645d33bc3a36b7849496
SHA3-384 hash: 26d7b62f7d1014d8bdbef6d7ae9c901ccffab86a6014870361b5d64792123815d1436f14843029175c11e956d249de69
SHA1 hash: 91aad3b2300b4212482a8bf15ce87d8832c359f5
MD5 hash: c7c93dec3793f885f2989f6b6e8cef69
humanhash: shade-skylark-indigo-potato
File name:payment.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:490'496 bytes
First seen:2020-07-07 08:28:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:lFp/5ETAc1kz7mgnq2cGyKQPsngZIgGMJu:Dp/5ETAc1kzBSGyggZ
Threatray 5'108 similar samples on MalwareBazaar
TLSH 9CA46A3AB7C3907ECD36027194A85DE6F13869613242E3EFB2D353288E0519FB7561E6
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: SD84.btc-net.bg
Sending IP: 212.39.90.84
From: mu-pleven@mbox.contact.bg
Subject: R: R: R: R: R: payment
Attachment: payment.rar (contains "payment.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/22058/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Deleting a recently created file
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a26b0b8ed3e9a7159a68553861239c8ba255afcf36fc645d33bc3a36b7849496/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 08:30:09 UTC
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ujvqxdwt5gtrlgtiku4gci44rorfll6pg36gixjtxq5dnn4essla._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3e98d7f59e495ddfa5140a50f70347bb4a56296ca2dcb6602f65ebb4e4a0373b
Formbook
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
Formbook
5ea463243b051351c219469515fb9b39d01c5c3c4f4698bd6164e36070622d35
Formbook
7523c12a912fa702d0d82798e013bf01d7be7b4b0fd08989bdb48c04738c876c
Formbook
9b2c6f08cd9a4e3b144422de4d540290542ce50239f2c85697a036a461b25264
Formbook
ba47cf38b9634cbe5fd3ae81f2f7cef3554b8f57f59501b9ea5fde8c73ff4a4e
Formbook
ca6d30359259e4b3387ea8cde986038557c85550fe9d2eadfc5bf40777fb2cfb
Formbook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
Formbook
dea5303370177b621cdd1fd497396ddaa9e94d3edd1407339f52f0dc85a67046
Formbook
e13acda03eb4829793beb5c0664d5752663b7ef5ae72b63724e7eaf189a9fec4
Formbook
+ 5'098 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200707-hp6wyng48x/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Modifies Internet Explorer settings
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run entry to start application
Checks whether UAC is enabled
Loads dropped DLL
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

rar 820f8b06d1157ed5cde3256a84a0aedcaeeb7adc8af70de311bd5d7e1571f1da

Formbook

Executable exe a26b0b8ed3e9a7159a68553861239c8ba255afcf36fc645d33bc3a36b7849496

(this sample)

  
Dropped by
MD5 21c413b0c7bab7eca6efdd29ae88d3b6
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22058/
  
Dropped by
SHA256 820f8b06d1157ed5cde3256a84a0aedcaeeb7adc8af70de311bd5d7e1571f1da

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