MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb44a88339e83bc2ecbd06edef1acf6c54e66c4c4922005a67c27f970f717075. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb44a88339e83bc2ecbd06edef1acf6c54e66c4c4922005a67c27f970f717075
SHA3-384 hash: b1bdb1bbfc97288d125c7ff7ccb7ad877e57ac20dd961f45392d3fb678eec95b22be0e2f284e354c803966da70aac1d6
SHA1 hash: e9a7b4c02a2f2916a3604a417af65260e33436a4
MD5 hash: 7e8eedd86f24f4e63ed26ff677162e75
humanhash: yankee-vermont-oklahoma-early
File name:CMA-Inquiry DA39-RFQ-Urgent order-07820.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:974'848 bytes
First seen:2020-07-09 06:41:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:1FbdFOA59mKTifVLFPG4KWuQOpQly5oEv+F5V:TDi9vKWuQOpQly5bv+j
Threatray 14'116 similar samples on MalwareBazaar
TLSH F3256C3A3A81942ECE7E067184A89BC0777165473B06CB9F76DF035C5E026CBBB4625B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: ngay7.localdomain
Sending IP: 45.127.62.195
From: APTACA SPA <exports@aptaca.com>
Subject: CMA-Inquiry DA//39-RFQ-Urgent order-07820
Attachment: CMA-Inquiry DA39-RFQ-Urgent order-07820.rar (contains "CMA-Inquiry DA39-RFQ-Urgent order-07820.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/23426/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Reading critical registry keys
Launching a service
Setting a keyboard event handler
Setting browser functions hooks
Possible injection to a system process
Stealing user critical data
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/bb44a88339e83bc2ecbd06edef1acf6c54e66c4c4922005a67c27f970f717075/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-08 17:06:19 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xnckrazz5a54f3f5a3w66gwpnrkom3cmjeraawthyj7zod3rob2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
4fc6cac9d7547036158bc3aa8be06f2a6be57eabc406abf3a39c2cacb5f410b8
Formbook
6f827b68129d30609057c2e6b36be05649fce91d6bc8ee3d3566ca5c6aba562b
Formbook
7f4d53805b50624cb5e92857423661c3aef89e24c4ca63e79fdf62cbe2cb694c
Formbook
8909f47d9db9c66a8ee7b08cf9dad1551e905d48b76f4c3a2acf926c26752ee7
Formbook
9b2c6f08cd9a4e3b144422de4d540290542ce50239f2c85697a036a461b25264
Formbook
9ebc903ca6847352aaac87d7f904fe4009c4b7b7acc9b629e5610c0f04dac4ef
Formbook
d3664113994262962936ebe74d0355986970def0cd0bcdcf088fe102047df9ba
Formbook
da2466ff48f9de5fc946f2c90063f1deb996b01aa93950f51996e888fa93652d
Formbook
e13acda03eb4829793beb5c0664d5752663b7ef5ae72b63724e7eaf189a9fec4
Formbook
e6d371badc121f232f4305f3a50f0a136d1b7edbc3337414ca692c26ae41986c
Formbook
+ 14'106 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
evasion trojan spyware keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200709-mrw6zw6v7n/
Behaviour
Suspicious use of SendNotifyMessage
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Reads user/profile data of local email clients
Loads dropped DLL
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Deletes itself
Executes dropped EXE
AgentTesla
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:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
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 b920aeffb70ebdefb2569502b81fce5ee648ec03a2b37388ca3599da7ffd0076

Formbook

Executable exe bb44a88339e83bc2ecbd06edef1acf6c54e66c4c4922005a67c27f970f717075

(this sample)

  
Dropped by
MD5 4f3e288c6cc6e65b7e935c6791797ae5
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23426/
  
Dropped by
SHA256 b920aeffb70ebdefb2569502b81fce5ee648ec03a2b37388ca3599da7ffd0076

Comments