MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 884fbcf398a2c6a229040d209f39e5ca66bf5100f9707cccf0c6f5e3bd6ecb5a. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 884fbcf398a2c6a229040d209f39e5ca66bf5100f9707cccf0c6f5e3bd6ecb5a
SHA3-384 hash: 8b9f5ec7e42873ca89026a453938b688d2e485d53adf249cae467b8379f043820bebcd89340ee4e310432ec8bdd3f6f0
SHA1 hash: 624f1097def8aa7289a7ecbe09e742ed63f7e73c
MD5 hash: ccadc18e1c9163f1831c609dcb33ab56
humanhash: summer-michigan-pluto-illinois
File name:new order_list_pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:446'464 bytes
First seen:2020-08-27 05:23:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:6Jbvlzyr2PbEj5480WStWUxLHp9a9SzkyHYXk66SL4H4J+fcgcI/YwHlQNPlxP:6v9I2DB8IYUVH3a9qkOCLM4Ac8SNPP
Threatray 2'241 similar samples on MalwareBazaar
TLSH 479418323D838434DA2B03B015AC9EC7B7299A543B54C72E67D7234C5F02AAB7B2556F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: sdj0.015.zazxonio.ml
Sending IP: 161.35.198.148
From: J. C. Lin <sales@aled-cn.com>
Subject: Re: New Order
Attachment: new order_list_pdf.img (contains "new order_list_pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/51575/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/452241
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/884fbcf398a2c6a229040d209f39e5ca66bf5100f9707cccf0c6f5e3bd6ecb5a/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-27 05:25:09 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rbh3z44yuldkekiebuqj6opfzjtl6uia7fyhzthqy326hploznna._file
Verdict:
malicious
Similar samples:
07f7b852dc1cd3c5527fef6c09019b723a9e17ddc6b236c16e992784940b7a81
Formbook
0bf6ccdd920a50186f7318c51564ecc8f502302b084a5fda3feadb0d51e40f24
Formbook
1e82d551bb0693edad6a527c0355b59476d25afc326168b616205fe186ca5a30
Formbook
3c3a52620a36e8ef2806ffad5a241444d93b7eb839c3b3cfa4697e130d349dcc
Formbook
5bd5a94befaf51c0702273d144aa5d31fc88e7f677ea33ea98408450e1b535d7
Formbook
70ecffff57ecd39682bc7de003d937b43d0b0c9bfaadd315d236627475608e54
Formbook
85f9c52380c96ddf3aa66361640a6a6232a182d5d4437de8a3585fa0d216ebc4
Formbook
887de911a26e0008429adcba8abc212d36423fae62d40aa1df57e2883db77d45
Formbook
d1176c3c4ab396d3bad7dd15c881fdb4e38922e9f7e539dc1035768f366edcf9
Formbook
e224e30554ce3a83c6ef2ca1c81b50ca377486f55bed19078658578bbef844f0
Formbook
+ 2'231 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat family:formbook
Link:
https://tria.ge/reports/200827-tr436zr676/
Behaviour
Formbook Payload
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/884fbcf398a2c6a229040d209f39e5ca66bf5100f9707cccf0c6f5e3bd6ecb5a

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.

bc5b74ca5f784cf6f26b2b241242ca02

Formbook

Executable exe 884fbcf398a2c6a229040d209f39e5ca66bf5100f9707cccf0c6f5e3bd6ecb5a

(this sample)

  
Dropped by
MD5 bc5b74ca5f784cf6f26b2b241242ca02
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/51575/

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