MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4906242ed8ef857d5fe0dd5b8e3f1f90baa1bdf6f1030ba09af4a2b8892e08b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4906242ed8ef857d5fe0dd5b8e3f1f90baa1bdf6f1030ba09af4a2b8892e08b
SHA3-384 hash: 964165acb59a00c764abba36eab9f9c97b6437e4abddd6532d15a811a6b73d1cf7ddfffe177fc1b77dac626187cfb301
SHA1 hash: 4e059624fbef9f69a175e54cfb99a4d578dd4902
MD5 hash: 67f023c3b671fd6cd5c0b443a8d32f7f
humanhash: table-nuts-mockingbird-queen
File name:PO_3801.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:318'976 bytes
First seen:2020-06-16 05:05:04 UTC
Last seen:2020-06-16 06:12:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:pNy0l7vFaPGnuXTTKHx5vwa2ruplgMeQdGH3nGMMxBvz55TlK4s:pNy87vWUujOH/vw/P5H3sxBHE4
Threatray 5'229 similar samples on MalwareBazaar
TLSH 7E64F109A78C9739D9AC4A7CC4E1141457F8E46B2A13EB9E4EC031FE5DA37E48902F67
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: yuntong-batt.co
Sending IP: 111.90.141.203
From: Kabri Hilgers <Kabri.Hilgers@yuntong-batt.co>
Subject: RE: RE: INCREASED ORDER
Attachment: PO_3801.rar (contains "PO_3801.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/10545/
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.fc.14156.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-16 05:07:03 UTC
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=usigeqxnr34fpvp6bxk3ry7r7ef2ug67n4idboqjv5fcxces4cfq._file
Verdict:
malicious
Similar samples:
013735f40ff44d748d4a22aa9600da757ed47f5dd1bba77e4bd430f3fc420658
FormBook
1296fea5be2ddeca7afbb565183c83b9a5660eb1fe98942bb2f048be7b237f6c
FormBook
15c0c580f217bf8fd7f973813900f8abb2c366b833961eb87703dc3f0b20f90b
FormBook
1a3bf054f01ab4ec1c068ee4bbb5961a3109e61a12374c26501ce7a772279463
FormBook
2f07a5d8c1e6ac465e5d306b0fb8335aa41f3204b9bf9793337a849a93921a9a
FormBook
5f409bddf5b4efe31ec833332774381385c1a31e3e2d8e5e3b2d2f934be0a5a7
FormBook
948d5aa11288d1ea873b27aee4be30b985be3bb4e1735a1cba917161635e242f
FormBook
de931e02ce90c509d5dcf1c3d53352809a909410c00796bdfa9f10514a37a627
FormBook
fd55e36f5d1d4da2caf47266bc9b12911566ad0dd1c98c0d42360ca8e0f82186
FormBook
fe9732838a0e6bcbf67213e7fd8bd7ca5e9b35a27041c50b74ca26bb08133fbd
FormBook
+ 5'219 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/201109-345e3h2j2e/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Suspicious use of UnmapMainImage
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.regulars6.com/i032/
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

File information

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

Malspam

FormBook

rar 0ff34aa3dd04a54b54ddda375aa29f3c7fe725404158c0c86fb96e544c709227

FormBook

Executable exe a4906242ed8ef857d5fe0dd5b8e3f1f90baa1bdf6f1030ba09af4a2b8892e08b

(this sample)

  
Dropped by
MD5 aa82af71fb4da53c669ee4d2240171d0
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0ff34aa3dd04a54b54ddda375aa29f3c7fe725404158c0c86fb96e544c709227
Cape
Cape
https://www.capesandbox.com/analysis/10545/

Comments