MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f98571de88f8e13c4197c46d74287d2f0aef827a196ea51cb4b934c6857e04b. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f98571de88f8e13c4197c46d74287d2f0aef827a196ea51cb4b934c6857e04b
SHA3-384 hash: 6894dfcf6a59aedd9ece6ebc3c518bcdc622f2f5fe5ca87a78230292084065182fcfecc1c24f01c0deb5a8b2b459ab26
SHA1 hash: a0daa5b82bc92e59128a23b4f76e7b7afc51f782
MD5 hash: 22655725e4ef7b4ee0f8db5ea8d91cc6
humanhash: blossom-coffee-august-snake
File name:Quotation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:954'880 bytes
First seen:2020-10-21 10:09:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'638 x Formbook, 12'244 x SnakeKeylogger)
ssdeep 12288:z9EJ9wt2L2C1Iz0i1h4L9XxkUTEnHi4nhxp+sGPJEN:z4YC1Iz0ikzkUyC4vaE
Threatray 3'940 similar samples on MalwareBazaar
TLSH FB159D726D65582DC56E06B25065C4F1BAB61ECB3FA0860D71DB7F0B3E317266B1320B
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: rdns0.hyterm.xyz
Sending IP: 134.209.44.46
From: ALPHONS CHACKO<Purchase5@i-m-s.ae>
Subject: RE: Inquiry RFQ agaisnt ENQ NO-E1503010
Attachment: Quotation3.rar (contains "Quotation.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
79
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/74002/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Creating a process from a recently created file
Launching a process
Launching cmd.exe command interpreter
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/505620
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)
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f98571de88f8e13c4197c46d74287d2f0aef827a196ea51cb4b934c6857e04b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-21 09:23:33 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h6mfohpir6hbhrazprdnoquh2lyk56bhuglouuoljojuy2cx4bfq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1d9958a0a083b0f134bf5c777e6cee112d30f6059e3f7d301cf78e3777b7a637
Formbook
6841a00603c067163259e142990659c0217ded69e2895d187fa65f9439034c7f
Formbook
82ec33dd4f26eab172d8a0fc536751d12153a3f7175351da311a7059217c670e
Formbook
914712c702b94abb26e0d1edbd54712d62a2fdb6cfbc9bd41ac8bcb84296358f
Formbook
b7859dd4f12959b0c3b717089ddde8f623d288e27d092d93b06afaf9fc4a51d8
Formbook
bd959929f72ad78adfc193a1b6f3951a41cb2fd273e97680ca41030c7c4ad271
Formbook
bfae046475f1458c460cf4eed534a48c8e769fbfc622138170c3945a4ad61a90
Formbook
ccfefbc3469336f27478735b5cf445612a128621b492a6a9b5a6a235a3fde320
Formbook
d9600ffc9406d71c60b7eb036248230510c3b971a1de563ca7b8b57e822f7879
Formbook
e85f434810652692f3e0a0738d9156899afcbd2bed42a6f328f0092d72a1db34
Formbook
+ 3'930 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201021-hg83kgdptx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.obluedotpanowdshop.com/pe3/
Unpacked files
SH256 hash:
3f98571de88f8e13c4197c46d74287d2f0aef827a196ea51cb4b934c6857e04b
MD5 hash:
22655725e4ef7b4ee0f8db5ea8d91cc6
SHA1 hash:
a0daa5b82bc92e59128a23b4f76e7b7afc51f782
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
SH256 hash:
9bec550624b5ebe019ea8952f9df0694a62a0fe02d6da901d0778bfbeb0ac219
MD5 hash:
292808395f593509fb3169d5dfba0749
SHA1 hash:
b3778f6c62472df1b896ff92e823409cdf87e225
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
SH256 hash:
19d9922060be89a70b76e5c0056e751f1baa5d41819235c92cf4f5d7668e1267
MD5 hash:
811864a0b06c529af894a7fec6ddbf47
SHA1 hash:
d35b82933eb06a6ec60e8cbbdb65eb6cdcaeb6d2
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
Parent samples :
afa2f55e149097f9b250142bbfd94d9d56d10649c96adb079fdb0dfdac7c6660
69e2ae11e1b5cbe120bf02301191a1cf05e87fc09b09d63bd782abbf3615d05d
0b778873c94f6bc89a40294c0e85a38ab82509260cd2a2e8b73d00c5c90e8757
7ddfa6f44a60f4b894321f6977f8121cfb371c3c61ac872c58ba61fd5ee13deb
SH256 hash:
30140c3bf5874d7d184b15513016f9de1524ae95a5efe9a1cb15bad6d6936d64
MD5 hash:
03847d82611bc6461cbb99ca768828f1
SHA1 hash:
39859a3fd3326520dfd1ed10456bb227933a8871
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
SH256 hash:
7f652e1863a72b46679bf0d0d2d3f4dfc48b692f7396f1ca1edec4cac7fac28a
MD5 hash:
19a0d3e21c9384c6edaf56012a793f32
SHA1 hash:
3f34a9cd4252f0ebc5fa0b719cabea577c5b9a9f
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
SH256 hash:
30351057c5f68d7e5111885e43ea9c87dd0f1944fe717798bf4e1c03f5b08a36
MD5 hash:
8c09ce5bd7f6be2280ba37a21610b049
SHA1 hash:
79509bb45f36fe2fc9f41eee81eb0b2b80cbb4a1
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
Parent samples :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 hash:
91cafd9ba66c4f654e648a3676fcb3657d9d5595964e0d98f21dc1171e1d794c
MD5 hash:
6a9f392b872e0ddba91cb84d83b2101e
SHA1 hash:
aa9551a69358af1c1dab4bc9ba94a33c4a9fac56
Link:
https://www.unpac.me/results/4972934e-c18f-4e87-b509-d8d899ae645c/
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 cbf51c2c6a8e8d7c0a27cf0a9d4d8677b142826ee4a82aeb721f5c2c6226f8ae

Formbook

Executable exe 3f98571de88f8e13c4197c46d74287d2f0aef827a196ea51cb4b934c6857e04b

(this sample)

  
Dropped by
MD5 c9f254921a3ae0cfe517c889d1f5e97e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 cbf51c2c6a8e8d7c0a27cf0a9d4d8677b142826ee4a82aeb721f5c2c6226f8ae
Cape
Cape
https://www.capesandbox.com/analysis/74002/

Comments