MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7
SHA3-384 hash: d72d3ede0c49cafcd37b44cbe79bac13514072f2805acba0291f68e72240673eb5bd116d38e11ddf1a1f9dc704dc0d12
SHA1 hash: 0f753f165c21edefda6bafcddc71c958df9e70b9
MD5 hash: 45028195744e486c75b5e3dce5c00f71
humanhash: illinois-bacon-tennis-oranges
File name:Revised invoice.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:629'957 bytes
First seen:2023-11-29 13:13:50 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:tia0XRaPevDoI6ilc5suhmIcHyIA+GV17HL/l1WRsZOSJNgP0P4EJ:kjham/esuhmIcS+GX7HL/l5Z/gsPZ
TLSH T116D4235F989BE78B2339D80D600D5B09A4F688F9E663213C529843F8C7C7A8359F7265
TrID 58.3% (.RAR) RAR compressed archive (v-4.x) (7000/1)
41.6% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook INVOICE rar


Avatar
cocaman
Malicious email (T1566.001)
From: "Dhanaji Thorat <devansh@safexfire.com>" (likely spoofed)
Received: "from safexfire.com (unknown [185.222.57.140]) "
Date: "29 Nov 2023 10:15:12 +0100"
Subject: "RE: Revised invoice"
Attachment: "Revised invoice.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Revised invoice.exe
File size:713'216 bytes
SHA256 hash: 398d657a86bb82638352ce58d7f71da551cc07c7a0831f83a588dff8bca0ca3a
MD5 hash: 3e7f2a560c5888e30f136a7d9ce8d4dd
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Labled as:
Mal/DrodRar
Link:
https://www.hybrid-analysis.com/sample/e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-11-29 03:10:21 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4faairtr3jlx3yfkh7qhgnqr2gxiwignfbm2drdczgk5hjmn2s3q._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231129-qp4qfage7y/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

rar e140044671da577de0aa3fe0733611d1ae8b20cd2859a1c462c995d3a58dd4b7

(this sample)

Formbook

Executable exe 398d657a86bb82638352ce58d7f71da551cc07c7a0831f83a588dff8bca0ca3a

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 398d657a86bb82638352ce58d7f71da551cc07c7a0831f83a588dff8bca0ca3a
  
Dropping
MD5 3e7f2a560c5888e30f136a7d9ce8d4dd

Comments