MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3
SHA3-384 hash: ea01b6b621541a79bf7eea9fe39ec7612629ceb081ab855c713d7cf0739e568f0784d2dc44032980ed85086c8102bec5
SHA1 hash: 73f0c5a0421cce448f6a3256f1ee2bf280d67dd9
MD5 hash: f2b021e82dda20584a6a39c0bc64f61c
humanhash: black-kitten-yankee-venus
File name:Doc#230823TRF.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:259'634 bytes
First seen:2023-08-28 13:07:21 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:9Hgpoque360ihU3A+Q/HSTBw+JE2Ltg17Ht3wbSmNfZF:9gue360OwBw+1Ltg1uf
TLSH T1144423BC6C7A2AF671162B7D7BA8776065213F0F15274C4AD3AB5C20DE20E4AD0FC199
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Daniela Bossi <daniela@molinapiumini.it>" (likely spoofed)
Received: "from [37.139.129.109] (unknown [37.139.129.109]) "
Date: "23 Aug 2023 04:26:36 +0200"
Subject: "Wrong IBAN/ACC NUMBER"
Attachment: "Doc#230823TRF.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
CH CH
File Archive Information

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

File name:Doc#230823TRF.exe
File size:273'674 bytes
SHA256 hash: b799dc2f99d7cf59b9379f6ac7b32fe0852d2eab2386d20799c3085d38a576a5
MD5 hash: 1afad6774b537dde1e9aae03499b72b8
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28885.BadCo.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20230823-0335.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64ec9c32b3b7d7c782d0a189/reports/a19e8cc1-131d-466b-9d77-7469e1a359b7/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3
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/b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-08-22 23:44:13 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgjwx6i2ihpsvsltdezmy36yte3zsg7ywxz2av63dtdbsaxlvgzq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230828-qmt38abb87/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
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/b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

zip b9936bf91a41df2ac9731932cc6fd89937991bf8b5f3a057db1cc61902eba9b3

(this sample)

Formbook

Executable exe b799dc2f99d7cf59b9379f6ac7b32fe0852d2eab2386d20799c3085d38a576a5

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 b799dc2f99d7cf59b9379f6ac7b32fe0852d2eab2386d20799c3085d38a576a5
  
Dropping
MD5 1afad6774b537dde1e9aae03499b72b8

Comments