MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813
SHA3-384 hash: 73462b97d3131b28b863942a7f4bfbb205b67be8ba3db3b4e49da4dbb93c9c51df04cf0a51ac7d1214a1f200089ed87f
SHA1 hash: 7ae393fa7a1765f723bbabfe074610fe39c042ed
MD5 hash: 53c36efda9ef10654106b5ea1ce5daec
humanhash: eight-sodium-mockingbird-coffee
File name:Shipping Documents.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:631'190 bytes
First seen:2022-12-12 13:18:34 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:fbfpaNTkgPib4gUiFIjUJo1AIqaAm53fkMJIU/buRXxEdRMNPRowsGZ2d0w3Kp5C:jC00iFKaoYFkk2buhxEdRMjNVZ2d0dC
TLSH T1B4D4234292046574F734580B62EF081CAF11248D1F86E6DEF90DA9882BE5B7D5CF9FE4
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook rar Shipping


Avatar
cocaman
Malicious email (T1566.001)
From: "JO HAU <pre.chr@productsimprinted.com>" (likely spoofed)
Received: "from tdigxayb.productsimprinted.com (tdigxayb.productsimprinted.com [88.209.254.178]) "
Date: "05 Dec 2022 01:08:11 -0800"
Subject: "RE: URGENT SHIPMENT"
Attachment: "Shipping Documents.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
n/a
File Archive Information

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

File name:hbuIgEcnzT30Uma.exe
File size:847'872 bytes
SHA256 hash: a4392c3be6ba337f370c0b2170bf46c6c65f0054304f355d40b0b7fffec718e4
MD5 hash: 0e3d9093a78c09e35a878781b8324dce
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Result
Verdict:
Clean
File Type:
PE File
Link:
https://app.docguard.net/b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63972a460c6473d1671aa030/reports/4a849a7e-9a85-4b5d-8239-b87972da3346/overview
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/b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-12-05 07:36:39 UTC
File Type:
Binary (Archive)
Extracted files:
11
AV detection:
19 of 40 (47.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xgog3uekqag2i6bqvpje4rj2zuuvej3gyq2xmlkn3k3mytw7jajq._file
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader campaign:bmr1 loader rat spyware stealer trojan
Link:
https://tria.ge/reports/221212-rse2xsec31/
Behaviour
Gathers network information
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Xloader
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813

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:pe_imphash
Create hunting rule
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 b99c6dd08a800da47830abd24e453acd29522766c435762d4ddab6cc4edf4813

(this sample)

Formbook

Executable exe a4392c3be6ba337f370c0b2170bf46c6c65f0054304f355d40b0b7fffec718e4

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a4392c3be6ba337f370c0b2170bf46c6c65f0054304f355d40b0b7fffec718e4
  
Dropping
Formbook

Comments