MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584. 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 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584
SHA3-384 hash: 9b0727477baafc486cd167bfe1a59ff937a112eb4a4b80fb1b7946565ca4800f76b3ea1e83632a8adadebb191f0f9a54
SHA1 hash: 3fc9fc8f6c2dc2c15d0a3a56db17c3a649f777d7
MD5 hash: 1b8896f7cc22e5f3c6f8efba0ab18511
humanhash: kilo-ten-low-south
File name:Order #0827 pdf.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:308'017 bytes
First seen:2023-08-30 17:18:30 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:0u/REBAup4BMg+gMct6K47xj9bbOp60nlnCARILiEOk/:zJEaupclQ2/49FbOpHnMARNED
TLSH T1C8642352A3CA99C74615E0593F601FB753BB6BCBBCC38E1351C0A4747B2B06A65C7683
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: "Rita Zhang <xinnet@xinnet.com>" (likely spoofed)
Received: "from 5963110.madaproperties.com (5963110.madaproperties.com [162.240.210.87]) "
Date: "28 Aug 2023 05:29:40 +0200"
Subject: "Fw: Repeat Order #0827"
Attachment: "Order #0827 pdf.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
CH CH
File Archive Information

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

File name:Order #0827 pdf.exe
File size:322'022 bytes
SHA256 hash: 091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe
MD5 hash: cf628881be331f30699eb1dd5aa4dfc4
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs3391.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.FileRepMalware.29922.20708.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.23990.ZipHeur.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/64ef7a077444d2eb09f3734a/reports/2b7a17ff-47b2-4923-b862-b7af33d2653f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584
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/a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2023-08-28 00:13:42 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
20 of 38 (52.63%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uni32ux5lscurznuhdyryusli7jxph65hhiif4zxo43q4n5qwwca._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/230830-xjmnashc2w/
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
Executes dropped EXE
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/a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584

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:DebuggerException__SetConsoleCtrl
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip a351bd52fd5c8548e5b438f11c524b47d3779fdd39d082f33777370e37b0b584

(this sample)

Formbook

Executable exe 091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe
  
Dropping
Formbook

Comments