MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646. 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: 11


Intelligence 11 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646
SHA3-384 hash: 36f99bc9ab56f9fb46ab1a7903b8af6dba69e8bb8dd1da1b12ce29eeb8cba0c767851442828f659a9fafd7bcf7416787
SHA1 hash: 4a9ea03e536b8b7dbbaf7550222276c942ae85fe
MD5 hash: 4eeb0c0fbeb1747eaa90a7d831f4d29a
humanhash: georgia-sad-michigan-don
File name:OVER25 DOCS.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:777'747 bytes
First seen:2025-10-16 08:09:28 UTC
Last seen:2025-10-16 08:20:48 UTC
File type: zip
MIME type:application/zip
ssdeep 12288:4m5i0v9hQJyropopeiZEHw4tcp6tJqfqLrrid5YaLHGsSBfDpCbxEc2a81k4N9:lsyruohbwcXqvOdMfBlCbeHL
TLSH T163F4335E82CD0FD7224D59B27C32D0513E690C97A3B7642E6F35C51E9230EA14EA1EF9
Magika zip
Reporter cocaman
Tags:FormBook Shipping zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Albrecht Schneider <shipping@amazon.com>" (likely spoofed)
Received: "from postfix-inbound-2.inbound.mailchannels.net (inbound-egress-11.mailchannels.net [23.83.208.2]) "
Date: "14 Oct 2025 21:42:47 -0700"
Subject: "SHIPPING 10122026 - 10142025"
Attachment: "OVER25 DOCS.zip"

Intelligence

File Origin
# of uploads :
2
# of downloads :
116
Origin country :
CH CH
File Archive Information

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

File name:OVER25 DOCS.exe
File size:1'230'336 bytes
SHA256 hash: a78c1bc27095dd60e16a9a2ad62a7cc60f3d819269a575443fd6b533fe86ad0c
MD5 hash: 9822ffcf2379ff1a1003cc2951143b04
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f0a83d0cffb3244298467c
Tags:
autoit emotet
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script explorer fingerprint keylogger lolbin microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/68f0a846df5cb32bf1ef8614/reports/a29db511-c236-4fb0-b3db-21a58d6e44fc/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646
Verdict:
Malicious
File Type:
zip
First seen:
2025-10-15T04:23:00Z UTC
Last seen:
2025-10-18T03:08:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646
Verdict:
Malware
YARA:
3 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Zip Archive
Link:
https://app.malva.re/file/4eeb0c0fbeb1747eaa90a7d831f4d29a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646/
Threat name:
Win32.Trojan.Autoitinject
Create hunting rule
Status:
Malicious
First seen:
2025-10-15 09:17:29 UTC
File Type:
Binary (Archive)
Extracted files:
25
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6oqwfbmbybfo2hcpfl5sdm7hjfaqvtnozkzocohkr5rrzwggozda._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook adware discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251016-k7j6vsfl9s/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
Link:
https://yomi.yoroi.company/submissions/f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
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:TH_Generic_MassHunt_Win_Malware_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Generic Windows malware mass-hunt rule - 2025
Reference:https://cyfare.net/
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:Windows_Generic_Threat_aeaeb5cf
Create hunting rule
Author:Elastic Security

File information

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

Malspam

Formbook

zip f3a1628581c04aed1c4f2afb21b3e749410acdaecab2e138ea8f631cd8c67646

(this sample)

Formbook

Executable exe a78c1bc27095dd60e16a9a2ad62a7cc60f3d819269a575443fd6b533fe86ad0c

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a78c1bc27095dd60e16a9a2ad62a7cc60f3d819269a575443fd6b533fe86ad0c
  
Dropping
MD5 9822ffcf2379ff1a1003cc2951143b04

Comments