MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d. 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: 12


Intelligence 12 IOCs YARA 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d
SHA3-384 hash: 953530c7c8c70a8cb37349a864d903d61395945f2c52c5347a7e3990e1f4d384b474b966b0f59da015553e02717aaac5
SHA1 hash: acf848bc7dc0a476b1408d6759fd3f7b35b52c41
MD5 hash: a018ee2207229b9f826312c83beec7fa
humanhash: september-saturn-music-mountain
File name:PRE ALERT NOTICE.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:692'644 bytes
First seen:2025-12-08 10:33:03 UTC
Last seen:2025-12-08 10:45:01 UTC
File type: zip
MIME type:application/zip
ssdeep 12288:/WkmDe8uJkh1LysfR8S9mJaUZqMgkU8379q7Y8s5C+ZvWsAtlFQtMu7g:/WytgLxfR79mQUZhgL8hqVs5CAvwtlFj
TLSH T179E43382CB8A9BF170E520E773DCD965BF34BF0362266E23546B61105A7E22CD5624F3
Magika zip
Reporter cocaman
Tags:FormBook zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Dennis Hollmann <D.Hollmann@unicon-logistics.com>" (likely spoofed)
Received: "from unicon-logistics.com (unknown [172.245.12.77]) "
Date: "28 Nov 2025 02:40:21 -0800"
Subject: "PRE ALERT: MBL: 249205312 // HBL: GLOBE71708"
Attachment: "PRE ALERT NOTICE.zip"

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
CH CH
File Archive Information

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

File name:PRE ALERT NOTICE.exe
File size:718'336 bytes
SHA256 hash: 2aa5ce3561dc657a157460383c7c9b8db54ac8a6969627009c8d1062316a6130
MD5 hash: 8589cf7187567a34e487cc53ecfe2285
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b8bf4117-5a90-4fbb-8eaf-9f6fec2f4f99/
Detection(s):
Sanesecurity.Foxhole.Zip_fs3462.UNOFFICIAL
Create hunting rule

Sanesecurity.Foxhole.Zip_fs3202.UNOFFICIAL
Create hunting rule

Sanesecurity.Foxhole.Zip_fs3192.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.AutoIt.1413.17876.11912.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6936a842db58e1a2c22b7d2c
Tags:
autorun autoit
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
autoit compiled-script microsoft_visual_cc packed packed packed upx
Link:
https://www.filescan.io/uploads/6936a970bc15eab491f6fdb7/reports/3aea3b57-6f3a-4cfb-8b5e-6b6b7f9d960d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
File Type:
zip
First seen:
2025-11-28T08:11:00Z UTC
Last seen:
2025-11-30T04:31:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d/results?tab=lookup
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d
Verdict:
Malware
YARA:
3 match(es)
Tags:
AutoIt Decompiled Executable PE (Portable Executable) PE File Layout Suspect Zip Archive
Link:
https://app.malva.re/file/a018ee2207229b9f826312c83beec7fa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d/
Threat name:
Script-AutoIt.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-11-28 12:34:21 UTC
File Type:
Binary (Archive)
Extracted files:
53
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ewg5ldas6dhbzqum5epiebkmwlt3vl4lowoz5go2xqsobnc74a6q._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan upx
Link:
https://tria.ge/reports/251208-nt5r7adw2b/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
UPX packed file
Drops startup file
Executes dropped EXE
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/258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d

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: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__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_Win_ETW_Bypass_2025_CYFARE
Create hunting rule
Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Create hunting rule
Author:malware-lu
Rule name:upx_largefile
Create hunting rule
Author:k3nr9
Rule name:win_upx_packed
Create hunting rule
Author:Reedus0
Description:Rule for detecting UPX packed malware

File information

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

Malspam

Formbook

zip 258dd58c12f0ce1cc28ce91e82054cb2e7baaf8b759d9e99dabc24e0b45fe03d

(this sample)

Formbook

Executable exe 2aa5ce3561dc657a157460383c7c9b8db54ac8a6969627009c8d1062316a6130

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 2aa5ce3561dc657a157460383c7c9b8db54ac8a6969627009c8d1062316a6130
  
Dropping
Formbook
  
Dropping
MD5 8589cf7187567a34e487cc53ecfe2285

Comments