MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462. 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: 6


Intelligence 6 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462
SHA3-384 hash: 169beea2eab92360ccb13044f4edb14e0dc59c3c3bd83dfee6c7e34d36bb6327d27635c5f1efb0e62ca9e15599f93669
SHA1 hash: 7b1968fb24d755c15dbd909a3a1f933cb86938f7
MD5 hash: 7cdfa893a7698d03d561aa014af1a204
humanhash: yankee-alaska-equal-burger
File name:Proforma Invoice is attached.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:334'284 bytes
First seen:2023-04-12 12:44:47 UTC
Last seen:2023-04-12 12:46:16 UTC
File type: zip
MIME type:application/zip
ssdeep 6144:SZgbpuHNZL+Jz2o95JxrPKunEqO62+Lp7jZ146tZ50DUTHwnzvSD96j6Y2fWPpCH:ugVcmJz/iunEqO62+Lpc6tTTug6G5W8
TLSH T1586423601A2391FB54003FC1FF91002A996986B787CB81D8F5C577A1E87C2A7FD3662E
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook INVOICE zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Mohsin Ali Butt <info@mef.ae>" (likely spoofed)
Received: "from pkz36-2-spamexpert2.hoster.kz (pkz36-2-spamexpert2.hoster.kz [185.111.104.21]) "
Date: "Wed, 12 Apr 2023 01:08:47 -0700"
Subject: "Re: Re: Proforma Invoice"
Attachment: "Proforma Invoice is attached.zip"

Intelligence

File Origin
# of uploads :
2
# of downloads :
736
Origin country :
CH CH
File Archive Information

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

File name:Fmywfytcpwdmvi.exe
File size:724'480 bytes
SHA256 hash: 94aa407f90054e51d00b6c555ef7b566944290e990f3790bf18579afe0cf60b2
MD5 hash: 3df32efa05c88263b4ab0001b5b86aca
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Variant.Barys.416039.28375.3630.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
dealply keylogger overlay zusy
Link:
https://www.filescan.io/uploads/6436a7d0f9f16cdc5d2e1085/reports/2dc0f929-a05c-457b-b1bc-eed3010b752d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462
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/cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-04-12 12:44:52 UTC
File Type:
Binary (Archive)
Extracted files:
38
AV detection:
6 of 37 (16.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=z4q3hm7p4pf5ku3e56ycmxhg675wtlbykrlzdvaq5gh5vt4zqrra._file
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:modiloader persistence trojan
Link:
https://tria.ge/reports/230412-qfh3daea2s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Adds Run key to start application
ModiLoader Second Stage
ModiLoader, DBatLoader
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.21
Link:
https://yomi.yoroi.company/submissions/cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462

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:CMD_Ping_Localhost
Create hunting rule
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:win_dbatloader_g1
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Description:targets stager

File information

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

Malspam

Formbook

zip cf21b3b3efe3cbd55364efb0265ce6f7fb69ac38545791d410e98fdacf998462

(this sample)

Formbook

Executable exe 94aa407f90054e51d00b6c555ef7b566944290e990f3790bf18579afe0cf60b2

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 94aa407f90054e51d00b6c555ef7b566944290e990f3790bf18579afe0cf60b2
  
Dropping
Formbook
  
Dropping
MD5 3df32efa05c88263b4ab0001b5b86aca

Comments