MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6
SHA3-384 hash: a45f8dfdcb55b478926fcb96228d19a0dff96b7401003ec8085d3f8590ec4bc9ce2d88c1767ae173afcbd044fa9abe63
SHA1 hash: 06156ebfb299311dff591c9d7e8c23e2b26edc39
MD5 hash: 7bfccad26e26dfb9b8da5e98412e61ad
humanhash: lactose-ten-winner-jig
File name:Revised invoice.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:615'729 bytes
First seen:2023-11-02 10:00:12 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:AraDNXE6iZXAK03/h0JT3vDJjgiXeRmpz4Pg1mD:AODRE6iZXkf1Rmwz
TLSH T16ED433A4C94F7963060B0228EC994A6A6D7CA9395534C3AFB3EFE3610E5C03765CC7D9
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:INVOICE payment zip


Avatar
cocaman
Malicious email (T1566.001)
From: "feng.cao@murata.com" (likely spoofed)
Received: "from murata.com (unknown [185.222.57.154]) "
Date: "2 Nov 2023 08:28:10 +0100"
Subject: "RE: Confirm revised invoice to proceed with payment ASAP."
Attachment: "Revised invoice.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
113
Origin country :
CH CH
File Archive Information

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

File name:Revised invoice.exe
File size:671'744 bytes
SHA256 hash: 9ab77e961ee2eaaee3da8d49b8f9f09444b279c6f258cf8e9769e4a16c22fbd4
MD5 hash: 20ad07241b54c7690a5914b6069151b2
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fn23.UNOFFICIAL
Create hunting rule

Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6543735d0ca0b01851729801/reports/1fc8dc0e-753b-4ccf-af2d-fe8000d3aaae/overview
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
100%
Verdict:
Malware
File Type:
Archive
Link:
https://malprob.io/report/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-02 07:33:14 UTC
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yj4qbec6yggu3kxfffhqihlkqcaash6m46nvdank5o7gsm5muxda._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231102-mns1rsae91/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
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/c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg

File information

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

Malspam

Formbook

zip c27900905ec18d4daae5294f041d6a8080091fcce79b5181aaebbe6933aca5c6

(this sample)

Formbook

Executable exe 9ab77e961ee2eaaee3da8d49b8f9f09444b279c6f258cf8e9769e4a16c22fbd4

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 9ab77e961ee2eaaee3da8d49b8f9f09444b279c6f258cf8e9769e4a16c22fbd4
  
Dropping
MD5 20ad07241b54c7690a5914b6069151b2

Comments