MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3. 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: 7


Intelligence 7 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3
SHA3-384 hash: 826b884d731bea83a112a9235813f05ac1f2589d7a58ac1c4992b2351783eff57b704f52dd4a4b0d65eb84b79bfaa9ac
SHA1 hash: cd65d74b7afc8a7a3aae9d26502405a4738d46ed
MD5 hash: 5acb5b6a18f284bb3e57b91abe3f5154
humanhash: network-winter-harry-kansas
File name:Revised invoice.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:712'484 bytes
First seen:2023-06-12 09:37:32 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:j/GrzB4zRNmxJ/HMFe8X5d5UEarAHr5Wjsl7c88N9xVxcqEn6vsqFvsieDdVJpL:j/GPujkstJdaVAHr59c8oYqE6vRvWL
TLSH T10FE433F5781FE10E869C6E46645185C9CC877321F1C4B8CEC5696730E888ECEEAB2977
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook INVOICE payment rar


Avatar
cocaman
Malicious email (T1566.001)
From: "mahindranorthcoast@telkomsa.net" (likely spoofed)
Received: "from telkomsa.net (unknown [185.222.58.246]) "
Date: "12 Jun 2023 10:33:30 +0200"
Subject: "RE: Confirm revised invoice to proceed with payment ASAP."
Attachment: "Revised invoice.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
128
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:846'848 bytes
SHA256 hash: 4500eda0f4d1cf716592b3e4d2576df69c3a68b585c6de4b560452454474c831
MD5 hash: fa4393d1a9b33465ef4915178348f5d6
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
lolbin packed
Link:
https://www.filescan.io/uploads/6486e7889f45f940f55381b4/reports/c577fe28-58fb-4068-986f-b839aa4729ea/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3
Result
Verdict:
MALICIOUS
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/ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3/
Threat name:
ByteCode-MSIL.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2023-06-12 08:37:37 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5q4mzsvskazjx2cbgbbkroqmgjutsov2vfp6vfrfsgc5ftbc2gzq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230612-new7hacc7y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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

rar ec38cccab250329be8413042a8ba0c3269393abaa95fea96259185d2cc22d1b3

(this sample)

Formbook

Executable exe 4500eda0f4d1cf716592b3e4d2576df69c3a68b585c6de4b560452454474c831

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 4500eda0f4d1cf716592b3e4d2576df69c3a68b585c6de4b560452454474c831
  
Dropping
Formbook
  
Dropping
MD5 fa4393d1a9b33465ef4915178348f5d6

Comments