MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77. 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 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77
SHA3-384 hash: 5f7f3ce9a7364d0014c7d2dd1915da30ac4d214893ec3ceb398b39a8df14ea843b653c37f0b268d17035e469cf2bd682
SHA1 hash: a765625f2c94633b53826e9d6c12228a5dc0e386
MD5 hash: 73312dcf38018e6744dbb69975f4af02
humanhash: fourteen-three-xray-october
File name:ORDER#60541 PDF.r00
Download: download sample
Signature Formbook
Create hunting rule
File size:300'163 bytes
First seen:2023-09-27 06:25:11 UTC
Last seen:Never
File type: r00
MIME type:application/x-rar
ssdeep 6144:QQBkZci1AQgXg1voorKXb5rNnOB/BVeyYhMhOHHPkZvKyA9:QLdAQgQvb+t5OB/BsRWZvKL
TLSH T1205423A4962A09A75468B383EF96B600057D9B3FCED56C9B07FC0C8F52CA29D14731BD
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook r00


Avatar
cocaman
Malicious email (T1566.001)
From: "Yeevon Lim <info@firebirdref.com>" (likely spoofed)
Received: "from [81.161.229.115] (unknown [81.161.229.115]) "
Date: "27 Sep 2023 03:08:19 +0200"
Subject: "Re: Order Confirmation"
Attachment: "ORDER#60541 PDF.r00"

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
CH CH
File Archive Information

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

File name:ORDER#60541 PDF.exe
File size:315'914 bytes
SHA256 hash: dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888
MD5 hash: 316a7b13ad3a427cfff4398ea219e0a1
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Rogue.0hr.20230927-0635.UNOFFICIAL
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Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/6513cafa83a0c6425d00755d/reports/28275d58-b77b-4ece-ba8a-798dd712b13b/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77
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/65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77/
Threat name:
Win32.Trojan.NSISInject
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Status:
Malicious
First seen:
2023-09-26 23:25:06 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
20 of 36 (55.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mxwjtkocr3zuwqfcar5rkxjthgio4zliasxqyl4ljftpmmgynr3q._file
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/65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77

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:DebuggerCheck__GlobalFlags
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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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
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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: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

r00 65ec99a9c28ef34b40a2047b155d333990ee656804af0c2f8b4966f630d86c77

(this sample)

Formbook

Executable exe dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888
  
Dropping
Formbook
  
Dropping
MD5 316a7b13ad3a427cfff4398ea219e0a1

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