MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480. 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: b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480
SHA3-384 hash: 3d05cb30d96ac9d99b5718cc490782dcfb3a491d53e89899fa2e2af5f7f3e9c1db32b32bd2c6a2bb3033eea557adb0c6
SHA1 hash: d1bfc6f915e9c3bc2258d6a7b5ec7bd30dfdf6f8
MD5 hash: d93a41e0bb949cc347179ab09ee402a4
humanhash: sweet-freddie-ack-beer
File name:Paid Invoices pdf.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:301'979 bytes
First seen:2023-09-27 06:27:33 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:jmdII4R485qqhjGSXmP+wN0rd+AOMctemboXrRChniJT1fnsqywEBAyip:jNHJhSSsNYjOvee4IVIT1/slFBAyip
TLSH T1D55423A919E845BE24D2266C8372E87474971ECFA07DD8DB94C11FE094F82B72CB095F
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook INVOICE payment zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Angela Yaung <jenny.han@firebirdref.com>" (likely spoofed)
Received: "from [81.161.229.115] (unknown [81.161.229.115]) "
Date: "27 Sep 2023 06:15:04 +0200"
Subject: "RE: RE: Re: Payment for orders"
Attachment: "Paid Invoices pdf.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
83
Origin country :
CH CH
File Archive Information

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

File name:Paid Invoices 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.Foxhole.Zip_fs3391.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20230927-0235.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/6513cb75935d595cf27666d8/reports/eb8a349f-df5f-4a2c-a5dc-ccd4bb60b9e8/overview
Verdict:
Malicious
Labled as:
Mal/DrodZp
Link:
https://www.hybrid-analysis.com/sample/b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480
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/b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480/
Threat name:
Win32.Trojan.NSISInject
Create hunting rule
Status:
Malicious
First seen:
2023-09-27 04:09:38 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wel3ydgdhdvnbjl5wxnmxxz62iqqwlrjbivsikhdz2wvhzeaesaa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230927-j1ky5sad88/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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: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
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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: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

zip b117bc0cc338ead0a57db5dacbdf3ed2210b2e290a2b2428e3cead53e4802480

(this sample)

Formbook

Executable exe dc5eb730f1df702be89804ca234b60fec5fed7b6ed8d6c719f7006f40775f888

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

Comments