MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf. 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: 15

Intelligence 15 IOCs YARA 4 File information Comments

SHA256 hash:	593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf
SHA3-384 hash:	afc62b6a4761baedb0fb23e169d0a1dadec59a2fc83b732ffefca1a6ab1175407288f6c18015f439b4e99ad4889e94fb
SHA1 hash:	9f65dd52a2c10b631bcba61acc3c9328ff96eb19
MD5 hash:	2e181c3c4d4931c96c895790eea51abc
humanhash:	lithium-batman-batman-saturn
File name:	Debit note Jan-Jul 2024.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	799'232 bytes
First seen:	2024-08-21 17:57:09 UTC
Last seen:	2024-08-21 19:13:51 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	21371b611d91188d602926b15db6bd48 (61 x Formbook, 23 x AgentTesla, 20 x RemcosRAT)
ssdeep	12288:asHzOUNUSB/o5LsI1uwajJ5yvv1l2JwrG/r7aNKR9HToSUYePAKHz:NiUmSB/o5d1ubcvuVmNKDoSUYeIgz
Threatray	2'913 similar samples on MalwareBazaar
TLSH	T12405235669C0DC89D22273BAC4B2DCA597E6B631EF943B55ABC0F6AFB8313805403D1D
TrID	39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6) 38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 7.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.5% (.EXE) Win32 Executable (generic) (4504/4/1) 2.9% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	cocaman
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

404

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Debit note Jan-Jul 2024.exe

Verdict:

Suspicious activity

Analysis date:

2024-08-21 18:19:05 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/cf0d8d04-6d7a-4d7a-a8e5-dbcc64e4f3da

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Trojan.Win32.AgentTesla.13683.23123.UNOFFICIAL

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66c62a70b2a4681a72966fc1

Tags:

Encryption Redcap

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Creating a file

Creating a process from a recently created file

Launching a process

Сreating synchronization primitives

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

autoit lolbin microsoft_visual_cc packed packed packed redcap shell32 upx

Link:

https://www.filescan.io/uploads/66c62aaccc3833d9d09ab693/reports/94ee289c-7c3d-45ff-aef5-10b9416a000e/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf

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.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/676c754a-af3f-4e0b-83c0-0910da50d948

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1496874

Signature

AI detected suspicious sample

Binary is likely a compiled AutoIt script file

Drops VBS files to the startup folder

Found API chain indicative of sandbox detection

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Drops script at startup location

Sigma detected: WScript or CScript Dropper

Switches to a custom stack to bypass stack traces

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf/

Threat name:

Win32.Trojan.Strab

Status:

Malicious

First seen:

2024-08-21 12:23:52 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

16 of 38 (42.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=le6uv4msft3634uqroudb7b3utg46up4aiz744tyhtmdmjb7x3hq._file

Verdict:

malicious

Label(s):

formbook

Formbook

867b98b3220ca96c65920c77d29a58e7ad4d3446db14ec334027c0400577e9f4

Formbook

a5edb017a2c0bf9834ff392e81d47ed90dade6e41c0549a8b3e9522e76d2c8c2

Formbook

c10f72e90f08921781cab13aa7d3a9d21c961cf97f46590eed4c1cbc6ebc1d66

Formbook

ccc6905f505b5e8c74c51e4774d278e9dadbd2c3238c0345db82f251070542af

Formbook

d6e12ca72ee501a41c85d8aeee6ee15bd6f203622a3fd875996bebb4115fb404

Formbook

ee596cf029dc09743a0db9f7d08c90800e77f91a81f558526216702e425d0f98

Formbook

f76b2b03f3bcae16946cc4df5c6e8f0c960c415c38279a170e2dbf9ebcbd31f7

Formbook

fac6b0f37747e1764dd47ca17170bb6639bb9404d204f02ddd5df118aecf7c4d

Formbook

ffd3edf7463b0935071c49b75cf9c9b63720f1e114084bce2747ba6578e6e83c

Formbook

+ 2'903 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery upx

Link:

https://tria.ge/reports/240821-wj5y7swdnk/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

AutoIT Executable

Suspicious use of SetThreadContext

Drops startup file

Executes dropped EXE

Loads dropped DLL

UPX packed file

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/5b6e8402-124b-4cb7-8b7a-c516feb2c12a

Unpacked files

SH256 hash:

a733c718bc86efb4dd0bc2f6003442637844451bbcf516ba0347300751ca672e

MD5 hash:

c7a95d6083a747e77534fe4d3a834e43

SHA1 hash:

ec7c51b46c3e2e3cfe8d5caaf5f5169c4cdca4a2

Detections:

win_formbook_g0

win_formbook_w0

Link:

https://www.unpac.me/results/9ef982ac-ceb3-46c1-be28-ffa464a77c66/

Parent samples :

593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf
2b2814cc30915dd6022bf80353b6e37bdabd379c351fd2e201cd3ee53621b147
3666991ba9b1b0ab338f41c37c0bfe3a8ae0fbfbde9820679a76362a610a0b23
d662f78e5e0c62cdc866836476cc59a0f26edd95d9e14fd2f246792c39f44096
17a478564c4eb41b217ae131ab1b433278bb60bd0d4b0f876f602d71336abae3
3fe4c784dfb841053360622561788dacfc8e4b81567bc461e4cd33e61d2d1e64
e38d7e764bae9be6ef464c001dc3784c28d165bff06c390ef600d785ec1871c1

SH256 hash:

b56ca9d855c924787ee2fc975458503b38c2cdc2990386bc1aba61372ba4a5f0

MD5 hash:

70b61828deeb6bc00745fe9f4d283437

SHA1 hash:

f2fb66e2c0311841603dbf3220a11ea4b84a8ea1

Link:

https://www.unpac.me/results/9ef982ac-ceb3-46c1-be28-ffa464a77c66/

SH256 hash:

257537162f1b1a170fd59ebef51435c753c0bb1076a3a631a6cca8a18fb80df6

MD5 hash:

203a31c7ca57989f8f8dc9e8e30d9804

SHA1 hash:

960dee74756512bc305242ba596ca03790dbc3d3

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/9ef982ac-ceb3-46c1-be28-ffa464a77c66/

SH256 hash:

593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf

MD5 hash:

2e181c3c4d4931c96c895790eea51abc

SHA1 hash:

9f65dd52a2c10b631bcba61acc3c9328ff96eb19

Link:

https://www.unpac.me/results/9ef982ac-ceb3-46c1-be28-ffa464a77c66/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/593d4af1922c/report/overview.html

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/593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf

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:	pe_detect_tls_callbacks Create hunting rule

Rule name:	UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser Create hunting rule
Author:	malware-lu

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

File information

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

Malspam

Formbook

zip 610297907bb67a93834cbb1c54f2342062179de5a10209f43f50d5273d41e776

Formbook

exe 593d4af1922cf7edf2908ba830fc3ba4cdcf51fc0233fe72783cd836243fbecf

(this sample)

Delivery method

Other

Dropped by

SHA256 610297907bb67a93834cbb1c54f2342062179de5a10209f43f50d5273d41e776

Dropped by

MD5 beea18d8e58806e38908b1e00bbacf37

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::GetAce
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::timeGetTime
WIN_BASE_API	Uses Win Base API	KERNEL32.DLL::LoadLibraryA

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