MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30. 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 18 File information Comments

SHA256 hash:	cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30
SHA3-384 hash:	1b5d7c22b2d4c5f44b899cac279d70d04d2083776dbf36f51fae32d9b0c3c164444bca83c518f4c8ddaff42a75785a8e
SHA1 hash:	733846f769a61f774e786846c3c5da51250dbc90
MD5 hash:	dfd0f762fd0542dfb8c6155cff5c4e3c
humanhash:	snake-blue-oregon-beryllium
File name:	Documento de solicitacao de pedido No 158645080.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	655'360 bytes
First seen:	2024-03-03 17:53:22 UTC
Last seen:	2024-03-03 19:27:02 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep	12288:3/ScVvTEazpgOSN2WURS4EDUugrUuU2couM84IgpFrggaIJf9npIe:vSOFzpgOPP6OdUVZP9s2IJlnX
Threatray	901 similar samples on MalwareBazaar
TLSH	T19AD423207B4C5E33CB2E257A69F1234603B013A7D75AD3DDAEAD47AAC0867CD5B42352
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	f0a2aae48ae4e29a (11 x AgentTesla, 3 x Formbook, 1 x PureLogsStealer)
Reporter	abuse_ch
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

421

Origin country :

Vendor Threat Intelligence

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Launching a process

Launching cmd.exe command interpreter

Setting browser functions hooks

Adding an exclusion to Microsoft Defender

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

keylogger packed

Link:

https://www.filescan.io/uploads/65e4b93caa3c088d605bf377/reports/1005b29c-876c-40e9-b62c-009c4ba1c21c/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

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.

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/65e5976b-3a9f-475a-abb5-425b0879c8c6

Result

Threat name:

FormBook, PureLog Stealer

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1402193

Signature

.NET source code contains method to dynamically call methods (often used by packers)

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Adds a directory exclusion to Windows Defender

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found malware configuration

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Modifies the context of a thread in another process (thread injection)

Modifies the prolog of user mode functions (user mode inline hooks)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Snort IDS alert for network traffic

System process connects to network (likely due to code injection or exploit)

Tries to detect virtualization through RDTSC time measurements

Yara detected AntiVM3

Yara detected FormBook

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2024-02-27 15:30:54 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z5zczlofzwah6riozvlxqxcjus6rscmxbo4ihlnmzlp7x2kfzmya._file

Verdict:

malicious

Label(s):

formbook

Formbook

4a487c4228b0a8d316809fda3510b6153f392d4e80622293efa6c8f2c4f1cd83

Formbook

513a7cb263c8466f960334e79d271ec9de05cd700f2e48061f997d7500d0734a

Formbook

5f1da6912a7c832726ad587d5b8cc3480e931d1f7997603a0a391b422b1013fd

Formbook

9c051c1f0938d57caab88ddf7c68456838889f84907436aa6dbf50b1e35ea6ab

Formbook

c365a6886581c5afdc2bba03f6b8dd4af723c570002d359af8cafa1c145e4adb

Formbook

cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

Formbook

d93058ce47215773bfed7fc6a36c4991a4d3278ce71cfd6ec23d0c3b74566798

Formbook

+ 891 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:pz08 rat spyware stealer trojan

Link:

https://tria.ge/reports/240303-wgv18adf7w/

Behaviour

Suspicious behavior: EnumeratesProcesses

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

Checks computer location settings

Formbook payload

Formbook

Unpacked files

SH256 hash:

24e196036554f430cfb19fb9343e4d2ee0f51129c1b270974ae27bd6581cf33b

MD5 hash:

261de885397be969e26e090bdc497544

SHA1 hash:

f10620c94b6d588a0a142904bc29dd32aa36ff93

Detections:

FormBook

win_formbook_w0

win_formbook_auto

win_formbook_g0

Formbook

Link:

https://www.unpac.me/results/d78d9782-ba1f-4670-844f-c4396263e477/

Parent samples :
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SH256 hash:

72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628

MD5 hash:

2a8240bba06e832ee5d136a0a7e5b5b9

SHA1 hash:

de49d9b33004a4a622a4279b3ee2b3e3e5cd012b

Link:

https://www.unpac.me/results/d78d9782-ba1f-4670-844f-c4396263e477/

SH256 hash:

9d9521aca0cd85e8ebcb898cb2bf14799e46015579290b99ef5a1f9f3b84127e

MD5 hash:

08995904e5d69ab65f69e8d2298a8915

SHA1 hash:

ba0459c70a7e45aac67479a6158462d765754b24

Link:

https://www.unpac.me/results/d78d9782-ba1f-4670-844f-c4396263e477/

SH256 hash:

0190398cd1ee7458b2ad4de5bae10989d4f63420c848cc3c80a3c69296dc383f

MD5 hash:

970503effbe2981f2044430e63d4fb4e

SHA1 hash:

5a4c26491580bd7f79c8a4805ef36e9ecf3f1556

Link:

https://www.unpac.me/results/d78d9782-ba1f-4670-844f-c4396263e477/

SH256 hash:

cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

MD5 hash:

dfd0f762fd0542dfb8c6155cff5c4e3c

SHA1 hash:

733846f769a61f774e786846c3c5da51250dbc90

Link:

https://www.unpac.me/results/d78d9782-ba1f-4670-844f-c4396263e477/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cf722cadc5cd/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/cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

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:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	NET Create hunting rule
Author:	malware-lu

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

Rule name:	pe_imphash Create hunting rule

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

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:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

File information

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

Malspam

Formbook

exe cf722cadc5cd807f450ecd57785c49a4bd1909970bb883adaccadffbe945cb30

(this sample)

Delivery method

Distributed via e-mail attachment

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

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