MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf. 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: 12

Intelligence 12 IOCs YARA 23 File information Comments

SHA256 hash:	ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf
SHA3-384 hash:	11455548698cf32e239097937c33ebef5cc08dfcb46ace17ec0cc47b794cf55fa7d91a3e655ae9d190659ad5d5856b65
SHA1 hash:	ec3a6137aedb5c7b056d51ce653f10c094a4ef14
MD5 hash:	35092b310e4d2832d81b8f5d9ef1e094
humanhash:	nevada-delaware-music-winner
File name:	r1210DEC-GIG.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	642'048 bytes
First seen:	2023-12-11 13:38:11 UTC
Last seen:	2023-12-12 14:42:04 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:ApEmQepZshyxfbCErYeNWDUuZv7IgKM7Uvj5Z+62Tp1Lnly4hdw:ApE0bCcWDUynKM7H31Xy/
TLSH	T1DBD4129626392BBBDCBAF3F10A1331440771001F506AFB5D1DCAE4FE0AB5F14AA91A47
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) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter	FXOLabs
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

244

Origin country :

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/465197/

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Сreating synchronization primitives

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/65771457855eb2633d66ba8a/reports/f4f501a0-04a2-4295-b376-a3c5aa6045df/overview

Verdict:

Malicious

Labled as:

MSIL/GenKryptik_AGeneric.AIO trojan

Link:

https://www.hybrid-analysis.com/sample/ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf

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/a7e6ffe7-2a6e-4569-b7be-195e6c68a6f5

Result

Threat name:

FormBook, zgRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1360027

Signature

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

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Performs DNS queries to domains with low reputation

Queues an APC in another process (thread injection)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected FormBook

Yara detected zgRAT

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2023-12-10 22:18:15 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 23 (82.61%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=5vhpn2s3zja7kd4tacymaut76bfbxnkbkaqc23rvpkjego62i3hq._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

zgrat

Score:

10/10

Tags:

family:zgrat rat

Link:

https://tria.ge/reports/231211-q4x67shfe2/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Detect ZGRat V1

ZGRat

Unpacked files

SH256 hash:

96adebe2d3724b09c5f8d594729bbf9b084d9b6dff3398c5e1c7d79d0ca642e3

MD5 hash:

66177a12d0bc968626c1716133a08e46

SHA1 hash:

df395156d246854650801b46607b4a1b2ba47721

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

SH256 hash:

a0f01eaf0772e8a22deec7deaffe23c78790261a8e917005e7796e12f4b89b6d

MD5 hash:

2d194f56ed6fd1e15d977f873b63df83

SHA1 hash:

adf44b215e43477d8e70b942c528a83df3837c7b

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

SH256 hash:

dfdad54c55a25ad4d9d7be4f775d279d0308f2baf1febb45dba331bc53d31239

MD5 hash:

ebecac6959105a66087f333840f2360c

SHA1 hash:

a25c97dbdc9df4b41d0b8fba617a8e4abdc7ddc8

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

SH256 hash:

c34dfbc328de247d25d670c3b7853f1dddd2ec2607d5dbb0480743b45a15ea64

MD5 hash:

85b87384830444e6ab86a4a692ce96cc

SHA1 hash:

0d7d4614cf31d27e68ebf48e76fb1d308cc08152

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

SH256 hash:

7d968ee2ec1bf4c1bf9228f8f2794675de987ac83bac5f8c608963526a435ed3

MD5 hash:

1845455753429aeee7c7762ef407d8ea

SHA1 hash:

050f55f9458f419c8fec7b31cf80542849d33a76

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

SH256 hash:

ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf

MD5 hash:

35092b310e4d2832d81b8f5d9ef1e094

SHA1 hash:

ec3a6137aedb5c7b056d51ce653f10c094a4ef14

Link:

https://www.unpac.me/results/e5bde3fc-0042-41f6-924d-d528157da56a/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ed4ef6ea5bca/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf

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:	Formbook Create hunting rule
Author:	kevoreilly
Description:	Formbook Payload

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:	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:	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_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

exe ed4ef6ea5bca41f50f9300b0c0527ff04a1bb54150202d6e357a92433bda46cf

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/465197/

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