MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317. 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: 9

Intelligence 9 IOCs YARA 20 File information Comments

SHA256 hash:	cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317
SHA3-384 hash:	308122dbeb6948130e3a2a2cb6aac99c7e96528fb1ce6c91a71fdbef56a7d46876d7397c087a630f97265431763fbabc
SHA1 hash:	5994d3855a1006314db68780b802c964aa7b9f16
MD5 hash:	ea95b4d0c8a74d3337cbb59fa1cf4f3e
humanhash:	pennsylvania-king-apart-william
File name:	Halkbank_Ekstre_20231003_081214_543422.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	611'840 bytes
First seen:	2023-10-03 18:16:09 UTC
Last seen:	2023-10-03 18:38:39 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep	12288:8MYnQ3j67SESV1eXl8OhA90pVh/3d//VBBNhk37OU/sBMa8yMg9cFHP6Y15+LzNM:8BVVjsb0BMIA4atVRR
Threatray	5 similar samples on MalwareBazaar
TLSH	T182D4F18437F69515F7FE8B324DF2CA884774A8233711CB1E5C96A7AD4A323864640F6A
TrID	63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter	abuse_ch
Tags:	exe FormBook geo Halkbank TUR

Intelligence

File Origin

# of uploads :

# of downloads :

293

Origin country :

Vendor Threat Intelligence

Detection(s):

SecuriteInfo.com.Trojan.Inject4.61718.10702.28295.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Gathering data

Verdict:

Malicious

Labled as:

Zusy.Generic

Link:

https://www.hybrid-analysis.com/sample/cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317

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:

Unknown

Link:

https://analyze.intezer.com/analyses/05925f4c-2087-4782-88af-9f2121be4339

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

84 / 100

Link:

https://www.joesandbox.com/analysis/1318947

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

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317/

Threat name:

Win32.Trojan.Zusy

Status:

Malicious

First seen:

2023-10-03 12:27:13 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

15 of 36 (41.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z3horctwc7tuvfg2mktdbndvbf4f6lin2rn24iapxi3wsfpp6mlq._file

Verdict:

malicious

Label(s):

formbook

Formbook

8bfbe6c64b3e9bb5ea1eef4bd87874cf7c9521eb55aeb5c0becee6c06ebd5d69

Formbook

a3e03018e2dba7a61cd424c3b09864decf28815e7a3d84187f68ebaa395de908

Formbook

efb834b38792a7c5f000b0683aa6fb5999fd2c0d6dfda9ba417f990fbe1041b5

Formbook

f5970e4e030d40597a3f67287136f2044c51354e333008c8455c668622ddbfd1

Formbook

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://tria.ge/reports/231003-ww16sagf53/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Unpacked files

SH256 hash:

162a946816a425a6fbd720474232285b352bf83cb16c7a65edbd1bd281615168

MD5 hash:

c35fb6c6d0c832b80007e7d894d8aedf

SHA1 hash:

caf8f365a0015485e6c7f29fb2f57b0a312cee2a

Link:

https://www.unpac.me/results/e6331686-dce4-4120-a566-6ff02dead7c9/

SH256 hash:

e9cfda5e815e0cc4abd0bd1b033a456d99a7c12e6809a4cd90a6aa066269dcba

MD5 hash:

7e10d04f96e992dc2ac2c238033637bc

SHA1 hash:

0dcb97db75c11256f6f0f374e19fad6ddb4f65db

Link:

https://www.unpac.me/results/e6331686-dce4-4120-a566-6ff02dead7c9/

SH256 hash:

310ac593e5ccd1cacc952a1876803bce665acbca842198ac3a37e7a9d037cdf9

MD5 hash:

e0969aa6f05eb60d0ddc0b983a10f1cb

SHA1 hash:

d6a2c1fa24d2bffdda383cd693dc2db2077d6977

Link:

https://www.unpac.me/results/e6331686-dce4-4120-a566-6ff02dead7c9/

SH256 hash:

198a65f6a3f780f1a022f030629e8561c31cc555a113f570a566d40d1ee56a05

MD5 hash:

9b3a1b5d3ffe9fb9db6c5aaefa1ae076

SHA1 hash:

0da05e4c72430da0d061a02cd6cf50c41e6bd83a

Link:

https://www.unpac.me/results/e6331686-dce4-4120-a566-6ff02dead7c9/

SH256 hash:

cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317

MD5 hash:

ea95b4d0c8a74d3337cbb59fa1cf4f3e

SHA1 hash:

5994d3855a1006314db68780b802c964aa7b9f16

Link:

https://www.unpac.me/results/e6331686-dce4-4120-a566-6ff02dead7c9/

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

Threat name:

iSpy Keylogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317

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:	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:	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 cecee88a7617e74a94da62a630b47509785f2d0dd45bae200fba376915eff317

(this sample)

Delivery method

Distributed via e-mail attachment

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