MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f5eeb6d47777367d369168001a0314738c6ac5f7d55f537ea00648e883d97a2. 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

ArkeiStealer

Vendor detections: 9

Intelligence 9 IOCs YARA 3 File information Comments

SHA256 hash:	4f5eeb6d47777367d369168001a0314738c6ac5f7d55f537ea00648e883d97a2
SHA3-384 hash:	559c460d0527474141b2dcdaf5a8d2707e95a1d632256cb982fd9ce53c8aea1b5ec9d594090b8446d4402af6d1385794
SHA1 hash:	17e86d8f5c9ccff329d93df6af80c17422c1837c
MD5 hash:	036adb8395038b566c990ef4006f2cf5
humanhash:	princess-xray-uniform-magnesium
File name:	SecuriteInfo.com.Trojan.Inject4.6124.12096.10839
Download:	download sample
Signature	ArkeiStealer Create hunting rule
File size:	604'160 bytes
First seen:	2020-12-07 22:35:49 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:05iejeD+bcp5C7F8X0Gncn16dwh5XEUDJBtsxTz:0KD+Q+7F0Zc16ih5X93t6
TLSH	ECD4AD353A942AA3D2BEC7F254607250CFB5662F696EE2DC6CC311DE45F1F204989E23
Reporter	SecuriteInfoCom
Tags:	ArkeiStealer

Intelligence

File Origin

# of uploads :

# of downloads :

149

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/107127/

Detection(s):

SecuriteInfo.com.Trojan.Inject4.6124.12096.10839.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

Creating a window

Unauthorized injection to a recently created process

Creating a file

DNS request

Deleting a recently created file

Reading critical registry keys

Replacing files

Delayed writing of the file

Running batch commands

Creating a process with a hidden window

Using the Windows Management Instrumentation requests

Searching for the window

Connection attempt to an infection source

Stealing user critical data

Launching a tool to kill processes

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.

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4f5eeb6d47777367d369168001a0314738c6ac5f7d55f537ea00648e883d97a2/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2020-12-07 17:33:22 UTC

AV detection:

24 of 29 (82.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=j5pow3kho5zwpu3jc2aadibri44mnlc7pvk7kn7kabsi5cb5s6ra._file

Result

Malware family:

oski

Score:

10/10

Tags:

family:oski discovery infostealer spyware

Link:

https://tria.ge/reports/201207-6tbhwdfdae/

Behaviour

Checks processor information in registry

Kills process with taskkill

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

JavaScript code in executable

Loads dropped DLL

Reads user/profile data of web browsers

Oski

Unpacked files

SH256 hash:

4f5eeb6d47777367d369168001a0314738c6ac5f7d55f537ea00648e883d97a2

MD5 hash:

036adb8395038b566c990ef4006f2cf5

SHA1 hash:

17e86d8f5c9ccff329d93df6af80c17422c1837c

Link:

https://www.unpac.me/results/10cc727d-eff4-4a23-ba17-f446bec76cb2/

SH256 hash:

c88a66cbf00b12c88e2b970b8bc220e970e8465e56098ced24e97d42be901b94

MD5 hash:

a60401dc02ff4f3250a749965097e13f

SHA1 hash:

3f22d28fd765f831084cb972a8bd071e421c26a1

Link:

https://www.unpac.me/results/10cc727d-eff4-4a23-ba17-f446bec76cb2/

SH256 hash:

4507d97b072d5cdd027c17421356714f40c543ac54a4e24b4d93aac38bc7bcc3

MD5 hash:

11f18f7b8d3fb315e915d20d0bf835da

SHA1 hash:

cb15b04bc64eaa9c3196fa623a1135ebd6bcdfbd

Detections:

win_oski_g0

win_oski_auto

Link:

https://www.unpac.me/results/10cc727d-eff4-4a23-ba17-f446bec76cb2/

SH256 hash:

4ebabba5f60ba550a4ff96334e172d9bc485cedad295600633885d3eb2715e6b

MD5 hash:

9605612faaaeded279b1c953483cf5eb

SHA1 hash:

ea3c35ca0ef778e5ceff06651fe58dbb7b3007ab

Link:

https://www.unpac.me/results/10cc727d-eff4-4a23-ba17-f446bec76cb2/

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

Threat name:

MassLogger

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4f5eeb6d47777367d369168001a0314738c6ac5f7d55f537ea00648e883d97a2

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:	SUSP_Reversed_Base64_Encoded_EXE Create hunting rule
Author:	Florian Roth
Description:	Detects an base64 encoded executable with reversed characters
Reference:	Internal Research

Rule name:	win_oski_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator