MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 367bc0a7c04f553518d060b4a121b9436b5af4a08de5d4df0dfcfde18c124900. 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

RustyStealer

Vendor detections: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	367bc0a7c04f553518d060b4a121b9436b5af4a08de5d4df0dfcfde18c124900
SHA3-384 hash:	a09ec052974f1b80c1f9256d23dcdee13f2bc9835f3e3365dfb0a68de8aae4dfc069a478803764479141b4d364b523f2
SHA1 hash:	d5ddb8cd7c34c925ec97357bdb146d46fdb0e4b3
MD5 hash:	b7b95a955cb12538953892152efe071f
humanhash:	sierra-iowa-apart-edward
File name:	b7b95a955cb12538953892152efe071f.exe
Download:	download sample
Signature	RustyStealer Create hunting rule
File size:	4'243'984 bytes
First seen:	2023-01-09 14:25:28 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1636ff872ecb38029f8efa214c6a0815 (1 x RustyStealer)
ssdeep	49152:1KHIXyWPW1xKzWIkS4X0fjrY7uUNiZqovh4Nkepc5pC7FW/M8C9yylJ/qBlD:Pyx1LW5jrY7zcZqtNke+WSCgylJiz
TLSH	T1A2167CE77AD266EDC66DC0BD8200BD3FAB9FF076071AF5924E59A1619E039C07D18B10
TrID	44.4% (.EXE) Win64 Executable (generic) (10523/12/4) 21.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 8.7% (.ICL) Windows Icons Library (generic) (2059/9) 8.5% (.EXE) OS/2 Executable (generic) (2029/13) 8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter	abuse_ch
Tags:	exe RustyStealer

Intelligence

File Origin

# of uploads :

# of downloads :

215

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

b7b95a955cb12538953892152efe071f.exe

Verdict:

Malicious activity

Analysis date:

2023-01-09 14:36:00 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/d0999528-d111-447c-8c87-6050b92fd426

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/351162/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Sending a custom TCP request

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-vm shell32.dll

Link:

https://www.filescan.io/uploads/63bc23fd0e926711fd7801fb/reports/0f244d99-0b15-4aef-9da0-bb4e9d69729a/overview

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/a583dee5-c8c3-4153-ac2c-97fb75bb7a78

Result

Threat name:

Unknown

Detection:

malicious

Classification:

evad

Score:

72 / 100

Link:

https://www.joesandbox.com/analysis/1148111

Signature

Found potential dummy code loops (likely to delay analysis)

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Queries temperature or sensor information (via WMI often done to detect virtual machines)

Query firmware table information (likely to detect VMs)

Tries to detect sandboxes / dynamic malware analysis system (registry check)

Uses schtasks.exe or at.exe to add and modify task schedules

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/367bc0a7c04f553518d060b4a121b9436b5af4a08de5d4df0dfcfde18c124900/

Threat name:

Win64.Trojan.Tasker

Status:

Malicious

First seen:

2023-01-09 02:17:20 UTC

File Type:

PE+ (Exe)

AV detection:

14 of 40 (35.00%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=gz54bj6aj5ktkggqmc2kcinzinvvv5farxs5jxyn7t66ddasjeaa._file

Result

Malware family:

n/a

Score:

9/10

Tags:

evasion themida trojan

Link:

https://tria.ge/reports/230109-rrvqzsee45/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks whether UAC is enabled

Checks BIOS information in registry

Loads dropped DLL

Themida packer

Executes dropped EXE

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/a8dd17e4-f88b-4f2f-8d05-d55fb46da603

Unpacked files

SH256 hash:

367bc0a7c04f553518d060b4a121b9436b5af4a08de5d4df0dfcfde18c124900

MD5 hash:

b7b95a955cb12538953892152efe071f

SHA1 hash:

d5ddb8cd7c34c925ec97357bdb146d46fdb0e4b3

Link:

https://www.unpac.me/results/68d8bbe8-b695-47be-bbe9-bcbcc65b6cab/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/367bc0a7c04f/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/367bc0a7c04f553518d060b4a121b9436b5af4a08de5d4df0dfcfde18c124900

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:	INDICATOR_EXE_Packed_Themida Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with Themida

Rule name:	pdb_YARAify Create hunting rule
Author:	@wowabiy314
Description:	PDB

Rule name:	Rustyloader_mem_loose Create hunting rule
Author:	James_inthe_box
Description:	Corroded buerloader
Reference:	https://app.any.run/tasks/83064edd-c7eb-4558-85e8-621db72b2a24