MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f. 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: 8


Intelligence 8 IOCs YARA 9 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f
SHA3-384 hash: 65c35516d4430eea7d09569c3bf8908af6d141daa8ebd23015f05ea42d1bbf8ec3507eb81650972cc224cb0a5a3cd9d0
SHA1 hash: 58267bc70fd06d2eca14b5971505f72d9ce7b748
MD5 hash: 6760d6b55a887932149e5d7c36412061
humanhash: skylark-low-washington-south
File name:6760d6b55a887932149e5d7c36412061
Download: download sample
Signature RustyStealer
Create hunting rule
File size:1'786'880 bytes
First seen:2022-04-18 20:25:15 UTC
Last seen:2023-08-27 08:46:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ab5bf75a974028b49cb6651948f2a10b (1 x RustyStealer)
ssdeep 49152:Vtotzjm6gRgtBTj1nSe35+nO1lCcR9jtjLKNHC3:Szju6f1nSekKPps
TLSH T1CC8533C963D15649ED1E97764FA327A10A42E3BEA67A3435F88CC5ADC3053B2074C4BB
TrID 64.7% (.EXE) UPX compressed Win64 Executable (70117/5/12)
25.0% (.EXE) UPX compressed Win32 Executable (27066/9/6)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.8% (.EXE) OS/2 Executable (generic) (2029/13)
1.8% (.EXE) Generic Win/DOS Executable (2002/3)
Reporter zbetcheckin
Tags:exe RustyStealer

Intelligence

File Origin
# of uploads :
4
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f.zip
Verdict:
No threats detected
Analysis date:
2022-04-18 20:27:39 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/09e9b37d-5390-4828-ad8e-2d4f92b4934e

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/264431/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39510159.2575.32485.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Changing a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug greyware packed trickbot wacatac
Link:
https://www.filescan.io/uploads/625dc95deab80a7a6c3b1534/reports/af2e1b4b-b0c3-42f4-92c3-c588fdf8fa42/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/84e09295-c0cf-4c84-844e-ad70cf855edd
Result
Threat name:
Rustbot
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/978432
Signature
Antivirus / Scanner detection for submitted sample
Connects to a pastebin service (likely for C&C)
Found many strings related to Crypto-Wallets (likely being stolen)
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries temperature or sensor information (via WMI often done to detect virtual machines)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Instant Messenger accounts or passwords
Uses the Telegram API (likely for C&C communication)
Yara detected Rustbot
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f/
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2022-04-17 14:48:33 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pu77uhssspuujlfnd75f65ilxmzatcesqfuxita6nh6go5q7gv7q._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
upx
Link:
https://tria.ge/reports/220418-y7txyshad3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Legitimate hosting services abused for malware hosting/C2
Unpacked files
SH256 hash:
7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f
MD5 hash:
6760d6b55a887932149e5d7c36412061
SHA1 hash:
58267bc70fd06d2eca14b5971505f72d9ce7b748
Link:
https://www.unpac.me/results/917a49c7-aa5f-45d1-a90d-91e5635f2bcd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f

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:grakate_stealer_nov_2021
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_Discord_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Discord tokens regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SQLQuery_ConfidentialDataStore
Create hunting rule
Author:ditekSHen
Description:Detects executables containing SQL queries to confidential data stores. Observed in infostealers
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
Rule name:shad0w_beacon_16June
Create hunting rule
Author:SBousseaden
Description:Shad0w beacon compressed
Reference:https://github.com/bats3c/shad0w
Rule name:SUSP_Websites
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects the reference of suspicious sites that might be used to download further malware

File information

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

Web download

RustyStealer

Executable exe 7d3ffa1e5293e944acad1ffa5f750bbb320988928169744c1e69fc67761f357f

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2152953/
Cape
Cape
https://www.capesandbox.com/analysis/264431/

Comments


Avatar
zbet commented on 2022-04-18 20:25:22 UTC

url : hxxp://190.123.44.138/myapps_x64.exe