MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3. 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: 13


Intelligence 13 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3
SHA3-384 hash: 9b0cf69e55bd9796a1581a55d7b6260dbf6d76d4a588ee1c67abb9b67aff1df8afe033a7d5a492c3b94464980a719276
SHA1 hash: 3c3cb763162523658118148c4c83723f1c43eefe
MD5 hash: d367dbc08b40198ffa3ccb0653345007
humanhash: nine-michigan-harry-ack
File name:d367dbc08b40198ffa3ccb0653345007.exe
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'189'824 bytes
First seen:2023-07-26 15:23:55 UTC
Last seen:2023-07-26 19:31:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ffb8ac336fad56417c421e8d5adcf9ff (1 x RustyStealer)
ssdeep 49152:iSK1y8MYZR/WXnbKRBKiaKKkkVWEjBKMpSo8nfN0:UM1ODyWEjBKWCfN0
Threatray 11 similar samples on MalwareBazaar
TLSH T1FBA55B43FA858AFAC09DC17883479332B635FC8C4B11B76B2B945A713D26BA05F5D398
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 :
2
# of downloads :
277
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d367dbc08b40198ffa3ccb0653345007.exe
Verdict:
Suspicious activity
Analysis date:
2023-07-26 15:31:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac1fbd7c-9064-432c-8662-fc6ab15bab65

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/434053/
Detection(s):
SecuriteInfo.com.Win32.Trojan-Downloader.Generic.NZTE82.14960.7899.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Launching a process
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Moving of the original file
Enabling autorun by creating a file
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3
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.
Malware family:
DeltaStealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d9a75cf9-d256-4db9-954b-5d7f80f45251
Result
Threat name:
Xmrig
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.mine
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1280423
Signature
Contains functionality to modify clipboard data
Found strings related to Crypto-Mining
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Moves itself to temp directory
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Xmrig
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected Xmrig cryptocurrency miner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1280423 Sample: 41pnBFusLV.exe Startdate: 26/07/2023 Architecture: WINDOWS Score: 100 45 Sigma detected: Xmrig 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Multi AV Scanner detection for dropped file 2->49 51 5 other signatures 2->51 7 41pnBFusLV.exe 2 2->7         started        process3 dnsIp4 39 api.telegram.org 149.154.167.220, 443, 49692 TELEGRAMRU United Kingdom 7->39 41 github.com 140.82.121.4, 443, 49693 GITHUBUS United States 7->41 43 raw.githubusercontent.com 185.199.108.133, 443, 49694 FASTLYUS Netherlands 7->43 37 C:\Users\user\AppData\Local\...\temp_file.bin, PE32+ 7->37 dropped 53 Moves itself to temp directory 7->53 55 Contains functionality to modify clipboard data 7->55 12 cmd.exe 1 7->12         started        15 WMIC.exe 1 7->15         started        17 tasklist.exe 1 7->17         started        19 37 other processes 7->19 file5 signatures6 process7 signatures8 57 Uses schtasks.exe or at.exe to add and modify task schedules 12->57 21 conhost.exe 12->21         started        23 schtasks.exe 1 12->23         started        25 conhost.exe 15->25         started        27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        31 conhost.exe 19->31         started        33 conhost.exe 19->33         started        35 34 other processes 19->35 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3/
Threat name:
Win64.Spyware.Rustystealer
Create hunting rule
Status:
Malicious
First seen:
2023-07-26 13:59:47 UTC
File Type:
PE+ (Exe)
AV detection:
12 of 24 (50.00%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qxab6kmkx3rt7wypoo4fk5s254mqvsqcd2e53syluoehtcpm57jq._file
Verdict:
malicious
Similar samples:
11004aff3ee4083623a7e01cb06438e1b8879e2d00cf2350c26fb1003125577d
RustyStealer
60a1499fbadda5bb1da2ee13994de117ddbc02e669644cbe3585c84f35937a49
RustyStealer
786cfe1759666fb139dcee757637e7c0d92586caaf6020eb60b455d7bd2251e8
RustyStealer
d4b8bb0d23cc76d722839af1760053357bc39708d9712af2a882019cbe696613
RustyStealer
e1dcadc94c7659b12eca375e35858bf68ea02a626078dd5e41eb9bede572417c
RustyStealer
e21288cc3c6a809ac4572f311b1a00b60674658165fa1ef9c46ec5d81ad62e76
RustyStealer
e8be5d6a1b9d5c0ba0f731f607234ab2834a322b8272b39997c4af23b626f659
RustyStealer
f60ee59dc9b055fa1d144a448f76fd85a68129c3a34dcda79a0a56adf38ce797
RustyStealer
+ 1 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:xmrig miner
Link:
https://tria.ge/reports/230726-ss225ade68/
Behaviour
Creates scheduled task(s)
Enumerates processes with tasklist
Suspicious behavior: LoadsDriver
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Legitimate hosting services abused for malware hosting/C2
Executes dropped EXE
Downloads MZ/PE file
XMRig Miner payload
xmrig
Unpacked files
SH256 hash:
85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3
MD5 hash:
d367dbc08b40198ffa3ccb0653345007
SHA1 hash:
3c3cb763162523658118148c4c83723f1c43eefe
Link:
https://www.unpac.me/results/82677ecb-7f02-44cd-9e5f-21d085836935/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/85c01f298abe/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/85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3

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

File information

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

Web download

RustyStealer

Executable exe 85c01f298abee33fdb0f73b855765aef190aca021e89ddcb0ba3887989ecefd3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2690335/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/434053/

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