MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5
SHA3-384 hash: 7aefffa64f3ba152a664ac6fa71403cb237cb9563b29453da07767e1226ad7555b804aecfd85943ff846589d234cafa0
SHA1 hash: d0a7ac7442bde3bc34b836036f5fd69ffbfb85f0
MD5 hash: 9bd1cc9b027a4420d6e4f780c50af93c
humanhash: summer-bacon-eight-nevada
File name:SecuriteInfo.com.Variant.Fragtor.329378.10539.8949
Download: download sample
Signature RustyStealer
Create hunting rule
File size:2'173'952 bytes
First seen:2023-07-31 09:36:01 UTC
Last seen:2023-07-31 10:30:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b41abaa038d8b27317c2ba6ce503cfa5 (1 x RustyStealer)
ssdeep 49152:a5eNQ7HYLiM2DV9Dy+B5edHCxnaEBgKwNVQ:A1VMyDF5xna
TLSH T1A1A57C45FD828E67C8BB6A7014AFF339C635890C4717D717EF9A5D20BA5B3201E9824E
TrID 36.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
19.4% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
15.4% (.SCR) Windows screen saver (13097/50/3)
7.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
5.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter SecuriteInfoCom
Tags:exe RustyStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
317
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
819cebc553434a1b12318d80f63ebd96.exe
Verdict:
Malicious activity
Analysis date:
2023-07-31 07:32:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/858cc132-f516-40c8-9c02-d8476affbf27

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/439395/
Detection(s):
SecuriteInfo.com.Variant.Fragtor.329378.10539.8949.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Running batch commands
Launching a process
DNS request
Sending a custom TCP request
Moving of the original file
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm control expand lolbin masquerade packed remote
Link:
https://www.filescan.io/uploads/64c780883d0bb8484a89be80/reports/65f67082-c29d-4d3d-9005-79472e2de369/overview
Verdict:
Malicious
Labled as:
Fragtor.Generic
Link:
https://www.hybrid-analysis.com/sample/e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5
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/480aca0d-4861-4209-98b4-f02365819408
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad.spyw
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1283075
Signature
Adds a directory exclusion to Windows Defender
Contains functionality to modify clipboard data
Moves itself to temp directory
Multi AV Scanner detection for submitted file
Uses schtasks.exe or at.exe to add and modify task schedules
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1283075 Sample: SecuriteInfo.com.Variant.Fr... Startdate: 31/07/2023 Architecture: WINDOWS Score: 64 35 Multi AV Scanner detection for submitted file 2->35 7 SecuriteInfo.com.Variant.Fragtor.329378.10539.8949.exe 1 2->7         started        process3 dnsIp4 31 github.com 140.82.121.4, 443, 49681 GITHUBUS United States 7->31 33 raw.githubusercontent.com 185.199.111.133, 443, 49682 FASTLYUS Netherlands 7->33 37 Moves itself to temp directory 7->37 39 Contains functionality to modify clipboard data 7->39 41 Adds a directory exclusion to Windows Defender 7->41 11 cmd.exe 1 7->11         started        14 powershell.exe 19 7->14         started        16 WerFault.exe 3 9 7->16         started        19 WMIC.exe 1 7->19         started        signatures5 process6 dnsIp7 43 Uses schtasks.exe or at.exe to add and modify task schedules 11->43 21 conhost.exe 11->21         started        23 schtasks.exe 1 11->23         started        25 conhost.exe 14->25         started        29 192.168.2.1 unknown unknown 16->29 27 conhost.exe 19->27         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5/
Threat name:
Win32.Spyware.Rustystealer
Create hunting rule
Status:
Suspicious
First seen:
2023-07-31 07:57:38 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
11 of 24 (45.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4zmidkt7nqzwgz3wbcntlbg37cq4dz6qjxso2kdlwdk2kcvhnh2q._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://tria.ge/reports/230731-lkxdcafa8w/
Behaviour
Creates scheduled task(s)
Detects videocard installed
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Legitimate hosting services abused for malware hosting/C2
Unpacked files
SH256 hash:
e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5
MD5 hash:
9bd1cc9b027a4420d6e4f780c50af93c
SHA1 hash:
d0a7ac7442bde3bc34b836036f5fd69ffbfb85f0
Link:
https://www.unpac.me/results/f75ef682-f96c-433b-9bd7-ee5a5bc15843/
Malware family:
XMRig
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e65881aa7f6c/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/e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5

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:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
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 e65881aa7f6c33636776089b3584dbf8a1c1e7d04de4ed286bb0d5a50aa769f5

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2693285/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2693293/
Cape
Cape
https://www.capesandbox.com/analysis/439395/

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