MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358. 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


GurcuStealer


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358
SHA3-384 hash: 4baaa121b91324b70e0279181fee05817ef478136ea29dc17b79a39b68e86baaa41a98ee230d21102533b942ceda209d
SHA1 hash: aaa19a9fa3652a1d39509aac28d3db7b95d276a2
MD5 hash: 5aa405d35131a36ce1647c6937d3e529
humanhash: vegan-early-monkey-mars
File name:5aa405d35131a36ce1647c6937d3e529
Download: download sample
Signature GurcuStealer
Create hunting rule
File size:36'864 bytes
First seen:2023-03-30 06:55:15 UTC
Last seen:2023-03-30 09:59:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:wtJHrFZuGtbhPAbCFRbPuJHHpXlKm/oAT1wdhMSWgU:wtJLFZuAbUcbPgHpXlKmgAT1wdh3U
TLSH T1FBF2E85573E8C736E0A84B36D9B257004BB4D7436B06DB0D6DCE619C1EC37C96283AAD
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter zbetcheckin
Tags:32 exe GurcuStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
setup.exe
Verdict:
Malicious activity
Analysis date:
2023-03-30 00:35:22 UTC
Tags:
loader smoke trojan rat redline amadey opendir
Link:
https://app.any.run/tasks/0aeb2d29-ac8c-44fe-80b3-89fcc4490d13

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/378688/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.25609.26592.4243.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Reading critical registry keys
Creating a window
DNS request
Sending an HTTP GET request
Sending a custom TCP request
Creating a file
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
comodo packed
Link:
https://www.filescan.io/uploads/64253283688c0e6397b3a33a/reports/185671dd-55ec-4329-bf34-da6a43a43ee0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358
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:
WhiteSnake
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0eaa488d-6a4c-48ae-a96c-c24d5edd94a0
Result
Threat name:
Gurcu Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1204891
Signature
Antivirus detection for URL or domain
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Self deletion via cmd or bat file
Tries to harvest and steal browser information (history, passwords, etc)
Uses ping.exe to check the status of other devices and networks
Uses the Telegram API (likely for C&C communication)
Yara detected Gurcu Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358/
Threat name:
ByteCode-MSIL.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-03-30 04:07:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wr7znotd62db546qp3ylyywzttsl3ae4pgrrehgd5uml5yvfcnma._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230330-hqcpcabc99/
Behaviour
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Checks computer location settings
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358
MD5 hash:
5aa405d35131a36ce1647c6937d3e529
SHA1 hash:
aaa19a9fa3652a1d39509aac28d3db7b95d276a2
Link:
https://www.unpac.me/results/2a0c4c47-c451-4d66-952e-3596bc00b545/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b47f96ba63f6/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/b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

GurcuStealer

Executable exe b47f96ba63f6861ef3d07ef0bc62d99ce4bd809c79a3121cc3ed18bee2a51358

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2590910/
Cape
Cape
https://www.capesandbox.com/analysis/378688/

Comments


Avatar
zbet commented on 2023-03-30 06:55:19 UTC

url : hxxp://193.233.20.36/lend/tmpBEB8.tmp.exe