MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861
SHA3-384 hash: b7de7de90ac73f4db37c59fd09938315e3d0224b128003ff30c750b9c893b4e99b0b282cb52c654db2fae76dd7c87833
SHA1 hash: 32fa75bddbc341415218283a734b6bd8e8d23d38
MD5 hash: cdba2f85dd885d8fc4877016c917b2e1
humanhash: london-kansas-nine-seventeen
File name:cdba2f85dd885d8fc4877016c917b2e1
Download: download sample
Signature GurcuStealer
Create hunting rule
File size:262'656 bytes
First seen:2023-08-29 17:58:22 UTC
Last seen:2023-08-29 21:37:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:QMZzx4t3P+Oqum37ZUr6dgZTlpF1aJ9bR0zuZEi:hx8PvqR7I6dgZT40S2i
Threatray 17 similar samples on MalwareBazaar
TLSH T12E44CF4CBBD5FB11E69F45B444A06364933492032142F74B3EDED8A56FE33C18A898BB
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 :
307
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cdba2f85dd885d8fc4877016c917b2e1
Verdict:
Malicious activity
Analysis date:
2023-08-29 18:00:50 UTC
Tags:
evasion whitesnake stealer
Link:
https://app.any.run/tasks/17e6301f-2c8f-4413-af76-26d30bd52197

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/445135/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.66.14359.14201.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
DNS request
Sending a custom TCP request
Creating a file in the %temp% directory
Moving a recently created file
Reading critical registry keys
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Creating a window
Unauthorized injection to a recently created process
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/64ee31e81d3a8c6c1217cb82/reports/08fb0a9a-6b37-44ac-932c-4b71cf3fe915/overview
Verdict:
Malicious
Labled as:
Trojan.Mardom.IN.Generic
Link:
https://www.hybrid-analysis.com/sample/24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861
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/344ccb6d-d3a3-49b5-9a98-7ad03a8175cd
Result
Threat name:
Gurcu Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1299762
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to capture screen (.Net source)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found Tor onion address
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
May use the Tor software to hide its network traffic
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Self deletion via cmd or bat file
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses known network protocols on non-standard ports
Uses ping.exe to check the status of other devices and networks
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected Generic Downloader
Yara detected Gurcu Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1299762 Sample: 7E8BlmnQXD.exe Startdate: 29/08/2023 Architecture: WINDOWS Score: 100 63 Found malware configuration 2->63 65 Antivirus detection for URL or domain 2->65 67 Antivirus / Scanner detection for submitted sample 2->67 69 8 other signatures 2->69 9 7E8BlmnQXD.exe 7 2->9         started        13 7E8BlmnQXD.exe 2 2->13         started        15 7E8BlmnQXD.exe 2 2->15         started        17 7E8BlmnQXD.exe 2->17         started        process3 file4 47 C:\Users\user\AppData\...\7E8BlmnQXD.exe, PE32 9->47 dropped 87 Found many strings related to Crypto-Wallets (likely being stolen) 9->87 89 Self deletion via cmd or bat file 9->89 19 cmd.exe 1 9->19         started        signatures5 process6 signatures7 75 Uses schtasks.exe or at.exe to add and modify task schedules 19->75 77 Uses ping.exe to check the status of other devices and networks 19->77 22 7E8BlmnQXD.exe 14 25 19->22         started        27 PING.EXE 1 19->27         started        29 conhost.exe 19->29         started        31 2 other processes 19->31 process8 dnsIp9 55 ip-api.com 208.95.112.1, 49721, 80 TUT-ASUS United States 22->55 57 api.telegram.org 149.154.167.220, 443, 49728 TELEGRAMRU United Kingdom 22->57 61 7 other IPs or domains 22->61 39 C:\Users\user\AppData\Local\...\zlib1.dll, PE32 22->39 dropped 41 C:\Users\user\AppData\Local\...\tor-real.exe, PE32 22->41 dropped 43 C:\Users\user\AppData\...\tor-gencert.exe, PE32 22->43 dropped 45 8 other malicious files 22->45 dropped 79 Antivirus detection for dropped file 22->79 81 Multi AV Scanner detection for dropped file 22->81 83 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 22->83 85 6 other signatures 22->85 33 tor-real.exe 11 22->33         started        59 127.0.0.1 unknown unknown 27->59 file10 signatures11 process12 dnsIp13 49 139.162.232.28, 9001 LINODE-APLinodeLLCUS Netherlands 33->49 51 46.126.96.8, 9001 LIBERTYGLOBALLibertyGlobalformerlyUPCBroadbandHolding Switzerland 33->51 53 5 other IPs or domains 33->53 71 Found Tor onion address 33->71 73 May use the Tor software to hide its network traffic 33->73 37 conhost.exe 33->37         started        signatures14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861/
Threat name:
Win32.Trojan.Mardom
Create hunting rule
Status:
Malicious
First seen:
2023-08-29 17:59:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eth2rhubl2y4742x2kxkzsduu76jsca624y5tv2wg2hn7zn6zbqq._file
Verdict:
malicious
Similar samples:
010207d4463874eabd3808b12355e24acab67ff55c93c075625c2a05e481fd31
GurcuStealer
1306e24bda80da1dacddc7c7d808502407cc8b29960d807aed0327050ba32be6
GurcuStealer
2f60704e2dac47d532955485a04c195dffa41f9e638527ac42c82a224b2202ea
GurcuStealer
464fe77f576d8273564bb5b7976b381855d962017f4da6b5a363af78bf788799
GurcuStealer
75fa551eec71d6d8b9817266813715c2bbb7a537005587f9f1e0d058a05febc6
GurcuStealer
af3b8311c191d529461c48cdc5af00df25735fab439aa7570685b6c09635bc9c
GurcuStealer
b53f222ffcc99939a1141a06e2240525c7154fcf2f39f8c5ca19a079e08a41fd
GurcuStealer
cb3d08dd3044e25627bc2f3e80575495f40fc11442e35a708f3f1eb28b7d82e1
GurcuStealer
df00279749a73b854f3d6415a49e7cd0ea507b69b510d7505f2ca7c908d25a4a
GurcuStealer
e038cd85c9da66e9517bba1e3af819a7cb1cf068fe955b8e125273d1e0533c2b
GurcuStealer
+ 7 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230829-wkp95sed75/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Looks up external IP address via web service
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
360594641f9390d41977fd3b61d75b05bea9706ceebbb9d6ead879c2a93f1a6e
MD5 hash:
e2acffe9ec7517da28b8700e6144c9ad
SHA1 hash:
1d3de19a006f7bfe50a6138aa397aced0276b6ea
Link:
https://www.unpac.me/results/13416bd6-0d9b-4e15-817e-d48c2fc387d9/
SH256 hash:
24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861
MD5 hash:
cdba2f85dd885d8fc4877016c917b2e1
SHA1 hash:
32fa75bddbc341415218283a734b6bd8e8d23d38
Link:
https://www.unpac.me/results/13416bd6-0d9b-4e15-817e-d48c2fc387d9/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/24cfa89e815e/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/24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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 24cfa89e815eb1cff357d2aeacc874a7fc99081ed731d9d756368edfe5bec861

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2708125/
Cape
Cape
https://www.capesandbox.com/analysis/445135/

Comments


Avatar
zbet commented on 2023-08-29 17:58:23 UTC

url : hxxp://193.233.255.9/lend/build838124214.exe