MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98
SHA3-384 hash: 1eea87281db0da297a7ec5ac62936f2c78c1496460be4c719dc1b9843ffe136b707658139093e5b9397f119c43bc2cb4
SHA1 hash: c46856c1394a0b36f7826285db0d72ae494f15f0
MD5 hash: fdb8081ac26d8de3f7582b2616bcf3e8
humanhash: idaho-robert-blossom-idaho
File name:SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515
Download: download sample
Signature GurcuStealer
Create hunting rule
File size:614'120 bytes
First seen:2023-05-25 00:28:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:kH5XgP9i7Nss/t/a2zDGVPJXvnzZjDJHb571Kjn1929XDccH89bq3vcebsVDsu:8UkRatpvnzZjDv7oj19yTN3vi1
TLSH T1B8D46B4C7749EDD0EFBF41BDA47627009334C0435214A6173FEE69E6ABA26406F4ACAD
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)
File icon (PE):PE icon
dhash icon 0c888a8ccc8aa01c (4 x GurcuStealer, 1 x EternityStealer)
Reporter SecuriteInfoCom
Tags:exe GurcuStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515
Verdict:
Malicious activity
Analysis date:
2023-05-25 00:29:41 UTC
Tags:
evasion
Link:
https://app.any.run/tasks/6ff19f87-7ed1-4f5f-91ef-09ebaca52a88

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/391351/
Detection(s):
SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515.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
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
DNS request
Sending an HTTP GET request
Reading critical registry keys
Sending a custom TCP request
Creating a file in the %temp% directory
Sending an HTTP POST request
Moving a recently created file
Creating a window
Unauthorized injection to a recently created process
Stealing user critical data
Sending a TCP request to an infection source
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed packed
Link:
https://www.filescan.io/uploads/646eab941d162541e4be7f13/reports/ba10ddff-5372-4313-b6ca-3fd225eb53b7/overview
Verdict:
Malicious
Labled as:
Trojan.Mardom.IN.Generic
Link:
https://www.hybrid-analysis.com/sample/2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98
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/6c38e837-fec4-444e-b5c6-f9236609b506
Result
Threat name:
Gurcu Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1242080
Signature
.NET source code contains very large strings
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
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 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: 875091 Sample: SecuriteInfo.com.Trojan.Mar... Startdate: 25/05/2023 Architecture: WINDOWS Score: 100 85 Found malware configuration 2->85 87 Multi AV Scanner detection for submitted file 2->87 89 Yara detected Gurcu Stealer 2->89 91 7 other signatures 2->91 9 SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515.exe 7 2->9         started        13 SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515.exe 4 2->13         started        16 SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515.exe 2->16         started        process3 dnsIp4 51 SecuriteInfo.com.T...N.24.4653.16515.exe, PE32 9->51 dropped 53 SecuriteInfo.com.T....4653.16515.exe.log, CSV 9->53 dropped 55 SecuriteInfo.com.T...exe:Zone.Identifier, ASCII 9->55 dropped 97 Self deletion via cmd or bat file 9->97 18 cmd.exe 1 9->18         started        79 youtube.kz 142.250.203.110 GOOGLEUS United States 13->79 81 youtube-ui.l.google.com 172.217.168.78 GOOGLEUS United States 13->81 83 8 other IPs or domains 13->83 99 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->99 101 Tries to steal Mail credentials (via file / registry access) 13->101 103 Tries to harvest and steal browser information (history, passwords, etc) 13->103 21 tar.exe 13->21         started        23 tor.exe 16->23         started        25 WerFault.exe 16->25         started        file5 signatures6 process7 signatures8 93 Uses schtasks.exe or at.exe to add and modify task schedules 18->93 95 Uses ping.exe to check the status of other devices and networks 18->95 27 SecuriteInfo.com.Trojan.Mardom.IN.24.4653.16515.exe 14 8 18->27         started        31 PING.EXE 1 18->31         started        33 conhost.exe 18->33         started        39 2 other processes 18->39 35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        process9 dnsIp10 65 twitter.com 104.244.42.129 TWITTERUS United States 27->65 67 104.244.42.65 TWITTERUS United States 27->67 71 9 other IPs or domains 27->71 105 Multi AV Scanner detection for dropped file 27->105 107 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 27->107 109 May check the online IP address of the machine 27->109 111 3 other signatures 27->111 41 tar.exe 27->41         started        44 tor.exe 27->44         started        69 127.0.0.1 unknown unknown 31->69 signatures11 process12 dnsIp13 57 C:\Users\user\AppData\Local\...\tor.exe, PE32+ 41->57 dropped 59 C:\Users\user\AppData\...\tor-gencert.exe, PE32+ 41->59 dropped 61 C:\Users\user\...\snowflake-client.exe, PE32+ 41->61 dropped 63 C:\Users\user\AppData\...\obfs4proxy.exe, PE32+ 41->63 dropped 47 conhost.exe 41->47         started        73 192.42.115.101 SURFNET-NLSURFnetTheNetherlandsNL Netherlands 44->73 75 51.15.44.251 OnlineSASFR France 44->75 77 4 other IPs or domains 44->77 49 conhost.exe 44->49         started        file14 process15
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98/
Threat name:
Win32.Trojan.Mardom
Create hunting rule
Status:
Malicious
First seen:
2023-05-24 23:46:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
16 of 23 (69.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fqwvpupkbbmv3oniu3a37dn6id5mk6u3pbhp6agebfohf7hib2ma._file
Result
Malware family:
gurcu
Create hunting rule
Score:
  10/10
Tags:
family:gurcu collection discovery spyware stealer
Link:
https://tria.ge/reports/230525-asb7lafh3x/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Accesses Microsoft Outlook profiles
Checks installed software on the system
Looks up external IP address via web service
Checks computer location settings
Deletes itself
Executes dropped EXE
Reads user/profile data of web browsers
Gurcu, WhiteSnake
Malware Config
C2 Extraction:
https://api.telegram.org/bot6237712604:AAESgAGfaQ0EUC8eWgMd7kpAW_FEGRDRfDs/sendMessage?chat_id=880824160
Unpacked files
SH256 hash:
66675ccd5e1f123c51cb649a1036f2930d72100c85e364136b3835a0d0dc7566
MD5 hash:
79293dd68bddd7158883e9c8200dd19f
SHA1 hash:
cf56a79bd1b7a7c132fcefc81ed0e95f1477592d
Link:
https://www.unpac.me/results/2702a51e-fa3e-48dc-a21d-6ec5fc884dbc/
SH256 hash:
2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98
MD5 hash:
fdb8081ac26d8de3f7582b2616bcf3e8
SHA1 hash:
c46856c1394a0b36f7826285db0d72ae494f15f0
Link:
https://www.unpac.me/results/2702a51e-fa3e-48dc-a21d-6ec5fc884dbc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98

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_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 2c2d57d1ea08595db9a8a6c1bf8dbe40fac57a9b784eff00c4095c72fce80e98

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2640216/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/391351/

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