MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba. 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


Stealc


Vendor detections: 15


Intelligence 15 IOCs YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba
SHA3-384 hash: 6c677763a71ebbdb5ff92435f1be0c22c0c3fa7a0e3e0e8830e1af8c19686c7423156338023ef38b0ef39f1713c4186b
SHA1 hash: 76766cb5389191a42179f111584b91b60054baf1
MD5 hash: 533d08367a6d461b9d744a84e1095ec6
humanhash: ceiling-minnesota-pluto-wisconsin
File name:533d08367a6d461b9d744a84e1095ec6
Download: download sample
Signature Stealc
Create hunting rule
File size:446'977 bytes
First seen:2024-04-11 05:45:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6df2f29ab960e6e9ad93053361f8c842 (1 x Stealc)
ssdeep 6144:QkkPuOUuT/8l8a46pFQSRmZqOjgBgTZcMinn3vcUVtgNgUr9v7oPQdf:QkkhfTMsmFQSRPOjgwZcu2tg+Ur9vPdf
TLSH T17894CF4276D0B8F1E52342721E7D96A266FDFC604F16EB6B63594E0F09700A1DF2E722
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon 0810123050c0c000 (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
345
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba.exe
Verdict:
Malicious activity
Analysis date:
2024-04-11 05:49:21 UTC
Tags:
gcleaner loader stealer stealc
Link:
https://app.any.run/tasks/458ea2d3-2a97-4666-bbb2-df861ef69341

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Creating a window
Searching for synchronization primitives
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP POST request
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Enabling the 'hidden' option for files in the %temp% directory
Moving a recently created file
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Link:
https://www.filescan.io/uploads/6617791b35699b4745c59992/reports/fd548d90-eafe-4364-a8b1-18f870e553c8/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/65d3e17d-7a2e-4993-bdf8-d9061cc9bd90
Result
Threat name:
Mars Stealer, PureLog Stealer, Stealc, V
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1424291
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
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)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1424291 Sample: 2k2YfrR0Mr.exe Startdate: 11/04/2024 Architecture: WINDOWS Score: 100 61 westus2-2.in.applicationinsights.azure.com 2->61 63 westus2-2.in.ai.privatelink.monitor.azure.com 2->63 65 2 other IPs or domains 2->65 87 Snort IDS alert for network traffic 2->87 89 Multi AV Scanner detection for domain / URL 2->89 91 Found malware configuration 2->91 93 17 other signatures 2->93 11 2k2YfrR0Mr.exe 1 3 2->11         started        signatures3 process4 dnsIp5 69 185.172.128.90, 49730, 80 NADYMSS-ASRU Russian Federation 11->69 71 185.172.128.228, 49731, 49733, 49757 NADYMSS-ASRU Russian Federation 11->71 73 185.172.128.59, 49732, 80 NADYMSS-ASRU Russian Federation 11->73 53 C:\Users\user\AppData\Local\Temp\u5mg.1.exe, PE32 11->53 dropped 55 C:\Users\user\AppData\Local\Temp\u5mg.0.exe, PE32 11->55 dropped 107 Detected unpacking (changes PE section rights) 11->107 109 Detected unpacking (overwrites its own PE header) 11->109 16 u5mg.0.exe 76 11->16         started        21 u5mg.1.exe 10 8 11->21         started        23 WerFault.exe 21 16 11->23         started        file6 signatures7 process8 dnsIp9 57 185.172.128.209, 49734, 80 NADYMSS-ASRU Russian Federation 16->57 45 C:\Users\user\AppData\...\AFCBAEBAEB.exe, PE32 16->45 dropped 47 C:\Users\user\AppData\...\softokn3[1].dll, PE32 16->47 dropped 49 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 16->49 dropped 51 11 other files (7 malicious) 16->51 dropped 77 Multi AV Scanner detection for dropped file 16->77 79 Detected unpacking (changes PE section rights) 16->79 81 Detected unpacking (overwrites its own PE header) 16->81 85 8 other signatures 16->85 25 cmd.exe 16->25         started        28 WerFault.exe 16->28         started        59 svc.iolo.com 20.157.87.45, 49735, 49753, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->59 83 Checks if the current machine is a virtual machine (disk enumeration) 21->83 30 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 12 21->30         started        file10 signatures11 process12 signatures13 97 Uses ping.exe to sleep 25->97 99 Uses ping.exe to check the status of other devices and networks 25->99 32 AFCBAEBAEB.exe 25->32         started        35 conhost.exe 25->35         started        101 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->101 103 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 30->103 105 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 30->105 process14 signatures15 75 Multi AV Scanner detection for dropped file 32->75 37 cmd.exe 32->37         started        process16 signatures17 95 Uses ping.exe to sleep 37->95 40 PING.EXE 37->40         started        43 conhost.exe 37->43         started        process18 dnsIp19 67 2.2.2.2 FranceTelecom-OrangeFR France 40->67
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba/
Threat name:
Win32.Trojan.Rhadamanthys
Create hunting rule
Status:
Malicious
First seen:
2024-04-11 05:46:05 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tqpsoguq6kvvgru5ucc52pa5rf6rm4ul5nilckpw3ko7wzczgw5a._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:zgrat discovery rat spyware stealer
Link:
https://tria.ge/reports/240411-ggamysgf5s/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect ZGRat V1
Stealc
ZGRat
Unpacked files
SH256 hash:
9874c7bd9d008c8a7105c8e402813204d5c3ddc3fb8d1aaddbb0e19d65062dfb
MD5 hash:
999af7adf5fa30b3d748da1b2e84affd
SHA1 hash:
8cfd1de05578d750b296d13f6f8bc1d78d42a891
Link:
https://www.unpac.me/results/1470cad2-6497-4fe2-9720-f0d52ac8dff5/
SH256 hash:
9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba
MD5 hash:
533d08367a6d461b9d744a84e1095ec6
SHA1 hash:
76766cb5389191a42179f111584b91b60054baf1
Link:
https://www.unpac.me/results/1470cad2-6497-4fe2-9720-f0d52ac8dff5/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9c1f271a90f2/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/9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:EXE_Stealer_StealC_Feb2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security

File information

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

Web download

Stealc

Executable exe 9c1f271a90f2ab53469da085dd3c1d897d16728beb50b129f6da9dfb645935ba

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2801032/
  
URLhaus
https://urlhaus.abuse.ch/url/2804603/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::VirtualAllocEx
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointA
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleInputA
KERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetStdHandle
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryW
KERNEL32.dll::GetFileAttributesA
KERNEL32.dll::RemoveDirectoryW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpWriteData

Comments


Avatar
zbet commented on 2024-04-11 05:45:58 UTC

url : hxxp://185.172.128.144/ISetup2.exe