MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8380469f59a99421ac025c84ac03141e73843d97885b2681474f185ba12796b3. 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 9 File information Comments

SHA256 hash: 8380469f59a99421ac025c84ac03141e73843d97885b2681474f185ba12796b3
SHA3-384 hash: 7f82c1f53012ecc1368ac4f9d2b55a7f3a1537022cf162e5071b25e5cd221693f34a495374b3b31743285c21acec28bd
SHA1 hash: fdd3a2094699e5b9326b418e995c7ac1b15e2d89
MD5 hash: c53639713fc373fabad80a7e93956ab8
humanhash: november-stairway-cold-uranus
File name:c53639713fc373fabad80a7e93956ab8.exe
Download: download sample
Signature Stealc
File size:466'945 bytes
First seen:2024-04-28 09:36:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f654e5c1b5e321f3cf66a20ff016ccab (12 x Stealc, 1 x UACModuleSmokeLoader)
ssdeep 6144:Hb1m+ZBBrVw6UuNeqsGqJJ2hUOWXzt1YyQut4Mq75gQ/l67I2XDihjZd+:7c+5vdsGguOt1YyN4MyN/EQZd+
TLSH T15FA4AE0362E07C94E56687738E3EF6E4361DF9608E956B2F22087ABF04B51F1E253791
TrID 67.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.2% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 10242044c4884800 (5 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.62/902e53a07830e030.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
327
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8380469f59a99421ac025c84ac03141e73843d97885b2681474f185ba12796b3.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 10:03:09 UTC
Tags:
gcleaner loader stealc stealer hijackloader arechclient2 backdoor

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

Behaviour
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
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.
Result
Threat name:
Mars Stealer, PureLog Stealer, RedLine,
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
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)
Connects to many ports of the same IP (likely port scanning)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
Found evasive API chain (may stop execution after checking locale)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
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 browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected SectopRAT
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1432859 Sample: XDW7mdDLBm.exe Startdate: 28/04/2024 Architecture: WINDOWS Score: 100 61 download.iolo.net 2->61 63 westus2-2.in.applicationinsights.azure.com 2->63 65 8 other IPs or domains 2->65 95 Snort IDS alert for network traffic 2->95 97 Multi AV Scanner detection for domain / URL 2->97 99 Found malware configuration 2->99 101 19 other signatures 2->101 9 XDW7mdDLBm.exe 3 11 2->9         started        14 run.exe 2 2->14         started        signatures3 process4 dnsIp5 73 185.172.128.90, 49710, 80 NADYMSS-ASRU Russian Federation 9->73 75 185.172.128.228, 49711, 49716, 80 NADYMSS-ASRU Russian Federation 9->75 77 2 other IPs or domains 9->77 51 C:\Users\user\AppData\Local\Temp\u3jo.3.exe, PE32 9->51 dropped 53 C:\Users\user\AppData\Local\Temp\...\run.exe, PE32 9->53 dropped 55 C:\Users\user\AppData\Local\...\relay.dll, PE32 9->55 dropped 57 2 other malicious files 9->57 dropped 109 Detected unpacking (overwrites its own PE header) 9->109 16 run.exe 6 9->16         started        20 u3jo.0.exe 12 9->20         started        23 u3jo.3.exe 12 8 9->23         started        25 WerFault.exe 22 16 9->25         started        111 Maps a DLL or memory area into another process 14->111 113 Found direct / indirect Syscall (likely to bypass EDR) 14->113 27 cmd.exe 2 14->27         started        file6 signatures7 process8 dnsIp9 45 C:\Users\user\AppData\Roaming\...\relay.dll, PE32 16->45 dropped 47 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 16->47 dropped 79 Maps a DLL or memory area into another process 16->79 81 Found direct / indirect Syscall (likely to bypass EDR) 16->81 29 cmd.exe 4 16->29         started        67 185.172.128.62, 49713, 80 NADYMSS-ASRU Russian Federation 20->67 83 Multi AV Scanner detection for dropped file 20->83 85 Detected unpacking (changes PE section rights) 20->85 87 Detected unpacking (overwrites its own PE header) 20->87 93 3 other signatures 20->93 69 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 23->69 89 Checks if the current machine is a virtual machine (disk enumeration) 23->89 33 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 9 23->33         started        49 C:\Users\user\AppData\Local\Temp\ywgxykf, PE32 27->49 dropped 91 Writes to foreign memory regions 27->91 35 conhost.exe 27->35         started        37 MSBuild.exe 27->37         started        file10 signatures11 process12 file13 59 C:\Users\user\AppData\Local\Temp\nmp, PE32 29->59 dropped 115 Writes to foreign memory regions 29->115 117 Found hidden mapped module (file has been removed from disk) 29->117 119 Maps a DLL or memory area into another process 29->119 39 MSBuild.exe 29->39         started        43 conhost.exe 29->43         started        121 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->121 123 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 33->123 125 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 33->125 signatures14 process15 dnsIp16 71 91.215.85.66 PINDC-ASRU Russian Federation 39->71 103 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 39->103 105 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 39->105 107 Tries to harvest and steal browser information (history, passwords, etc) 39->107 signatures17
Threat name:
Win32.Trojan.StealC
Status:
Malicious
First seen:
2024-04-28 09:37:04 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat discovery rat stealer trojan
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks installed software on the system
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Detect ZGRat V1
SectopRAT
SectopRAT payload
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.62
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
SH256 hash:
8380469f59a99421ac025c84ac03141e73843d97885b2681474f185ba12796b3
MD5 hash:
c53639713fc373fabad80a7e93956ab8
SHA1 hash:
fdd3a2094699e5b9326b418e995c7ac1b15e2d89
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Windows_Trojan_Generic_2993e5a5
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Author:Elastic Security
Rule name:win_stealc_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.stealc.

File information


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

Web download

Stealc

Executable exe 8380469f59a99421ac025c84ac03141e73843d97885b2681474f185ba12796b3

(this sample)

  
Delivery method
Distributed via web download

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::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleProcessList
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
KERNEL32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceW

Comments