MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a96b7f18c9a9c703893185f244df0e6d482e8b7182e4268c607be387acc0e2e1. 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 2 File information Comments

SHA256 hash: a96b7f18c9a9c703893185f244df0e6d482e8b7182e4268c607be387acc0e2e1
SHA3-384 hash: c292dd0310127ce01dc7040f1160f4128619fd3878bea81ed4c2ae228e524b0868981d22fdbf50834f9772eccecd74e7
SHA1 hash: 72eb7bb215763e4d22ff5b33464745857b4259bc
MD5 hash: 331ed8ae289ce0f120f7b6232bdddd35
humanhash: alabama-earth-friend-bacon
File name:331ed8ae289ce0f120f7b6232bdddd35.exe
Download: download sample
Signature Stealc
File size:355'841 bytes
First seen:2024-04-29 07:15:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash bf1070ba79872e55c98c6b1c44ebbf3c (16 x Stealc, 1 x Arechclient2, 1 x Rhadamanthys)
ssdeep 6144:hGNRPF5bRarCh+as9IGq4Bnz86C90O0zS9Hfq1VxcpbJSlKXBESyflf:oDYCYaSIf4S6g0O0Cy1qAldSAlf
TLSH T11774F1127A60C4F2F5ABD8704534DEA09BFF74721AA4818B37D4076E5E726C0963E3B6
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 64f29a9899a99991 (7 x Stealc, 2 x Arechclient2)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.150/c698e1bc8a2f5e6d.php

Intelligence


File Origin
# of uploads :
1
# of downloads :
333
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a96b7f18c9a9c703893185f244df0e6d482e8b7182e4268c607be387acc0e2e1.exe
Verdict:
Malicious activity
Analysis date:
2024-04-29 07:17:56 UTC
Tags:
gcleaner loader stealer stealc 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
Connection attempt
Sending an HTTP GET request
Connecting to a non-recommended domain
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:
PureLog Stealer, RedLine, SectopRAT, Ste
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
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 hidden mapped module (file has been removed from disk)
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 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)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected SectopRAT
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433130 Sample: rlVfqhCpaJ.exe Startdate: 29/04/2024 Architecture: WINDOWS Score: 100 61 download.iolo.net 2->61 63 westus2-2.in.applicationinsights.azure.com 2->63 65 5 other IPs or domains 2->65 89 Snort IDS alert for network traffic 2->89 91 Malicious sample detected (through community Yara rule) 2->91 93 Antivirus detection for URL or domain 2->93 95 14 other signatures 2->95 9 rlVfqhCpaJ.exe 3 11 2->9         started        14 run.exe 2->14         started        signatures3 process4 dnsIp5 71 185.172.128.90, 49735, 80 NADYMSS-ASRU Russian Federation 9->71 73 185.172.128.228, 49736, 80 NADYMSS-ASRU Russian Federation 9->73 75 2 other IPs or domains 9->75 51 C:\Users\user\AppData\Local\Temp\u4yk.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 103 Detected unpacking (changes PE section rights) 9->103 105 Detected unpacking (overwrites its own PE header) 9->105 16 run.exe 6 9->16         started        20 u4yk.3.exe 8 8 9->20         started        23 u4yk.0.exe 9->23         started        25 WerFault.exe 21 16 9->25         started        107 Maps a DLL or memory area into another process 14->107 109 Found direct / indirect Syscall (likely to bypass EDR) 14->109 27 cmd.exe 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 77 Maps a DLL or memory area into another process 16->77 79 Found direct / indirect Syscall (likely to bypass EDR) 16->79 29 cmd.exe 4 16->29         started        67 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 20->67 81 Checks if the current machine is a virtual machine (disk enumeration) 20->81 33 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 9 20->33         started        83 Multi AV Scanner detection for dropped file 23->83 85 Machine Learning detection for dropped file 23->85 49 C:\Users\user\AppData\Local\Temp\hogtioo, PE32 27->49 dropped 87 Writes to foreign memory regions 27->87 35 conhost.exe 27->35         started        37 MSBuild.exe 27->37         started        file10 signatures11 process12 file13 59 C:\Users\user\AppData\Local\...\kmmumukabeglq, PE32 29->59 dropped 111 Writes to foreign memory regions 29->111 113 Found hidden mapped module (file has been removed from disk) 29->113 115 Maps a DLL or memory area into another process 29->115 39 MSBuild.exe 29->39         started        43 conhost.exe 29->43         started        117 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 33->117 119 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 33->119 121 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 33->121 signatures14 process15 dnsIp16 69 91.215.85.66 PINDC-ASRU Russian Federation 39->69 97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 39->97 99 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 39->99 101 Tries to harvest and steal browser information (history, passwords, etc) 39->101 signatures17
Threat name:
Win32.Spyware.Stealc
Status:
Malicious
First seen:
2024-04-29 07:16:07 UTC
File Type:
PE (Exe)
Extracted files:
16
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat discovery rat spyware 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
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
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
SectopRAT
SectopRAT payload
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.150
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
SH256 hash:
a96b7f18c9a9c703893185f244df0e6d482e8b7182e4268c607be387acc0e2e1
MD5 hash:
331ed8ae289ce0f120f7b6232bdddd35
SHA1 hash:
72eb7bb215763e4d22ff5b33464745857b4259bc
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:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

Stealc

Executable exe a96b7f18c9a9c703893185f244df0e6d482e8b7182e4268c607be387acc0e2e1

(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::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ScrollConsoleScreenBufferA
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetConsoleTitleW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments