MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74. 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: 12


Intelligence 12 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74
SHA3-384 hash: 5b9be99f43043840136bc64bf737c8d31036e856b9ede185046a1209514d1c9864e540d8dfd40eb4a308885085f21371
SHA1 hash: b77cf650fca15b35a1694bb409270892be53d70d
MD5 hash: 2db819c7b4fd221df0ea591c26357844
humanhash: louisiana-sweet-cat-fish
File name:2db819c7b4fd221df0ea591c26357844.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:424'961 bytes
First seen:2024-04-22 13:05:21 UTC
Last seen:2024-04-22 13:39:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 715c41da357ad19aef37547b741546d9 (8 x Stealc)
ssdeep 6144:YKkvQFITU9Ldd19xaz94FF9CbCix9/iJSiROJPnmTxUhJrP:rkv0ITU9pDq0LC+49aJSYOPnkgP
TLSH T1A294F10276E1CE32DDE248B45C2BEAF09E2E78714E61865F7244DAAFDE31191F632315
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 64d29a9889a9a991 (4 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.76/3cd2b41cbde8fc9c.php

Intelligence

File Origin
# of uploads :
2
# of downloads :
361
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Creating a file
Sending an HTTP POST request
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Running batch commands
Creating a process with a hidden window
Launching a process
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Enabling the 'hidden' option for recently created files
Enabling the 'hidden' option for files in the %temp% directory
Moving a recently created file
Connection attempt to an infection source
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint overlay
Link:
https://www.filescan.io/uploads/662660bed2fc149e41188af0/reports/01b8263c-0d58-4765-bf51-aec57c8bb127/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74
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/6747b605-13b2-4e5e-83cd-ad2b36074c14
Result
Threat name:
Mars Stealer, PureLog Stealer, RedLine,
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429657
Signature
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Connects to a pastebin service (likely for C&C)
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
Found many strings related to Crypto-Wallets (likely being stolen)
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
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
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)
Sigma detected: Silenttrinity Stager Msbuild Activity
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)
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected RedLine Stealer
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429657 Sample: 03Eq3aGlTA.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 90 pastebin.com 2->90 92 download.iolo.net 2->92 94 6 other IPs or domains 2->94 116 Snort IDS alert for network traffic 2->116 118 Found malware configuration 2->118 120 Malicious sample detected (through community Yara rule) 2->120 124 16 other signatures 2->124 11 03Eq3aGlTA.exe 1 4 2->11         started        16 ptInst.exe 2->16         started        signatures3 122 Connects to a pastebin service (likely for C&C) 90->122 process4 dnsIp5 104 185.172.128.90, 49735, 80 NADYMSS-ASRU Russian Federation 11->104 106 185.172.128.228, 49736, 80 NADYMSS-ASRU Russian Federation 11->106 108 2 other IPs or domains 11->108 82 C:\Users\user\AppData\Local\Temp\u3es.1.exe, PE32 11->82 dropped 84 C:\Users\user\AppData\Local\Temp\u3es.0.exe, PE32 11->84 dropped 86 C:\Users\user\AppData\Local\...\Qg_Appv5.exe, PE32 11->86 dropped 154 Detected unpacking (changes PE section rights) 11->154 156 Detected unpacking (overwrites its own PE header) 11->156 18 u3es.0.exe 68 11->18         started        23 Qg_Appv5.exe 10 11->23         started        25 u3es.1.exe 12 8 11->25         started        27 WerFault.exe 21 16 11->27         started        158 Maps a DLL or memory area into another process 16->158 160 Found direct / indirect Syscall (likely to bypass EDR) 16->160 29 cmd.exe 16->29         started        file6 signatures7 process8 dnsIp9 96 185.172.128.76, 49739, 80 NADYMSS-ASRU Russian Federation 18->96 64 C:\Users\user\AppData\...\softokn3[1].dll, PE32 18->64 dropped 66 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 18->66 dropped 68 C:\Users\user\AppData\...\mozglue[1].dll, PE32 18->68 dropped 80 9 other files (5 malicious) 18->80 dropped 126 Detected unpacking (changes PE section rights) 18->126 128 Detected unpacking (overwrites its own PE header) 18->128 130 Tries to steal Mail credentials (via file / registry access) 18->130 142 7 other signatures 18->142 31 WerFault.exe 18->31         started        70 C:\Users\user\AppData\...\vcruntime140.dll, PE32 23->70 dropped 72 C:\Users\user\AppData\Local\...\ptInst.exe, PE32 23->72 dropped 74 C:\Users\user\AppData\Local\...\msvcp140.dll, PE32 23->74 dropped 76 C:\Users\user\AppData\Local\...\WCLDll.dll, PE32 23->76 dropped 132 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 23->132 134 Found direct / indirect Syscall (likely to bypass EDR) 23->134 33 ptInst.exe 7 23->33         started        98 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->98 136 Checks if the current machine is a virtual machine (disk enumeration) 25->136 36 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 25->36         started        78 C:\Users\user\AppData\Local\Temp\mkyrqb, PE32 29->78 dropped 138 Writes to foreign memory regions 29->138 140 Maps a DLL or memory area into another process 29->140 39 MSBuild.exe 29->39         started        42 conhost.exe 29->42         started        file10 signatures11 process12 dnsIp13 56 C:\Users\user\AppData\...\vcruntime140.dll, PE32 33->56 dropped 58 C:\Users\user\AppData\Roaming\...\ptInst.exe, PE32 33->58 dropped 60 C:\Users\user\AppData\...\msvcp140.dll, PE32 33->60 dropped 62 C:\Users\user\AppData\Roaming\...\WCLDll.dll, PE32 33->62 dropped 44 ptInst.exe 1 33->44         started        144 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 36->144 146 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 36->146 148 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 36->148 102 pastebin.com 104.20.4.235 CLOUDFLARENETUS United States 39->102 file14 signatures15 process16 signatures17 150 Maps a DLL or memory area into another process 44->150 152 Found direct / indirect Syscall (likely to bypass EDR) 44->152 47 cmd.exe 4 44->47         started        process18 file19 88 C:\Users\user\AppData\...\dxjovbpklyqals, PE32 47->88 dropped 110 Writes to foreign memory regions 47->110 112 Found hidden mapped module (file has been removed from disk) 47->112 114 Maps a DLL or memory area into another process 47->114 51 MSBuild.exe 47->51         started        54 conhost.exe 47->54         started        signatures20 process21 dnsIp22 100 91.215.85.66 PINDC-ASRU Russian Federation 51->100
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 13:06:04 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gnixxrn4iww7lo5xigbcwh6m4chyhmzkl26ytxgraohu2i747v2a._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat family:stealc family:zgrat rat stealer trojan
Link:
https://tria.ge/reports/240422-qb2zpabf96/
Behaviour
Checks SCSI registry key(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Detect ZGRat V1
SectopRAT
SectopRAT payload
Stealc
ZGRat
Unpacked files
SH256 hash:
a1ff96ad65a9ead5053b1de9ed94a03ff792cb4f39d84e3123f62ab22fb71e29
MD5 hash:
37862a13464da087a12b6b45fe34f9fe
SHA1 hash:
9214969d475793f2647cbea48760f29998c907d5
Link:
https://www.unpac.me/results/0a73f5cb-254d-47c6-979d-b63fd54d019d/
SH256 hash:
33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74
MD5 hash:
2db819c7b4fd221df0ea591c26357844
SHA1 hash:
b77cf650fca15b35a1694bb409270892be53d70d
Link:
https://www.unpac.me/results/0a73f5cb-254d-47c6-979d-b63fd54d019d/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/33517bc5bc45/report/overview.html
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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:Bolonyokte
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:UnknownDotNet RAT - Bolonyokte
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
Author:Elastic Security
Rule name:with_urls
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the presence of an or several urls
Reference:http://laboratorio.blogs.hispasec.com/
Rule name:yara_template
Create hunting rule

File information

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

Web download

Stealc

Executable exe 33517bc5bc45adf5bbb741822b1fcce08f83b32a5ebd89dcd1038f4d23fcfd74

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2804603/
  
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_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::FindNextVolumeW
KERNEL32.dll::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleDisplayMode
KERNEL32.dll::SetConsoleTitleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

Comments