MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f
SHA3-384 hash: f4ce1450f4036f4a5760b2ef1bbf0983b09b99c30a18e22d9dd2b34bb2c2ac0e2792b9b7624f57618a777c6665804e22
SHA1 hash: e1ca795b76fc471cd02989504f9dcb6daf00172d
MD5 hash: 378505ab34d116d3770a7f59be4ede93
humanhash: timing-freddie-oscar-river
File name:378505ab34d116d3770a7f59be4ede93.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:424'961 bytes
First seen:2024-04-22 12:55:18 UTC
Last seen:2024-04-22 13:39:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 715c41da357ad19aef37547b741546d9 (8 x Stealc)
ssdeep 6144:YKkvQFITU9Ldd19xaz94FF9CbCix9/iJSiROJPnmTxUhJrF:rkv0ITU9pDq0LC+49aJSYOPnkgF
TLSH T17B94F10276E1CE32DDE248B45C2BEAF09E2E78714E61865F7244DAAFDE31191F632315
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 :
325
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
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
Creating a file in the %AppData% subdirectories
Launching cmd.exe command interpreter
Moving a file to the Program Files subdirectory
Replacing files
Transferring files using the Background Intelligent Transfer Service (BITS)
Enabling the 'hidden' option for recently created files
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/66265e67c5dabc22b20588f1/reports/86681d83-e4ca-4ab2-af46-578a7aa21c54/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f
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/6790232d-6ee4-41e0-b58f-bd9e5d3b9123
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/1429649
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: 1429649 Sample: jmud48R9xn.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 89 pastebin.com 2->89 91 download.iolo.net 2->91 93 9 other IPs or domains 2->93 117 Snort IDS alert for network traffic 2->117 119 Found malware configuration 2->119 121 Malicious sample detected (through community Yara rule) 2->121 125 16 other signatures 2->125 11 jmud48R9xn.exe 1 4 2->11         started        16 ptInst.exe 2->16         started        signatures3 123 Connects to a pastebin service (likely for C&C) 89->123 process4 dnsIp5 103 185.172.128.90, 49705, 80 NADYMSS-ASRU Russian Federation 11->103 105 185.172.128.228, 49706, 80 NADYMSS-ASRU Russian Federation 11->105 107 2 other IPs or domains 11->107 81 C:\Users\user\AppData\Local\Temp\u3to.1.exe, PE32 11->81 dropped 83 C:\Users\user\AppData\Local\Temp\u3to.0.exe, PE32 11->83 dropped 85 C:\Users\user\AppData\Local\...\Qg_Appv5.exe, PE32 11->85 dropped 149 Detected unpacking (changes PE section rights) 11->149 151 Detected unpacking (overwrites its own PE header) 11->151 18 u3to.0.exe 69 11->18         started        23 Qg_Appv5.exe 10 11->23         started        25 u3to.1.exe 10 8 11->25         started        27 WerFault.exe 19 16 11->27         started        153 Maps a DLL or memory area into another process 16->153 155 Found direct / indirect Syscall (likely to bypass EDR) 16->155 29 cmd.exe 16->29         started        file6 signatures7 process8 dnsIp9 95 185.172.128.76, 49709, 80 NADYMSS-ASRU Russian Federation 18->95 63 C:\Users\user\AppData\...\softokn3[1].dll, PE32 18->63 dropped 65 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 18->65 dropped 67 C:\Users\user\AppData\...\mozglue[1].dll, PE32 18->67 dropped 79 9 other files (5 malicious) 18->79 dropped 127 Detected unpacking (changes PE section rights) 18->127 129 Detected unpacking (overwrites its own PE header) 18->129 131 Tries to steal Mail credentials (via file / registry access) 18->131 143 8 other signatures 18->143 31 WerFault.exe 18->31         started        69 C:\Users\user\AppData\...\vcruntime140.dll, PE32 23->69 dropped 71 C:\Users\user\AppData\Local\...\ptInst.exe, PE32 23->71 dropped 73 C:\Users\user\AppData\Local\...\msvcp140.dll, PE32 23->73 dropped 75 C:\Users\user\AppData\Local\...\WCLDll.dll, PE32 23->75 dropped 133 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 23->133 135 Found direct / indirect Syscall (likely to bypass EDR) 23->135 33 ptInst.exe 7 23->33         started        97 svc.iolo.com 20.157.87.45 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 25->97 137 Checks if the current machine is a virtual machine (disk enumeration) 25->137 37 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 25->37         started        77 C:\Users\user\AppData\Local\Temp\kgrackjga, PE32 29->77 dropped 139 Writes to foreign memory regions 29->139 141 Maps a DLL or memory area into another process 29->141 39 conhost.exe 29->39         started        41 MSBuild.exe 29->41         started        file10 signatures11 process12 file13 55 C:\Users\user\AppData\...\vcruntime140.dll, PE32 33->55 dropped 57 C:\Users\user\AppData\Roaming\...\ptInst.exe, PE32 33->57 dropped 59 C:\Users\user\AppData\...\msvcp140.dll, PE32 33->59 dropped 61 C:\Users\user\AppData\Roaming\...\WCLDll.dll, PE32 33->61 dropped 109 Found direct / indirect Syscall (likely to bypass EDR) 33->109 43 ptInst.exe 1 33->43         started        111 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 37->111 113 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 37->113 115 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 37->115 signatures14 process15 signatures16 145 Maps a DLL or memory area into another process 43->145 147 Found direct / indirect Syscall (likely to bypass EDR) 43->147 46 cmd.exe 4 43->46         started        process17 file18 87 C:\Users\user\AppData\Local\...\wsyvydvdsnb, PE32 46->87 dropped 157 Writes to foreign memory regions 46->157 159 Found hidden mapped module (file has been removed from disk) 46->159 161 Maps a DLL or memory area into another process 46->161 50 MSBuild.exe 46->50         started        53 conhost.exe 46->53         started        signatures19 process20 dnsIp21 99 91.215.85.66 PINDC-ASRU Russian Federation 50->99 101 pastebin.com 104.20.4.235 CLOUDFLARENETUS United States 50->101
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 12:56:05 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vonhwbi4gorshwolllx5ykcgli6jbxowt5yhrgh2hztj36n35mxq._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-p6b63sbf22/
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/d02b020d-99a4-4b1a-af8b-f15cd686fe60/
SH256 hash:
ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f
MD5 hash:
378505ab34d116d3770a7f59be4ede93
SHA1 hash:
e1ca795b76fc471cd02989504f9dcb6daf00172d
Link:
https://www.unpac.me/results/d02b020d-99a4-4b1a-af8b-f15cd686fe60/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ab9a7b051c33/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:DebuggerCheck__API
Create hunting rule
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 ab9a7b051c33a323d9cb5aefdc28465a3c90ddd69f707898fa3e669df9bbeb2f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2804701/
  
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

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