MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82. 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 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82
SHA3-384 hash: 10772880eb3dd431c794f8ddf7a05175861fb51e91056577de49851e82543a5b2f8c39764b77188bfe6eb365397f0b51
SHA1 hash: 87e5501bbc72be1d0b763acec9bf08c9db26a8d1
MD5 hash: 51e5979460e5a9dc941c03bc76cc3855
humanhash: september-november-bacon-echo
File name:51e5979460e5a9dc941c03bc76cc3855
Download: download sample
Signature Stealc
Create hunting rule
File size:455'681 bytes
First seen:2024-04-08 07:13:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9ee9346826f4cfd6b39a524a25cdc5de (2 x Stealc)
ssdeep 12288:f9zyluCg7RvcQ7tZRsuPE16N0N9k9ptHMF:PCg7RvcKKnitHMF
TLSH T169A45B43AAE17C54E9294B738F1E86E8B31EF5609F596BEB221C9D0B05B10F1D233B51
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 0305132310042100 (2 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
337
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82.exe
Verdict:
Malicious activity
Analysis date:
2024-04-08 07:15:45 UTC
Tags:
gcleaner loader stealer stealc
Link:
https://app.any.run/tasks/bc6a3250-c645-4d9a-9c4f-f30477a9a6df

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
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP GET request
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a window
Searching for synchronization primitives
Creating a file
Running batch commands
Creating a process with a hidden window
Launching the default Windows debugger (dwwin.exe)
DNS request
Sending an HTTP POST request
Launching a process
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
Moving a file to the Program Files subdirectory
Replacing files
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Link:
https://www.filescan.io/uploads/6613993be824d2f0c7c23ab6/reports/dacfb025-2560-474b-acc9-c004baf861b6/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82
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/7bf32503-5ab8-4429-b1de-e3ffc4ebf1f8
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/1422030
Signature
.NET source code contains method to dynamically call methods (often used by packers)
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 dropped file
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: 1422030 Sample: TxdFaToC4b.exe Startdate: 08/04/2024 Architecture: WINDOWS Score: 100 59 westus2-2.in.applicationinsights.azure.com 2->59 61 westus2-2.in.ai.privatelink.monitor.azure.com 2->61 63 2 other IPs or domains 2->63 83 Snort IDS alert for network traffic 2->83 85 Multi AV Scanner detection for domain / URL 2->85 87 Found malware configuration 2->87 89 16 other signatures 2->89 11 TxdFaToC4b.exe 1 3 2->11         started        signatures3 process4 dnsIp5 67 185.172.128.90, 49704, 80 NADYMSS-ASRU Russian Federation 11->67 69 185.172.128.228, 49705, 49707, 49727 NADYMSS-ASRU Russian Federation 11->69 71 185.172.128.59, 49706, 80 NADYMSS-ASRU Russian Federation 11->71 51 C:\Users\user\AppData\Local\Temp\u4qw.1.exe, PE32 11->51 dropped 53 C:\Users\user\AppData\Local\Temp\u4qw.0.exe, PE32 11->53 dropped 103 Detected unpacking (changes PE section rights) 11->103 105 Detected unpacking (overwrites its own PE header) 11->105 16 u4qw.0.exe 70 11->16         started        21 u4qw.1.exe 18 8 11->21         started        file6 signatures7 process8 dnsIp9 55 185.172.128.209, 49708, 80 NADYMSS-ASRU Russian Federation 16->55 43 C:\Users\user\AppData\...\IJJDBAEHIJ.exe, PE32 16->43 dropped 45 C:\Users\user\AppData\...\softokn3[1].dll, PE32 16->45 dropped 47 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 16->47 dropped 49 11 other files (7 malicious) 16->49 dropped 73 Multi AV Scanner detection for dropped file 16->73 75 Detected unpacking (changes PE section rights) 16->75 77 Detected unpacking (overwrites its own PE header) 16->77 81 9 other signatures 16->81 23 cmd.exe 16->23         started        26 WerFault.exe 16->26         started        57 svc.iolo.com 20.157.87.45, 49709, 49723, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->57 79 Checks if the current machine is a virtual machine (disk enumeration) 21->79 28 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 12 21->28         started        file10 signatures11 process12 signatures13 93 Uses ping.exe to sleep 23->93 95 Uses ping.exe to check the status of other devices and networks 23->95 30 IJJDBAEHIJ.exe 23->30         started        33 conhost.exe 23->33         started        97 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 28->97 99 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 28->99 101 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 28->101 process14 signatures15 107 Antivirus detection for dropped file 30->107 109 Multi AV Scanner detection for dropped file 30->109 35 cmd.exe 30->35         started        process16 signatures17 91 Uses ping.exe to sleep 35->91 38 PING.EXE 35->38         started        41 conhost.exe 35->41         started        process18 dnsIp19 65 2.2.2.2 FranceTelecom-OrangeFR France 38->65
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82/
Threat name:
Win32.Trojan.Glupteba
Create hunting rule
Status:
Malicious
First seen:
2024-04-08 07:14:06 UTC
File Type:
PE (Exe)
Extracted files:
53
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yfz47syk36rqcorzqy4hrg7ugudadtha4hcvurlntayrkqygf6ba._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/240408-h2mzfseh8s/
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
Malware Config
C2 Extraction:
http://185.172.128.209
Unpacked files
SH256 hash:
9874c7bd9d008c8a7105c8e402813204d5c3ddc3fb8d1aaddbb0e19d65062dfb
MD5 hash:
999af7adf5fa30b3d748da1b2e84affd
SHA1 hash:
8cfd1de05578d750b296d13f6f8bc1d78d42a891
Link:
https://www.unpac.me/results/afeff601-4d24-4fb2-bf63-0bd61d3ddb1a/
SH256 hash:
c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82
MD5 hash:
51e5979460e5a9dc941c03bc76cc3855
SHA1 hash:
87e5501bbc72be1d0b763acec9bf08c9db26a8d1
Link:
https://www.unpac.me/results/afeff601-4d24-4fb2-bf63-0bd61d3ddb1a/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c173cfcb0adf/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/c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82

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:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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 c173cfcb0adfa3013a398638789bf4350601cce0e1c55a456d98311543062f82

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2788551/
  
URLhaus
https://urlhaus.abuse.ch/url/2804701/

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::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointW
KERNEL32.dll::FindNextVolumeA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesLengthA
KERNEL32.dll::GetConsoleAliasW
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::MoveFileWithProgressW
KERNEL32.dll::GetWindowsDirectoryW
KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceA

Comments


Avatar
zbet commented on 2024-04-08 07:13:33 UTC

url : hxxp://185.172.128.59/ISetup8.exe