MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4. 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: 13


Intelligence 13 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4
SHA3-384 hash: aa90bb173342edb5a4998991e3905aef29f18a622dc551655d6752eb046ceeadbd2cd9ab2c2572362f1e3db0e1da4d4f
SHA1 hash: 5152029f73a2475e4929cffab895647112714625
MD5 hash: 4b67132f548e1e818c48de7a60b10f25
humanhash: mississippi-quiet-bulldog-gee
File name:4b67132f548e1e818c48de7a60b10f25
Download: download sample
Signature Stealc
Create hunting rule
File size:450'561 bytes
First seen:2024-04-16 09:29:03 UTC
Last seen:2024-04-16 10:27:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b0e7b1f470281f5f864a1cf1dacc65ba (2 x Stealc)
ssdeep 6144:F7tHLVrEHo/Qi62tEHJym1hp2o8krwYHUXiK1YJrcbxuTvK:F7tHpAdispyGhQiMiAvxKvK
TLSH T1D0A4E10266E3E476D23609718D39EBB41E6EB9E3DEECA2D73654663F1A302D0D513312
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 1370ecd2ccf0331a (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence

File Origin
# of uploads :
2
# of downloads :
368
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4.exe
Verdict:
Malicious activity
Analysis date:
2024-04-16 09:30:11 UTC
Tags:
gcleaner loader stealer stealc telnet
Link:
https://app.any.run/tasks/b5c6c86e-3d07-410b-8ab9-3f306bfe4229

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

Behaviour
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Creating a window
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4
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/65b3311d-4be4-4d3c-abca-d6edd92d0dca
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/1426609
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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)
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: 1426609 Sample: ylUZYIm2Lx.exe Startdate: 16/04/2024 Architecture: WINDOWS Score: 100 39 westus2-2.in.applicationinsights.azure.com 2->39 41 westus2-2.in.ai.privatelink.monitor.azure.com 2->41 43 2 other IPs or domains 2->43 55 Snort IDS alert for network traffic 2->55 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 13 other signatures 2->61 8 ylUZYIm2Lx.exe 1 3 2->8         started        signatures3 process4 dnsIp5 45 185.172.128.90, 49704, 80 NADYMSS-ASRU Russian Federation 8->45 47 185.172.128.228, 49705, 49707, 80 NADYMSS-ASRU Russian Federation 8->47 49 185.172.128.59, 49706, 80 NADYMSS-ASRU Russian Federation 8->49 27 C:\Users\user\AppData\Local\Temp\u4xo.1.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\Local\Temp\u4xo.0.exe, PE32 8->29 dropped 69 Detected unpacking (changes PE section rights) 8->69 71 Detected unpacking (overwrites its own PE header) 8->71 13 u4xo.0.exe 77 8->13         started        18 u4xo.1.exe 6 8 8->18         started        20 WerFault.exe 19 16 8->20         started        file6 signatures7 process8 dnsIp9 51 185.172.128.209, 49708, 80 NADYMSS-ASRU Russian Federation 13->51 31 C:\Users\user\AppData\...\softokn3[1].dll, PE32 13->31 dropped 33 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 13->33 dropped 35 C:\Users\user\AppData\...\mozglue[1].dll, PE32 13->35 dropped 37 9 other files (5 malicious) 13->37 dropped 73 Antivirus detection for dropped file 13->73 75 Multi AV Scanner detection for dropped file 13->75 77 Detected unpacking (changes PE section rights) 13->77 81 10 other signatures 13->81 22 WerFault.exe 13->22         started        53 svc.iolo.com 20.157.87.45, 49709, 49731, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->53 79 Checks if the current machine is a virtual machine (disk enumeration) 18->79 24 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 9 18->24         started        file10 signatures11 process12 signatures13 63 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 24->63 65 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 24->65 67 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 24->67
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-04-16 09:30:06 UTC
File Type:
PE (Exe)
Extracted files:
50
AV detection:
19 of 23 (82.61%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u6quewl5grqls4djuzx7tmdrl4min4k6gpm2aydotj2kzktlbo2a._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/240416-lgf7ysgc2v/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
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/e112ec1f-beb5-4645-b92f-380ac0446640/
SH256 hash:
a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4
MD5 hash:
4b67132f548e1e818c48de7a60b10f25
SHA1 hash:
5152029f73a2475e4929cffab895647112714625
Link:
https://www.unpac.me/results/e112ec1f-beb5-4645-b92f-380ac0446640/
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/a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4

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: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 a7a142597d3460b97069a66ff9b0715f1886f15e33d9a0606e9a74acaa6b0bb4

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2813846/

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::SetFirmwareEnvironmentVariableA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleDisplayMode
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
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


Avatar
zbet commented on 2024-04-16 09:29:04 UTC

url : hxxp://185.172.128.59/ISetup7.exe