MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938
SHA3-384 hash: 8d4a3cbbd477a70900e9c2d9ff1aa961dcc92a71bd957501183eb3a265ede1e01eba7fb0970cdd7f2dc721a63e3e0f2a
SHA1 hash: 73a89cb697803cc046362bc68027e184e83b4e45
MD5 hash: 9f10349504fae0960f2cf133ccf21252
humanhash: nineteen-north-fix-sodium
File name:9f10349504fae0960f2cf133ccf21252.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:466'944 bytes
First seen:2024-04-28 06:05:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8c8bbaaa682c013cc75d9e0c38f1112a (30 x Stealc, 3 x Arechclient2, 1 x LummaStealer)
ssdeep 12288:SMAzoV3Y9YLR4W/Rt7yL794skEZUXwE8:IoV3Y9YLRN/XQUOUXwE8
TLSH T14BA4AE0362D07C54E56687328E3EB6E8361DF9708E996B67320CBA6F16B80F1F163751
TrID 44.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
33.4% (.EXE) InstallShield setup (43053/19/16)
8.1% (.EXE) Win64 Executable (generic) (10523/12/4)
3.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
3.4% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 0301112b12113100 (4 x Stealc, 1 x Arechclient2)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://185.172.128.76/8681490a59ad0e34.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
350
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 06:07:57 UTC
Tags:
stealer stealc loader hijackloader arechclient2 backdoor
Link:
https://app.any.run/tasks/106e9a97-dbd7-403d-9c2a-3a0c874c3598

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
DNS request
Connection attempt
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Searching for the window
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 packed
Link:
https://www.filescan.io/uploads/662de74b75339da04fa41d57/reports/01f4506f-5c1a-4039-9d0f-5bce56056b4f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938
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/f2fba145-8304-4514-be0c-31864b185869
Result
Threat name:
Mars Stealer, RedLine, SectopRAT, Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1432773
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 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 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)
Writes to foreign memory regions
Yara detected Mars stealer
Yara detected RedLine Stealer
Yara detected SectopRAT
Yara detected Stealc
Yara detected UAC Bypass using CMSTP
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1432773 Sample: r8yinWndTf.exe Startdate: 28/04/2024 Architecture: WINDOWS Score: 100 69 note.padd.cn.com 2->69 71 fp2e7a.wpc.phicdn.net 2->71 73 2 other IPs or domains 2->73 97 Snort IDS alert for network traffic 2->97 99 Multi AV Scanner detection for domain / URL 2->99 101 Found malware configuration 2->101 103 16 other signatures 2->103 9 r8yinWndTf.exe 2 10 2->9         started        14 run.exe 2->14         started        signatures3 process4 dnsIp5 77 185.172.128.203, 49731, 80 NADYMSS-ASRU Russian Federation 9->77 79 185.172.128.228, 49730, 80 NADYMSS-ASRU Russian Federation 9->79 81 note.padd.cn.com 176.97.76.106, 49733, 80 INTRAFFIC-ASUA United Kingdom 9->81 57 C:\Users\user\AppData\Local\Temp\...\run.exe, PE32 9->57 dropped 59 C:\Users\user\AppData\Local\...\relay.dll, PE32 9->59 dropped 61 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 9->61 dropped 63 C:\Users\user\AppData\Local\Temp\u5r8.0.exe, PE32 9->63 dropped 111 Detected unpacking (overwrites its own PE header) 9->111 16 u5r8.0.exe 75 9->16         started        21 run.exe 6 9->21         started        23 WerFault.exe 21 16 9->23         started        113 Maps a DLL or memory area into another process 14->113 115 Found direct / indirect Syscall (likely to bypass EDR) 14->115 25 cmd.exe 14->25         started        file6 signatures7 process8 dnsIp9 67 185.172.128.76, 49732, 80 NADYMSS-ASRU Russian Federation 16->67 43 C:\Users\user\AppData\...\softokn3[1].dll, PE32 16->43 dropped 45 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 16->45 dropped 47 C:\Users\user\AppData\...\mozglue[1].dll, PE32 16->47 dropped 55 9 other files (5 malicious) 16->55 dropped 83 Multi AV Scanner detection for dropped file 16->83 85 Detected unpacking (changes PE section rights) 16->85 87 Detected unpacking (overwrites its own PE header) 16->87 95 9 other signatures 16->95 27 WerFault.exe 16->27         started        49 C:\Users\user\AppData\Roaming\...\relay.dll, PE32 21->49 dropped 51 C:\Users\user\AppData\...\UIxMarketPlugin.dll, PE32 21->51 dropped 89 Maps a DLL or memory area into another process 21->89 91 Found direct / indirect Syscall (likely to bypass EDR) 21->91 29 cmd.exe 4 21->29         started        53 C:\Users\user\AppData\Local\...\dvkawajmtic, PE32 25->53 dropped 93 Writes to foreign memory regions 25->93 33 conhost.exe 25->33         started        35 MSBuild.exe 25->35         started        file10 signatures11 process12 file13 65 C:\Users\user\AppData\Local\...\eeiipqtadqdgm, PE32 29->65 dropped 117 Writes to foreign memory regions 29->117 119 Found hidden mapped module (file has been removed from disk) 29->119 121 Maps a DLL or memory area into another process 29->121 37 MSBuild.exe 15 5 29->37         started        41 conhost.exe 29->41         started        signatures14 process15 dnsIp16 75 91.215.85.66, 15647, 49751, 9000 PINDC-ASRU Russian Federation 37->75 105 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 37->105 107 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 37->107 109 Tries to harvest and steal browser information (history, passwords, etc) 37->109 signatures17
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-04-28 06:06:05 UTC
File Type:
PE (Exe)
Extracted files:
64
AV detection:
17 of 22 (77.27%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qufrnxokj6yoy4fgbzjuxq6hlkwa6c3nfl2sm5gqt3d325o5ne4a._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat family:stealc discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/240428-gtqvpshh41/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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
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
SectopRAT
SectopRAT payload
Stealc
Malware Config
C2 Extraction:
http://185.172.128.76
Unpacked files
SH256 hash:
cfc2458a54578854cae748277b7527e4a2ff4a49aa4a55b885109fc334f73865
MD5 hash:
f24e8a42d193b41ec73c76a36c30ee0d
SHA1 hash:
4ceab3b79d49350c6d9575470cd273ec1d8b26cd
Link:
https://www.unpac.me/results/c88c8a45-c3c3-43be-a966-97c4dd9fcfba/
SH256 hash:
850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938
MD5 hash:
9f10349504fae0960f2cf133ccf21252
SHA1 hash:
73a89cb697803cc046362bc68027e184e83b4e45
Link:
https://www.unpac.me/results/c88c8a45-c3c3-43be-a966-97c4dd9fcfba/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/850b16ddca4f/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/850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938

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 850b16ddca4fb0ec70a60e534bc3c75aac0f0b6d2af52674d09ec7bd75dd6938

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2812849/
  
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::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetVolumeInformationA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleInputA
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleProcessList
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
KERNEL32.dll::GetTempPathA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceW

Comments