MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe. 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: 16


Intelligence 16 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe
SHA3-384 hash: da4bf6871f4fa056abf498f0b8f469966e996d2848bca6328b5fe55ef095a22928cc939879812282beeafb9ea6919b8d
SHA1 hash: dadb11d90adb38dc798acae755004ed8e93b088f
MD5 hash: b6f6e51f0efa952f3ffcaab9dd5895db
humanhash: seventeen-zulu-beer-two
File name:b6f6e51f0efa952f3ffcaab9dd5895db.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:712'192 bytes
First seen:2024-10-30 18:45:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9972752d76c4469a480fbf42fd02d1a2 (3 x Stealc)
ssdeep 12288:r9p/R7g6IMdSZCNSSumwQypEun3a8N7yCqrT8O8EntuY9w+f4sij/I+7Nj:r9bqcJNHuNQypEun3aVCqrI6P9w+4jZj
Threatray 68 similar samples on MalwareBazaar
TLSH T1DEE412007591E871C95256709828C6F41B3FBCB29E6479AF3B697FBF3970381A6B2311
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon 0204001128082000 (1 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://45.91.200.39/eaa194fa594ff9c2.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://45.91.200.39/eaa194fa594ff9c2.php https://threatfox.abuse.ch/ioc/1340117/

Intelligence

File Origin
# of uploads :
1
# of downloads :
450
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b6f6e51f0efa952f3ffcaab9dd5895db.exe
Verdict:
Malicious activity
Analysis date:
2024-10-30 18:47:32 UTC
Tags:
stealer stealc loader rust miner
Link:
https://app.any.run/tasks/1ea50072-b564-4c43-89fd-0a965dc8c30a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67227ef08d23d904913206e8
Tags:
powershell cobalt lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending an HTTP GET request
Creating a 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
Сreating synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/67227eec1856d16cb60f94fe/reports/f98a8829-60d0-4a62-9414-a3bdde1528cf/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe
Result
Verdict:
UNKNOWN
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/cdcb219b-591d-4d57-bdda-b1529f0a0625
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1545664
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
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 malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies power options to not sleep / hibernate
Modifies the hosts file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Disable power options
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Stop EventLog
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
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 powercfg.exe to modify the power settings
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1545664 Sample: b4s45TboUL.exe Startdate: 30/10/2024 Architecture: WINDOWS Score: 100 71 198.187.3.20.in-addr.arpa 2->71 73 gosp.clinicavertigen.com 2->73 81 Suricata IDS alerts for network traffic 2->81 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 15 other signatures 2->87 10 b4s45TboUL.exe 19 2->10         started        15 updater.exe 2->15         started        17 svchost.exe 3 8 2->17         started        signatures3 process4 dnsIp5 75 45.91.200.39, 49730, 49738, 80 ON-LINE-DATAServerlocation-NetherlandsDrontenNL Netherlands 10->75 77 gosp.clinicavertigen.com 87.106.236.48, 443, 49731 ONEANDONE-ASBrauerstrasse48DE Germany 10->77 65 C:\Users\user\AppData\...\chrome_131[1].exe, PE32+ 10->65 dropped 67 C:\ProgramData\chrome.dll, PE32 10->67 dropped 69 C:\ProgramData\HIIDGCGCBF.exe, PE32+ 10->69 dropped 97 Detected unpacking (changes PE section rights) 10->97 99 Detected unpacking (overwrites its own PE header) 10->99 101 Tries to steal Mail credentials (via file / registry access) 10->101 109 6 other signatures 10->109 19 cmd.exe 1 10->19         started        21 WerFault.exe 21 16 10->21         started        103 Multi AV Scanner detection for dropped file 15->103 105 Query firmware table information (likely to detect VMs) 15->105 107 Tries to detect sandboxes and other dynamic analysis tools (window names) 15->107 111 4 other signatures 15->111 24 WerFault.exe 2 17->24         started        file6 signatures7 process8 file9 26 HIIDGCGCBF.exe 1 3 19->26         started        30 conhost.exe 19->30         started        59 C:\ProgramData\Microsoft\...\Report.wer, Unicode 21->59 dropped process10 file11 61 C:\ProgramDatabehaviorgraphoogle\Chrome\updater.exe, PE32+ 26->61 dropped 63 C:\Windows\System32\drivers\etc\hosts, ASCII 26->63 dropped 89 Multi AV Scanner detection for dropped file 26->89 91 Query firmware table information (likely to detect VMs) 26->91 93 Uses powercfg.exe to modify the power settings 26->93 95 7 other signatures 26->95 32 powershell.exe 23 26->32         started        35 cmd.exe 1 26->35         started        37 sc.exe 1 26->37         started        39 12 other processes 26->39 signatures12 process13 signatures14 79 Loading BitLocker PowerShell Module 32->79 41 WmiPrvSE.exe 32->41         started        43 conhost.exe 32->43         started        45 conhost.exe 35->45         started        47 wusa.exe 35->47         started        49 conhost.exe 37->49         started        51 conhost.exe 39->51         started        53 conhost.exe 39->53         started        55 conhost.exe 39->55         started        57 9 other processes 39->57 process15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pp6eq3uuvlgjb6wban4el547slyeudnw7o5lt2velrfp47ikeh7a._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
shellcode_loader_002
Create hunting rule
Similar samples:
019e55c6a1f2817a0bddee7c8aa8ee2bc73c2d6ac5468ed2bb1079e13665988a
Stealc
486c9bb7cd3ea23cc682ebc3b13aa40678a4450c3a9d22f8c45fad43f1a82271
Stealc
52ce96aeb7d4062ffcce2a92bd41012f4198bc8d1fe7242b3de84434c6eb4c84
Stealc
54fa4544762fb14d407756fad69201bfaccc8db821a94e63079531d556cddeb1
Stealc
9a55faec755f08d982ab8602bf4a6d22f78603658bd93904bfce769ddb9bf5c7
Stealc
eb180e93ee49995a5303331261cc1ed3d1b07c10e6d7f1545277a3b674731f20
Stealc
error
Stealc
+ 58 additional samples on MalwareBazaar
Result
Malware family:
xmrig
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:xmrig botnet:logsdiller credential_access discovery evasion execution miner persistence spyware stealer themida trojan
Link:
https://tria.ge/reports/241030-xelv7sxrev/
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Launches sc.exe
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks whether UAC is enabled
Power Settings
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Themida packer
Unsecured Credentials: Credentials In Files
Command and Scripting Interpreter: PowerShell
Creates new service(s)
Downloads MZ/PE file
Drops file in Drivers directory
Stops running service(s)
Identifies VirtualBox via ACPI registry values (likely anti-VM)
XMRig Miner payload
Stealc
Stealc family
Xmrig family
xmrig
Malware Config
C2 Extraction:
http://45.91.200.39
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0c01872a-ffb2-43be-a38b-34970e49fde9
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
Link:
https://www.unpac.me/results/13701bea-b4ca-4585-9e04-caaebe2f9431/
SH256 hash:
ea5a2b0dc5a5956ffa8dddb25bce907188a74d3fa5379ac892e0fe003142685b
MD5 hash:
002e99251af7261c180dc855e8576b2f
SHA1 hash:
7b8763b1cdf49cdbae699326826da6db2e12b3d6
Detections:
stealc
Create hunting rule
detect_Mars_Stealer
Create hunting rule
Link:
https://www.unpac.me/results/13701bea-b4ca-4585-9e04-caaebe2f9431/
Parent samples :
0aef309c87d03d0dc18d38c8298f05f63c3b4a62d99857da20c8a0cece952781
ed13ed75ce5fbae3438c89cfdf74ee57d67b03669ef151e9fc3b9a461d41494b
7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe
SH256 hash:
7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe
MD5 hash:
b6f6e51f0efa952f3ffcaab9dd5895db
SHA1 hash:
dadb11d90adb38dc798acae755004ed8e93b088f
Link:
https://www.unpac.me/results/13701bea-b4ca-4585-9e04-caaebe2f9431/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7bfc486e94aa/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/7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe

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 7bfc486e94aacc90fac1037845f79f92f04a0db6fbbab9eaa45c4afe7d0a21fe

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3243375/
  
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::CreateProcessW
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetDiskFreeSpaceW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleInputA
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::GetConsoleAliasExesA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::GetFileAttributesW
KERNEL32.dll::GetTempFileNameW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

Comments