MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146. 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 YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146
SHA3-384 hash: cb14a3730178c54082a29efd42e69fdfa154a5e036a40f29b78915f047bf7febc09d6e95a6de15d134333212b944b8d2
SHA1 hash: bbe86e87370c676843e6d5b4215d5b8a52847939
MD5 hash: 541a32fe5ac6b171816e5a05e1adbf5e
humanhash: sierra-violet-red-bluebird
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'533'376 bytes
First seen:2024-07-02 10:19:46 UTC
Last seen:2024-07-02 11:50:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:pqWh2IObsWxZQvQ1qtLL7ZVb3g7jj5HPfNN90FcCxJW/m:N2IObswctv8PlHPf6xE
Threatray 14 similar samples on MalwareBazaar
TLSH T176C533F332B23142D36644B64246F79E6CA88475C1AB8ED4DDA836341F3B38B9D68CD5
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://77.91.77.80/riana/super.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
299
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146.exe
Verdict:
Malicious activity
Analysis date:
2024-07-02 10:21:10 UTC
Tags:
stealer stealc
Link:
https://app.any.run/tasks/d68c7171-c0f4-4b94-aadd-4f2e24b7ce5d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6683d457251d4687fe42ddd1win10vpnfull_triage
Tags:
Execution Generic Infostealer Network Stealth Trojan Zpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/6683d4566b8dba248b484d88/reports/6c1765a2-1248-4ff1-bc6b-a09c537d2df6/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d1615f48-4da8-4bba-a5c8-c1c371abdcf4
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1466009
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has nameless sections
Potentially malicious time measurement code found
Sample uses string decryption to hide its real strings
Snort IDS alert 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 detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
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 Amadeys stealer DLL
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1466009 Sample: file.exe Startdate: 02/07/2024 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Found malware configuration 2->64 66 16 other signatures 2->66 9 file.exe 37 2->9         started        14 explorti.exe 2->14         started        16 explorti.exe 2->16         started        18 3 other processes 2->18 process3 dnsIp4 56 85.28.47.4, 49699, 55238, 80 GES-ASRU Russian Federation 9->56 58 77.91.77.81, 49700, 55237, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->58 46 C:\Users\user\AppData\...\IIEBGIDAAF.exe, PE32 9->46 dropped 48 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->48 dropped 50 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->50 dropped 52 11 other files (7 malicious) 9->52 dropped 90 Detected unpacking (changes PE section rights) 9->90 92 Tries to steal Mail credentials (via file / registry access) 9->92 94 Found many strings related to Crypto-Wallets (likely being stolen) 9->94 108 4 other signatures 9->108 20 cmd.exe 1 9->20         started        22 cmd.exe 2 9->22         started        96 Antivirus detection for dropped file 14->96 98 Tries to detect sandboxes and other dynamic analysis tools (window names) 14->98 100 Machine Learning detection for dropped file 14->100 110 2 other signatures 14->110 102 Hides threads from debuggers 16->102 104 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->104 106 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->106 file5 signatures6 process7 process8 24 IIEBGIDAAF.exe 4 20->24         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file9 44 C:\Users\user\AppData\Local\...\explorti.exe, PE32 24->44 dropped 82 Antivirus detection for dropped file 24->82 84 Detected unpacking (changes PE section rights) 24->84 86 Machine Learning detection for dropped file 24->86 88 5 other signatures 24->88 32 explorti.exe 16 24->32         started        signatures10 process11 dnsIp12 54 77.91.77.82, 55236, 55239, 55240 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 32->54 40 C:\Users\user\AppData\...\dca3d29d0f.exe, PE32 32->40 dropped 42 C:\Users\user\AppData\Local\...\random[1].exe, PE32 32->42 dropped 68 Hides threads from debuggers 32->68 70 Tries to detect sandboxes / dynamic malware analysis system (registry check) 32->70 72 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 32->72 37 dca3d29d0f.exe 12 32->37         started        file13 signatures14 process15 signatures16 74 Antivirus detection for dropped file 37->74 76 Multi AV Scanner detection for dropped file 37->76 78 Detected unpacking (changes PE section rights) 37->78 80 2 other signatures 37->80
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-02 10:20:12 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wz6rb2b24ipdbcav4cgyiew2kpotwa4npweqkimk5oyzgax74fda._file
Verdict:
malicious
Similar samples:
048802231eccee2a6db341d1a4e92b2b1671eb287da215ad35fcf2bad70fa700
Stealc
2e1662bc8b93a8cea652f916afa628ce5646e3b62d15cf584188f7df066dca73
Stealc
b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8
Stealc
d2105345952320d956616ccf74f73024420f7619f745c5c1e06a272bcd7199dc
Stealc
d963acee9e469ee9b95e16ca8d4f77412663b6f92928d885cd35c82595bea7ef
Stealc
e6c76393ad6b5516ed6e84adbd0687f981bf3c419e99d9c235a6948e63d383d4
Stealc
+ 4 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:jony discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240702-mc32la1grj/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://85.28.47.4
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8351088d-8029-4d39-9254-0105a25cbede
Unpacked files
SH256 hash:
b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146
MD5 hash:
541a32fe5ac6b171816e5a05e1adbf5e
SHA1 hash:
bbe86e87370c676843e6d5b4215d5b8a52847939
Link:
https://www.unpac.me/results/14b9fe72-a4a9-4f62-a4d2-1a604ab51a4a/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b67d10e83ae2/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/b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146

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:Borland
Create hunting rule
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Create hunting rule
Author:Elastic Security
Rule name:yara_template
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Stealc

Executable exe b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2917374/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/

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
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

Comments