MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01
SHA3-384 hash: 19a02ee316a769b60f73f3f37eccf7ff9448b15b157da405fc530bdc309ce525f47105aa1fbaf9b7b16c8ea881f940bd
SHA1 hash: 89d79b84addb51db2bdfeb90c7780dda23fabd2d
MD5 hash: 7eac5517949c3ba823c0d05f296bd953
humanhash: maryland-east-pluto-hot
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'483'200 bytes
First seen:2024-07-10 08:38:43 UTC
Last seen:2024-07-10 09:26:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:81s8BuadFFjSnGgQWYec225D4JnoSIOXEUMF9+wKm1fMkK:2BP9SnGrfeGh+onOXEdf6m1Ek
TLSH T15AB53366FF5A9D08E06F8C766FCE3CC3E36621CEF8102D168269E584855A1DD0673CA7
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://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
9
# of downloads :
415
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01.exe
Verdict:
Malicious activity
Analysis date:
2024-07-10 08:40:25 UTC
Tags:
stealer stealc antivm loader
Link:
https://app.any.run/tasks/154e5095-20b1-4d4a-b5e9-2374cf0968e4

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:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668e48a7ec881b573673ff51win7simulatehigh_evasion
Tags:
Stealth Zpack
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/668e48a8fa6ffdddde4791b3/reports/71d2ab0b-282b-4605-aab4-1b697988e071/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01
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/2c09960d-e849-468d-af88-39322c8dcf70
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/1470681
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Binary is likely a compiled AutoIt script file
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
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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1470681 Sample: file.exe Startdate: 10/07/2024 Architecture: WINDOWS Score: 100 71 youtube-ui.l.google.com 2->71 73 www.youtube.com 2->73 75 33 other IPs or domains 2->75 89 Snort IDS alert for network traffic 2->89 91 Multi AV Scanner detection for domain / URL 2->91 93 Found malware configuration 2->93 95 17 other signatures 2->95 11 file.exe 37 2->11         started        16 explorti.exe 2->16         started        18 firefox.exe 1 2->18         started        signatures3 process4 dnsIp5 85 85.28.47.30, 49711, 56413, 80 GES-ASRU Russian Federation 11->85 87 77.91.77.81, 56403, 56411, 56414 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->87 63 C:\Users\user\AppData\...\DGHIDAFCGI.exe, PE32 11->63 dropped 65 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->65 dropped 67 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->67 dropped 69 12 other files (8 malicious) 11->69 dropped 113 Detected unpacking (changes PE section rights) 11->113 115 Tries to steal Mail credentials (via file / registry access) 11->115 117 Found many strings related to Crypto-Wallets (likely being stolen) 11->117 125 4 other signatures 11->125 20 cmd.exe 1 11->20         started        22 cmd.exe 2 11->22         started        119 Hides threads from debuggers 16->119 121 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->121 123 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->123 24 firefox.exe 217 18->24         started        file6 signatures7 process8 dnsIp9 27 DGHIDAFCGI.exe 4 20->27         started        31 conhost.exe 20->31         started        33 conhost.exe 22->33         started        77 youtube-ui.l.google.com 172.217.16.206, 443, 56439, 56440 GOOGLEUS United States 24->77 79 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 56441, 56447, 56450 GOOGLEUS United States 24->79 81 9 other IPs or domains 24->81 35 firefox.exe 24->35         started        37 firefox.exe 24->37         started        39 firefox.exe 24->39         started        process10 file11 61 C:\Users\user\AppData\Local\...\explorti.exe, PE32 27->61 dropped 105 Antivirus detection for dropped file 27->105 107 Detected unpacking (changes PE section rights) 27->107 109 Machine Learning detection for dropped file 27->109 111 5 other signatures 27->111 41 explorti.exe 19 27->41         started        signatures12 process13 dnsIp14 83 77.91.77.82, 56410, 56412, 56415 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 41->83 53 C:\Users\user\AppData\...\8a37ccefc5.exe, PE32 41->53 dropped 55 C:\Users\user\AppData\...\62dc35afaf.exe, PE32 41->55 dropped 57 C:\Users\user\AppData\Local\...\random[1].exe, PE32 41->57 dropped 59 C:\Users\user\AppData\Local\...\random[1].exe, PE32 41->59 dropped 97 Antivirus detection for dropped file 41->97 99 Detected unpacking (changes PE section rights) 41->99 101 Tries to detect sandboxes and other dynamic analysis tools (window names) 41->101 103 5 other signatures 41->103 46 62dc35afaf.exe 12 41->46         started        49 8a37ccefc5.exe 1 41->49         started        file15 signatures16 process17 signatures18 127 Antivirus detection for dropped file 46->127 129 Multi AV Scanner detection for dropped file 46->129 131 Detected unpacking (changes PE section rights) 46->131 133 Hides threads from debuggers 46->133 135 Binary is likely a compiled AutoIt script file 49->135 137 Machine Learning detection for dropped file 49->137 51 firefox.exe 1 49->51         started        process19
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-10 08:39:05 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6geymcnoptofu6rc4emk6yvrzsixv4rglyks42sbxau7hr6fyaq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240710-kj93daxfmm/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
AutoIT Executable
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Checks computer location settings
Deletes itself
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://85.28.47.30
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/50ae164a-3f7a-4ac2-a42e-8609c097a917
Unpacked files
SH256 hash:
4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01
MD5 hash:
7eac5517949c3ba823c0d05f296bd953
SHA1 hash:
89d79b84addb51db2bdfeb90c7780dda23fabd2d
Link:
https://www.unpac.me/results/d54033bd-1690-4d80-abfe-a57602f0c365/
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/4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01

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:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Stealc

Executable exe 4f8c4c304d73e6e2d3d11708c57b158e648bd79132f0a973520dc14f9e3e2e01

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2945045/
  
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