MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16. 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 3 File information Comments
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SHA256 hash: 97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16
SHA3-384 hash: 99d6efa0f31bb03cd53d8018137ac594a53a8800c530a47af4e85e662b1ee2c811b071dfc93370d857161a77ad63b70c
SHA1 hash: 80904e751b0e3f7e71e6ac3aecba8b285fc948cb
MD5 hash: 71890588b935c0e0f26a6e39bf507a2c
humanhash: foxtrot-bacon-artist-artist
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'133'056 bytes
First seen:2024-07-18 10:21:50 UTC
Last seen:2024-07-24 19:23:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 24576:tKMQ4gYFeO/YtbuKTqWWGQe5o2xYXvwY/CqCcvm3DeIu:Z3fe2YcKFtQe+M6Y2Us
Threatray 100 similar samples on MalwareBazaar
TLSH T13135339B03A600B1C6D6CB3FD48DA53C941998A9DE22D5D43EACA61F2055F723DB1F23
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 :
19
# of downloads :
441
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6698eccf936dc865ddc7762b
Tags:
Infostealer Stealth
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:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16
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:
Spark
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d199bd29-12f7-462d-b8a8-f66f52f3f944
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/1475839
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: 1475839 Sample: file.exe Startdate: 18/07/2024 Architecture: WINDOWS Score: 100 67 youtube-ui.l.google.com 2->67 69 www.youtube.com 2->69 71 33 other IPs or domains 2->71 85 Snort IDS alert for network traffic 2->85 87 Multi AV Scanner detection for domain / URL 2->87 89 Found malware configuration 2->89 91 18 other signatures 2->91 9 file.exe 36 2->9         started        14 explorti.exe 19 2->14         started        16 firefox.exe 2->16         started        signatures3 process4 dnsIp5 73 85.28.47.30, 49730, 49745, 80 GES-ASRU Russian Federation 9->73 75 77.91.77.81, 49731, 49744, 49747 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->75 49 C:\Users\user\AppData\...\JEGHCBAFBF.exe, PE32 9->49 dropped 51 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->51 dropped 53 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->53 dropped 63 12 other files (8 malicious) 9->63 dropped 105 Detected unpacking (changes PE section rights) 9->105 107 Tries to steal Mail credentials (via file / registry access) 9->107 109 Found many strings related to Crypto-Wallets (likely being stolen) 9->109 117 5 other signatures 9->117 18 cmd.exe 1 9->18         started        20 cmd.exe 2 9->20         started        77 77.91.77.82, 49742, 49746, 49748 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 14->77 55 C:\Users\user\AppData\...\ad13060d03.exe, PE32 14->55 dropped 57 C:\Users\user\AppData\...\ece99fe7e0.exe, PE32 14->57 dropped 59 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->59 dropped 61 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->61 dropped 111 Antivirus detection for dropped file 14->111 113 Tries to detect sandboxes and other dynamic analysis tools (window names) 14->113 115 Machine Learning detection for dropped file 14->115 119 3 other signatures 14->119 22 ece99fe7e0.exe 12 14->22         started        25 ad13060d03.exe 1 14->25         started        27 firefox.exe 16->27         started        file6 signatures7 process8 dnsIp9 30 JEGHCBAFBF.exe 4 18->30         started        34 conhost.exe 18->34         started        36 conhost.exe 20->36         started        93 Antivirus detection for dropped file 22->93 95 Detected unpacking (changes PE section rights) 22->95 97 Machine Learning detection for dropped file 22->97 99 Hides threads from debuggers 22->99 101 Multi AV Scanner detection for dropped file 25->101 103 Binary is likely a compiled AutoIt script file 25->103 38 firefox.exe 1 25->38         started        79 services.addons.mozilla.org 18.65.39.112, 443, 49825 MIT-GATEWAYSUS United States 27->79 81 youtube-ui.l.google.com 142.250.181.238, 443, 49772, 49773 GOOGLEUS United States 27->81 83 10 other IPs or domains 27->83 40 firefox.exe 27->40         started        42 firefox.exe 27->42         started        44 firefox.exe 27->44         started        signatures10 process11 file12 65 C:\Users\user\AppData\Local\...\explorti.exe, PE32 30->65 dropped 127 Antivirus detection for dropped file 30->127 129 Detected unpacking (changes PE section rights) 30->129 131 Machine Learning detection for dropped file 30->131 133 5 other signatures 30->133 46 explorti.exe 30->46         started        signatures13 process14 signatures15 121 Hides threads from debuggers 46->121 123 Tries to detect sandboxes / dynamic malware analysis system (registry check) 46->123 125 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 46->125
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16/
Threat name:
Win32.Trojan.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-07-18 10:22:11 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s73rzgtfcummaokc6mc6dn2rtlhk75n7iocsvtpfsfn3giolnila._file
Verdict:
malicious
Similar samples:
04a4ed789f8a254681cc65fe7361660373cc8a37b66992979c916bf4f990c8b9
Stealc
383442ecd4bff5dc709ad467a2852d0a7cb79c38c09b1f3e612bacfaa0ceb92f
Stealc
4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506
Stealc
aa50f9faafbf5561f5d7ad97e295a755a2ce4b53660dfb2f69a8defdbc9f41fa
Stealc
d11f036b752ca3eb57c3373e36f33237154dcd53e9ef00197c2dfc9721f08da9
Stealc
dc8c0ddd922c916fc7aa2c425f0a5a32abcf71f251d0cb813a9474af7df8be46
Stealc
e661bbdfc6c48109780e82bdc2c50399a75a95ea93aa265b1273878fda825368
Stealc
+ 90 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:funny discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240718-md8ngaxdrd/
Behaviour
Checks processor information in registry
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
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:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1a69bff8-c4af-4c02-a975-acabd2d38050
Unpacked files
SH256 hash:
97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16
MD5 hash:
71890588b935c0e0f26a6e39bf507a2c
SHA1 hash:
80904e751b0e3f7e71e6ac3aecba8b285fc948cb
Detections:
SUSP_XORed_URL_In_EXE
Create hunting rule
Link:
https://www.unpac.me/results/c8285716-0cca-4a8a-8c47-90d115c87573/
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/97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16

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)
Rule name:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information

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

Web download

Stealc

Executable exe 97f71c9a651518c03942f305e1b7519aceaff5bf43852acde5915bb321cb6a16

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/3050871/
  
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

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