MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506
SHA3-384 hash: b993e809733fd67b6c2cf23952dd1ef9aa551695b8b727d728f05390094e97004e66f728036efc6555f3226dfd95cfee
SHA1 hash: d79ffb809cb0d51314a7392007df635289f175b8
MD5 hash: a28948dbe563fa7f2fa559c7a84f2c99
humanhash: butter-seventeen-wisconsin-blossom
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'128'960 bytes
First seen:2024-07-18 04:02:28 UTC
Last seen:2024-07-24 13:34:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 24576:yhqNmSyVJqviZvoEV+bpojj7dxNMf3se3K6tr54mQgUpQC:PkvZVAoj3PNI3K6QzgI7
TLSH T134353369201E932EC0DB90F16C2A3AC53A8DC6D0076A87755F117BCB5BFD0599C2EF86
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 :
16
# of downloads :
360
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Packed.004befdb-9874516-0
Create hunting rule

PUA.Win.Packer.EnigmaProtector-9852682-0
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669893f7936dc865ddc76b8a
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc obfuscated packed packed shell32
Link:
https://www.filescan.io/uploads/669893f6f1068d66afbed0b7/reports/e2717ea0-05c2-4a2d-9d58-e8e98c8b8f41/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506
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/4ac5fc5b-2651-4347-a885-7fd19a00f753
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/1475628
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 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: 1475628 Sample: file.exe Startdate: 18/07/2024 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 91 Snort IDS alert for network traffic 2->91 93 Multi AV Scanner detection for domain / URL 2->93 95 Found malware configuration 2->95 97 16 other signatures 2->97 11 file.exe 36 2->11         started        16 explorti.exe 2->16         started        18 firefox.exe 1 2->18         started        signatures3 process4 dnsIp5 87 85.28.47.30, 49730, 49745, 80 GES-ASRU Russian Federation 11->87 89 77.91.77.81, 49732, 49742, 49747 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->89 63 C:\Users\user\AppData\...behaviorgraphDBFHDHJKK.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 115 Detected unpacking (changes PE section rights) 11->115 117 Tries to steal Mail credentials (via file / registry access) 11->117 119 Found many strings related to Crypto-Wallets (likely being stolen) 11->119 127 4 other signatures 11->127 20 cmd.exe 1 11->20         started        22 cmd.exe 2 11->22         started        121 Hides threads from debuggers 16->121 123 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->123 125 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->125 24 firefox.exe 18->24         started        file6 signatures7 process8 dnsIp9 27 GDBFHDHJKK.exe 4 20->27         started        31 conhost.exe 20->31         started        33 conhost.exe 22->33         started        77 youtube-ui.l.google.com 142.250.186.78, 443, 49775, 49776 GOOGLEUS United States 24->77 79 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 49777, 49785, 49788 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 107 Antivirus detection for dropped file 27->107 109 Detected unpacking (changes PE section rights) 27->109 111 Machine Learning detection for dropped file 27->111 113 5 other signatures 27->113 41 explorti.exe 19 27->41         started        signatures12 process13 dnsIp14 83 77.91.77.82, 49741, 49746, 49748 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 41->83 85 reddit.map.fastly.net 41->85 53 C:\Users\user\AppData\...\c5d5bd57f0.exe, PE32 41->53 dropped 55 C:\Users\user\AppData\...\4a475b52b9.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 99 Antivirus detection for dropped file 41->99 101 Detected unpacking (changes PE section rights) 41->101 103 Tries to detect sandboxes and other dynamic analysis tools (window names) 41->103 105 5 other signatures 41->105 46 4a475b52b9.exe 12 41->46         started        49 c5d5bd57f0.exe 1 41->49         started        file15 signatures16 process17 signatures18 129 Antivirus detection for dropped file 46->129 131 Detected unpacking (changes PE section rights) 46->131 133 Machine Learning detection for dropped file 46->133 135 Hides threads from debuggers 46->135 137 Binary is likely a compiled AutoIt script file 49->137 51 firefox.exe 1 49->51         started        process19
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506/
Threat name:
Win32.Trojan.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-07-18 04:03:05 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ijulph6f2kylqm3hmlon4orw7nrqc5wgfyyjnitjqgavvbgtouda._file
Verdict:
malicious
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-emccmaxfpb/
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
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
Checks BIOS information in registry
Checks computer location settings
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/51cfc857-d4fc-4044-990a-c396d73d9fec
Unpacked files
SH256 hash:
4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506
MD5 hash:
a28948dbe563fa7f2fa559c7a84f2c99
SHA1 hash:
d79ffb809cb0d51314a7392007df635289f175b8
Detections:
SUSP_XORed_URL_In_EXE
Create hunting rule
Link:
https://www.unpac.me/results/0c3b5927-a0d0-4cbb-8f13-3a0d9c2aac42/
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/4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506

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 4268b79fc5d2b0b8336762dcde3a36fb630176c62e3096a26981815a84d37506

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3047216/
  
URLhaus
https://urlhaus.abuse.ch/url/3047209/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/3047215/
  
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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