MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d. 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


MarsStealer


Vendor detections: 16


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

SHA256 hash: c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d
SHA3-384 hash: 9a92fd3dea642647cfe4115562369e56f24a9e9ec88c0d394aa88e79de3088015f79331bed529e1293b257ca4c10303a
SHA1 hash: 962efe904a67f667065350cf5a865d22a8d9b563
MD5 hash: 58ecb697be82278aeb969f9c2c12e1d4
humanhash: mars-timing-nineteen-robert
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'496'512 bytes
First seen:2024-07-06 09:03:32 UTC
Last seen:2024-07-06 12:16:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:TEDHJVUOgKGNINLgSGocThMd/q0wr0JL/JlxfD+wE31PaqJs:TEzPUOKsUM/gSJpEha
TLSH T122C533ADE0435685C99989F047F2CFD0BF9A9398A2D8815E938F88DEDC115D34A5F0B3
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 MarsStealer


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence

File Origin
# of uploads :
6
# of downloads :
564
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d.exe
Verdict:
Malicious activity
Analysis date:
2024-07-06 09:07:01 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/e48d64f0-1254-44f0-86e0-78a4a98a4221

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=668909cc14220722c976950dwin10vpnfull_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/668908840bf5978c0b156059/reports/bb261a65-7e7e-4c20-8c8c-08bd7cd90a35/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d
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/3300ba95-83a6-40fd-b657-4964959acd60
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/1468513
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 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: 1468513 Sample: file.exe Startdate: 06/07/2024 Architecture: WINDOWS Score: 100 86 Snort IDS alert for network traffic 2->86 88 Multi AV Scanner detection for domain / URL 2->88 90 Found malware configuration 2->90 92 15 other signatures 2->92 11 file.exe 36 2->11         started        16 explorti.exe 2->16         started        18 explorti.exe 2->18         started        20 4 other processes 2->20 process3 dnsIp4 78 85.28.47.30, 49730, 49747, 80 GES-ASRU Russian Federation 11->78 80 77.91.77.81, 49737, 49744, 49746 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->80 62 C:\Users\user\AppData\...\HDAFBGIJKE.exe, PE32 11->62 dropped 64 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->64 dropped 66 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->66 dropped 68 11 other files (7 malicious) 11->68 dropped 118 Detected unpacking (changes PE section rights) 11->118 120 Tries to steal Mail credentials (via file / registry access) 11->120 122 Found many strings related to Crypto-Wallets (likely being stolen) 11->122 130 4 other signatures 11->130 22 cmd.exe 1 11->22         started        24 cmd.exe 2 11->24         started        124 Hides threads from debuggers 16->124 126 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->126 128 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->128 file5 signatures6 process7 process8 26 HDAFBGIJKE.exe 4 22->26         started        30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        file9 60 C:\Users\user\AppData\Local\...\explorti.exe, PE32 26->60 dropped 110 Antivirus detection for dropped file 26->110 112 Detected unpacking (changes PE section rights) 26->112 114 Machine Learning detection for dropped file 26->114 116 6 other signatures 26->116 34 explorti.exe 19 26->34         started        signatures10 process11 dnsIp12 76 77.91.77.82, 49743, 49745, 49748 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 34->76 56 C:\Users\user\AppData\...\a2e340cf92.exe, PE32 34->56 dropped 58 C:\Users\user\AppData\Local\...\random[1].exe, PE32 34->58 dropped 94 Antivirus detection for dropped file 34->94 96 Detected unpacking (changes PE section rights) 34->96 98 Tries to detect sandboxes and other dynamic analysis tools (window names) 34->98 100 5 other signatures 34->100 39 a2e340cf92.exe 12 34->39         started        42 cmd.exe 13 34->42         started        file13 signatures14 process15 signatures16 102 Antivirus detection for dropped file 39->102 104 Detected unpacking (changes PE section rights) 39->104 106 Machine Learning detection for dropped file 39->106 108 Hides threads from debuggers 39->108 44 chrome.exe 1 42->44         started        47 conhost.exe 42->47         started        process17 dnsIp18 82 192.168.2.4, 443, 49723, 49724 unknown unknown 44->82 84 239.255.255.250 unknown Reserved 44->84 49 chrome.exe 44->49         started        52 chrome.exe 44->52         started        54 chrome.exe 6 44->54         started        process19 dnsIp20 70 142.250.185.132, 443, 49798 GOOGLEUS United States 49->70 72 142.250.185.174, 443, 49892, 49894 GOOGLEUS United States 49->72 74 10 other IPs or domains 49->74
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-06 09:04:13 UTC
File Type:
PE (Exe)
AV detection:
26 of 37 (70.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdjkvip4glvlc4gjn6kyqsuf4r5aex4nos3gvhttchf2t3ui2egq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:nice discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240706-k1k5kstbpp/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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
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:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c0106cab-83e1-4865-a895-bb9934d28d05
Unpacked files
SH256 hash:
c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d
MD5 hash:
58ecb697be82278aeb969f9c2c12e1d4
SHA1 hash:
962efe904a67f667065350cf5a865d22a8d9b563
Link:
https://www.unpac.me/results/9e4dfcca-d9c7-4054-8f5f-61d0a15ffa97/
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/c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d

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

MarsStealer

Executable exe c8d2aaa1fc32eab170c96f95884a85e47a025f8d74b66a9e7311cba9ee88d10d

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2934724/
  
URLhaus
https://urlhaus.abuse.ch/url/2920704/

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