MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589
SHA3-384 hash: deed51bf263026d8339527c8b50b8bd4d6df1be68fca177b7b27e20697efe889112aa4503e91c98cd3daee9ddec4f038
SHA1 hash: 71df9dc9877746fa0843d59e60cdb8f3ca6844fa
MD5 hash: 513f440175158163f05b8773e503790e
humanhash: eighteen-pennsylvania-timing-eight
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'902'016 bytes
First seen:2024-09-18 11:20:38 UTC
Last seen:2024-09-18 11:20:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:B+t+JB5RCH34vK+467dnkDbU7wLRmV0a3dGLK:BrJB5RCH3oKb67dnuhRmV0aR
TLSH T145D53952B508B5CFD48F23BAA467CD835D5D42B90B6148C3A86CB6BE7EA7CC111B5C38
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)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://185.215.113.100/steam/random.exe

Intelligence

File Origin
# of uploads :
3
# of downloads :
544
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-18 11:21:01 UTC
Tags:
stealer stealc loader themida opendir amadey botnet autoit
Link:
https://app.any.run/tasks/f51cf02f-0b92-4b6e-b817-9cb8addd03f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66eab7a05d6a2b58599aa441
Tags:
Execution Generic Infostealer Network Stealth Trojan
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66eab79fbb9fe02b41b48e14/reports/bf7e12ce-0266-480a-9a87-0433547573f0/overview
Verdict:
Malicious
Labled as:
Tedy.Generic
Link:
https://www.hybrid-analysis.com/sample/4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589
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/3020a854-b2c0-457e-8413-2c3d53a72781
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1513074
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
Creates multiple autostart registry keys
Detected unpacking (changes PE section rights)
Found API chain indicative of debugger detection
Found API chain indicative of sandbox detection
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
PE file contains section with special chars
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Suspicious File Creation In Uncommon AppData Folder
Suricata IDS alerts 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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1513074 Sample: file.exe Startdate: 18/09/2024 Architecture: WINDOWS Score: 100 67 Multi AV Scanner detection for domain / URL 2->67 69 Suricata IDS alerts for network traffic 2->69 71 Found malware configuration 2->71 73 16 other signatures 2->73 8 file.exe 38 2->8         started        13 svoutse.exe 3 20 2->13         started        15 svoutse.exe 2->15         started        17 5 other processes 2->17 process3 dnsIp4 61 185.215.113.100, 49736, 49741, 49743 WHOLESALECONNECTIONSNL Portugal 8->61 63 185.215.113.103, 49730, 49738, 49744 WHOLESALECONNECTIONSNL Portugal 8->63 43 C:\Users\user\AppData\RoamingFIJKEHJJDA.exe, PE32 8->43 dropped 45 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->45 dropped 47 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->47 dropped 57 12 other files (8 malicious) 8->57 dropped 99 Detected unpacking (changes PE section rights) 8->99 101 Tries to steal Mail credentials (via file / registry access) 8->101 103 Found many strings related to Crypto-Wallets (likely being stolen) 8->103 115 6 other signatures 8->115 19 cmd.exe 1 8->19         started        21 cmd.exe 1 8->21         started        65 31.41.244.10, 49740, 49742, 49745 AEROEXPRESS-ASRU Russian Federation 13->65 49 C:\Users\user\AppData\...\607373c8ce.exe, PE32 13->49 dropped 51 C:\Users\user\AppData\...\6b6c429b0d.exe, PE32 13->51 dropped 53 C:\Users\user\AppData\...\01f0e1ea45.exe, PE32 13->53 dropped 55 C:\Users\user\AppData\Local\...\random[1].exe, PE32 13->55 dropped 105 Creates multiple autostart registry keys 13->105 107 Hides threads from debuggers 13->107 109 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->109 23 6b6c429b0d.exe 13 13->23         started        26 01f0e1ea45.exe 13 13->26         started        28 607373c8ce.exe 13->28         started        111 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 15->111 113 Binary is likely a compiled AutoIt script file 17->113 file5 signatures6 process7 signatures8 30 GIDAECGDAF.exe 4 19->30         started        34 conhost.exe 19->34         started        36 RoamingFIJKEHJJDA.exe 21->36         started        38 conhost.exe 21->38         started        75 Antivirus detection for dropped file 23->75 77 Multi AV Scanner detection for dropped file 23->77 79 Detected unpacking (changes PE section rights) 23->79 89 3 other signatures 23->89 81 Machine Learning detection for dropped file 26->81 83 Tries to evade debugger and weak emulator (self modifying code) 26->83 85 Hides threads from debuggers 26->85 87 Binary is likely a compiled AutoIt script file 28->87 process9 file10 59 C:\Users\user\AppData\Local\...\svoutse.exe, PE32 30->59 dropped 117 Antivirus detection for dropped file 30->117 119 Detected unpacking (changes PE section rights) 30->119 121 Machine Learning detection for dropped file 30->121 131 5 other signatures 30->131 40 svoutse.exe 30->40         started        123 Multi AV Scanner detection for dropped file 36->123 125 Binary is likely a compiled AutoIt script file 36->125 127 Found API chain indicative of debugger detection 36->127 129 Found API chain indicative of sandbox detection 36->129 signatures11 process12 signatures13 91 Antivirus detection for dropped file 40->91 93 Detected unpacking (changes PE section rights) 40->93 95 Machine Learning detection for dropped file 40->95 97 4 other signatures 40->97
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-09-18 11:21:04 UTC
File Type:
PE (Exe)
AV detection:
16 of 38 (42.11%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jjnwkjfui4slxvdwzxjku65amj3kjb7y5aaislgklsgsbknvsweq._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:rave discovery evasion stealer
Link:
https://tria.ge/reports/240918-nfzn1sxeqf/
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://185.215.113.103
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/09c8f80a-62d2-4f88-8e24-cc8ad821e506
Unpacked files
SH256 hash:
4a0a528e39fddb03fe180f1b74c694af98391b653a4b4c03f7f9d7280a25b9c9
MD5 hash:
a011c03bf8f9defac6edc9ed18f126f9
SHA1 hash:
c323059835e7819414fb83ed755c416411a6607a
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/9a19db2f-34f9-4d79-90e8-c5d33093f199/
SH256 hash:
4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589
MD5 hash:
513f440175158163f05b8773e503790e
SHA1 hash:
71df9dc9877746fa0843d59e60cdb8f3ca6844fa
Link:
https://www.unpac.me/results/9a19db2f-34f9-4d79-90e8-c5d33093f199/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a5b6524b447/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Web download

MarsStealer

Executable exe 4a5b6524b44724bbd476cdd2aa7ba06276a487f8e800892cca5c8d20a9b59589

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3171133/

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

Comments