MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133. 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: 18


Intelligence 18 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133
SHA3-384 hash: 6757eda2dbb296fa5abb211d090c95748a353c399a0cc6acd07353ae5c94a7fdb3786aacd70ebc84940bde4c41b7fab6
SHA1 hash: 07a76c5589a3c9a14df35ed2f62737ce68f38f98
MD5 hash: fd4d83b539cda4ea532a32d30cdb3810
humanhash: tango-avocado-angel-low
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'839'040 bytes
First seen:2024-09-18 00:14:13 UTC
Last seen:2024-09-18 00:14:51 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:b3qNhQutcEBo+WXBrCpbo1BL/93e+t2PLlB9wuPdkPD:DqNhQkcN+WRepc1BLl3e+t2PRB9JPK
TLSH T1FCD53B96B50576CFF0CA2BF9D427CE429A5D03F5871048C7A86C757ABDA3CC121B6CA8
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 :
412
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 00:15:52 UTC
Tags:
stealer stealc loader themida opendir amadey botnet autoit
Link:
https://app.any.run/tasks/f36ac6fb-bb51-45ef-b7d0-7796be4886d3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.21456.21259.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ea1b8a5d6a2b58599a9dda
Tags:
Infostealer Network Stealth
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66ea1b88ede3a801b07ec689/reports/6023f38a-a0a8-4c67-bf78-a049b6cac20a/overview
Verdict:
Malicious
Labled as:
Tedy.Generic
Link:
https://www.hybrid-analysis.com/sample/b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ce600598-a204-4a25-ae8a-158093d21bad
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1512913
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
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Potentially malicious time measurement code found
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: 1512913 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 17 other signatures 2->73 8 file.exe 39 2->8         started        13 svoutse.exe 3 20 2->13         started        15 6a3df7ecef.exe 2->15         started        17 5 other processes 2->17 process3 dnsIp4 61 185.215.113.103, 49704, 49719, 49726 WHOLESALECONNECTIONSNL Portugal 8->61 63 185.215.113.100, 49712, 49715, 49717 WHOLESALECONNECTIONSNL Portugal 8->63 43 C:\Users\user\AppData\RoamingEHJKFCGHID.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, 49714, 49716, 49718 AEROEXPRESS-ASRU Russian Federation 13->65 49 C:\Users\user\AppData\...\65323bad34.exe, PE32 13->49 dropped 51 C:\Users\user\AppData\...\ca4f8149a6.exe, PE32 13->51 dropped 53 C:\Users\user\AppData\...\6a3df7ecef.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 ca4f8149a6.exe 13 13->23         started        26 6a3df7ecef.exe 13 13->26         started        28 65323bad34.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 CGCFCFBKFC.exe 4 19->30         started        34 conhost.exe 19->34         started        36 RoamingEHJKFCGHID.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 6 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/b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2024-09-18 00:15:13 UTC
File Type:
PE (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wk2b4geyk7w7weagyhgpzyvluhxjpocb62vjktfu6rffhdki2ezq._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:c7817d botnet:rave credential_access discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240918-ajxf6ssgmn/
Behaviour
Checks processor information in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
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
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
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Stealc
Malware Config
C2 Extraction:
http://185.215.113.103
http://31.41.244.10
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0c28b208-7854-40db-b781-643981239386
Unpacked files
SH256 hash:
69e010c9c200c62b723fd791b360d183ec595f5f0ae89788a53ef8f548c4b080
MD5 hash:
0f66e72a3e7a9821b7c831c9506d9b40
SHA1 hash:
e88fb17e1e3decce7bda9f964d8e2e1204012f81
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/c5443ac6-9488-4005-8805-c33fb9b4afa4/
SH256 hash:
b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133
MD5 hash:
fd4d83b539cda4ea532a32d30cdb3810
SHA1 hash:
07a76c5589a3c9a14df35ed2f62737ce68f38f98
Link:
https://www.unpac.me/results/c5443ac6-9488-4005-8805-c33fb9b4afa4/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b2b41e189857/report/overview.html
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/b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133

File information

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

Web download

MarsStealer

Executable exe b2b41e189857edfb1006c1ccfce2aba1ee97b841f6aa954cb4f44a538d48d133

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3171133/
  
URLhaus
https://urlhaus.abuse.ch/url/3173969/

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

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