MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a
SHA3-384 hash: 43d428e8acab4556aea96324a810b12579c42083b4a54a0c80a063cf98cbd98d5531b316f181646d49cd005c020b28b5
SHA1 hash: 861fe5e76080402c120ea546ef335a25dd919c7a
MD5 hash: 21b886639fc26662ffea9267e9e10eb2
humanhash: michigan-pasta-lima-robert
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:1'780'224 bytes
First seen:2024-08-27 11:52:58 UTC
Last seen:2024-08-27 13:21:57 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:RYOCereC2WOdjpCbVAkmKXgwiPkFjxvzvyM0JFb:RZrL2WOubVAkmKXrR52MG
TLSH T1C98533196C52F767D927293EACBC5D88E36235830CA1A31FD9BFB5F5C2172521A53830
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://31.41.244.11/steam/random.exe

Intelligence

File Origin
# of uploads :
9
# of downloads :
390
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-27 11:55:53 UTC
Tags:
stealer stealc loader themida amadey botnet
Link:
https://app.any.run/tasks/32edfe99-dba4-40c4-93fd-fcd2892babe7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.11417.26510.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66cdbe20b2a4681a7296b632
Tags:
Execution Generic Infostealer Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66cdbe2058cbff3e3abde020/reports/f08213ff-69f9-4408-bd43-7d7b0fce8281/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a
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/fad51ce1-2687-4ba9-a64d-a2cd71d91b84
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1499729
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 dropped file
PE file contains section with special chars
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: 1499729 Sample: file.exe Startdate: 27/08/2024 Architecture: WINDOWS Score: 100 96 Suricata IDS alerts for network traffic 2->96 98 Found malware configuration 2->98 100 Antivirus detection for URL or domain 2->100 102 12 other signatures 2->102 8 file.exe 38 2->8         started        13 svoutse.exe 19 2->13         started        15 svoutse.exe 2->15         started        17 3 other processes 2->17 process3 dnsIp4 72 185.215.113.100, 49704, 49718, 80 WHOLESALECONNECTIONSNL Portugal 8->72 74 31.41.244.11, 49712, 49715, 49717 AEROEXPRESS-ASRU Russian Federation 8->74 56 C:\Users\user\AppData\RoamingHJJKFBGCFH.exe, PE32 8->56 dropped 58 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->58 dropped 60 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->60 dropped 70 12 other files (8 malicious) 8->70 dropped 128 Detected unpacking (changes PE section rights) 8->128 130 Tries to steal Mail credentials (via file / registry access) 8->130 132 Found many strings related to Crypto-Wallets (likely being stolen) 8->132 140 6 other signatures 8->140 19 cmd.exe 1 8->19         started        21 cmd.exe 1 8->21         started        76 31.41.244.10, 49714, 49716, 49719 AEROEXPRESS-ASRU Russian Federation 13->76 62 C:\Users\user\AppData\...\2255c6cb9e.exe, PE32 13->62 dropped 64 C:\Users\user\AppData\...\44b5abd561.exe, PE32 13->64 dropped 66 C:\Users\user\AppData\Local\...\random[1].exe, PE32 13->66 dropped 68 C:\Users\user\AppData\Local\...\random[1].exe, PE32 13->68 dropped 134 Hides threads from debuggers 13->134 136 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->136 138 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->138 23 44b5abd561.exe 13 13->23         started        26 2255c6cb9e.exe 13->26         started        78 192.168.2.5, 443, 49703, 49704 unknown unknown 17->78 80 239.255.255.250 unknown Reserved 17->80 28 msedge.exe 17->28         started        31 msedge.exe 17->31         started        33 msedge.exe 17->33         started        35 4 other processes 17->35 file5 signatures6 process7 dnsIp8 37 userIEHCBAFIDA.exe 4 19->37         started        41 conhost.exe 19->41         started        43 RoamingHJJKFBGCFH.exe 21->43         started        45 conhost.exe 21->45         started        118 Multi AV Scanner detection for dropped file 23->118 120 Detected unpacking (changes PE section rights) 23->120 122 Tries to detect sandboxes and other dynamic analysis tools (window names) 23->122 126 4 other signatures 23->126 124 Binary is likely a compiled AutoIt script file 26->124 47 msedge.exe 26->47         started        82 s-part-0014.t-0009.t-msedge.net 13.107.246.42, 443, 49741, 49744 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 28->82 84 142.251.40.174, 443, 49764, 49765 GOOGLEUS United States 28->84 86 5 other IPs or domains 28->86 signatures9 process10 file11 54 C:\Users\user\AppData\Local\...\svoutse.exe, PE32 37->54 dropped 104 Antivirus detection for dropped file 37->104 106 Detected unpacking (changes PE section rights) 37->106 108 Machine Learning detection for dropped file 37->108 116 2 other signatures 37->116 49 svoutse.exe 37->49         started        110 Tries to evade debugger and weak emulator (self modifying code) 43->110 112 Tries to detect virtualization through RDTSC time measurements 43->112 114 Hides threads from debuggers 43->114 52 msedge.exe 47->52         started        signatures12 process13 signatures14 88 Detected unpacking (changes PE section rights) 49->88 90 Tries to evade debugger and weak emulator (self modifying code) 49->90 92 Hides threads from debuggers 49->92 94 2 other signatures 49->94
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-08-27 11:53:13 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=wiurn74scxk2tinnof7sbj42wjg4jyp2j3uv6ezgxmklzxub5i5a._file
Verdict:
unknown
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:leva discovery evasion stealer
Link:
https://tria.ge/reports/240827-n2axsayhkd/
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://185.215.113.100
Unpacked files
SH256 hash:
4e66287d6ca5c5b523f8b6ed98b08d319995f9edeb87b85b8e063f5926e2af7e
MD5 hash:
7fbbd0640ac73af07ca330938f597d3f
SHA1 hash:
7293523ba90ec540d3d288c9447e71f3e1c5641c
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/d64284c5-05c1-4f6d-b86d-4dcf0aad88e0/
SH256 hash:
b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a
MD5 hash:
21b886639fc26662ffea9267e9e10eb2
SHA1 hash:
861fe5e76080402c120ea546ef335a25dd919c7a
Link:
https://www.unpac.me/results/d64284c5-05c1-4f6d-b86d-4dcf0aad88e0/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b22916ff9215/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/b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a

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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

MarsStealer

Executable exe b22916ff9215d5a9a1ad717f20a79ab24dc4e1fa4ee95f1326bb14bcde81ea3a

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3129259/
  
URLhaus
https://urlhaus.abuse.ch/url/3120900/
  
URLhaus
https://urlhaus.abuse.ch/url/3120910/
  
URLhaus
https://urlhaus.abuse.ch/url/3120904/
  
URLhaus
https://urlhaus.abuse.ch/url/3114824/

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