MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f. 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: a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f
SHA3-384 hash: 8cd52664e21f6155b7ed998efede2901f6a4c2f2411212b7666947993e24f1a8344b5945421e7e0c98c6311cafee36c5
SHA1 hash: 4b5443646ed2c6ddca9228d7e7541f8479d2d46e
MD5 hash: 7e31c0151d87b970d6745530b7c60c37
humanhash: alanine-fruit-asparagus-connecticut
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:1'825'280 bytes
First seen:2024-09-08 12:12:29 UTC
Last seen:2024-09-08 13:44:01 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 24576:Q/HzUQiS4abgGeRVBI32lxlVnPZlAZL7sjZwvmKQK+c53d1aqDxvKETXKYlbV:+xC3/l1nPbAZL7s2+ZW4qDJKET/
TLSH T15285331AAAF0E511E5E58DB408BB40E0F41CBC831A455D6A4C4629F16CC77FBAEBCD4B
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 :
3
# of downloads :
443
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-08 12:15:45 UTC
Tags:
stealer stealc loader themida amadey botnet autoit
Link:
https://app.any.run/tasks/7c88d5af-b524-4805-9b10-02cdacae7063

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.17609.24885.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66dd94d04af4c97a7615bdd7
Tags:
Execution Generic Infostealer Network Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
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:
anti-vm microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66dd94d0f060cf43bf7f3291/reports/e2362607-42e7-4a18-817d-580e229443fa/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/beacf41e-6fcb-495b-95ec-ec3132a9f8d8
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1507490
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
PE file contains section with special chars
Potentially malicious time measurement code found
Sigma detected: New RUN Key Pointing to Suspicious 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 dnsIp2 2 Behavior Graph ID: 1507490 Sample: file.exe Startdate: 08/09/2024 Architecture: WINDOWS Score: 100 56 15.164.165.52.in-addr.arpa 2->56 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Antivirus detection for URL or domain 2->68 70 13 other signatures 2->70 9 file.exe 37 2->9         started        14 svoutse.exe 1 21 2->14         started        16 svoutse.exe 2->16         started        18 2 other processes 2->18 signatures3 process4 dnsIp5 58 185.215.113.103, 51081, 59335, 59339 WHOLESALECONNECTIONSNL Portugal 9->58 60 31.41.244.11, 51089, 59331, 59333 AEROEXPRESS-ASRU Russian Federation 9->60 38 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->38 dropped 40 C:\Users\user\AppData\Local\...\random[1].exe, PE32 9->40 dropped 42 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->42 dropped 50 11 other files (7 malicious) 9->50 dropped 96 Detected unpacking (changes PE section rights) 9->96 98 Tries to steal Mail credentials (via file / registry access) 9->98 100 Found many strings related to Crypto-Wallets (likely being stolen) 9->100 108 6 other signatures 9->108 20 cmd.exe 1 9->20         started        62 31.41.244.10, 59330, 59332, 59334 AEROEXPRESS-ASRU Russian Federation 14->62 44 C:\Users\user\AppData\...\9b00865d10.exe, PE32 14->44 dropped 46 C:\Users\user\AppData\...\437c41c8ce.exe, PE32 14->46 dropped 48 C:\Users\user\AppData\...\d486fcb4e8.exe, PE32 14->48 dropped 52 2 other malicious files 14->52 dropped 102 Hides threads from debuggers 14->102 104 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->104 106 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->106 22 d486fcb4e8.exe 13 14->22         started        25 9b00865d10.exe 13 14->25         started        27 437c41c8ce.exe 14->27         started        file6 signatures7 process8 signatures9 29 KFHCAEGCBF.exe 4 20->29         started        33 conhost.exe 20->33         started        80 Antivirus detection for dropped file 22->80 82 Detected unpacking (changes PE section rights) 22->82 84 Tries to detect sandboxes and other dynamic analysis tools (window names) 22->84 94 2 other signatures 22->94 86 Machine Learning detection for dropped file 25->86 88 Tries to evade debugger and weak emulator (self modifying code) 25->88 90 Hides threads from debuggers 25->90 92 Binary is likely a compiled AutoIt script file 27->92 process10 file11 54 C:\Users\user\AppData\Local\...\svoutse.exe, PE32 29->54 dropped 110 Antivirus detection for dropped file 29->110 112 Detected unpacking (changes PE section rights) 29->112 114 Machine Learning detection for dropped file 29->114 116 5 other signatures 29->116 35 svoutse.exe 29->35         started        signatures12 process13 signatures14 72 Antivirus detection for dropped file 35->72 74 Detected unpacking (changes PE section rights) 35->74 76 Machine Learning detection for dropped file 35->76 78 5 other signatures 35->78
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Suspicious
First seen:
2024-09-08 12:13:06 UTC
File Type:
PE (Exe)
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vgpkgll6pgwrdkd6vagy2tyk5iqpgolrelmz55pg3r7sq3zacepq._file
Verdict:
unknown
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:rave discovery evasion stealer
Link:
https://tria.ge/reports/240908-pdqtrsvgjr/
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:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9ab46222-ea81-40dc-b1c3-8b98f0902595
Unpacked files
SH256 hash:
345bbb2fdede8305cc024fcc5fc712a862094b41707971cdce8c102c4afbf371
MD5 hash:
fba56274544abd8b5c3a96954d09f09c
SHA1 hash:
cd36d0ee5485ba45be42a646e41f2e0637a9baa1
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/ed29f7a8-d51a-4141-b0fd-6263005f04f2/
SH256 hash:
a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f
MD5 hash:
7e31c0151d87b970d6745530b7c60c37
SHA1 hash:
4b5443646ed2c6ddca9228d7e7541f8479d2d46e
Link:
https://www.unpac.me/results/ed29f7a8-d51a-4141-b0fd-6263005f04f2/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a99ea32d7e79/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/a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f

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 a99ea32d7e79ad11a87ea80d8d4f0aea20f3397122d99ef5e6dc7f286f20111f

(this sample)

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