MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913
SHA3-384 hash: 96ea053fb420411f4359cd4ed54456afc864d8589705c8903c9368994f026f791895b5f3e5e4020cbc639fbf5e29aa1b
SHA1 hash: 9a2461c520ccc44840c1bd041467ce084dadab51
MD5 hash: e43a0ac327404f3008b679e0b1293c6b
humanhash: may-hot-nitrogen-green
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'442'752 bytes
First seen:2024-07-09 22:46:00 UTC
Last seen:2024-07-09 22:53:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:LkYIJsBoDjEdjeXiaTwfqvASVk9yTYn8C4S5gioYgwm:NZj5aqq9ay+NpE
TLSH T19AB533EE8E049819D930F0FF7D756341BE1A095EF462D6A8B848B9340087C77FE98369
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 :
2
# of downloads :
478
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 22:47:44 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/1c181b5c-c9aa-465f-9923-116f141e0435

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:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=668dbdabec881b573673fac9win7simulatehigh_evasion
Tags:
Stealth
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
enigma lolbin microsoft_visual_cc packed packed shell32
Link:
https://www.filescan.io/uploads/668dbdac7a9d1652006f7656/reports/ca855e8d-6c12-47e1-b3dd-db5a1fb8d864/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913
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/0e367d1e-cde3-4216-860e-6672016ea218
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/1470469
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
PE file has nameless sections
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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1470469 Sample: file.exe Startdate: 10/07/2024 Architecture: WINDOWS Score: 100 76 youtube-ui.l.google.com 2->76 78 www.youtube.com 2->78 80 33 other IPs or domains 2->80 94 Snort IDS alert for network traffic 2->94 96 Found malware configuration 2->96 98 Antivirus detection for URL or domain 2->98 100 16 other signatures 2->100 11 file.exe 37 2->11         started        16 explorti.exe 2->16         started        18 firefox.exe 2->18         started        signatures3 process4 dnsIp5 90 85.28.47.30, 49705, 49722, 80 GES-ASRU Russian Federation 11->90 92 77.91.77.81, 49706, 49720, 49723 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->92 66 C:\Users\user\AppData\...\BGHJEBKJEG.exe, PE32 11->66 dropped 68 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->68 dropped 70 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->70 dropped 72 12 other files (8 malicious) 11->72 dropped 110 Detected unpacking (changes PE section rights) 11->110 112 Tries to steal Mail credentials (via file / registry access) 11->112 114 Found many strings related to Crypto-Wallets (likely being stolen) 11->114 122 4 other signatures 11->122 20 cmd.exe 1 11->20         started        22 cmd.exe 2 11->22         started        116 Hides threads from debuggers 16->116 118 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->118 120 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->120 24 firefox.exe 18->24         started        file6 signatures7 process8 dnsIp9 28 BGHJEBKJEG.exe 4 20->28         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        82 services.addons.mozilla.org 18.66.102.124, 443, 49810 MIT-GATEWAYSUS United States 24->82 84 youtube-ui.l.google.com 142.250.185.142, 443, 49749, 49751 GOOGLEUS United States 24->84 86 9 other IPs or domains 24->86 54 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 24->54 dropped 56 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 24->56 dropped 36 firefox.exe 24->36         started        38 firefox.exe 24->38         started        40 firefox.exe 24->40         started        file10 process11 file12 74 C:\Users\user\AppData\Local\...\explorti.exe, PE32 28->74 dropped 124 Antivirus detection for dropped file 28->124 126 Detected unpacking (changes PE section rights) 28->126 128 Machine Learning detection for dropped file 28->128 130 5 other signatures 28->130 42 explorti.exe 19 28->42         started        signatures13 process14 dnsIp15 88 77.91.77.82, 49718, 49721, 49724 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 42->88 58 C:\Users\user\AppData\...\78735cdfaa.exe, PE32 42->58 dropped 60 C:\Users\user\AppData\...\4edc5753a7.exe, PE32 42->60 dropped 62 C:\Users\user\AppData\Local\...\random[1].exe, PE32 42->62 dropped 64 C:\Users\user\AppData\Local\...\random[1].exe, PE32 42->64 dropped 102 Antivirus detection for dropped file 42->102 104 Detected unpacking (changes PE section rights) 42->104 106 Tries to detect sandboxes and other dynamic analysis tools (window names) 42->106 108 5 other signatures 42->108 47 4edc5753a7.exe 12 42->47         started        50 78735cdfaa.exe 1 42->50         started        file16 signatures17 process18 signatures19 132 Antivirus detection for dropped file 47->132 134 Multi AV Scanner detection for dropped file 47->134 136 Detected unpacking (changes PE section rights) 47->136 138 Hides threads from debuggers 47->138 140 Binary is likely a compiled AutoIt script file 50->140 142 Machine Learning detection for dropped file 50->142 52 firefox.exe 1 50->52         started        process20
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Suspicious
First seen:
2024-07-09 22:47:05 UTC
File Type:
PE (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=paycfoofs3v6y6mgxjjpmabpsbcixhpnsv2vheoux4t5kjyc7ejq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240709-2pyd7szhjr/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Checks processor information in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Enumerates physical storage devices
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
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/18058bc1-9df5-40f7-a3c7-b1ba33fe0cd1
Unpacked files
SH256 hash:
783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913
MD5 hash:
e43a0ac327404f3008b679e0b1293c6b
SHA1 hash:
9a2461c520ccc44840c1bd041467ce084dadab51
Link:
https://www.unpac.me/results/e2637732-ac43-4669-83a1-bb3dda219b1a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Mars Stealer
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913

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 783022b9c596ebec7986ba52f6002f90448b9ded95755391d4bf27d52702f913

(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/

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

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