MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 781b341401473af5ccb3cd848c5262087cad5fa4e98991bfa13388523ce667b8. 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



Stealc


Vendor detections: 15


Intelligence 15 IOCs YARA File information Comments

SHA256 hash: 781b341401473af5ccb3cd848c5262087cad5fa4e98991bfa13388523ce667b8
SHA3-384 hash: c0a1fd9ad9306d30225fd2dcede8da4272f8b965241770b682c57b4de78b75c8bd17acc344e9d6775dff89d189af1078
SHA1 hash: 3b58b0208fd580deb3cff3dd12685fe2d82754c4
MD5 hash: dec2e144db435128f27d58b0947d7b05
humanhash: skylark-mango-indigo-fourteen
File name:file
Download: download sample
Signature Stealc
File size:1'787'904 bytes
First seen:2024-11-15 04:40:51 UTC
Last seen:2024-11-15 05:04:17 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:ayv20uKyVzlNASvVXvqkEOtwVc9q2slVLFihv:albTN5hP2c4lV
TLSH T16F8533243F269994C98E38F0584E9B3B3BD0B50074E5756E1F889CBCA8D33CA5CDB659
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 Stealc


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
488
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-15 05:10:42 UTC
Tags:
stealer stealc loader themida amadey botnet lumma

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
vmdetect autorun lien
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:
microsoft_visual_cc packed packed packer_detected
Result
Threat name:
PureCrypter, LummaC, Amadey, LummaC Stea
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected PureCrypter Trojan
Detected unpacking (changes PE section rights)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Disables Windows Defender Tamper protection
Drops PE files to the document folder of the user
Drops PE files to the user root directory
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
LummaC encrypted strings found
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies windows update settings
Monitors registry run keys for changes
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
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 LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1556215 Sample: file.exe Startdate: 15/11/2024 Architecture: WINDOWS Score: 100 74 mdec.nelreports.net 2->74 76 frogmen-smell.sbs 2->76 78 chrome.cloudflare-dns.com 2->78 114 Suricata IDS alerts for network traffic 2->114 116 Found malware configuration 2->116 118 Antivirus detection for URL or domain 2->118 120 11 other signatures 2->120 9 skotes.exe 2->9         started        13 file.exe 37 2->13         started        16 skotes.exe 2->16         started        18 5 other processes 2->18 signatures3 process4 dnsIp5 106 185.215.113.43 WHOLESALECONNECTIONSNL Portugal 9->106 146 Creates multiple autostart registry keys 9->146 168 2 other signatures 9->168 20 d6aa668beb.exe 9->20         started        24 f252602e3e.exe 9->24         started        26 4202a4cb71.exe 9->26         started        28 skotes.exe 9->28         started        108 185.215.113.16 WHOLESALECONNECTIONSNL Portugal 13->108 110 185.215.113.206, 49709, 49763, 49837 WHOLESALECONNECTIONSNL Portugal 13->110 112 127.0.0.1 unknown unknown 13->112 66 C:\Users\user\DocumentsGCGDGHCBGD.exe, PE32 13->66 dropped 68 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 13->68 dropped 70 C:\Users\user\AppData\...\softokn3[1].dll, PE32 13->70 dropped 72 11 other files (none is malicious) 13->72 dropped 148 Detected unpacking (changes PE section rights) 13->148 150 Attempt to bypass Chrome Application-Bound Encryption 13->150 152 Drops PE files to the document folder of the user 13->152 170 6 other signatures 13->170 30 cmd.exe 13->30         started        32 msedge.exe 2 10 13->32         started        34 chrome.exe 13->34         started        154 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 16->154 156 Tries to evade debugger and weak emulator (self modifying code) 16->156 158 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->158 160 Query firmware table information (likely to detect VMs) 18->160 162 Tries to harvest and steal ftp login credentials 18->162 164 Tries to harvest and steal browser information (history, passwords, etc) 18->164 166 Maps a DLL or memory area into another process 18->166 36 msedge.exe 18->36         started        39 8 other processes 18->39 file6 signatures7 process8 dnsIp9 86 frogmen-smell.sbs 172.67.174.133 CLOUDFLARENETUS United States 20->86 122 Detected unpacking (changes PE section rights) 20->122 124 Query firmware table information (likely to detect VMs) 20->124 126 Tries to evade debugger and weak emulator (self modifying code) 20->126 144 4 other signatures 20->144 41 chrome.exe 20->41         started        128 Modifies windows update settings 24->128 130 Disables Windows Defender Tamper protection 24->130 132 Disable Windows Defender notifications (registry) 24->132 134 Disable Windows Defender real time protection (registry) 24->134 136 Tries to detect sandboxes and other dynamic analysis tools (window names) 26->136 138 Hides threads from debuggers 26->138 140 Tries to detect sandboxes / dynamic malware analysis system (registry check) 26->140 43 DocumentsGCGDGHCBGD.exe 30->43         started        47 conhost.exe 30->47         started        142 Monitors registry run keys for changes 32->142 49 msedge.exe 32->49         started        88 192.168.2.6, 443, 49705, 49707 unknown unknown 34->88 90 239.255.255.250 unknown Reserved 34->90 51 chrome.exe 34->51         started        92 23.218.232.182, 443, 49874 RAYA-ASEG United States 36->92 94 23.55.178.238, 443, 49884, 49885 NTT-COMMUNICATIONS-2914US United States 36->94 96 25 other IPs or domains 36->96 62 C:\Users\user\AppData\Local\...\Cookies, SQLite 36->62 dropped 98 3 other IPs or domains 39->98 file10 signatures11 process12 dnsIp13 54 chrome.exe 41->54         started        57 chrome.exe 41->57         started        64 C:\Users\user\AppData\Local\...\skotes.exe, PE32 43->64 dropped 178 Detected unpacking (changes PE section rights) 43->178 180 Tries to evade debugger and weak emulator (self modifying code) 43->180 182 Tries to detect virtualization through RDTSC time measurements 43->182 184 3 other signatures 43->184 59 skotes.exe 43->59         started        80 www.google.com 142.250.184.228, 443, 49714, 49715 GOOGLEUS United States 51->80 82 play.google.com 142.250.185.78, 443, 49746, 49770 GOOGLEUS United States 51->82 84 2 other IPs or domains 51->84 file14 signatures15 process16 dnsIp17 100 s-part-0015.t-0009.t-msedge.net 13.107.246.43 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 54->100 102 172.217.16.196 GOOGLEUS United States 54->102 104 8 other IPs or domains 54->104 172 Hides threads from debuggers 59->172 174 Tries to detect sandboxes / dynamic malware analysis system (registry check) 59->174 176 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 59->176 signatures18
Threat name:
Win32.Trojan.LummaStealer
Status:
Malicious
First seen:
2024-11-15 04:41:05 UTC
File Type:
PE (Exe)
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:amadey botnet:9c9aa5 credential_access discovery evasion persistence spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
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
Windows security modification
Downloads MZ/PE file
Uses browser remote debugging
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
Amadey family
Modifies Windows Defender Real-time Protection settings
Malware Config
C2 Extraction:
http://185.215.113.43
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
2cd9c501d184b10e46cf141fc5cfe69d0920fbe92d4dd4c711d3f6c8ab06c748
MD5 hash:
52be7d6752f6ecce0dee355f49c17fac
SHA1 hash:
2a6ab403954b2104b248de24a11e233e45133dec
Detections:
win_stealc_w0 win_stealc_a0
SH256 hash:
781b341401473af5ccb3cd848c5262087cad5fa4e98991bfa13388523ce667b8
MD5 hash:
dec2e144db435128f27d58b0947d7b05
SHA1 hash:
3b58b0208fd580deb3cff3dd12685fe2d82754c4
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

Stealc

Executable exe 781b341401473af5ccb3cd848c5262087cad5fa4e98991bfa13388523ce667b8

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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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