MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9. 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 1 File information Comments

SHA256 hash: 25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9
SHA3-384 hash: 311f486c6118f015a200b0df42abad3f551b1638902c1911db480af742cb979305bf0fa7c189a42a9e8d3faef5085e17
SHA1 hash: 5f8a57b2e8902523bbafc50434f3692fe1d92b74
MD5 hash: e6a54ac6b35b2def5a7d9b9699388f26
humanhash: nuts-helium-social-hotel
File name:file
Download: download sample
Signature Stealc
File size:2'550'272 bytes
First seen:2024-07-08 22:38:30 UTC
Last seen:2024-07-09 02:06:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:Ck2E6aD/CORxvfoSmBXE6G7VrBfqFuUvo4NVJaeqeuf+z:CfSCO7NmB3GVBfqFxQYTqeuf+z
TLSH T1A5C533B96A9032FBDA5C09BE083AFEA708F57C0D874C7748A35577821655ACF10B248F
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 Stealc


Avatar
Bitsight
url: http://77.91.77.81/stealc/random.exe

Intelligence


File Origin
# of uploads :
9
# of downloads :
533
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe
Verdict:
Malicious activity
Analysis date:
2024-07-08 22:40:42 UTC
Tags:
stealer stealc loader antivm amadey botnet themida

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
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:
enigma lolbin microsoft_visual_cc packed packed shell32
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.
Result
Threat name:
Amadey, Mars Stealer, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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 sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted 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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1469569 Sample: file.exe Startdate: 09/07/2024 Architecture: WINDOWS Score: 100 98 telemetry-incoming.r53-2.services.mozilla.com 2->98 100 services.addons.mozilla.org 2->100 102 14 other IPs or domains 2->102 140 Snort IDS alert for network traffic 2->140 142 Found malware configuration 2->142 144 Antivirus detection for URL or domain 2->144 146 14 other signatures 2->146 12 file.exe 37 2->12         started        17 explorti.exe 2->17         started        19 explorti.exe 2->19         started        21 6 other processes 2->21 signatures3 process4 dnsIp5 128 85.28.47.30, 49704, 49722, 80 GES-ASRU Russian Federation 12->128 130 77.91.77.81, 49705, 49720, 49723 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 12->130 82 C:\Users\user\AppData\...\HIEBAKEHDH.exe, PE32 12->82 dropped 84 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->84 dropped 86 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 12->86 dropped 92 11 other files (3 malicious) 12->92 dropped 162 Detected unpacking (changes PE section rights) 12->162 164 Tries to steal Mail credentials (via file / registry access) 12->164 166 Found many strings related to Crypto-Wallets (likely being stolen) 12->166 174 4 other signatures 12->174 23 cmd.exe 1 12->23         started        25 cmd.exe 2 12->25         started        168 Hides threads from debuggers 17->168 170 Tries to detect sandboxes / dynamic malware analysis system (registry check) 17->170 172 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 17->172 88 topTraffic_1705401...0506234197983529371, data 21->88 dropped 90 C:\Users\user\AppData\Local\...\topTraffic, ASCII 21->90 dropped 27 firefox.exe 21->27         started        30 msedge.exe 21->30         started        32 msedge.exe 21->32         started        34 6 other processes 21->34 file6 signatures7 process8 dnsIp9 36 HIEBAKEHDH.exe 4 23->36         started        40 conhost.exe 23->40         started        42 conhost.exe 25->42         started        116 services.addons.mozilla.org 18.65.39.31 MIT-GATEWAYSUS United States 27->116 118 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 49800, 49808, 80 GOOGLEUS United States 27->118 124 6 other IPs or domains 27->124 44 firefox.exe 27->44         started        46 firefox.exe 27->46         started        120 13.107.246.40, 443, 49805, 49809 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->120 122 204.79.197.237 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->122 126 18 other IPs or domains 30->126 process10 file11 80 C:\Users\user\AppData\Local\...\explorti.exe, PE32 36->80 dropped 148 Detected unpacking (changes PE section rights) 36->148 150 Tries to evade debugger and weak emulator (self modifying code) 36->150 152 Tries to detect virtualization through RDTSC time measurements 36->152 154 3 other signatures 36->154 48 explorti.exe 19 36->48         started        signatures12 process13 dnsIp14 94 77.91.77.82, 49719, 49721, 49724 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 48->94 96 prod.detectportal.prod.cloudops.mozgcp.net 48->96 76 C:\Users\user\AppData\...\dc7ac61276.exe, PE32 48->76 dropped 78 C:\Users\user\AppData\Local\...\random[1].exe, PE32 48->78 dropped 132 Detected unpacking (changes PE section rights) 48->132 134 Tries to detect sandboxes and other dynamic analysis tools (window names) 48->134 136 Tries to evade debugger and weak emulator (self modifying code) 48->136 138 3 other signatures 48->138 53 dc7ac61276.exe 12 48->53         started        56 cmd.exe 1 48->56         started        file15 signatures16 process17 signatures18 156 Multi AV Scanner detection for dropped file 53->156 158 Detected unpacking (changes PE section rights) 53->158 160 Hides threads from debuggers 53->160 58 chrome.exe 56->58         started        61 msedge.exe 56->61         started        63 conhost.exe 56->63         started        65 firefox.exe 56->65         started        process19 dnsIp20 110 192.168.2.5, 443, 49703, 49704 unknown unknown 58->110 112 192.168.2.4 unknown unknown 58->112 114 4 other IPs or domains 58->114 67 chrome.exe 58->67         started        70 chrome.exe 58->70         started        72 chrome.exe 58->72         started        74 msedge.exe 61->74         started        process21 dnsIp22 104 youtube-ui.l.google.com 142.250.185.174, 443, 49725 GOOGLEUS United States 67->104 106 www.google.com 142.250.185.68 GOOGLEUS United States 67->106 108 4 other IPs or domains 67->108
Threat name:
Win32.Spyware.Stealc
Status:
Malicious
First seen:
2024-07-08 22:39:05 UTC
File Type:
PE (Exe)
AV detection:
19 of 24 (79.17%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:hate discovery evasion spyware stealer trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Drops file in Windows directory
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
Unpacked files
SH256 hash:
25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9
MD5 hash:
e6a54ac6b35b2def5a7d9b9699388f26
SHA1 hash:
5f8a57b2e8902523bbafc50434f3692fe1d92b74
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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

Stealc

Executable exe 25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9

(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
Reviews
IDCapabilitiesEvidence
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryA
WIN_BASE_IO_APICan Create Filesversion.dll::GetFileVersionInfoA

Comments