MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash: 1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258
SHA3-384 hash: ec4cb2ab0d5895d84afd92bb16f0a8df49a068b1f069a57a46f935488e1c83e9ed9ffdbe7ff4a3cc223e6d503a46a59c
SHA1 hash: 62f08c0b06f78cbedd706234247314556fef6fe8
MD5 hash: 17b03a403438e26df7304a0743fb9fda
humanhash: fifteen-georgia-six-west
File name:file
Download: download sample
Signature Stealc
File size:2'463'232 bytes
First seen:2024-07-08 03:15:57 UTC
Last seen:2024-07-08 04:24:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:5JQwTTGhhnFuSWKnhfPp7n4AUsC0W6hh6EZYYWdC0RF+/:MwTi0K5p8JfIfY1g0RI
TLSH T101B533C80DF0E84ED5674FB8CE98C3B092B99805915C3CDA24A1F6DFCF250C955DA6EA
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 :
4
# of downloads :
405
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258.exe
Verdict:
Malicious activity
Analysis date:
2024-07-08 03:16:19 UTC
Tags:
stealc stealer antivm loader 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
Searching for the window
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:
Malicious
Threat level:
  10/10
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
Potentially malicious time measurement code found
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 Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1468853 Sample: file.exe Startdate: 08/07/2024 Architecture: WINDOWS Score: 100 110 sni1gl.wpc.nucdn.net 2->110 112 services.addons.mozilla.org 2->112 114 11 other IPs or domains 2->114 134 Snort IDS alert for network traffic 2->134 136 Found malware configuration 2->136 138 Antivirus detection for URL or domain 2->138 140 13 other signatures 2->140 9 file.exe 37 2->9         started        14 explorti.exe 19 2->14         started        16 msedge.exe 2->16         started        18 firefox.exe 2->18         started        signatures3 process4 dnsIp5 116 85.28.47.30, 49704, 51856, 51986 GES-ASRU Russian Federation 9->116 118 77.91.77.81, 51848, 51855, 51858 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->118 76 C:\Users\user\AppData\...\BAEHIEBGHD.exe, PE32 9->76 dropped 78 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->78 dropped 80 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->80 dropped 92 11 other files (3 malicious) 9->92 dropped 156 Detected unpacking (changes PE section rights) 9->156 158 Tries to steal Mail credentials (via file / registry access) 9->158 160 Found many strings related to Crypto-Wallets (likely being stolen) 9->160 168 4 other signatures 9->168 20 cmd.exe 1 9->20         started        22 cmd.exe 2 9->22         started        120 77.91.77.82, 51854, 51857, 51859 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 14->120 82 C:\Users\user\AppData\...\33e20810d4.exe, PE32 14->82 dropped 84 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->84 dropped 162 Hides threads from debuggers 14->162 164 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->164 166 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->166 24 33e20810d4.exe 12 14->24         started        27 cmd.exe 1 14->27         started        86 topTraffic_1705401...0506234197983529371, data 16->86 dropped 88 C:\Users\user\AppData\Local\...\topTraffic, ASCII 16->88 dropped 90 C:\Users\user\AppData\Local\...\History, SQLite 16->90 dropped 29 msedge.exe 16->29         started        33 msedge.exe 16->33         started        35 msedge.exe 16->35         started        39 3 other processes 16->39 37 firefox.exe 18->37         started        file6 signatures7 process8 dnsIp9 41 BAEHIEBGHD.exe 4 20->41         started        45 conhost.exe 20->45         started        47 conhost.exe 22->47         started        142 Multi AV Scanner detection for dropped file 24->142 144 Detected unpacking (changes PE section rights) 24->144 146 Hides threads from debuggers 24->146 49 chrome.exe 27->49         started        52 msedge.exe 27->52         started        54 conhost.exe 27->54         started        56 firefox.exe 27->56         started        122 13.107.246.40, 443, 51927, 51931 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 29->122 124 20.96.153.111, 443, 51909 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 29->124 130 19 other IPs or domains 29->130 94 C:\Users\user\AppData\Local\...\Cookies, SQLite 29->94 dropped 126 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 51919, 51930, 51998 GOOGLEUS United States 37->126 128 prod.classify-client.prod.webservices.mozgcp.net 35.190.72.216, 443, 51917, 51996 GOOGLEUS United States 37->128 132 4 other IPs or domains 37->132 96 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 37->96 dropped 98 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 37->98 dropped 58 firefox.exe 37->58         started        60 firefox.exe 37->60         started        file10 signatures11 process12 dnsIp13 74 C:\Users\user\AppData\Local\...\explorti.exe, PE32 41->74 dropped 148 Detected unpacking (changes PE section rights) 41->148 150 Tries to evade debugger and weak emulator (self modifying code) 41->150 152 Tries to detect virtualization through RDTSC time measurements 41->152 154 4 other signatures 41->154 62 explorti.exe 41->62         started        100 192.168.2.5, 443, 49293, 49703 unknown unknown 49->100 102 239.255.255.250 unknown Reserved 49->102 65 chrome.exe 49->65         started        68 chrome.exe 49->68         started        70 chrome.exe 49->70         started        72 msedge.exe 52->72         started        file14 signatures15 process16 dnsIp17 170 Detected unpacking (changes PE section rights) 62->170 172 Tries to detect sandboxes and other dynamic analysis tools (window names) 62->172 174 Tries to evade debugger and weak emulator (self modifying code) 62->174 176 4 other signatures 62->176 104 www.google.com 172.217.16.132, 443, 51969 GOOGLEUS United States 65->104 106 play.google.com 172.217.18.14, 443, 51960, 51961 GOOGLEUS United States 65->106 108 4 other IPs or domains 65->108 signatures18
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-07-08 03:16:07 UTC
File Type:
PE (Exe)
AV detection:
20 of 38 (52.63%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:nice discovery evasion spyware stealer trojan
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Enumerates system info in registry
Modifies registry class
Suspicious behavior: EnumeratesProcesses
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:
1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258
MD5 hash:
17b03a403438e26df7304a0743fb9fda
SHA1 hash:
62f08c0b06f78cbedd706234247314556fef6fe8
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 1ad057f20760236870be5f5a81fe789f0d33184371426bf5d278f64248ae5258

(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