MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d
SHA3-384 hash: 96f48770a198c1a5dbfa96f6f9bc951a878d3d40452eac7c557941142dcd9db4d97d6b7af2c4f16f56f37817fa4d8073
SHA1 hash: d07f6a1ffcc0bd98a80ba1d5574425a2bd1d3d23
MD5 hash: 1552573045f153aa7269a30d3a1dd151
humanhash: mountain-bulldog-carpet-solar
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'488'320 bytes
First seen:2024-07-09 23:26:44 UTC
Last seen:2024-07-10 02:30:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:fUJ0tlSm5vh9dwM4tYensXVh9uZl3Rh7LRCFIg6EWkJeectmfdF:M2VR4t/sFbgdRh7CWeeeww
TLSH T1C7B533E31704E2B6CC85FBBCF8FED1436265A1B16CF58A32CA6C41517639271AACC917
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 :
8
# of downloads :
402
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d.exe
Verdict:
Malicious activity
Analysis date:
2024-07-09 23:27:15 UTC
Tags:
stealc stealer antivm loader
Link:
https://app.any.run/tasks/d2606ace-bcd6-488d-a13a-74001a9fedf6

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=668dc747ac0995ce2cbb5322win7simulatehigh_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/668dc7487731d034e88174f3/reports/abd9d4bc-0bf5-4ff4-800a-f2df32ce6f60/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d
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/b3c0a9ac-2f07-4ca1-b744-ac017d5c45c3
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/1470474
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: 1470474 Sample: file.exe Startdate: 10/07/2024 Architecture: WINDOWS Score: 100 80 youtube-ui.l.google.com 2->80 82 www.youtube.com 2->82 84 32 other IPs or domains 2->84 110 Snort IDS alert for network traffic 2->110 112 Found malware configuration 2->112 114 Antivirus detection for URL or domain 2->114 116 15 other signatures 2->116 11 file.exe 36 2->11         started        16 explorti.exe 2->16         started        18 explorti.exe 2->18         started        20 firefox.exe 1 2->20         started        signatures3 process4 dnsIp5 92 85.28.47.30, 49731, 49747, 80 GES-ASRU Russian Federation 11->92 94 77.91.77.81, 49738, 49746, 49749 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 11->94 62 C:\Users\user\AppData\...\FCFBFHIEBK.exe, PE32 11->62 dropped 64 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->64 dropped 66 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->66 dropped 68 12 other files (8 malicious) 11->68 dropped 118 Detected unpacking (changes PE section rights) 11->118 120 Tries to steal Mail credentials (via file / registry access) 11->120 122 Found many strings related to Crypto-Wallets (likely being stolen) 11->122 130 4 other signatures 11->130 22 cmd.exe 1 11->22         started        24 cmd.exe 2 11->24         started        124 Hides threads from debuggers 16->124 126 Tries to detect sandboxes / dynamic malware analysis system (registry check) 16->126 128 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 16->128 26 firefox.exe 216 20->26         started        file6 signatures7 process8 dnsIp9 30 FCFBFHIEBK.exe 4 22->30         started        34 conhost.exe 22->34         started        36 conhost.exe 24->36         started        86 youtube-ui.l.google.com 172.217.18.14, 443, 49776, 49777 GOOGLEUS United States 26->86 88 prod.detectportal.prod.cloudops.mozgcp.net 34.107.221.82, 49778, 49787, 49789 GOOGLEUS United States 26->88 90 10 other IPs or domains 26->90 56 C:\Users\user\AppData\...\gmpopenh264.dll.tmp, PE32+ 26->56 dropped 58 C:\Users\user\...\gmpopenh264.dll (copy), PE32+ 26->58 dropped 60 C:\Users\user\AppData\...\places.sqlite-wal, SQLite 26->60 dropped 38 firefox.exe 26->38         started        40 firefox.exe 26->40         started        42 firefox.exe 26->42         started        file10 process11 file12 78 C:\Users\user\AppData\Local\...\explorti.exe, PE32 30->78 dropped 140 Antivirus detection for dropped file 30->140 142 Detected unpacking (changes PE section rights) 30->142 144 Machine Learning detection for dropped file 30->144 146 5 other signatures 30->146 44 explorti.exe 19 30->44         started        signatures13 process14 dnsIp15 96 77.91.77.82, 49744, 49748, 49750 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 44->96 70 C:\Users\user\AppData\...\e25b6ef61a.exe, PE32 44->70 dropped 72 C:\Users\user\AppData\...\9b6ce56815.exe, PE32 44->72 dropped 74 C:\Users\user\AppData\Local\...\random[1].exe, PE32 44->74 dropped 76 C:\Users\user\AppData\Local\...\random[1].exe, PE32 44->76 dropped 132 Antivirus detection for dropped file 44->132 134 Detected unpacking (changes PE section rights) 44->134 136 Tries to detect sandboxes and other dynamic analysis tools (window names) 44->136 138 5 other signatures 44->138 49 9b6ce56815.exe 12 44->49         started        52 e25b6ef61a.exe 1 44->52         started        file16 signatures17 process18 signatures19 98 Antivirus detection for dropped file 49->98 100 Multi AV Scanner detection for dropped file 49->100 102 Detected unpacking (changes PE section rights) 49->102 104 Hides threads from debuggers 49->104 106 Binary is likely a compiled AutoIt script file 52->106 108 Machine Learning detection for dropped file 52->108 54 firefox.exe 1 52->54         started        process20
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-09 23:27:06 UTC
File Type:
PE (Exe)
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3b2jb7tsyeo7qr3ecsyd2yj776m2lgeude6ckeq33zy4ornzdroq._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/240709-3fd5mstgmf/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
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
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
Deletes itself
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/0e9c3fa8-493a-4647-9950-cd19b434354d
Unpacked files
SH256 hash:
d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d
MD5 hash:
1552573045f153aa7269a30d3a1dd151
SHA1 hash:
d07f6a1ffcc0bd98a80ba1d5574425a2bd1d3d23
Link:
https://www.unpac.me/results/41a7dffa-18fa-4a27-8782-1d0de954ebd9/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d87490fe72c1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Stealc
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d

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

Stealc

Executable exe d87490fe72c11df8476414b03d613fff99a59894193c25121bde71c745b91c5d

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2945045/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2908698/

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