MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d
SHA3-384 hash: c1a876f314d38b8b1454f6d8f72e876bea115281db91c830892f77a9f9bf4eefed37fba122878f927f03efe3f281e26e
SHA1 hash: e520a1872769d35e045fba592f7987eb97e6f175
MD5 hash: d961b76024edf043b709ae146a38a4c7
humanhash: magazine-foxtrot-ink-mississippi
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'537'984 bytes
First seen:2024-07-03 04:04:28 UTC
Last seen:2024-07-03 04:13:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:ixg6k7wKl7hD3KwVD23iA1Vt5//6+b7FA55b1xiJOtieykm87eJJB1bsjbJ1TD:IFk7wKdhbj2ttN6+A5beCm8iJOZBD
Threatray 22 similar samples on MalwareBazaar
TLSH T1B8C5334AA41ED18FC6DA617F7CB5BEEC0ADCFB68C698CEF7B7114144C8068D6049AC16
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 :
2
# of downloads :
347
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d.exe
Verdict:
Malicious activity
Analysis date:
2024-07-03 04:04:52 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/44c85a3d-81f0-4841-8637-9d964cd73e20

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:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6684ce8f505ae615975cb0abwin10vpnfull_triage
Tags:
Execution Generic Infostealer Network Stealth Trojan Zpack
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
Link:
https://www.filescan.io/uploads/6684cdeeeae3878d8f3c9a0a/reports/7f5ded7d-35c7-4e6a-a592-254ad1873551/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d
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/c15dd280-873b-4199-b2c5-42d6a02cdc2b
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/1466565
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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 dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
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 Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1466565 Sample: file.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic 2->63 65 Multi AV Scanner detection for domain / URL 2->65 67 Found malware configuration 2->67 69 16 other signatures 2->69 8 file.exe 37 2->8         started        13 explorti.exe 16 2->13         started        15 explorti.exe 2->15         started        process3 dnsIp4 49 85.28.47.4, 49710, 49730, 80 GES-ASRU Russian Federation 8->49 51 77.91.77.81, 49713, 49728, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 8->51 37 C:\Users\user\AppData\...\KJDGDBFBGI.exe, PE32 8->37 dropped 39 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->39 dropped 41 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 8->41 dropped 47 11 other files (7 malicious) 8->47 dropped 87 Detected unpacking (changes PE section rights) 8->87 89 Tries to steal Mail credentials (via file / registry access) 8->89 91 Found many strings related to Crypto-Wallets (likely being stolen) 8->91 99 4 other signatures 8->99 17 cmd.exe 1 8->17         started        19 cmd.exe 2 8->19         started        53 77.91.77.82, 49727, 49731, 49732 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 13->53 43 C:\Users\user\AppData\...\3a3ee1dd18.exe, PE32 13->43 dropped 45 C:\Users\user\AppData\Local\...\random[1].exe, PE32 13->45 dropped 93 Hides threads from debuggers 13->93 95 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->95 97 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->97 21 3a3ee1dd18.exe 12 13->21         started        file5 signatures6 process7 signatures8 24 KJDGDBFBGI.exe 4 17->24         started        28 conhost.exe 17->28         started        30 conhost.exe 19->30         started        71 Antivirus detection for dropped file 21->71 73 Multi AV Scanner detection for dropped file 21->73 75 Detected unpacking (changes PE section rights) 21->75 77 2 other signatures 21->77 process9 file10 35 C:\Users\user\AppData\Local\...\explorti.exe, PE32 24->35 dropped 79 Antivirus detection for dropped file 24->79 81 Detected unpacking (changes PE section rights) 24->81 83 Machine Learning detection for dropped file 24->83 85 5 other signatures 24->85 32 explorti.exe 24->32         started        signatures11 process12 signatures13 55 Antivirus detection for dropped file 32->55 57 Detected unpacking (changes PE section rights) 32->57 59 Tries to detect sandboxes and other dynamic analysis tools (window names) 32->59 61 5 other signatures 32->61
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-07-03 03:18:14 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=ieyspew4ze3jsxe6nrfwivecdfnibubb5rmig6lra2fpwzawwrgq._file
Verdict:
malicious
Similar samples:
048802231eccee2a6db341d1a4e92b2b1671eb287da215ad35fcf2bad70fa700
Stealc
2ea252fc14bd9190e6a6d57b8f2ecb7870a4eecf01acfbba9d0f698838f03fe8
Stealc
b67d10e83ae21e308815e08d8412da53dd3b038d7d8905218aebb19302ffe146
Stealc
b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8
Stealc
d963acee9e469ee9b95e16ca8d4f77412663b6f92928d885cd35c82595bea7ef
Stealc
e6c76393ad6b5516ed6e84adbd0687f981bf3c419e99d9c235a6948e63d383d4
Stealc
+ 12 additional samples on MalwareBazaar
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:stealc botnet:4dd39d botnet:jony discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/240703-eng99s1apj/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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://85.28.47.4
http://77.91.77.82
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/82d1d955-731b-44fd-ac3e-fe546758bd42
Unpacked files
SH256 hash:
41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d
MD5 hash:
d961b76024edf043b709ae146a38a4c7
SHA1 hash:
e520a1872769d35e045fba592f7987eb97e6f175
Link:
https://www.unpac.me/results/8bbc0fed-f220-4b2d-b050-9f1006471ad2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d

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:Borland
Create hunting rule
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs
Create hunting rule
Author:ditekSHen
Description:Detect binaries embedding considerable number of MFA browser extension IDs.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:malware_Stealc_str
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Create hunting rule
Author:Elastic Security
Rule name:yara_template
Create hunting rule

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Stealc

Executable exe 41312792dcc936995c9e6c4b645482195a80d021ec58837971068afb6416b44d

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2909131/
  
URLhaus
https://urlhaus.abuse.ch/url/2909129/
  
URLhaus
https://urlhaus.abuse.ch/url/2917374/
  
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