MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420. 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 20 File information Comments
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SHA256 hash: ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420
SHA3-384 hash: aad6ae252d4824ccf0d3f4dcd2676fc64ef85eb0f35974f36f12e14a2d22aaae72b1355afb8fbccbfab4863753e55665
SHA1 hash: b55a8d60de946c9151de60df2225dce89c95be43
MD5 hash: 43a78a6987bf599db55f41bd3cd1d011
humanhash: golf-juliet-glucose-yankee
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'502'656 bytes
First seen:2024-07-03 09:47:47 UTC
Last seen:2024-07-03 10:29:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 001806c33a6e9fe5fbff34bdbd79b591 (112 x Stealc, 9 x MarsStealer, 1 x Amadey)
ssdeep 49152:Temt0UCcKZDPedhvpY6aUOisJzakKlfpazVxg4F2OhRoZqiwIG:NucKVERevisqlfMv1QO/oZJq
TLSH T155C533792661C13DFA5D7CB932124E03F315276F20E86E500E7CCB64759BDA88EA287D
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 :
3
# of downloads :
333
Origin country :
PT PT
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420.exe
Verdict:
Malicious activity
Analysis date:
2024-07-03 09:49:05 UTC
Tags:
stealer stealc loader antivm amadey botnet themida
Link:
https://app.any.run/tasks/f85a51dd-a2cf-431c-87cb-191a0a6aaf38

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:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66851eb8505ae615975ccd92win10vpnfull_triage
Tags:
Execution Generic Infostealer Network Stealth Trojan
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:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420
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/47c81165-9a45-4502-bc23-84bcf150c90c
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/1466778
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: 1466778 Sample: file.exe Startdate: 03/07/2024 Architecture: WINDOWS Score: 100 60 Snort IDS alert for network traffic 2->60 62 Multi AV Scanner detection for domain / URL 2->62 64 Found malware configuration 2->64 66 16 other signatures 2->66 9 file.exe 36 2->9         started        14 explorti.exe 2->14         started        16 explorti.exe 2->16         started        18 2 other processes 2->18 process3 dnsIp4 56 85.28.47.4, 49730, 49746, 80 GES-ASRU Russian Federation 9->56 58 77.91.77.81, 49732, 49744, 80 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 9->58 46 C:\Users\user\AppData\...\AKEGHIJJEH.exe, PE32 9->46 dropped 48 C:\Users\user\AppData\...\softokn3[1].dll, PE32 9->48 dropped 50 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 9->50 dropped 52 11 other files (7 malicious) 9->52 dropped 92 Detected unpacking (changes PE section rights) 9->92 94 Tries to steal Mail credentials (via file / registry access) 9->94 96 Found many strings related to Crypto-Wallets (likely being stolen) 9->96 104 4 other signatures 9->104 20 cmd.exe 1 9->20         started        22 cmd.exe 2 9->22         started        98 Hides threads from debuggers 14->98 100 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->100 102 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->102 file5 signatures6 process7 process8 24 AKEGHIJJEH.exe 4 20->24         started        28 conhost.exe 20->28         started        30 conhost.exe 22->30         started        file9 44 C:\Users\user\AppData\Local\...\explorti.exe, PE32 24->44 dropped 84 Antivirus detection for dropped file 24->84 86 Detected unpacking (changes PE section rights) 24->86 88 Machine Learning detection for dropped file 24->88 90 5 other signatures 24->90 32 explorti.exe 16 24->32         started        signatures10 process11 dnsIp12 54 77.91.77.82, 49742, 49745, 49747 FOTONTELECOM-TRANSIT-ASFOTONTELECOMISPRU Russian Federation 32->54 40 C:\Users\user\AppData\...\245ac6acac.exe, PE32 32->40 dropped 42 C:\Users\user\AppData\Local\...\random[1].exe, PE32 32->42 dropped 68 Antivirus detection for dropped file 32->68 70 Detected unpacking (changes PE section rights) 32->70 72 Tries to detect sandboxes and other dynamic analysis tools (window names) 32->72 74 5 other signatures 32->74 37 245ac6acac.exe 12 32->37         started        file13 signatures14 process15 signatures16 76 Antivirus detection for dropped file 37->76 78 Multi AV Scanner detection for dropped file 37->78 80 Detected unpacking (changes PE section rights) 37->80 82 2 other signatures 37->82
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-07-03 08:41:20 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=75oigygj7byfiuszodc25nyhzqlxfemqiidllqmlbhqonywooqqa._file
Verdict:
malicious
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-lsrsts1cmj/
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 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
Checks BIOS information in registry
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/cd77d37f-d97a-404f-bc6c-9bdba2727975
Unpacked files
SH256 hash:
ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420
MD5 hash:
43a78a6987bf599db55f41bd3cd1d011
SHA1 hash:
b55a8d60de946c9151de60df2225dce89c95be43
Link:
https://www.unpac.me/results/73bd81c9-b66d-4350-adcf-dfc39d28bb9c/
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/ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420

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 ff5c8360c9f87054525970c5aeb707cc177291904206b5c18b09e0e6e2ce7420

(this sample)

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

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