MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aef44846abc5bf334b20a8acb9991bf0293170b6a65d49a84f184adcd3529216. 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: 18


Intelligence 18 IOCs 1 YARA 11 File information Comments

SHA256 hash: aef44846abc5bf334b20a8acb9991bf0293170b6a65d49a84f184adcd3529216
SHA3-384 hash: a6437fabd2af837ccfb876954c2cbedf5d143d077620be8aa5d4a8cd8f0df11afe0e93a3fea7b86ce8a1a0ff4723dba1
SHA1 hash: 8d81d525dbae6a314565309531f46fa0ddd65b3f
MD5 hash: bdb4e6d1ef19a3ffe4c2f75819c209e9
humanhash: queen-one-shade-shade
File name:a96b3ddd991bc4a88831685ef44cbd4ad7945a4afc3a028f42812f269d513674_payload.exe
Download: download sample
Signature Stealc
File size:192'000 bytes
First seen:2024-08-18 22:38:06 UTC
Last seen:2024-08-22 23:55:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 75f38a281962eafd8c14d2b02cfcdab6 (17 x Stealc, 1 x MarsStealer)
ssdeep 3072:q1V81NFj5qD6o8KaxfE54HnnGiayl+beX8njRMel10pmOFrJKa:q1C1jj5q62aOanGiqbIeeeljOFdKa
TLSH T192146D30F543403DE5A205FE6ADE5F6AE89D2D321324C0D763D26B8C26F11F5A875A2B
TrID 43.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
22.9% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
9.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter ukycircle
Tags:exe Stealc

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://46.8.231.109/c4754d4f680ead72.php https://threatfox.abuse.ch/ioc/1313452/

Intelligence


File Origin
# of uploads :
2
# of downloads :
444
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
a96b3ddd991bc4a88831685ef44cbd4ad7945a4afc3a028f42812f269d513674_payload.exe
Verdict:
Malicious activity
Analysis date:
2024-08-18 22:39:29 UTC
Tags:
stealer stealc loader lumma vidar

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
Execution Infostealer Network Stealth Trojan
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
microsoft_visual_cc stealer
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:
LummaC, Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has a writeable .text section
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1494668 Sample: a96b3ddd991bc4a88831685ef44... Startdate: 19/08/2024 Architecture: WINDOWS Score: 100 77 weiggheticulop.shop 2->77 79 tenntysjuxmz.shop 2->79 81 9 other IPs or domains 2->81 101 Suricata IDS alerts for network traffic 2->101 103 Found malware configuration 2->103 105 Malicious sample detected (through community Yara rule) 2->105 107 13 other signatures 2->107 11 a96b3ddd991bc4a88831685ef44cbd4ad7945a4afc3a028f42812f269d513674_payload.exe 39 2->11         started        signatures3 process4 dnsIp5 85 147.45.44.104, 49705, 49743, 80 FREE-NET-ASFREEnetEU Russian Federation 11->85 87 46.8.231.109, 49704, 80 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 11->87 61 C:\Users\user\AppData\...\softokn3[1].dll, PE32 11->61 dropped 63 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 11->63 dropped 65 C:\Users\user\AppData\...\mozglue[1].dll, PE32 11->65 dropped 67 13 other files (9 malicious) 11->67 dropped 133 Tries to steal Mail credentials (via file / registry access) 11->133 135 Found many strings related to Crypto-Wallets (likely being stolen) 11->135 137 Tries to harvest and steal browser information (history, passwords, etc) 11->137 139 4 other signatures 11->139 16 cmd.exe 1 11->16         started        18 cmd.exe 1 11->18         started        file6 signatures7 process8 process9 20 KECBGCGCGI.exe 1 16->20         started        23 conhost.exe 16->23         started        25 DBAAFIDGDA.exe 1 18->25         started        27 conhost.exe 18->27         started        signatures10 109 Machine Learning detection for dropped file 20->109 111 Writes to foreign memory regions 20->111 113 Allocates memory in foreign processes 20->113 29 RegAsm.exe 1 37 20->29         started        34 RegAsm.exe 20->34         started        36 RegAsm.exe 20->36         started        38 RegAsm.exe 20->38         started        115 Multi AV Scanner detection for dropped file 25->115 117 Contains functionality to inject code into remote processes 25->117 119 Injects a PE file into a foreign processes 25->119 121 LummaC encrypted strings found 25->121 40 RegAsm.exe 25->40         started        process11 dnsIp12 89 195.201.118.191, 443, 49710, 49716 HETZNER-ASDE Germany 29->89 91 steamcommunity.com 23.210.122.61, 443, 49707, 49727 AKAMAI-ASUS United States 29->91 69 C:\Users\user\...\66bfee9fd7d9a_lumma[1].exe, PE32 29->69 dropped 71 C:\Users\user\...\66bddfcb52736_vidar[1].exe, PE32 29->71 dropped 73 C:\ProgramData\HDBKFHIJKJ.exe, PE32 29->73 dropped 75 C:\ProgramData\CBAFCAKEHD.exe, PE32 29->75 dropped 141 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->141 143 Found many strings related to Crypto-Wallets (likely being stolen) 29->143 145 Tries to harvest and steal ftp login credentials 29->145 151 3 other signatures 29->151 42 CBAFCAKEHD.exe 29->42         started        45 HDBKFHIJKJ.exe 29->45         started        47 cmd.exe 29->47         started        93 potentioallykeos.shop 172.67.148.102, 443, 49708, 49747 CLOUDFLARENETUS United States 40->93 95 interactiedovspm.shop 172.67.161.217, 443, 49709, 49749 CLOUDFLARENETUS United States 40->95 97 4 other IPs or domains 40->97 147 Found evasive API chain (may stop execution after checking mutex) 40->147 149 Searches for specific processes (likely to inject) 40->149 file13 signatures14 process15 signatures16 123 Machine Learning detection for dropped file 42->123 125 Writes to foreign memory regions 42->125 127 Allocates memory in foreign processes 42->127 49 RegAsm.exe 42->49         started        52 RegAsm.exe 42->52         started        129 Multi AV Scanner detection for dropped file 45->129 131 Injects a PE file into a foreign processes 45->131 54 RegAsm.exe 45->54         started        57 conhost.exe 47->57         started        59 timeout.exe 47->59         started        process17 dnsIp18 99 Tries to harvest and steal browser information (history, passwords, etc) 49->99 83 23.67.133.187, 443, 49759, 49760 AKAMAI-ASN1EU United States 54->83 signatures19
Threat name:
Win32.Trojan.Stealc
Status:
Malicious
First seen:
2024-08-18 22:39:05 UTC
File Type:
PE (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:default credential_access discovery spyware stealer
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Lumma Stealer, LummaC
Stealc
Vidar
Malware Config
C2 Extraction:
http://46.8.231.109
https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk
https://cagedwifedsozm.shop/api
https://potentioallykeos.shop/api
https://interactiedovspm.shop/api
https://charecteristicdxp.shop/api
https://deicedosmzj.shop/api
https://southedhiscuso.shop/api
https://consciousourwi.shop/api
https://tenntysjuxmz.shop/api
Unpacked files
SH256 hash:
aef44846abc5bf334b20a8acb9991bf0293170b6a65d49a84f184adcd3529216
MD5 hash:
bdb4e6d1ef19a3ffe4c2f75819c209e9
SHA1 hash:
8d81d525dbae6a314565309531f46fa0ddd65b3f
Detections:
stealc
Parent samples :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 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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:malware_Stealc_str
Author:JPCERT/CC Incident Response Group
Description:Stealc infostealer
Rule name:Stealc_unpacked_PulseIntel
Author:PulseIntel
Description:Stealc Payload
Rule name:Vidar_unpacked_PulseIntel
Author:PulseIntel
Description:Vidar Payload
Rule name:Windows_Generic_Threat_2bba6bae
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_5d3f297c
Author:Elastic Security
Rule name:Windows_Trojan_Stealc_b8ab9ab5
Author:Elastic Security

File information


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

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
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::OpenProcess
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW

Comments