MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79a57ce64cf1aadccd3f1b74686209416ef9c4cd45d4ac9b28ff9ea016ec8955. 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 1 YARA 4 File information Comments

SHA256 hash: 79a57ce64cf1aadccd3f1b74686209416ef9c4cd45d4ac9b28ff9ea016ec8955
SHA3-384 hash: ebae85507ebbf84a798460eb3aafe50f1450fe57ff57425d2fcd8921b09ca73012293c6ab4c6fa81225f12aa95280d55
SHA1 hash: 602382bc894def4541e9bab78a5015b020d6cc7d
MD5 hash: f42c96419b2d60b119735e324adfb433
humanhash: mississippi-three-east-south
File name:f42c96419b2d60b119735e324adfb433.exe
Download: download sample
Signature Stealc
File size:218'112 bytes
First seen:2024-10-09 01:30:07 UTC
Last seen:2024-10-09 02:26:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c7735ee370f510f36c730e8b9e3421cf (1 x Stealc)
ssdeep 3072:HMcLOshz82bi5xTfsRzSF+5QSItt0rebP+fagSILKd:scLOshz82m6RzfItt08+faz
Threatray 2'468 similar samples on MalwareBazaar
TLSH T14B24E51BA9E17C1DE3A647354FACF7DC7B2FB8629D31534A212C6E4A28716B0C523352
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 12716c4cf4d4d4c4 (2 x Stealc)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://45.66.10.126/bfecb730b712bc29.php

Indicators Of Compromise (IOCs)


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

IOCThreatFox Reference
http://45.66.10.126/bfecb730b712bc29.php https://threatfox.abuse.ch/ioc/1334764/

Intelligence


File Origin
# of uploads :
2
# of downloads :
433
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f42c96419b2d60b119735e324adfb433.exe
Verdict:
Malicious activity
Analysis date:
2024-10-09 01:31:06 UTC
Tags:
loader smokeloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
70%
Tags:
Phishing Hype Onli
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
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:
SmokeLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the windows firewall
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1529542 Sample: T1TmLXusl0.exe Startdate: 09/10/2024 Architecture: WINDOWS Score: 100 53 nwgrus.ru 2->53 55 ninjahallnews.com 2->55 57 2 other IPs or domains 2->57 71 Multi AV Scanner detection for domain / URL 2->71 73 Suricata IDS alerts for network traffic 2->73 75 Found malware configuration 2->75 77 6 other signatures 2->77 10 T1TmLXusl0.exe 2->10         started        13 ejeftdd 2->13         started        15 vveftdd 2->15         started        17 msiexec.exe 2->17         started        signatures3 process4 signatures5 119 Detected unpacking (changes PE section rights) 10->119 121 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->121 123 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 10->123 19 explorer.exe 66 9 10->19 injected 125 Multi AV Scanner detection for dropped file 13->125 127 Machine Learning detection for dropped file 13->127 129 Maps a DLL or memory area into another process 13->129 131 Checks if the current machine is a virtual machine (disk enumeration) 15->131 133 Creates a thread in another existing process (thread injection) 15->133 135 Switches to a custom stack to bypass stack traces 15->135 process6 dnsIp7 59 201.110.209.55, 50059, 50060, 50062 UninetSAdeCVMX Mexico 19->59 61 23.145.40.164, 443, 49836 SURFAIRWIRELESS-IN-01US Reserved 19->61 63 2 other IPs or domains 19->63 45 C:\Users\user\AppData\Roaming\vveftdd, PE32 19->45 dropped 47 C:\Users\user\AppData\Roaming\ejeftdd, PE32 19->47 dropped 49 C:\Users\user\AppData\Local\Temp\FD65.exe, PE32+ 19->49 dropped 51 2 other malicious files 19->51 dropped 85 System process connects to network (likely due to code injection or exploit) 19->85 87 Benign windows process drops PE files 19->87 89 Injects code into the Windows Explorer (explorer.exe) 19->89 91 3 other signatures 19->91 24 FD65.exe 2 19->24         started        27 5FC1.exe 19->27         started        29 explorer.exe 18 19->29         started        31 5 other processes 19->31 file8 signatures9 process10 signatures11 93 Multi AV Scanner detection for dropped file 24->93 95 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 24->95 97 Machine Learning detection for dropped file 24->97 115 2 other signatures 24->115 33 cmd.exe 24->33         started        99 Detected unpacking (changes PE section rights) 27->99 101 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 27->101 103 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 27->103 117 4 other signatures 27->117 105 System process connects to network (likely due to code injection or exploit) 29->105 107 Found evasive API chain (may stop execution after checking mutex) 29->107 109 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 29->109 111 Tries to steal Mail credentials (via file / registry access) 29->111 113 Tries to harvest and steal browser information (history, passwords, etc) 31->113 process12 signatures13 65 Uses netsh to modify the Windows network and firewall settings 33->65 67 Uses ipconfig to lookup or modify the Windows network settings 33->67 69 Modifies the windows firewall 33->69 36 WMIC.exe 33->36         started        39 systeminfo.exe 33->39         started        41 conhost.exe 33->41         started        43 17 other processes 33->43 process14 signatures15 79 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 36->79 81 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 36->81 83 Queries sensitive service information (via WMI, Win32_StartupCommand, often done to detect sandboxes) 36->83
Threat name:
Win32.Trojan.SmokeLoader
Status:
Malicious
First seen:
2024-10-09 01:31:04 UTC
File Type:
PE (Exe)
Extracted files:
62
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Result
Malware family:
smokeloader
Score:
  10/10
Tags:
family:smokeloader botnet:pub2 backdoor discovery trojan
Behaviour
Checks SCSI registry key(s)
Program crash
System Location Discovery: System Language Discovery
SmokeLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a9918c23a31211ab32fdd163e49fc5313007d652e0896f6b923711378b459509
MD5 hash:
422b7b725003f71a15519c67313e3eef
SHA1 hash:
808f558da78522edaf9cee4a83365049adee2f08
Detections:
SmokeLoaderStage2 win_smokeloader_a2
SH256 hash:
79a57ce64cf1aadccd3f1b74686209416ef9c4cd45d4ac9b28ff9ea016ec8955
MD5 hash:
f42c96419b2d60b119735e324adfb433
SHA1 hash:
602382bc894def4541e9bab78a5015b020d6cc7d
Malware family:
SmokeLoader
Verdict:
Malicious
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks

File information


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

Web download

Stealc

Executable exe 79a57ce64cf1aadccd3f1b74686209416ef9c4cd45d4ac9b28ff9ea016ec8955

(this sample)

  
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_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::DeleteVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::ReadConsoleOutputW
KERNEL32.dll::WriteConsoleOutputCharacterA
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleAliasExesLengthW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::GetFileAttributesA
KERNEL32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceA

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