MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
SHA3-384 hash: e996b2fa45d7df45c59ab25d34d70f6a046f73e959ed6388dbc881fa3011341031e654d39f485f780c81dc20f9bacb2b
SHA1 hash: fbadb3784b44770045f6c84f3cc2db34e1b6863a
MD5 hash: fd192fb05e0cd219b14c5bf345f33cfb
humanhash: finch-bluebird-triple-violet
File name:fd192fb05e0cd219b14c5bf345f33cfb.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:413'184 bytes
First seen:2024-09-01 16:25:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f11d3344d5447b8895a001459fe30f13 (1 x Stealc, 1 x GCleaner)
ssdeep 6144:lHansXZYIWhpZ9fRPINs35KM9JtzFreUw+qtR:lH4sXnKp76OsMvtzFr++
TLSH T17A94C013A2E1FC22E6665A319D6DC2F4E66EF9198F19737B32187F1F28701A1C572312
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 1a72c2db98585c0c (9 x Stealc, 6 x Tofsee, 5 x Smoke Loader)
Reporter abuse_ch
Tags:exe Stealc


Avatar
abuse_ch
Stealc C2:
http://91.202.233.158/e96ea2db21fa9a1b.php

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
http://91.202.233.158/e96ea2db21fa9a1b.php https://threatfox.abuse.ch/ioc/1319349/

Intelligence

File Origin
# of uploads :
1
# of downloads :
461
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fd192fb05e0cd219b14c5bf345f33cfb.exe
Verdict:
Malicious activity
Analysis date:
2024-09-01 16:26:06 UTC
Tags:
loader smokeloader stealer stealc
Link:
https://app.any.run/tasks/e7a2011d-35c2-4687-8db7-5cde542349f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d4959da0c486d2f793ecbd
Tags:
Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
DNS request
Connection attempt
Sending an HTTP POST request
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/66d4959acf394bc42d264032/reports/edd48ee8-70cb-48a2-9b3b-1a405dfe261a/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/2021cf95-4317-4af6-a0ea-29d469eb452f
Result
Threat name:
CryptOne, SmokeLoader, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1502474
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
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)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Detected unpacking (changes PE section rights)
Drops PE files with a suspicious file extension
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found stalling execution ending in API Sleep call
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Drops script at startup location
Sigma detected: Suspicious Command Patterns In Scheduled Task Creation
Sigma detected: WScript or CScript Dropper
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 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)
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript called in batch mode (surpress errors)
Yara detected CryptOne packer
Yara detected Powershell download and execute
Yara detected SmokeLoader
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1502474 Sample: h8jGj6Qe78.exe Startdate: 01/09/2024 Architecture: WINDOWS Score: 100 92 ycMmBvpGeMcYHBMfFqkIrUsoh.ycMmBvpGeMcYHBMfFqkIrUsoh 2->92 94 www.darkviolet-alpaca-923878.hostingersite.com 2->94 96 2 other IPs or domains 2->96 106 Multi AV Scanner detection for domain / URL 2->106 108 Suricata IDS alerts for network traffic 2->108 110 Found malware configuration 2->110 112 16 other signatures 2->112 10 h8jGj6Qe78.exe 2->10         started        13 ewggbbh 2->13         started        15 wscript.exe 2->15         started        17 ewggbbh 2->17         started        signatures3 process4 signatures5 140 Detected unpacking (changes PE section rights) 10->140 142 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 10->142 144 Maps a DLL or memory area into another process 10->144 154 3 other signatures 10->154 19 explorer.exe 71 15 10->19 injected 146 Multi AV Scanner detection for dropped file 13->146 148 Machine Learning detection for dropped file 13->148 150 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 13->150 152 Windows Scripting host queries suspicious COM object (likely to drop second stage) 15->152 24 SwiftServe.scr 15->24         started        process6 dnsIp7 98 94.228.169.44, 56160, 80 SSERVICE-ASRU Russian Federation 19->98 100 free.cdn.hstgr.net 84.32.84.144, 443, 56171 NTT-LT-ASLT Lithuania 19->100 102 2 other IPs or domains 19->102 62 C:\Users\user\AppData\Roaming\ewggbbh, PE32 19->62 dropped 64 C:\Users\user\AppData\Local\Temp\DFA6.exe, PE32 19->64 dropped 66 C:\Users\user\AppData\Local\Temp\329C.exe, PE32 19->66 dropped 68 C:\Users\user\...\ewggbbh:Zone.Identifier, ASCII 19->68 dropped 114 System process connects to network (likely due to code injection or exploit) 19->114 116 Benign windows process drops PE files 19->116 118 Deletes itself after installation 19->118 120 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->120 26 DFA6.exe 19->26         started        30 329C.exe 23 19->30         started        32 RegAsm.exe 19->32         started        35 3 other processes 19->35 file8 signatures9 process10 dnsIp11 86 C:\Users\user\AppData\...\svchost015.exe, PE32 26->86 dropped 156 Multi AV Scanner detection for dropped file 26->156 158 Contains functionality to inject code into remote processes 26->158 160 Writes to foreign memory regions 26->160 172 3 other signatures 26->172 37 svchost015.exe 26->37         started        162 Machine Learning detection for dropped file 30->162 164 Found stalling execution ending in API Sleep call 30->164 42 cmd.exe 2 30->42         started        90 45.202.35.38, 56001, 56180 ONL-HKOCEANNETWORKLIMITEDHK Seychelles 32->90 166 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 32->166 168 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 32->168 170 Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines) 32->170 174 2 other signatures 32->174 88 C:\Users\user\AppData\...\SwiftServe.url, MS 35->88 dropped 44 conhost.exe 35->44         started        46 schtasks.exe 1 35->46         started        48 conhost.exe 35->48         started        50 SwiftServe.scr 35->50         started        file12 signatures13 process14 dnsIp15 104 91.202.233.158, 56177, 80 M247GB Russian Federation 37->104 76 C:\Users\user\AppData\...\softokn3[1].dll, PE32 37->76 dropped 78 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 37->78 dropped 80 C:\Users\user\AppData\...\mozglue[1].dll, PE32 37->80 dropped 84 9 other files (5 malicious) 37->84 dropped 128 Tries to steal Mail credentials (via file / registry access) 37->128 130 Found many strings related to Crypto-Wallets (likely being stolen) 37->130 132 Tries to harvest and steal ftp login credentials 37->132 138 3 other signatures 37->138 82 C:\Users\user\AppData\Local\Temp\...\Burn.pif, PE32 42->82 dropped 134 Drops PE files with a suspicious file extension 42->134 136 Uses schtasks.exe or at.exe to add and modify task schedules 42->136 52 Burn.pif 5 42->52         started        56 cmd.exe 2 42->56         started        58 conhost.exe 42->58         started        60 7 other processes 42->60 file16 signatures17 process18 file19 70 C:\Users\user\AppData\...\SwiftServe.scr, PE32 52->70 dropped 72 C:\Users\user\AppData\Local\...\SwiftServe.js, ASCII 52->72 dropped 74 C:\Users\user\AppData\Local\...\RegAsm.exe, PE32 52->74 dropped 122 Drops PE files with a suspicious file extension 52->122 124 Writes to foreign memory regions 52->124 126 Injects a PE file into a foreign processes 52->126 signatures20
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451/
Threat name:
Win32.Trojan.Operaloader
Create hunting rule
Status:
Malicious
First seen:
2024-09-01 16:26:10 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=awmskbirw6z6yyzqh6qu5ghn54yjfvqwctqhcbwpe5f5nvb3eriq._file
Verdict:
malicious
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 backdoor discovery trojan
Link:
https://tria.ge/reports/240901-txhdyswfqc/
Behaviour
Checks SCSI registry key(s)
Program crash
System Location Discovery: System Language Discovery
SmokeLoader
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/b0ca8c69-ccf3-4f42-a4f6-8e3d2648f301
Unpacked files
SH256 hash:
a50f0f6520f575916cf5e95721f4f4465501dfc2e9d3bcf22e99b10b91717c24
MD5 hash:
a53f4ff99fb51fea931a577880ec744e
SHA1 hash:
1355c69a04f9e283dac7d9a234c0f18183432d58
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/a6414796-5bcd-4d09-86e6-44ebbd9fc846/
Parent samples :
0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
822d4a0dc03fa0348fc8a12c3e0c3c10ad433abbf34f858b64406beaf8606d87
f691d08d4d08a092f52d63eb5a5fce0cbdeeaa042c18282c73ac5ebb627c25d3
9a23e3b2d894fb3af028f7bc2eae2da52c723eb2cc9b76a5d4efc98bdcba92a1
1f527c33a9a07976aee7a744579f7efe6ca704660c4b1d8c86e138cfe9000c45
dfe6226632702de153cf28a07ce5939072365797a8cc358932a62052a0c7f010
SH256 hash:
0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451
MD5 hash:
fd192fb05e0cd219b14c5bf345f33cfb
SHA1 hash:
fbadb3784b44770045f6c84f3cc2db34e1b6863a
Link:
https://www.unpac.me/results/a6414796-5bcd-4d09-86e6-44ebbd9fc846/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0599250511b7/report/overview.html
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/0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_Nimplant_PE
Create hunting rule
Author:daniyyell
Description:Detects malicious nimplant variant PE malware.

File information

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

Web download

Stealc

Executable exe 0599250511b7b3ec63303fa14e98edef3092d61614e07106cf274bd6d43b2451

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3112849/
  
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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::SetProcessShutdownParameters
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceExA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::PeekConsoleInputA
KERNEL32.dll::ReadConsoleInputW
KERNEL32.dll::SetConsoleCP
KERNEL32.dll::GetConsoleAliasExesW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleDisplayMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::GetTempPathA
KERNEL32.dll::SetVolumeMountPointA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW

Comments