MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78
SHA3-384 hash: a47697cf1c5c48e4389acf3bbcb03a455197e6346c388949b863ff00c2a874c0641466029f56b27810a87939c1610041
SHA1 hash: 507d027dce503e13a3ebe13ed50b7abc1bcc264a
MD5 hash: 506831a4617df928f046e80d3a914b1b
humanhash: violet-johnny-venus-comet
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'805'824 bytes
First seen:2024-11-16 07:45:10 UTC
Last seen:2024-11-16 07:45:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 24576:qbi6fpia97PZmNIL+aM4CG6tGH7JLLdfNWyLpz2m/OOcFY5aKnWErvTCt/0znY1v:qeyiI+BGHFWwP/xcx8W1+WIu1
TLSH T1CD85334F0DDBA0B6E7A93DB128CD9F67BDE08A11E343017D5952E1BBC65D2B3A104AC1
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)
Magika pebin
Reporter Bitsight
Tags:exe Stealc


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
434
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-16 07:45:59 UTC
Tags:
lumma stealer loader themida stealc
Link:
https://app.any.run/tasks/17b1ed97-8437-4fb5-bf9b-494a934cf981

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.26678.2215.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67384f314ca0f9db40c4974c
Tags:
autorun spam lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
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:
microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/67384dbe555a4e6764d12ec7/reports/9921918b-c55c-418c-8577-5992f894fda7/overview
Verdict:
Malicious
Labled as:
Symmi.Generic
Link:
https://www.hybrid-analysis.com/sample/91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/5e8eb97f-cf48-4add-a61e-aff91d9ccc0c
Result
Threat name:
PureCrypter, LummaC, Amadey, LummaC Stea
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1556859
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected PureCrypter Trojan
Detected unpacking (changes PE section rights)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Disables Windows Defender Tamper protection
Drops PE files to the document folder of the user
Drops PE files to the user root directory
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
LummaC encrypted strings found
Machine Learning detection for sample
Maps a DLL or memory area into another process
Modifies windows update settings
Monitors registry run keys for changes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sigma detected: New RUN Key Pointing to Suspicious Folder
Suricata IDS alerts 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 LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1556859 Sample: file.exe Startdate: 16/11/2024 Architecture: WINDOWS Score: 100 84 frogmen-smell.sbs 2->84 122 Suricata IDS alerts for network traffic 2->122 124 Found malware configuration 2->124 126 Antivirus detection for URL or domain 2->126 128 12 other signatures 2->128 9 skotes.exe 2->9         started        14 file.exe 37 2->14         started        16 1b752ec35e.exe 2->16         started        18 5 other processes 2->18 signatures3 process4 dnsIp5 112 185.215.113.43 WHOLESALECONNECTIONSNL Portugal 9->112 66 C:\Users\user\AppData\...\8685b2f592.exe, PE32 9->66 dropped 68 C:\Users\user\AppData\...\7291b4b645.exe, PE32 9->68 dropped 70 C:\Users\user\AppData\...\1b752ec35e.exe, PE32 9->70 dropped 78 3 other malicious files 9->78 dropped 154 Creates multiple autostart registry keys 9->154 156 Hides threads from debuggers 9->156 176 2 other signatures 9->176 20 8685b2f592.exe 9->20         started        23 1b752ec35e.exe 9->23         started        26 7291b4b645.exe 9->26         started        28 skotes.exe 9->28         started        114 185.215.113.206, 49707, 49771, 49825 WHOLESALECONNECTIONSNL Portugal 14->114 116 185.215.113.16 WHOLESALECONNECTIONSNL Portugal 14->116 118 127.0.0.1 unknown unknown 14->118 72 C:\Users\user\DocumentsFBKECFIIEH.exe, PE32 14->72 dropped 74 C:\Users\user\AppData\...\softokn3[1].dll, PE32 14->74 dropped 76 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->76 dropped 80 11 other files (3 malicious) 14->80 dropped 158 Detected unpacking (changes PE section rights) 14->158 160 Attempt to bypass Chrome Application-Bound Encryption 14->160 162 Drops PE files to the document folder of the user 14->162 178 6 other signatures 14->178 30 cmd.exe 14->30         started        32 msedge.exe 2 10 14->32         started        34 chrome.exe 14->34         started        164 Query firmware table information (likely to detect VMs) 16->164 166 Tries to harvest and steal ftp login credentials 16->166 168 Tries to harvest and steal browser information (history, passwords, etc) 16->168 120 192.168.2.4 unknown unknown 18->120 170 Maps a DLL or memory area into another process 18->170 172 Tries to steal Crypto Currency Wallets 18->172 174 Detected PureCrypter Trojan 18->174 36 msedge.exe 18->36         started        39 9 other processes 18->39 file6 signatures7 process8 dnsIp9 130 Multi AV Scanner detection for dropped file 20->130 132 Detected unpacking (changes PE section rights) 20->132 134 Tries to detect sandboxes and other dynamic analysis tools (window names) 20->134 152 4 other signatures 20->152 92 frogmen-smell.sbs 104.21.80.55 CLOUDFLARENETUS United States 23->92 136 Query firmware table information (likely to detect VMs) 23->136 138 Tries to evade debugger and weak emulator (self modifying code) 23->138 140 Tries to steal Crypto Currency Wallets 23->140 142 LummaC encrypted strings found 23->142 41 chrome.exe 23->41         started        144 Hides threads from debuggers 26->144 146 Tries to detect sandboxes / dynamic malware analysis system (registry check) 26->146 148 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 26->148 43 DocumentsFBKECFIIEH.exe 30->43         started        47 conhost.exe 30->47         started        150 Monitors registry run keys for changes 32->150 49 msedge.exe 32->49         started        94 192.168.2.6, 443, 49704, 49705 unknown unknown 34->94 96 239.255.255.250 unknown Reserved 34->96 51 chrome.exe 34->51         started        98 23.218.232.182 RAYA-ASEG United States 36->98 100 104.208.16.91, 443, 49909, 49940 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 36->100 102 23 other IPs or domains 36->102 64 C:\Users\user\AppData\Local\...\Cookies, SQLite 36->64 dropped 104 3 other IPs or domains 39->104 54 chrome.exe 39->54         started        file10 signatures11 process12 dnsIp13 56 chrome.exe 41->56         started        59 chrome.exe 41->59         started        82 C:\Users\user\AppData\Local\...\skotes.exe, PE32 43->82 dropped 180 Detected unpacking (changes PE section rights) 43->180 182 Tries to evade debugger and weak emulator (self modifying code) 43->182 184 Tries to detect virtualization through RDTSC time measurements 43->184 186 3 other signatures 43->186 61 skotes.exe 43->61         started        86 www.google.com 142.250.184.196, 443, 49713, 49719 GOOGLEUS United States 51->86 88 plus.l.google.com 142.250.185.174, 443, 49760 GOOGLEUS United States 51->88 90 2 other IPs or domains 51->90 file14 signatures15 process16 dnsIp17 106 142.250.186.132 GOOGLEUS United States 56->106 108 www.google.com 56->108 110 5 other IPs or domains 56->110 188 Detected unpacking (changes PE section rights) 61->188 190 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 61->190 192 Tries to evade debugger and weak emulator (self modifying code) 61->192 194 3 other signatures 61->194 signatures18
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78/
Threat name:
Win32.Spyware.Stealc
Create hunting rule
Status:
Malicious
First seen:
2024-11-16 07:46:11 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
27 of 38 (71.05%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sejw2swjvmta4qsy7imhn3ipa4ocjrmi2camsb3cj7naztmj5r4a._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery evasion
Link:
https://tria.ge/reports/241116-jlyxfssekf/
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/87e5d07b-06b8-4fe1-a6e8-ae9eadc6691b
Unpacked files
SH256 hash:
24d6de7edfce76cc9ccff701195ce915e73e576431dedeaf78e5c33e541ad627
MD5 hash:
552b64ab238a3b9381b4067d86c9b7eb
SHA1 hash:
725a62dc283a23225e97e482fb2323b9f805ea6c
Detections:
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/fc198fe3-f4c3-4a70-8b71-e20c04895930/
SH256 hash:
91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78
MD5 hash:
506831a4617df928f046e80d3a914b1b
SHA1 hash:
507d027dce503e13a3ebe13ed50b7abc1bcc264a
Link:
https://www.unpac.me/results/fc198fe3-f4c3-4a70-8b71-e20c04895930/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91136d4ac9ab/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/91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78

File information

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

Web download

Stealc

Executable exe 91136d4ac9ab260e4258fa1876ed0f071c24c588d080c907624fda0ccd89ec78

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3273391/
  
URLhaus
https://urlhaus.abuse.ch/url/3279845/
  
URLhaus
https://urlhaus.abuse.ch/url/3079150/

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

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