MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686
SHA3-384 hash: 8f6d9e3e912177ecd98b40823044b7fccbb1c0289d9f10387e7a59497d73b5b1b65b931aa0576a2c039973cb6a441e29
SHA1 hash: 654e52be3172f400c9245a1acab7ee6cc5a3fde5
MD5 hash: 84394fd23d755be3a32a02161f23db10
humanhash: maine-east-alanine-georgia
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:1'841'664 bytes
First seen:2024-11-28 16:22:17 UTC
Last seen:Never
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:BjB4Ltna+HYkxc0iyIbXeE1YtbNIUeUXG3bXF5B2BKcSiemDemK4iSKx1IB2ZULC:BjBQIBkViyoOEA2g+F5ESj+pifxHXJS
TLSH T1C68533EA1DEF43C7D9F1D9B817A14B6B792CA17CC123682EDC106764CE67D1228E8C16
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 :
1
# of downloads :
386
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4c6b7ba6a2226ad15703f8917cab4cf1776e51da384d5a6f494bb15eb3c15590
Verdict:
Malicious activity
Analysis date:
2024-11-28 16:09:10 UTC
Tags:
lumma stealer themida loader stealc
Link:
https://app.any.run/tasks/3512a497-c8af-4912-9dca-68ba9df967b8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.32094.8592.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=674899f7e64d1c722d79baca
Tags:
autorun autoit gumen spam
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/674898f9d3b2d0d010aa6826/reports/fb6717a9-deac-4faf-b9f6-6c28f5155176/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/5ae54e3d-173e-476c-9b75-47527d52ffac
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1564672
Signature
AI detected suspicious sample
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
Detected unpacking (changes PE section rights)
Drops PE files to the document folder of the user
Drops PE files to the user root directory
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for sample
Maps a DLL or memory area into another process
Monitors registry run keys for changes
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Potentially malicious time measurement code found
Sigma detected: Suspicious Process Parents
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 download files via bitsadmin
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)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Amadeys stealer DLL
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1564672 Sample: file.exe Startdate: 28/11/2024 Architecture: WINDOWS Score: 100 110 Suricata IDS alerts for network traffic 2->110 112 Found malware configuration 2->112 114 Antivirus detection for URL or domain 2->114 116 11 other signatures 2->116 8 file.exe 37 2->8         started        13 msedge.exe 76 633 2->13         started        15 skotes.exe 2->15         started        process3 dnsIp4 92 185.215.113.16 WHOLESALECONNECTIONSNL Portugal 8->92 94 185.215.113.206, 49716, 49780, 49813 WHOLESALECONNECTIONSNL Portugal 8->94 96 127.0.0.1 unknown unknown 8->96 58 C:\Users\user\DocumentsGCFIIEBKEG.exe, PE32 8->58 dropped 60 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 8->60 dropped 62 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->62 dropped 68 11 other files (none is malicious) 8->68 dropped 126 Detected unpacking (changes PE section rights) 8->126 128 Attempt to bypass Chrome Application-Bound Encryption 8->128 130 Drops PE files to the document folder of the user 8->130 140 9 other signatures 8->140 17 msedge.exe 2 10 8->17         started        20 chrome.exe 8->20         started        23 cmd.exe 8->23         started        132 Maps a DLL or memory area into another process 13->132 25 identity_helper.exe 13->25         started        27 msedge.exe 13->27         started        29 identity_helper.exe 13->29         started        34 3 other processes 13->34 98 185.215.113.43 WHOLESALECONNECTIONSNL Portugal 15->98 100 31.41.244.11 AEROEXPRESS-ASRU Russian Federation 15->100 64 C:\Users\user\AppData\Local\...\tvtC9D3.exe, PE32 15->64 dropped 66 C:\Users\user\AppData\...\tvtC9D3[1].exe, PE32 15->66 dropped 134 Hides threads from debuggers 15->134 136 Tries to detect sandboxes / dynamic malware analysis system (registry check) 15->136 138 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 15->138 31 tvtC9D3.exe 15->31         started        file5 signatures6 process7 dnsIp8 102 Monitors registry run keys for changes 17->102 36 msedge.exe 17->36         started        74 192.168.2.6, 443, 49703, 49706 unknown unknown 20->74 76 239.255.255.250 unknown Reserved 20->76 38 chrome.exe 20->38         started        41 DocumentsGCFIIEBKEG.exe 25->41         started        45 conhost.exe 25->45         started        78 18.173.132.98 MIT-GATEWAYSUS United States 27->78 80 13.107.246.40, 443, 49870, 49881 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->80 82 24 other IPs or domains 27->82 72 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 31->72 dropped 104 Tries to download files via bitsadmin 31->104 106 Uses ping.exe to sleep 31->106 108 Uses ping.exe to check the status of other devices and networks 31->108 47 PING.EXE 31->47         started        49 bitsadmin.exe 31->49         started        file9 signatures10 process11 dnsIp12 84 www.google.com 142.250.181.100, 443, 49745, 49746 GOOGLEUS United States 38->84 86 plus.l.google.com 38->86 88 apis.google.com 38->88 70 C:\Users\user\AppData\Local\...\skotes.exe, PE32 41->70 dropped 142 Detected unpacking (changes PE section rights) 41->142 144 Tries to evade debugger and weak emulator (self modifying code) 41->144 146 Tries to detect virtualization through RDTSC time measurements 41->146 148 4 other signatures 41->148 51 skotes.exe 41->51         started        90 8.8.8.8 GOOGLEUS United States 47->90 54 conhost.exe 47->54         started        56 conhost.exe 49->56         started        file13 signatures14 process15 signatures16 118 Detected unpacking (changes PE section rights) 51->118 120 Tries to detect sandboxes and other dynamic analysis tools (window names) 51->120 122 Tries to evade debugger and weak emulator (self modifying code) 51->122 124 3 other signatures 51->124
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686/
Threat name:
Win32.Trojan.LummaStealer
Create hunting rule
Status:
Malicious
First seen:
2024-11-28 16:23:07 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vq4truqglbipaejokvytyfdbni63u6wvhe5j3ncbe73bu5d5k2da._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Similar samples:
error
Stealc
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:mars discovery evasion stealer
Link:
https://tria.ge/reports/241128-tvsrxaylbk/
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)
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/df179a6f-ee20-4f28-bb66-15c0b008e7c2
Unpacked files
SH256 hash:
7a95c67d042e685f51ab7a50f251a2278da076ded1c9b19a79012e90c8d6f75f
MD5 hash:
10646b30f8a33222680ff2cf2f5f7833
SHA1 hash:
bd1eb079f44095ae894fc9fcd410410c868dbfa2
Detections:
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/86f7c6a6-f1f0-4d91-800c-a8655612036c/
SH256 hash:
ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686
MD5 hash:
84394fd23d755be3a32a02161f23db10
SHA1 hash:
654e52be3172f400c9245a1acab7ee6cc5a3fde5
Link:
https://www.unpac.me/results/86f7c6a6-f1f0-4d91-800c-a8655612036c/
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac3938d20658/report/overview.html
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Web download

Stealc

Executable exe ac3938d2065850f0112e55713c14616a3dba7ad5393a9db44127f61a747d5686

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3279845/
  
URLhaus
https://urlhaus.abuse.ch/url/3284801/

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

Comments