MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb. 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 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb
SHA3-384 hash: 48bddfcd2503905f05259fd6fd2456ebdbd268e222508a654e445888eb2049cdf8f726c5178dd9716ee1945f9f205c1f
SHA1 hash: c1a8c82f70d72dd66d1b4383f8728dc3e32f3a22
MD5 hash: e96aca70fff7cef90aeaecfd082dbaad
humanhash: march-eighteen-glucose-purple
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:5'187'584 bytes
First seen:2024-12-05 20:30:38 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 49152:4OrMoVPolZWdHyUmZ0y0cL+AoUcIPOYvufkXhQqnL:4PoPolZWdHyUmZv0U+AoU+YvufkRb
TLSH T1FC362991A10961CFDCCA667C4527CD83DF6C02E54B288AC3A969B5BBBD67CCC12F9C14
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 :
429
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
QKFBK_file.exe
Verdict:
Malicious activity
Analysis date:
2024-12-05 20:39:36 UTC
Tags:
stealer stealc loader themida amadey botnet lumma
Link:
https://app.any.run/tasks/01ad7718-ad8e-4df4-ad35-23f4a0b506a7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.22876.7192.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67520d8abc8c6beb3076263c
Tags:
vmdetect autorun autoit spam
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Creating a 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:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/8a8207a0-8e07-4db8-87b7-66bf210d69a3
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1569572
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
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
Machine Learning detection for dropped file
Machine Learning detection for sample
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
Sample uses string decryption to hide its real strings
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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1569572 Sample: file.exe Startdate: 05/12/2024 Architecture: WINDOWS Score: 100 73 Suricata IDS alerts for network traffic 2->73 75 Found malware configuration 2->75 77 Antivirus detection for URL or domain 2->77 79 13 other signatures 2->79 8 file.exe 36 2->8         started        13 skotes.exe 15 2->13         started        15 msedge.exe 9 2->15         started        process3 dnsIp4 63 185.215.113.206, 49718, 49790, 49837 WHOLESALECONNECTIONSNL Portugal 8->63 65 185.215.113.16, 49875, 80 WHOLESALECONNECTIONSNL Portugal 8->65 67 127.0.0.1 unknown unknown 8->67 41 C:\Users\user\Documents\BFBGCFCFHC.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->43 dropped 45 C:\Users\user\AppData\Local\...\random[1].exe, PE32 8->45 dropped 51 11 other files (7 malicious) 8->51 dropped 91 Detected unpacking (changes PE section rights) 8->91 93 Attempt to bypass Chrome Application-Bound Encryption 8->93 95 Drops PE files to the document folder of the user 8->95 103 8 other signatures 8->103 17 cmd.exe 1 8->17         started        19 msedge.exe 2 10 8->19         started        22 chrome.exe 8->22         started        69 185.215.113.43, 50032, 50041, 80 WHOLESALECONNECTIONSNL Portugal 13->69 71 31.41.244.11, 50045, 80 AEROEXPRESS-ASRU Russian Federation 13->71 47 C:\Users\user\AppData\Local\...\wL3EGdM.exe, PE32 13->47 dropped 49 C:\Users\user\AppData\...\wL3EGdM[1].exe, PE32 13->49 dropped 97 Hides threads from debuggers 13->97 99 Tries to detect sandboxes / dynamic malware analysis system (registry check) 13->99 101 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 13->101 25 msedge.exe 15->25         started        file5 signatures6 process7 dnsIp8 27 BFBGCFCFHC.exe 4 17->27         started        31 conhost.exe 17->31         started        81 Monitors registry run keys for changes 19->81 33 msedge.exe 19->33         started        61 239.255.255.250 unknown Reserved 22->61 35 chrome.exe 22->35         started        signatures9 process10 dnsIp11 53 C:\Users\user\AppData\Local\...\skotes.exe, PE32 27->53 dropped 105 Antivirus detection for dropped file 27->105 107 Detected unpacking (changes PE section rights) 27->107 109 Machine Learning detection for dropped file 27->109 111 7 other signatures 27->111 38 skotes.exe 27->38         started        55 www3.l.google.com 142.250.181.142, 443, 49793 GOOGLEUS United States 35->55 57 play.google.com 172.217.19.238, 443, 49797 GOOGLEUS United States 35->57 59 4 other IPs or domains 35->59 file12 signatures13 process14 signatures15 83 Antivirus detection for dropped file 38->83 85 Detected unpacking (changes PE section rights) 38->85 87 Tries to detect sandboxes and other dynamic analysis tools (window names) 38->87 89 6 other signatures 38->89
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-12-05 20:31:06 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jg3v76vj5aiyrti4xhij5r7ehejl7dn7jsc6hypoaypbrz6yt35q._file
Verdict:
suspicious
Label(s):
stealc
Create hunting rule
Similar samples:
error
Stealc
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:drum discovery evasion stealer
Link:
https://tria.ge/reports/241205-zapgms1jes/
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/88008535-6aad-453d-bc8c-eefe8ea4be3d
Unpacked files
SH256 hash:
af43b7061debf213646b677f8f4bd99fb0a75f6e1a13323089f47504b254dc7c
MD5 hash:
e0a79cc20bef9c544f05c40ed96140fb
SHA1 hash:
216a9e67f474da559f0245813f2b4e166775751d
Detections:
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/f164c660-13ff-4a7a-bc5b-5770176fee3e/
SH256 hash:
49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb
MD5 hash:
e96aca70fff7cef90aeaecfd082dbaad
SHA1 hash:
c1a8c82f70d72dd66d1b4383f8728dc3e32f3a22
Link:
https://www.unpac.me/results/f164c660-13ff-4a7a-bc5b-5770176fee3e/
Malware family:
Amadey
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/49b75ffaa9e8/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/49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb

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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Stealc

Executable exe 49b75ffaa9e81188cd1cb9d09ec7e43912bf8dbf4c85e3e1ee061e18e7d89efb

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
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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