MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35. 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 YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35
SHA3-384 hash: 613e868152be8206ab1de5acb36d6092403832c753cdfd970215b7d17e99f962049b13ea4ea44764699a74d6808b78e2
SHA1 hash: bbc226de21fb0811bc5efe474d5a20231379f6cc
MD5 hash: 7fd1b88d3618d5ba66748524407b39ca
humanhash: two-black-winter-texas
File name:file
Download: download sample
Signature Stealc
Create hunting rule
File size:2'133'504 bytes
First seen:2024-10-31 01:07:06 UTC
Last seen:2024-10-31 01:13:23 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 49152:h1+qg44LJEqJp6n8a0zZ+RgdSeiZbXFERHZv4CPVoKp54wkR:X+k4LJnJpMzsVQ9bVA5QCPFpmw
Threatray 1 similar samples on MalwareBazaar
TLSH T14DA533D9A703E018F12B3335E8A8CF628795AF455C27BF710E43B535CA4CA61A6B1379
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 :
21
# of downloads :
733
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-10-31 01:09:12 UTC
Tags:
lumma stealer loader amadey botnet stealc themida
Link:
https://app.any.run/tasks/37b273ed-79e5-4018-854e-a4e7eb017854

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.BackdoorX-gen.13191.16458.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6722d87749e92a05dde1f7b2
Tags:
exploit small spam hype
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Creating a file
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/6722d872e9959538ff3bcb64/reports/79f13e03-c4eb-49cd-b062-06a0e0a10454/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35
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:
Unknown
Link:
https://analyze.intezer.com/analyses/5302a269-d521-49a2-92d5-9bc36bfde071
Result
Threat name:
Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1545800
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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
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 browser information (history, passwords, etc)
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1545800 Sample: file.exe Startdate: 31/10/2024 Architecture: WINDOWS Score: 100 42 chrome.cloudflare-dns.com 2->42 64 Suricata IDS alerts for network traffic 2->64 66 Antivirus / Scanner detection for submitted sample 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 5 other signatures 2->70 8 file.exe 32 2->8         started        13 msedge.exe 105 641 2->13         started        signatures3 process4 dnsIp5 54 185.215.113.206, 65171, 65246, 65380 WHOLESALECONNECTIONSNL Portugal 8->54 56 127.0.0.1 unknown unknown 8->56 34 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 8->34 dropped 36 C:\Users\user\AppData\...\softokn3[1].dll, PE32 8->36 dropped 38 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 8->38 dropped 40 10 other files (none is malicious) 8->40 dropped 72 Tries to detect sandboxes and other dynamic analysis tools (window names) 8->72 74 Tries to harvest and steal browser information (history, passwords, etc) 8->74 76 Tries to evade debugger and weak emulator (self modifying code) 8->76 80 4 other signatures 8->80 15 msedge.exe 2 10 8->15         started        18 chrome.exe 8->18         started        78 Maps a DLL or memory area into another process 13->78 21 msedge.exe 13->21         started        23 msedge.exe 13->23         started        25 msedge.exe 13->25         started        27 4 other processes 13->27 file6 signatures7 process8 dnsIp9 82 Monitors registry run keys for changes 15->82 29 msedge.exe 15->29         started        44 192.168.2.6, 443, 49152, 49153 unknown unknown 18->44 46 239.255.255.250 unknown Reserved 18->46 31 chrome.exe 18->31         started        48 23.218.232.145 RAYA-ASEG United States 21->48 50 23.218.232.185, 443, 65493 RAYA-ASEG United States 21->50 52 28 other IPs or domains 21->52 signatures10 process11 dnsIp12 58 www.google.com 142.250.185.68, 443, 65177, 65185 GOOGLEUS United States 31->58 60 play.google.com 142.250.186.174, 443, 65227, 65247 GOOGLEUS United States 31->60 62 2 other IPs or domains 31->62
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35/
Threat name:
Win32.Trojan.Stealerc
Create hunting rule
Status:
Malicious
First seen:
2024-10-31 01:08:06 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qh3leuuicv6zg4pnavgdveignzxll2wk5st232uz53mado5wjm2q._file
Verdict:
suspicious
Label(s):
stealc
Create hunting rule
Similar samples:
81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35
Stealc
error
Stealc
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:tale discovery evasion stealer
Link:
https://tria.ge/reports/241031-bg8bbstrg1/
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/32bae16d-5499-46dd-baed-e8290ed753f9
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
Link:
https://www.unpac.me/results/4953fd23-d541-4513-847e-3a5e163c7cd4/
SH256 hash:
8a153094c0a37d01f550c1e37e0068d5f19ceacab7385ce15c714085e801d4c0
MD5 hash:
e3bb512b6641a0e74ebaa52b6c24d197
SHA1 hash:
326b218f6922c787d8cf7a4674889a5e50c5e410
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
detect_Mars_Stealer
Create hunting rule
Link:
https://www.unpac.me/results/4953fd23-d541-4513-847e-3a5e163c7cd4/
SH256 hash:
81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35
MD5 hash:
7fd1b88d3618d5ba66748524407b39ca
SHA1 hash:
bbc226de21fb0811bc5efe474d5a20231379f6cc
Link:
https://www.unpac.me/results/4953fd23-d541-4513-847e-3a5e163c7cd4/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81f6b2528815/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/81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35

File information

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

Web download

Stealc

Executable exe 81f6b25288157d9371ed054c3a91066e6eb5eacaeca7adea99eed801bbb64b35

(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

Comments