MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390
SHA3-384 hash: 17f495f9da82e9e60da1b991f9fed875877d23874bd3dab3f308dc2e4f5cb214ac0d4d5ad8b7e4b8423f488296c0cb70
SHA1 hash: 2000c94f296473baa42444ea0fbd607a0f5cd19a
MD5 hash: bb2f1d74aabd9d2a6eb16dd3cde55e5e
humanhash: ten-saturn-hydrogen-nitrogen
File name:bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe
Download: download sample
Signature Stealc
Create hunting rule
File size:1'836'032 bytes
First seen:2024-12-17 08:44:13 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 49152:7K/2FxcdjKcueMKUPCEIWadlDHzzq1O0oEprRWh7uC:7Kkc8ypdlDHKHoOWh7u
TLSH T1578533254EC3D17ACACFC4328EDBE8F561B6A111ADE61F9532852E037017EAC64523F9
TrID 42.7% (.EXE) Win32 Executable (generic) (4504/4/1)
19.2% (.EXE) OS/2 Executable (generic) (2029/13)
19.0% (.EXE) Generic Win/DOS Executable (2002/3)
18.9% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe Stealc

Intelligence

File Origin
# of uploads :
1
# of downloads :
435
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe
Verdict:
Malicious activity
Analysis date:
2024-12-17 08:49:10 UTC
Tags:
lumma stealer themida loader stealc
Link:
https://app.any.run/tasks/78e9a24a-9f3d-4903-b568-44e629469750

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.18123.29039.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67613b058fb73f13afd0426b
Tags:
vmdetect stealer virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Connection attempt to an infection source
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Query of malicious DNS domain
Sending a TCP request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm packed packed packer_detected xpack
Link:
https://www.filescan.io/uploads/67613a14336b67ce9a2ff05d/reports/eacbbf7c-42d0-474c-9ba7-7f0b0bde1b0c/overview
Verdict:
Malicious
Labled as:
Jaik.Generic
Link:
https://www.hybrid-analysis.com/sample/21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390
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/cef7bbc7-ed3c-409c-93ef-01b59bdd7e2a
Result
Threat name:
LummaC, Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1576613
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Disable Windows Defender notifications (registry)
Disable Windows Defender real time protection (registry)
Disables Windows Defender Tamper protection
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 dropped file
Machine Learning detection for sample
Modifies windows update settings
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
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 browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1576613 Sample: jYd7FUgGZc.exe Startdate: 17/12/2024 Architecture: WINDOWS Score: 100 22 tacitglibbr.biz 2->22 30 Multi AV Scanner detection for domain / URL 2->30 32 Suricata IDS alerts for network traffic 2->32 34 Found malware configuration 2->34 36 11 other signatures 2->36 7 jYd7FUgGZc.exe 2 2->7         started        signatures3 process4 dnsIp5 24 185.215.113.16, 49752, 80 WHOLESALECONNECTIONSNL Portugal 7->24 26 tacitglibbr.biz 188.114.96.6, 443, 49699, 49700 CLOUDFLARENETUS European Union 7->26 18 C:\Users\user\...\JI1XME003OC9O5S8X2QF4.exe, PE32 7->18 dropped 20 C:\Users\...\8P99AMTZO7HJA6VUEZKTJYJ0ZELS.exe, PE32 7->20 dropped 38 Query firmware table information (likely to detect VMs) 7->38 40 Found many strings related to Crypto-Wallets (likely being stolen) 7->40 42 Tries to harvest and steal ftp login credentials 7->42 44 8 other signatures 7->44 12 JI1XME003OC9O5S8X2QF4.exe 9 1 7->12         started        15 8P99AMTZO7HJA6VUEZKTJYJ0ZELS.exe 13 7->15         started        file6 signatures7 process8 dnsIp9 46 Antivirus detection for dropped file 12->46 48 Detected unpacking (changes PE section rights) 12->48 50 Machine Learning detection for dropped file 12->50 58 7 other signatures 12->58 28 185.215.113.206, 49788, 80 WHOLESALECONNECTIONSNL Portugal 15->28 52 Tries to detect sandboxes and other dynamic analysis tools (window names) 15->52 54 Tries to evade debugger and weak emulator (self modifying code) 15->54 56 Hides threads from debuggers 15->56 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-12-16 22:06:32 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehb763iu3p3zfci6bqynuhvvdktfy34hyzonqmb6ldwsngk2moia._file
Verdict:
malicious
Label(s):
lummastealer
Create hunting rule
Similar samples:
error
Stealc
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc botnet:stok discovery evasion spyware stealer trojan
Link:
https://tria.ge/reports/241217-knrrlavqd1/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks BIOS information in registry
Executes dropped EXE
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Windows security modification
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Lumma Stealer, LummaC
Lumma family
Modifies Windows Defender Real-time Protection settings
Stealc
Stealc family
Malware Config
C2 Extraction:
https://sordid-snaked.cyou/api
https://awake-weaves.cyou/api
https://wrathful-jammy.cyou/api
https://debonairnukk.xyz/api
https://diffuculttan.xyz/api
https://effecterectz.xyz/api
https://deafeninggeh.biz/api
https://immureprech.biz/api
https://tacitglibbr.biz/api
http://185.215.113.206
Verdict:
Suspicious
Tags:
stealer lumma c2 lumma_stealer
YARA:
n/a
Link:
https://app.threat.zone/submission/e470e4a6-c193-4b20-9cba-bbd3f0461caa
Unpacked files
SH256 hash:
857a18ead41597569fadff4f1ef411a3fda75c663bbc33f2a98903ccb66165c5
MD5 hash:
a85d8577bef51bb0c59c69949f9e0ba5
SHA1 hash:
d51bd7050483dc48fc399ef6a8c45f3f5f1402e5
Link:
https://www.unpac.me/results/fcc974a1-7556-438e-a37b-74e72aab812b/
SH256 hash:
21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390
MD5 hash:
bb2f1d74aabd9d2a6eb16dd3cde55e5e
SHA1 hash:
2000c94f296473baa42444ea0fbd607a0f5cd19a
Link:
https://www.unpac.me/results/fcc974a1-7556-438e-a37b-74e72aab812b/
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)
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 21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3337943/
  
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

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