MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d. 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


LummaStealer


Vendor detections: 15


Intelligence 15 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
SHA3-384 hash: 5269429e89c80bc7e770a5259f244eabd7d667960d1ecf285ff51fc48af2ac1e7bd4e0cd760f5e00a363bc4a21bf2a2a
SHA1 hash: 3fac13a3e2416853ce16ed6052ba91e4ec978c86
MD5 hash: 81cfbdcd567c50d28a6380910dd6cf83
humanhash: indigo-louisiana-video-hot
File name:81cfbdcd567c50d28a6380910dd6cf83.exe
Download: download sample
Signature LummaStealer
Create hunting rule
File size:1'821'184 bytes
First seen:2024-12-19 07:19:09 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:vW/ovhCX0Gq//UWbO9501vl/YeUcWw30U9/hYjF:GsUOGtePWw30q6F
TLSH T1778533FB1C2A970FE8FC60B525CAB5DA0BF86A62102152C13B7B7CF1199513E69C7D84
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 LummaStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
400
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
81cfbdcd567c50d28a6380910dd6cf83.exe
Verdict:
Malicious activity
Analysis date:
2024-12-19 07:23:48 UTC
Tags:
lumma stealer themida loader stealc
Link:
https://app.any.run/tasks/57eb63f6-c705-4a81-b209-a9a2ef3a4354

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.Evo-gen.28155.12078.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
95.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6763c928653a8698dfdade40
Tags:
virus spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
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:
packed packed packer_detected
Link:
https://www.filescan.io/uploads/6763c92521bbe1761ca6984b/reports/0fff0406-b4a8-459b-bd3e-044e6f521ae7/overview
Verdict:
Malicious
Labled as:
Symmi.Generic
Link:
https://www.hybrid-analysis.com/sample/55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
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/046946f7-b6d9-4211-8ecf-138ff736715f
Result
Threat name:
LummaC, Stealc
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1578084
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 submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
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: 1578084 Sample: MFQbv2Yuzv.exe Startdate: 19/12/2024 Architecture: WINDOWS Score: 100 22 sweepyribs.lat 2->22 24 grannyejh.lat 2->24 32 Suricata IDS alerts for network traffic 2->32 34 Found malware configuration 2->34 36 Antivirus detection for URL or domain 2->36 38 10 other signatures 2->38 7 MFQbv2Yuzv.exe 2 2->7         started        signatures3 process4 dnsIp5 26 185.215.113.16, 49764, 80 WHOLESALECONNECTIONSNL Portugal 7->26 28 grannyejh.lat 104.21.64.80, 443, 49708, 49710 CLOUDFLARENETUS United States 7->28 18 C:\...\D9YNQHDH87LD7ZJ622XZKADJTLQDPY.exe, PE32 7->18 dropped 20 C:\Users\user\...\58AOE6AB3YG1SX0XN83.exe, PE32 7->20 dropped 40 Query firmware table information (likely to detect VMs) 7->40 42 Tries to harvest and steal ftp login credentials 7->42 44 Tries to harvest and steal browser information (history, passwords, etc) 7->44 46 7 other signatures 7->46 12 D9YNQHDH87LD7ZJ622XZKADJTLQDPY.exe 9 1 7->12         started        15 58AOE6AB3YG1SX0XN83.exe 13 7->15         started        file6 signatures7 process8 dnsIp9 48 Antivirus detection for dropped file 12->48 50 Detected unpacking (changes PE section rights) 12->50 52 Machine Learning detection for dropped file 12->52 60 7 other signatures 12->60 30 185.215.113.206, 49799, 80 WHOLESALECONNECTIONSNL Portugal 15->30 54 Tries to detect sandboxes and other dynamic analysis tools (window names) 15->54 56 Tries to evade debugger and weak emulator (self modifying code) 15->56 58 Hides threads from debuggers 15->58 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-12-19 07:20:05 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kxft5ajlqvc24cacpqelypmnb76i43gsqvcupjmcvm6e4lnyruoq._file
Verdict:
malicious
Label(s):
lummastealer
Create hunting rule
Similar samples:
error
LummaStealer
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/241219-h54rdavjft/
Behaviour
Modifies system certificate store
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:
http://185.215.113.206
Verdict:
Suspicious
Tags:
stealer lumma_stealer lumma c2
YARA:
n/a
Link:
https://app.threat.zone/submission/04d5748b-2208-4e69-ad64-ef6327a4a7d0
Unpacked files
SH256 hash:
11f6a5aacf89f55d1ce6a0985f2b80816ca383acdd534a99dc936cf338ba6a07
MD5 hash:
106bc62a138e435b9d32c4fff735c330
SHA1 hash:
2db59ce02b7eef3241f13ea531e06e338f4dd0d5
Link:
https://www.unpac.me/results/c6060522-a820-4817-9bd2-db0c84335891/
SH256 hash:
55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d
MD5 hash:
81cfbdcd567c50d28a6380910dd6cf83
SHA1 hash:
3fac13a3e2416853ce16ed6052ba91e4ec978c86
Link:
https://www.unpac.me/results/c6060522-a820-4817-9bd2-db0c84335891/
Malware family:
Lumma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/55cb3e812b85/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

LummaStealer

Executable exe 55cb3e812b8545ae08027c08bc3d8d0ffc8e6cd2854547a582ab3c4e2db88d1d

(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

Comments