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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805
SHA3-384 hash: 5bb3d19db1cc2569149f6781fc64aa480dc9ffd6bf30a758e1356ef8fb44a8e74105901dca490b52bd686eef3e6962d3
SHA1 hash: 032a1e57cee00a4de0374e04f2f95034e5da792e
MD5 hash: 4c202388e40af4a57e2384fc6e104861
humanhash: fillet-friend-vermont-indigo
File name:lumma2.dll
Download: download sample
Signature LummaStealer
Create hunting rule
File size:1'186'816 bytes
First seen:2025-01-14 13:17:01 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash dae02f32a21e03ce65412f6e56942daa (123 x YellowCockatoo, 62 x CobaltStrike, 44 x JanelaRAT)
ssdeep 24576:dwrhBcd875v9TBxXbcGfDGm4JHFdEk/a4CErprcsy:C37phgbJH5CQrJc
TLSH T15245D006B6F14FC2DB091F36E57BC11087E1A48226A3F39E5A50D2A77D536F2C852EB4
TrID 86.5% (.DLL) Generic .NET DLL/Assembly (236632/4/32)
3.8% (.EXE) Win64 Executable (generic) (10522/11/4)
2.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter threatcat_ch
Tags:dll lumma LummaStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
115
Origin country :
CH CH
Vendor Threat Intelligence
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=678663cf4487910100dee074
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cryptor_detected net_reactor obfuscated packed packed
Link:
https://www.filescan.io/uploads/678663d9f1b96fac3180ea3e/reports/fb4a6653-b31e-411e-8d31-ff722eb55891/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805
Gathering data
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1590710
Signature
AI detected suspicious sample
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1590710 Sample: lumma2.dll Startdate: 14/01/2025 Architecture: WINDOWS Score: 56 15 Multi AV Scanner detection for submitted file 2->15 17 Machine Learning detection for sample 2->17 19 AI detected suspicious sample 2->19 7 loaddll32.exe 1 2->7         started        process3 process4 9 cmd.exe 1 7->9         started        11 conhost.exe 7->11         started        process5 13 rundll32.exe 9->13         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-01-14 13:18:05 UTC
File Type:
PE (.Net Dll)
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zdx2l667sjwby4fj55rfaqbte4sju2v3wc2oezjazdmpquxtbacq._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250114-qjd8la1lap/
Unpacked files
SH256 hash:
c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805
MD5 hash:
4c202388e40af4a57e2384fc6e104861
SHA1 hash:
032a1e57cee00a4de0374e04f2f95034e5da792e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1a5ca934-5d0c-47a5-922d-7e86566b8882/
Parent samples :
c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805
db30f5d6ace75cc3f361542ef9296dfa9a9020c71943655838ee4d1ea12f8a64
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/c8efa5fbdf926c1c70a9ef6250403327249a6abbb0b4e26520c8d8f852f30805

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:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
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.

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

Comments