MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b99b1c631dbf1cb6e7f32dd148dd9a52c4128431af3d52144a051288e40dff68. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: b99b1c631dbf1cb6e7f32dd148dd9a52c4128431af3d52144a051288e40dff68
SHA3-384 hash: 30693b851a72a570b1150fcca9c925fef0b9d392416620187ef2f18497d106ac9c8192f5a5282102453af645cb4a3e3c
SHA1 hash: e144792794b972238c22c808af72fe94eb07f725
MD5 hash: 678ef91e7c6d2cb6e003a1b9e1aca2e1
humanhash: golf-quebec-quiet-papa
File name:678ef91e7c6d2cb6e003a1b9e1aca2e1.exe
Download: download sample
Signature LummaStealer
File size:502'272 bytes
First seen:2023-11-17 08:35:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3c071df9f91908eb18d041533a3c969c (2 x Smoke Loader, 2 x Stealc, 2 x LummaStealer)
ssdeep 12288:SfdszJwdDYfygTZVq26HJ02/hR2FvcUtvy7SlN9gKzyl:BjKg2HJtpcUU6S1gKzW
Threatray 138 similar samples on MalwareBazaar
TLSH T1BFB4CF43D2D1BC94E9618B7A8E1FCAE8721EF9508E1D37663219BF2F04B1173D262356
TrID 45.8% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.4% (.EXE) Win64 Executable (generic) (10523/12/4)
9.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.6% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0002012181632909 (1 x LummaStealer)
Reporter abuse_ch
Tags:exe LummaStealer


Avatar
abuse_ch
LummaStealer C2:
http://mouseblock.pw/api

Intelligence


File Origin
# of uploads :
1
# of downloads :
362
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware packed xpack
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.
Malware family:
LummaC2 Stealer
Verdict:
Malicious
Result
Threat name:
LummaC Stealer
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Contains functionality to behave differently if execute on a Russian/Kazak computer
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Spyware.Lummastealer
Status:
Malicious
First seen:
2023-11-16 09:07:37 UTC
File Type:
PE (Exe)
Extracted files:
59
AV detection:
21 of 24 (87.50%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
9dc208ebb8b3cb194b0c35857c694b302392eee5a06f737ffe8ea25ffa840503
MD5 hash:
7d4ab83ab38420284a3e8411329f1ea2
SHA1 hash:
af8cdfc0c0695fab96b129838f8e46420027d839
SH256 hash:
b99b1c631dbf1cb6e7f32dd148dd9a52c4128431af3d52144a051288e40dff68
MD5 hash:
678ef91e7c6d2cb6e003a1b9e1aca2e1
SHA1 hash:
e144792794b972238c22c808af72fe94eb07f725
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:BitcoinAddress
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


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

Web download

LummaStealer

Executable exe b99b1c631dbf1cb6e7f32dd148dd9a52c4128431af3d52144a051288e40dff68

(this sample)

  
Delivery method
Distributed via web download

Comments