MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca. 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: 18

Intelligence 18 IOCs YARA 5 File information Comments

SHA256 hash:	f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca
SHA3-384 hash:	486ca52163545c45d93b3a7456e2764efefb6f404f35a02cc73e8b08ad93af4c1d351a5a9b5492bf2a7d5c76a5d8bdcb
SHA1 hash:	2a919e2a2cd02b7b433432602f5d74034fbaffc4
MD5 hash:	d1137063cca03f3d3079c8c4db839b95
humanhash:	apart-ink-juliet-monkey
File name:	d1137063cca03f3d3079c8c4db839b95.exe
Download:	download sample
Signature	LummaStealer Create hunting rule
File size:	296'448 bytes
First seen:	2024-12-23 05:52:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	aa45dd407879e6b8355707382a3243fe (2 x LummaStealer)
ssdeep	3072:hBcrUsnHvSGL0cSky2MZmDNpPbSrY4mtjgGrcQTbQNWvuIh+89FfS8JVYb553f3W:45HvSGLfzQmDXF4mumQ2r1JVyv
TLSH	T1A054F11179A3C872C48BD5309560C7B1AF6B783267B5998B73981B7E5F302C3A73A709
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	0c18120a20401000 (1 x LummaStealer)
Reporter	abuse_ch
Tags:	exe LummaStealer

Intelligence

File Origin

# of uploads :

# of downloads :

379

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

d1137063cca03f3d3079c8c4db839b95.exe

Verdict:

Malicious activity

Analysis date:

2024-12-23 06:02:36 UTC

Tags:

lumma stealer loader

Link:

https://app.any.run/tasks/2f46f08f-4ddd-43da-b91b-616f342e160b

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6768fac08a4d48ee35fe5d06

Tags:

malware

Result

Verdict:

Malware

Maliciousness:

Behaviour

Behavior that indicates a threat

DNS request

Connection attempt

Sending a custom TCP request

Connection attempt to an infection source

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Query of malicious DNS domain

Sending a TCP request to an infection source

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint lumma microsoft_visual_cc packed packed packer_detected

Link:

https://www.filescan.io/uploads/6768fac3103c07c163773e15/reports/d218f6b3-d328-4fac-8461-5f36db964027/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca

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

Link:

https://analyze.intezer.com/analyses/12a959fa-45f2-407d-a75a-64c3778ef3fd

Result

Threat name:

LummaC

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1579648

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found malware configuration

LummaC encrypted strings found

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Suricata IDS alerts for network traffic

Yara detected LummaC Stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca/

Threat name:

Win32.Trojan.LummaC

Status:

Malicious

First seen:

2024-12-22 06:07:32 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

27 of 38 (71.05%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=7ekddoynpfygllliapcvebm4vwnx2o43y2k6fgy6mzufan3jixfa._file

Verdict:

malicious

Label(s):

lummastealer

Similar samples:

error

LummaStealer

Result

Malware family:

lumma

Score:

10/10

Tags:

family:lumma discovery stealer

Link:

https://tria.ge/reports/241223-gla5aawqcy/

Behaviour

Program crash

System Location Discovery: System Language Discovery

Lumma Stealer, LummaC

Lumma family

Verdict:

Malicious

Tags:

Win.Packer.pkr_ce1a-9980177-0

YARA:

n/a

Link:

https://app.threat.zone/submission/58324efc-17d7-49dc-98fc-b748a5237167

Unpacked files

SH256 hash:

26fc293290e0cf8a97f2dca5423d1501b99bb2c7acf1a7e381b6daf6896870a1

MD5 hash:

1850211868c3e2971fe1e5ca6c3171ed

SHA1 hash:

1e06a9e0d79ead843ecd11239c93e9f3da30eddb

Detections:

LummaStealer

Link:

https://www.unpac.me/results/a8ee38b6-4f8f-4dc0-98a3-20c36a61354f/

SH256 hash:

f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca

MD5 hash:

d1137063cca03f3d3079c8c4db839b95

SHA1 hash:

2a919e2a2cd02b7b433432602f5d74034fbaffc4

Link:

https://www.unpac.me/results/a8ee38b6-4f8f-4dc0-98a3-20c36a61354f/

Malware family:

Lumma

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f91431bb0d79/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/f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca

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:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	RansomPyShield_Antiransomware Create hunting rule
Author:	XiAnzheng
Description:	Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)

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

exe f91431bb0d797065ad6803c552059cad9b7d3b9bc695e29b1e666850376945ca

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/3224579/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3346066/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindNextVolumeMountPointW KERNEL32.dll::FindNextVolumeA KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoA KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleInputW KERNEL32.dll::WriteConsoleA KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleInputW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleAliasExesLengthA KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateFileA KERNEL32.dll::GetWindowsDirectoryA
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameW

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