MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756. 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 22 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756
SHA3-384 hash: 7db2a346b6742968f42dc16237d66011af8461dc7a6fe09518d5cc29adfbb06068dec2eaf8ef86b1b85d5f25510998d6
SHA1 hash: 3918051ba89f9a1a0c3116029ca554cbf80a1281
MD5 hash: 608321f2d1044c6c22eeb66205e53650
humanhash: alaska-early-september-papa
File name:file
Download: download sample
Signature LummaStealer
Create hunting rule
File size:5'886'464 bytes
First seen:2024-06-25 05:05:10 UTC
Last seen:2024-06-25 08:49:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5929190c8765f5bc37b052ab5c6c53e7 (74 x LummaStealer, 14 x RedLineStealer, 8 x Stealc)
ssdeep 49152:YzmL+zbXEoqq1OQmf/csUgUk0WgwH20j9e7Esrp4AjE5EjwMh49cA0fAVXr15Tdy:YmLEbMIqPH20RvEW3TY
TLSH T1FC567B47FC9185E9C0A9D630896A9262BB317C484B3123D72B60F7383F76BD4AEB5744
TrID 41.1% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
26.1% (.EXE) Win64 Executable (generic) (10523/12/4)
12.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.1% (.ICL) Windows Icons Library (generic) (2059/9)
5.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 69ccd4d49696cc71 (13 x Adware.Adload, 8 x CoinMiner, 7 x ValleyRAT)
Reporter Bitsight
Tags:exe LummaStealer


Avatar
Bitsight
url: https://vk.com/doc851967680_678258971?hash=SCFGbgoD6UPsEGsE2LLhALYLJSGUzGiEKWgCbfMBgez&dl=509bLEpw7iFZ6gtn5Xr7CHH5G04xxoVC0FTNdobMs0L&api=1&no_preview=1#task

Intelligence

File Origin
# of uploads :
3
# of downloads :
340
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756.exe
Verdict:
Malicious activity
Analysis date:
2024-06-25 05:10:22 UTC
Tags:
lumma stealer
Link:
https://app.any.run/tasks/91b2a73d-bc16-4db4-94de-bd7e2ba50ad5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win64.Malware-gen.6791.25688.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667a503dff0cdfb06de5f752win7simulatehigh_evasion
Tags:
Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Launching a process
DNS request
Connection attempt
Sending a custom TCP request
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
90%
Tags:
anti-debug golang mingw
Link:
https://www.filescan.io/uploads/667a503e6b8dba248b452a57/reports/7d6b30e8-bef6-4938-91dc-e03d4c7ddca5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756
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:
Unknown
Link:
https://analyze.intezer.com/analyses/d7567bfe-8c20-4023-a03a-900d7621199b
Result
Threat name:
LummaC
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462146
Signature
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
LummaC encrypted strings found
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)
Sample uses string decryption to hide its real strings
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected LummaC Stealer
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756/
Threat name:
Win64.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-06-25 00:00:18 UTC
File Type:
PE+ (Exe)
Extracted files:
19
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=56umn3gyrj6ead7qwkhmpzosauuugvdpjra5yqodoaw4opu5a5la._file
Verdict:
unknown
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/240625-frffhsvfqr/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756
MD5 hash:
608321f2d1044c6c22eeb66205e53650
SHA1 hash:
3918051ba89f9a1a0c3116029ca554cbf80a1281
Detections:
TrueCrypt_crypter
Create hunting rule
Link:
https://www.unpac.me/results/5b2f3fc6-c714-4119-b303-86448af47879/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/efa8c6ecd88a/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/efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756

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
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:command_and_control
Create hunting rule
Author:CD_R0M_
Description:This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group
Rule name:crime_win32_ransom_avaddon_1
Create hunting rule
Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__ConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:GoBinTest
Create hunting rule
Rule name:golang
Create hunting rule
Rule name:Golangmalware
Create hunting rule
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Create hunting rule
Description:Golang strings present
Rule name:golang_duffcopy_amd64
Create hunting rule
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Create hunting rule
Author:Eric Yocam
Description:find Golang malware
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:ThreadControl__Context
Create hunting rule
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 efa8c6ecd88a7c400ff0b28ec7e5d2052943546f4c41dc41c3702dc73e9d0756

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2905575/
  
URLhaus
https://urlhaus.abuse.ch/url/2901841/

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::OpenProcess
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::GetSystemDirectoryA

Comments