MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5
SHA3-384 hash: 36f690427c1121e055c92c5075e22a01a01af5ff77512071c1e3f82d5b28c2f5b83cdd7ffe4d821834ed03c9308e40e9
SHA1 hash: 9a19741b0778e0329358e8900eea28bfacadc233
MD5 hash: a10c9e9156eeb23374481f0edfa28ea8
humanhash: winter-oklahoma-hamper-helium
File name:file
Download: download sample
Signature LummaStealer
Create hunting rule
File size:205'352 bytes
First seen:2024-08-19 14:51:55 UTC
Last seen:2024-08-19 15:50:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:NPRoEqk7T3xZYd1G+zEoJjNnAFD9wuuZmN5kVOLBNzWHt5oPDJk2SGF+/iMlrKYp:bxXQ1xJZnAFD/imThNiN5oPDlF+K2EO
TLSH T10A14121497920A54FDE99332B5A808365FF177C3BE42D1FBA01E94203B177B9098B7DA
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter Bitsight
Tags:exe LummaStealer


Avatar
Bitsight
url: http://147.45.44.104/prog/66bddfcb52736_vidar.exe#space

Intelligence

File Origin
# of uploads :
2
# of downloads :
362
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2024-08-19 14:57:31 UTC
Tags:
stealer stealc loader lumma vidar
Link:
https://app.any.run/tasks/00216278-6bc9-4a11-9506-78136dcd786b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.2063.14686.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66c35c1de7ff3f5a063b8d04
Tags:
Encryption Static Msil
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66c35c1d1136ce49231005a0/reports/63854952-5089-4741-89d5-f98798ce1bbd/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5
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:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0d4cb9e5-4343-4d33-bbbf-ced5d58a1cc6
Result
Threat name:
LummaC, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1495054
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected Powershell download and execute
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1495054 Sample: file.exe Startdate: 19/08/2024 Architecture: WINDOWS Score: 100 45 weiggheticulop.shop 2->45 47 tenntysjuxmz.shop 2->47 49 9 other IPs or domains 2->49 73 Suricata IDS alerts for network traffic 2->73 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 9 other signatures 2->79 9 file.exe 1 2->9         started        signatures3 process4 file5 35 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 9->35 dropped 81 Contains functionality to inject code into remote processes 9->81 83 Writes to foreign memory regions 9->83 85 Allocates memory in foreign processes 9->85 87 Injects a PE file into a foreign processes 9->87 13 RegAsm.exe 1 43 9->13         started        signatures6 process7 dnsIp8 57 195.201.118.191, 443, 49711, 49712 HETZNER-ASDE Germany 13->57 59 steamcommunity.com 23.197.127.21, 443, 49710, 60226 AKAMAI-ASN1EU United States 13->59 61 147.45.44.104, 49737, 80 FREE-NET-ASFREEnetEU Russian Federation 13->61 37 C:\Users\user\...\66bfee9fd7d9a_lumma[1].exe, PE32 13->37 dropped 39 C:\Users\user\...\66bddfcb52736_vidar[1].exe, PE32 13->39 dropped 41 C:\ProgramData\softokn3.dll, PE32 13->41 dropped 43 7 other files (5 malicious) 13->43 dropped 91 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->91 93 Found many strings related to Crypto-Wallets (likely being stolen) 13->93 95 Tries to harvest and steal ftp login credentials 13->95 97 4 other signatures 13->97 18 HCAFIJDGHC.exe 1 13->18         started        21 BGCBGCAFII.exe 1 13->21         started        23 cmd.exe 1 13->23         started        file9 signatures10 process11 signatures12 63 Machine Learning detection for dropped file 18->63 65 Writes to foreign memory regions 18->65 67 Allocates memory in foreign processes 18->67 69 LummaC encrypted strings found 18->69 25 RegAsm.exe 18->25         started        71 Injects a PE file into a foreign processes 21->71 28 RegAsm.exe 18 21->28         started        31 conhost.exe 23->31         started        33 timeout.exe 1 23->33         started        process13 dnsIp14 51 interactiedovspm.shop 104.21.42.119, 443, 49744 CLOUDFLARENETUS United States 25->51 53 charecteristicdxp.shop 104.21.84.50, 443, 49745 CLOUDFLARENETUS United States 25->53 55 4 other IPs or domains 25->55 89 Tries to harvest and steal browser information (history, passwords, etc) 28->89 signatures15
Score:
88%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5/
Threat name:
Win32.Trojan.StealC
Create hunting rule
Status:
Malicious
First seen:
2024-08-19 14:52:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x4vebjlridex7hvc6wd72ipqyhpuxircelut3ou3yp63obmtpwsq._file
Verdict:
malicious
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:vidar credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240819-r8q45atfjk/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Lumma Stealer, LummaC
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk
https://cagedwifedsozm.shop/api
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/dc5067b8-1c68-45fc-805b-e82bcecd0959
Unpacked files
SH256 hash:
41824ef49f8ef5aca86a34961af88ee3975401f3af3cb3aeb16593047e51b4dc
MD5 hash:
5d370536e1897e57c26f0fc751848cfb
SHA1 hash:
9b1f9d2726a39763b959776dc400f6bc9f957b33
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/fefb4a00-2569-421b-ae24-e16fcdf44dcd/
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/fefb4a00-2569-421b-ae24-e16fcdf44dcd/
SH256 hash:
bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5
MD5 hash:
a10c9e9156eeb23374481f0edfa28ea8
SHA1 hash:
9a19741b0778e0329358e8900eea28bfacadc233
Link:
https://www.unpac.me/results/fefb4a00-2569-421b-ae24-e16fcdf44dcd/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf2a40a57140/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

LummaStealer

Executable exe bf2a40a57140c97f9ea2f587fd21f0c1df4ba22222e93dba9bc3fdb705937da5

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3114130/
  
URLhaus
https://urlhaus.abuse.ch/url/3114092/

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

Comments