MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a. 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


Vidar


Vendor detections: 18


Intelligence 18 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
SHA3-384 hash: ecb1b56ee45a9bdb8794b2e6638cbc710385741e26044637d852a2883e4df652c550e94ab28b5ba77b33a25c3f8107e6
SHA1 hash: 68f1fbe839f2d41f434bdde176ccc3e6f38ec503
MD5 hash: 4f828f95c11479c61692052d9254022a
humanhash: illinois-diet-uranus-oxygen
File name:4f828f95c11479c61692052d9254022a.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:413'736 bytes
First seen:2024-10-01 05:16:33 UTC
Last seen:2024-10-01 12:22:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'453 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:V/Cb1GLhpCd9pwh7vCOT1VVx3nH8fwxa/bEO:VD6MPTHVRPxqt
Threatray 2 similar samples on MalwareBazaar
TLSH T1419423459D9D1A51E8E6C577F0A2D5278E377AEFB692C1AE683B04C3C78A1413AF43C0
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)
Magika pebin
Reporter abuse_ch
Tags:exe vidar

Intelligence

File Origin
# of uploads :
3
# of downloads :
370
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
4f828f95c11479c61692052d9254022a.exe
Verdict:
Malicious activity
Analysis date:
2024-10-01 05:16:58 UTC
Tags:
vidar stealer loader lumma stealc
Link:
https://app.any.run/tasks/4192595d-9928-4306-8035-b4ea0b891167

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.4934.31346.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66fb85cf58399e4484e7a5d0
Tags:
Exploit Micro Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Creating a file in the %temp% directory
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Connection attempt to an infection source
Sending a TCP request to an infection source
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP POST request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed stealc
Link:
https://www.filescan.io/uploads/66fb85cf3aaac9834b81796f/reports/9fa31fa3-6b8d-4526-8d68-ed95aa84a07d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Gathering data
Result
Threat name:
LummaC, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1523131
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
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
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1523131 Sample: N83LFtMTUS.exe Startdate: 01/10/2024 Architecture: WINDOWS Score: 100 105 writekdmsnu.site 2->105 107 underlinemdsj.site 2->107 109 9 other IPs or domains 2->109 129 Multi AV Scanner detection for domain / URL 2->129 131 Suricata IDS alerts for network traffic 2->131 133 Found malware configuration 2->133 135 17 other signatures 2->135 12 N83LFtMTUS.exe 2 2->12         started        signatures3 process4 file5 91 C:\Users\user\AppData\...9183LFtMTUS.exe.log, CSV 12->91 dropped 159 Contains functionality to inject code into remote processes 12->159 161 Writes to foreign memory regions 12->161 163 Allocates memory in foreign processes 12->163 165 Injects a PE file into a foreign processes 12->165 16 RegAsm.exe 1 191 12->16         started        21 conhost.exe 12->21         started        signatures6 process7 dnsIp8 93 cowod.hopto.org 45.132.206.251, 49754, 80 LIFELINK-ASRU Russian Federation 16->93 95 49.12.197.9, 443, 49720, 49722 HETZNER-ASDE Germany 16->95 97 2 other IPs or domains 16->97 75 C:\Users\...\66fb287b4e6d5_vdfsgfd[1].exe, PE32 16->75 dropped 77 C:\Users\...\66fb253552d8d_sdhgdfsd[1].exe, PE32 16->77 dropped 79 C:\Users\user\...\66fb252026ae7_lfnd[1].exe, PE32 16->79 dropped 81 9 other files (7 malicious) 16->81 dropped 111 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->111 113 Found many strings related to Crypto-Wallets (likely being stolen) 16->113 115 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 16->115 117 3 other signatures 16->117 23 KKEHDBAEGI.exe 16->23         started        26 AKJDAEGCAF.exe 2 16->26         started        28 EBAFHCBFHD.exe 2 16->28         started        30 cmd.exe 16->30         started        file9 signatures10 process11 signatures12 137 Multi AV Scanner detection for dropped file 23->137 139 Machine Learning detection for dropped file 23->139 141 Writes to foreign memory regions 23->141 32 RegAsm.exe 23->32         started        37 conhost.exe 23->37         started        39 RegAsm.exe 23->39         started        143 Allocates memory in foreign processes 26->143 145 Injects a PE file into a foreign processes 26->145 147 LummaC encrypted strings found 26->147 41 RegAsm.exe 26->41         started        43 conhost.exe 26->43         started        45 RegAsm.exe 137 28->45         started        47 conhost.exe 28->47         started        49 conhost.exe 30->49         started        51 timeout.exe 30->51         started        process13 dnsIp14 99 46.8.231.109, 49752, 49755, 49757 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 32->99 83 C:\Users\user\AppData\...\mozglue[1].dll, PE32 32->83 dropped 85 C:\Users\user\AppData\...\freebl3[1].dll, PE32 32->85 dropped 87 C:\Users\user\AppData\...\softokn3[1].dll, PE32 32->87 dropped 89 7 other files (5 malicious) 32->89 dropped 119 Tries to steal Mail credentials (via file / registry access) 32->119 121 Found many strings related to Crypto-Wallets (likely being stolen) 32->121 123 Tries to harvest and steal ftp login credentials 32->123 125 3 other signatures 32->125 53 cmd.exe 32->53         started        55 cmd.exe 32->55         started        101 underlinemdsj.site 104.21.1.169, 443, 49747, 49760 CLOUDFLARENETUS United States 41->101 103 offeviablwke.site 104.21.84.213, 443, 49750 CLOUDFLARENETUS United States 41->103 file15 signatures16 process17 process18 57 userCFIEGDAEHI.exe 53->57         started        60 conhost.exe 53->60         started        62 userIECBGIDAEH.exe 55->62         started        64 conhost.exe 55->64         started        signatures19 149 Multi AV Scanner detection for dropped file 57->149 151 Machine Learning detection for dropped file 57->151 153 Writes to foreign memory regions 57->153 66 RegAsm.exe 57->66         started        69 conhost.exe 57->69         started        155 Allocates memory in foreign processes 62->155 157 Injects a PE file into a foreign processes 62->157 71 conhost.exe 62->71         started        73 RegAsm.exe 62->73         started        process20 signatures21 127 Tries to harvest and steal browser information (history, passwords, etc) 66->127
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-10-01 00:16:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=adbztepjtfgzj5h4mv7xa4wh4qjxxl22uj4wdt2ukhnpnm6nu5na._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Similar samples:
dd2e52949ee517d8a0079b3847a9911abef05e2d6dfcc1bbae49ad5495de9a01
Vidar
error
Vidar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:lumma family:stealc family:vidar botnet:8b4d47586874b08947203f03e4db3962 botnet:default credential_access discovery spyware stealer
Link:
https://tria.ge/reports/241001-fypmrswfpa/
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
Detect Vidar Stealer
Lumma Stealer, LummaC
Stealc
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
http://46.8.231.109
https://underlinemdsj.site/api
https://offeviablwke.site/api
Verdict:
Malicious
Tags:
stealc vidar stealc
YARA:
n/a
Link:
https://app.threat.zone/submission/fa0af420-c05b-4460-8eb1-a4d86835bfd6
Unpacked files
SH256 hash:
69fd22a652c78662a89782508c6ca0d11ea0515fa05084a8d23a638f7c2155a3
MD5 hash:
1ca0d292b435517307d7af0e45424036
SHA1 hash:
c4050120d738267766f9042de028c2463db0ed4a
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/90e3ef45-7643-49b6-a965-a968bdf447e4/
Parent samples :
00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
836ce1411f26919f8fb95548d03c2f4dfd658fc525dfe21c7be8ed65f81a5957
SH256 hash:
0a6b558dc092b4f6bce802a6407fe468f7b973c82db36e2d7a0d0db5635838b4
MD5 hash:
1fbd01ee768b7c4abfd2783a4707a072
SHA1 hash:
15288415ec755c2673da3c716386abfdd35aaaed
Link:
https://www.unpac.me/results/90e3ef45-7643-49b6-a965-a968bdf447e4/
SH256 hash:
00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
MD5 hash:
4f828f95c11479c61692052d9254022a
SHA1 hash:
68f1fbe839f2d41f434bdde176ccc3e6f38ec503
Link:
https://www.unpac.me/results/90e3ef45-7643-49b6-a965-a968bdf447e4/
Malware family:
Lumma
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/00c39991e999/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
vidar
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a

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

Vidar

Executable exe 00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3203140/
  
Delivery method
Distributed via web download

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