MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f
SHA3-384 hash: 3370e86ebb7ad87320d6c00c32daeb1781313e5b1ce404e0122515cdf94b2dd80a6e35d1955ba77536e3bd60f1d4ec53
SHA1 hash: 5bc1ceec4269b4e893f2b00c1c4b3c0cb42a3291
MD5 hash: 75db6dfdebb9bf0d98acfc15f2219c62
humanhash: west-item-stream-fix
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:372'224 bytes
First seen:2024-05-17 16:04:33 UTC
Last seen:2024-05-17 16:25:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e0b6966096a2c186c5f52fee6a381e0f (2 x Vidar, 1 x RedLineStealer)
ssdeep 6144:1JhLSp8zWMtAJA0Z9aRlEiw+pVc4Amr7me33k/JNSdiaJIlsZa6n:pLSpmqKRw+84B7mA3aJE4aOAFn
TLSH T1C384D050B0C08031D663253649E0EBB55E3EF9614F619E9F37A80EBF4F342D2DA61A5B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter Bitsight
Tags:exe vidar


Avatar
Bitsight
url: https://vk.com/doc5294803_669680143?hash=zIdRJ8RG4QcP06fIp4ttZ9jfjIidlztqAkpEA0cRT3L&dl=ggNPiIwBXTXCO6skIpKXiz7vMRRJKoFBspk6JpPzxvT&api=1&no_preview=1#mene

Intelligence

File Origin
# of uploads :
2
# of downloads :
379
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f.exe
Verdict:
Malicious activity
Analysis date:
2024-05-17 16:07:44 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/61154a49-f534-4f49-9e91-a4b119bd7b3d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.1482.9921.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed vidar
Link:
https://www.filescan.io/uploads/66478031bc04dffa921e0525/reports/563c1ad5-52d7-49e0-a53a-0cc6763d7e8f/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f
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:
Malicious
Link:
https://analyze.intezer.com/analyses/a2a99f5c-d831-4cb5-99b8-e534729802b0
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1443407
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Opens network shares
Searches for specific processes (likely to inject)
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
Writes to foreign memory regions
Yara detected AntiVM3
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: 1443407 Sample: file.exe Startdate: 17/05/2024 Architecture: WINDOWS Score: 100 33 steamcommunity.com 2->33 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 8 other signatures 2->45 9 file.exe 1 2->9         started        signatures3 process4 signatures5 47 Contains functionality to inject code into remote processes 9->47 49 Writes to foreign memory regions 9->49 51 Allocates memory in foreign processes 9->51 53 Injects a PE file into a foreign processes 9->53 12 RegAsm.exe 1 46 9->12         started        17 conhost.exe 9->17         started        process6 dnsIp7 35 steamcommunity.com 104.102.42.29, 443, 49704 AKAMAI-ASUS United States 12->35 37 95.217.240.101, 443, 49705, 49706 HETZNER-ASDE Germany 12->37 25 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 12->25 dropped 27 C:\Users\user\AppData\...\softokn3[1].dll, PE32 12->27 dropped 29 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 12->29 dropped 31 10 other files (none is malicious) 12->31 dropped 55 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->55 57 Found many strings related to Crypto-Wallets (likely being stolen) 12->57 59 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->59 61 6 other signatures 12->61 19 cmd.exe 1 12->19         started        file8 signatures9 process10 process11 21 conhost.exe 19->21         started        23 timeout.exe 1 19->23         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-05-17 16:05:08 UTC
File Type:
PE (Exe)
AV detection:
17 of 23 (73.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ul4usuwit2seb6bio43f3nnuuxhrjiioifukekus7tskr7myibhq._file
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:stealc family:vidar discovery spyware stealer
Link:
https://tria.ge/reports/240517-tjgv9sfd84/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect Vidar Stealer
Stealc
Vidar
Unpacked files
SH256 hash:
ab59931fb0325a31ac86e463f06c01cbb8a8c8ad2f2512a19e84698af282900a
MD5 hash:
d050234371767864e62dec5e015e5a97
SHA1 hash:
a79f522437369265febe88afd65d86eb67d3b4e7
Detections:
VidarStealer
Create hunting rule
win_stealc_a0
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Link:
https://www.unpac.me/results/d6dcacc2-7fc3-4557-a379-5eca579c7905/
Parent samples :
ab59931fb0325a31ac86e463f06c01cbb8a8c8ad2f2512a19e84698af282900a
4a167b4a455e452e6e18d6c3da7485ee6200eecc6ba9cb386c13017893f42106
c49f3891c5f1168f59eccfec2dfd503fda8f321a7a7cfc81e1edad027854edc0
80994b791b545ba6a8c906e046ab6ae79c5875a4f42da07085113b4b6f22f8ca
6f34e7b47f6769d81c279e85afec251575561fcd92ad2eca935952b28bc54aae
def454f0d1da69d6c01caed4c7c1894441ba72e8153a9b4058f4407007aaf578
a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f
52b70e93f94a283fc21c250db083e78fa3b7b0da91e21c7f6ac89cde730638fa
fed19121e9d547d9762e7aa6dd53e0756c414bd0a0650e38d6b0c01b000ad2fc
3f9fad1abdb738d1b67e40e2070cec3e5103972f01867df699727e1e1fa8b5fd
ac5be0e12802839366243997af6620e86ae4540a9bd888e1ac140323400095c1
94a8c46c1725fb656990f0b536166eda68c376929f0e221e60db0af6f2f4ac49
0e4673760c64a0792815f9d9562f47346818e54eb29cf1e1d39410fca5f8e00c
718f3ddfb33000759e207ae9f4b3118b34ce44f794749993f660fdcdf4dab027
SH256 hash:
a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f
MD5 hash:
75db6dfdebb9bf0d98acfc15f2219c62
SHA1 hash:
5bc1ceec4269b4e893f2b00c1c4b3c0cb42a3291
Link:
https://www.unpac.me/results/d6dcacc2-7fc3-4557-a379-5eca579c7905/
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/a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)

File information

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

Web download

Vidar

Executable exe a2f94952c89ea440f82877365db5b4a5cf14a10e4168a22a92fce4a8fd98404f

(this sample)

  
Dropped by
Privateloader
  
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 (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateRemoteThread
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW

Comments