MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1
SHA3-384 hash: 2dcc6bc059481a06d8aac921f2dae78ba308e1a70dfbbbdbf6ee222f784e9006cb675996c2c80a4d8940c60c1262cd15
SHA1 hash: 9739d9e27dbc19091eeadc3c6d18d3f3d351bff1
MD5 hash: 960eb4d74f0f0c05c4c43ce1e98bf571
humanhash: michigan-football-saturn-kentucky
File name:960eb4d74f0f0c05c4c43ce1e98bf571
Download: download sample
Signature Vidar
Create hunting rule
File size:363'008 bytes
First seen:2024-03-19 22:52:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:43kc+V5W0MPeogbh0HWE0J98gBzl6e/u:u4MG+eSgBzlZ
TLSH T1D374AEE4657BCD26EBEC43B960555A01A77D468AEFD3F709601404E08807B82DA63EFF
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 zbetcheckin
Tags:32 exe vidar

Intelligence

File Origin
# of uploads :
1
# of downloads :
492
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 22:54:03 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/818b3c92-6684-49cb-a75a-f2716caecd9b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Zusy-10023527-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
net_reactor packed packed
Link:
https://www.filescan.io/uploads/65fa17500ef6f5eba4951e73/reports/0cd18c7a-15ce-4870-b30e-77ac25c29835/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1
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/5cc414ce-1dc1-4270-8858-f78bed140707
Result
Threat name:
PureLog Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1412043
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
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
Multi AV Scanner detection for submitted file
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 PureLog Stealer
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1412043 Sample: DzJhG0Q1GT.exe Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 33 steamcommunity.com 2->33 39 Found malware configuration 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected PureLog Stealer 2->43 45 8 other signatures 2->45 9 DzJhG0Q1GT.exe 2 2->9         started        signatures3 process4 signatures5 47 Found many strings related to Crypto-Wallets (likely being stolen) 9->47 49 Contains functionality to inject code into remote processes 9->49 51 Writes to foreign memory regions 9->51 53 2 other signatures 9->53 12 RegAsm.exe 37 9->12         started        17 conhost.exe 9->17         started        process6 dnsIp7 35 5.75.210.0, 443, 49730, 49731 HETZNER-ASDE Germany 12->35 37 steamcommunity.com 104.91.116.60, 443, 49729 AKAMAI-ASUS United States 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 5 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:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1/
Threat name:
ByteCode-MSIL.Trojan.PureLogStealer
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 22:47:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wa5knpp7m3fuveiu5ozwcxyhv5cvwr2ppl4zrtjvxjd7qs57awyq._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:vidar family:zgrat botnet:aa2e2e94c456b90a61eb47ba9d0c2074 rat stealer
Link:
https://tria.ge/reports/240319-2tykrsad9w/
Behaviour
Modifies system certificate store
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detect Vidar Stealer
Detect ZGRat V1
Vidar
ZGRat
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199654112719
https://t.me/r2d0s
Unpacked files
SH256 hash:
356d372582881cba28087d8f1582a54065d5de140fd59bf4c7615dde1215e5c9
MD5 hash:
83035bb4425201bfe16417f35dc90784
SHA1 hash:
5892dcb34c19215b7e6a9a45c1c0e1092780fdb0
Detections:
VidarStealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Link:
https://www.unpac.me/results/6472f389-b8f0-4d3b-811c-14fb4ab05ebe/
SH256 hash:
b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1
MD5 hash:
960eb4d74f0f0c05c4c43ce1e98bf571
SHA1 hash:
9739d9e27dbc19091eeadc3c6d18d3f3d351bff1
Link:
https://www.unpac.me/results/6472f389-b8f0-4d3b-811c-14fb4ab05ebe/
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/b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
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 b03aa6bdff66cb4a9114ebb3615f07af455b474f7af998cd35ba47f84bbf05b1

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2787191/

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


Avatar
zbet commented on 2024-03-19 22:52:31 UTC

url : hxxp://163.5.215.226/cry.exe