MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025
SHA3-384 hash: f144ea540a9e916533463d7b4e81013f91ecfee043d81bdb5390913490067927c5ccc55fbb295b8c43387c97a27fb645
SHA1 hash: efd62bd50c21264eb8906e79cf17958bbbccdccf
MD5 hash: a616e74ccab88d22a38e2d7aabfd159f
humanhash: winter-zebra-lactose-harry
File name:66b9d56da3bee_main.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:12'026'424 bytes
First seen:2024-08-12 13:02:03 UTC
Last seen:2024-08-12 13:41:11 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 196608:zdBQpcLsYT2apvCqsh88kv4oTEmqan5FTqdj3op9PGpPiU:HYcLdB1JmGvfQmTn5FTajYplGpPp
TLSH T14AC6D0037A84DE5EC0295237CCEF491427FDFA457743DA293D98B71C38A27692A0B19E
TrID 28.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
22.5% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
16.8% (.EXE) InstallShield setup (43053/19/16)
12.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
5.1% (.SCR) Windows screen saver (13097/50/3)
File icon (PE):PE icon
dhash icon fcceaf8d2d2386dc (1 x Vidar)
Reporter aachum
Tags:exe vidar


Avatar
iamaachum
147.45.44.104/prog/66b9d56da3bee_main.exe

Vidar C2:
https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk

Intelligence

File Origin
# of uploads :
2
# of downloads :
382
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
66b9d56da3bee_main.exe
Verdict:
No threats detected
Analysis date:
2024-08-12 13:03:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d4dd8f17-5616-423e-ab7e-e248f7dc3b11

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Malwarex-10033462-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ba07d1b35234d5cc65d447
Tags:
Execution Generic Infostealer Network Other Stealth Nekark
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Connection attempt to an infection source
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
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:
anti-vm net obfuscated overlay packed
Link:
https://www.filescan.io/uploads/66ba07cdddcc95ee5a9bb098/reports/e205a9e4-de32-4e57-ab3f-d050e132e7f3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5fcd97f7-8616-4986-930a-e6a176bb7c84
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1491582
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Sigma detected: Silenttrinity Stager Msbuild Activity
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 stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1491582 Sample: 66b9d56da3bee_main.exe Startdate: 12/08/2024 Architecture: WINDOWS Score: 100 34 steamcommunity.com 2->34 36 arpdabl.zapto.org 2->36 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 10 other signatures 2->50 9 66b9d56da3bee_main.exe 1 2->9         started        signatures3 process4 file5 24 C:\Users\user\...\66b9d56da3bee_main.exe.log, ASCII 9->24 dropped 52 Found many strings related to Crypto-Wallets (likely being stolen) 9->52 54 Writes to foreign memory regions 9->54 56 Allocates memory in foreign processes 9->56 58 Injects a PE file into a foreign processes 9->58 13 MSBuild.exe 1 33 9->13         started        signatures6 process7 dnsIp8 38 arpdabl.zapto.org 38.180.132.96, 59153, 80 COGENT-174US United States 13->38 40 steamcommunity.com 23.199.218.33, 443, 49715 AKAMAI-ASUS United States 13->40 42 78.46.239.218, 443, 49716, 49717 HETZNER-ASDE Germany 13->42 26 C:\ProgramData\...\vcruntime140.dll, PE32 13->26 dropped 28 C:\ProgramData\IJECBGIJDGCA\softokn3.dll, PE32 13->28 dropped 30 C:\ProgramData\IJECBGIJDGCA\nss3.dll, PE32 13->30 dropped 32 3 other files (none is malicious) 13->32 dropped 60 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->60 62 Found many strings related to Crypto-Wallets (likely being stolen) 13->62 64 Contains functionality to inject code into remote processes 13->64 66 5 other signatures 13->66 18 cmd.exe 1 13->18         started        file9 signatures10 process11 process12 20 conhost.exe 18->20         started        22 timeout.exe 1 18->22         started       
Score:
74%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025/
Threat name:
ByteCode-MSIL.Trojan.RemLoader
Create hunting rule
Status:
Malicious
First seen:
2024-08-12 13:03:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
45
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zfk3hmo2ifbla57xsf2j3mzptkdr4ywfao2cdxepybq2yowxcasq._file
Verdict:
malicious
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240812-p9twassbkp/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Unsecured Credentials: Credentials In Files
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199751190313
https://t.me/pech0nk
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d598cde8-0d99-47db-9d09-6c66136d4060
Unpacked files
SH256 hash:
86e9d60c29c635146be5eeb4d2df981010bb60d586cf553a75419772bbc0b302
MD5 hash:
6c2bc5b8b43a3118520f0951e4a5b2de
SHA1 hash:
cff937c3d22b83804890ca0584645ea2abaf224d
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
Parent samples :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 hash:
8588aff96413c522fc2b3db70066282c7f9c97b28fe7e7235aca9afe9073ce16
MD5 hash:
f88f0e59cc59595359b025c7c7ade091
SHA1 hash:
8c9fd14c728bd81e1a328ae918ce889e58e6f3af
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
691ed74e60f820f5b1a66d739ff074503bd16f1b7743792bcf4840e9abbc8d2a
MD5 hash:
efa06cce09748a48345a33e7b79c588d
SHA1 hash:
8c7e2a319f1d097fbb378ddb2ce437c15778615d
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
ef13f61443a120c4b032c63fb29f74cde746d117060f85781d5c19ad3539b55d
MD5 hash:
4643a48362887ed5a9c755d96a9e3c5d
SHA1 hash:
5a4cc184ce6a14214569f9a985e8449f253d08af
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
ad08ce6288834c4a6715b3e3e2c961a6b04170e5d062aa32a2a6cb3d7224f5e1
MD5 hash:
95df63519d5303468fb19ab90e597c6e
SHA1 hash:
4dddb178309d0a3a95a02c4da4b614d352ead483
Detections:
VidarStealer
Create hunting rule
win_stealc_a0
Create hunting rule
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
Parent samples :
12df075fcaec366639ab37f203aa412540f351ee17e7f126a4a126e7a61c2a9b
b8a5ef9ea9fa588907a197db55c743559460190aa58b227db10d6be75d8bfe39
e603e36cae3f0fa9badbeaeff8fb0becb1ed444776892db76cd8d219e2ba92bd
c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a
MD5 hash:
4e52d739c324db8225bd9ab2695f262f
SHA1 hash:
71c3da43dc5a0d2a1941e874a6d015a071783889
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 hash:
1cc453cdf74f31e4d913ff9c10acdde2
SHA1 hash:
6e85eae544d6e965f15fa5c39700fa7202f3aafe
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 hash:
c8fd9be83bc728cc04beffafc2907fe9
SHA1 hash:
95ab9f701e0024cedfbd312bcfe4e726744c4f2e
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
edd043f2005dbd5902fc421eabb9472a7266950c5cbaca34e2d590b17d12f5fa
MD5 hash:
550686c0ee48c386dfcb40199bd076ac
SHA1 hash:
ee5134da4d3efcb466081fb6197be5e12a5b22ab
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
SH256 hash:
c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025
MD5 hash:
a616e74ccab88d22a38e2d7aabfd159f
SHA1 hash:
efd62bd50c21264eb8906e79cf17958bbbccdccf
Detections:
SUSP_NET_Msil_Suspicious_Use_StrReverse
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e9caa2cc-02fc-4897-b606-8aed5e0d4ee4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c955b3b1da41/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/c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025

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:DebuggerCheck__PEB
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:NET
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:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_NET_Msil_Suspicious_Use_StrReverse
Create hunting rule
Author:dr4k0nia, modified by Florian Roth
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Web download

Vidar

Executable exe c955b3b1da4142b077f791749db32f9a871e62c503b421dc8fc061ac3ad71025

(this sample)

  
Link
https://tria.ge/240812-p44tbawckg
  
Dropped by
PrivateLoader
  
Delivery method
Distributed via web download

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