MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73. 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


PrivateLoader


Vendor detections: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73
SHA3-384 hash: 1a1caee8f541642b0c9348f9a293cc06df58ded8fe0005c69a007d4c454f4723a8f910ca2f9a572ed0070e9f088bebcf
SHA1 hash: a6bd1c6a78483ba1b7ee3cb9670568684039501d
MD5 hash: af49996cdbe1e9d9ca66458a06725a94
humanhash: oregon-blossom-london-missouri
File name:file
Download: download sample
Signature PrivateLoader
Create hunting rule
File size:2'667'368 bytes
First seen:2023-11-21 14:10:39 UTC
Last seen:2023-11-21 15:18:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 49152:ltNX6YES/M1lVuRk+W2gQS4v51nzzz9gt9dvZO:l3R5+o7XmvdvA
TLSH T15BC5E04C4FE4517BD654C8199C3AF2A85A592DBB0CE09F223484D4BCE6B6B40DFE7B09
TrID 30.2% (.EXE) Win64 Executable (generic) (10523/12/4)
18.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
14.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.9% (.EXE) Win32 Executable (generic) (4505/5/1)
5.9% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter jstrosch
Tags:.NET exe MSIL PrivateLoader signed

Code Signing Certificate

Organisation:ninja Inc
Issuer:ninja Inc
Algorithm:sha256WithRSAEncryption
Valid from:2023-11-21T01:14:38Z
Valid to:2024-11-21T01:14:38Z
Serial number: 77aa23c3ae1e0cf3a4eadd65a5f7e6ff
Thumbprint Algorithm:SHA256
Thumbprint: 3507fb19933d8c9c694ba801ed2b4726d8cf0449b4590c0d9f30464df9e494c1
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
372
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-11-21 19:40:47 UTC
Tags:
evasion stealer vidar stealc loader smoke neoreklami miner adware
Link:
https://app.any.run/tasks/e34eea58-33c7-4fc3-a3bd-e6f7a33e64db

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/459549/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.30791.13699.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Connecting to a non-recommended domain
Creating a process from a recently created file
Creating a file in the %temp% directory
Blocking the User Account Control
Query of malicious DNS domain
Sending a TCP request to an infection source
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/655cba8415cd82a1c9990874/reports/a47bd3e5-ec38-4889-b791-00c4ad041eca/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73
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:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c7fd24b9-b2d2-41bb-b970-7fd03a76b523
Result
Threat name:
n/a
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1345847
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Drops script or batch files to the startup folder
Hides threads from debuggers
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Query firmware table information (likely to detect VMs)
Sigma detected: Drops script at startup location
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to evade debugger and weak emulator (self modifying code)
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1345847 Sample: file.exe Startdate: 21/11/2023 Architecture: WINDOWS Score: 100 120 Antivirus detection for URL or domain 2->120 122 Antivirus detection for dropped file 2->122 124 Multi AV Scanner detection for dropped file 2->124 126 5 other signatures 2->126 9 file.exe 2 3 2->9         started        12 cmd.exe 2->12         started        14 cmd.exe 2->14         started        16 cmd.exe 2->16         started        process3 signatures4 134 Writes to foreign memory regions 9->134 136 Allocates memory in foreign processes 9->136 138 Adds a directory exclusion to Windows Defender 9->138 140 2 other signatures 9->140 18 CasPol.exe 15 135 9->18         started        23 powershell.exe 22 9->23         started        25 conhost.exe 12->25         started        27 conhost.exe 14->27         started        process5 dnsIp6 102 111.90.146.230 SHINJIRU-MY-AS-APShinjiruTechnologySdnBhdMY Malaysia 18->102 104 107.167.110.216 OPERASOFTWAREUS United States 18->104 106 19 other IPs or domains 18->106 60 C:\Users\...\ybzeIgk3vcyWUcRsslRKVpyP.exe, PE32 18->60 dropped 62 C:\Users\...\x9P0xe5SRokQooKZPKNvXRQD.exe, PE32 18->62 dropped 64 C:\Users\...\wzsPU5oQHClqG27oTn1dC2BT.exe, PE32 18->64 dropped 66 141 other malicious files 18->66 dropped 128 Drops script or batch files to the startup folder 18->128 130 Creates HTML files with .exe extension (expired dropper behavior) 18->130 132 Writes many files with high entropy 18->132 29 RdIn7fFpImh01WQCWVf4Dis6.exe 32 18->29         started        34 ySmLYTqjhemz8GHj8EWqrelv.exe 18->34         started        36 MKmHZKYZsJ7bswRbd8qmP7n1.exe 18->36         started        40 21 other processes 18->40 38 conhost.exe 23->38         started        file7 signatures8 process9 dnsIp10 108 107.167.110.218 OPERASOFTWAREUS United States 29->108 110 107.167.125.189 OPERASOFTWAREUS United States 29->110 118 2 other IPs or domains 29->118 86 Opera_installer_2311211413364246780.dll, PE32 29->86 dropped 88 C:\Users\user\AppData\Local\...\opera_package, PE32 29->88 dropped 90 C:\Users\user\...\additional_file0.tmp, PE32 29->90 dropped 98 3 other malicious files 29->98 dropped 142 Writes many files with high entropy 29->142 42 RdIn7fFpImh01WQCWVf4Dis6.exe 29->42         started        45 RdIn7fFpImh01WQCWVf4Dis6.exe 29->45         started        47 RdIn7fFpImh01WQCWVf4Dis6.exe 29->47         started        144 Detected unpacking (overwrites its own PE header) 34->144 146 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 34->146 148 Query firmware table information (likely to detect VMs) 34->148 150 Tries to detect sandboxes and other dynamic analysis tools (window names) 36->150 152 Tries to evade debugger and weak emulator (self modifying code) 36->152 154 Hides threads from debuggers 36->154 112 37.228.108.132 NO-OPERANO Norway 40->112 114 184.28.190.19 AKAMAI-ASN1EU United States 40->114 116 184.28.190.75 AKAMAI-ASN1EU United States 40->116 92 Opera_installer_2311211414213268096.dll, PE32 40->92 dropped 94 Opera_installer_2311211414015296752.dll, PE32 40->94 dropped 96 Opera_installer_2311211414001867020.dll, PE32 40->96 dropped 100 11 other malicious files 40->100 dropped 156 Tries to detect sandboxes / dynamic malware analysis system (registry check) 40->156 49 nOmm3EY2vNmnfIuEN89CWG0k.exe 40->49         started        51 nOmm3EY2vNmnfIuEN89CWG0k.exe 40->51         started        53 vUB1dVIpoMhtPtFoSJRh9GVM.exe 40->53         started        55 2 other processes 40->55 file11 signatures12 process13 file14 70 Opera_installer_2311211413407016616.dll, PE32 42->70 dropped 57 RdIn7fFpImh01WQCWVf4Dis6.exe 42->57         started        72 Opera_installer_2311211413368316560.dll, PE32 45->72 dropped 74 Opera_installer_2311211413396251136.dll, PE32 47->74 dropped 76 Opera_installer_2311211413400663984.dll, PE32 49->76 dropped 78 Opera_installer_2311211413409006788.dll, PE32 51->78 dropped 80 Opera_installer_2311211413496827792.dll, PE32 53->80 dropped 82 Opera_installer_2311211413581398088.dll, PE32 55->82 dropped 84 Opera_installer_2311211413502437916.dll, PE32 55->84 dropped process15 file16 68 Opera_installer_2311211413412786996.dll, PE32 57->68 dropped
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-11-21 14:11:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=upfiupm66ov37w47xm64bbxcoh4bor3vaztaprup5gqh45f2rnzq._file
Verdict:
malicious
Result
Malware family:
privateloader
Create hunting rule
Score:
  10/10
Tags:
family:glupteba family:privateloader dropper evasion loader themida trojan upx
Link:
https://tria.ge/reports/231121-rhaz8aff8t/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Enumerates physical storage devices
Launches sc.exe
Legitimate hosting services abused for malware hosting/C2
Modifies boot configuration data using bcdedit
Themida packer
UPX packed file
Windows security modification
Modifies Windows Firewall
Glupteba
Glupteba payload
PrivateLoader
Windows security bypass
Unpacked files
SH256 hash:
f7036bb52474a712b7c0df7138e802ff3d6cb69206975a8c94fa54a79be520fb
MD5 hash:
bc0f6633498cd130e88ef9308f1bf98c
SHA1 hash:
0b658014813e5950ec92d0d369df07e20ad1ad83
Link:
https://www.unpac.me/results/e5ab1961-e939-47be-8406-31d921358c77/
SH256 hash:
a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73
MD5 hash:
af49996cdbe1e9d9ca66458a06725a94
SHA1 hash:
a6bd1c6a78483ba1b7ee3cb9670568684039501d
Link:
https://www.unpac.me/results/e5ab1961-e939-47be-8406-31d921358c77/
Malware family:
Glupteba
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3ca8a3d9ef3/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/a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73

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: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

PrivateLoader

Executable exe a3ca8a3d9ef3abbfdb9fbb3dc086e271f8174775066607c68fe9a07e74ba8b73

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/459549/

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