Windows
Analysis Report
Telexcopy.pdf.jar
Overview
General Information
Detection
Score: | 64 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Classification
- System is w10x64
- 7za.exe (PID: 6668 cmdline:
7za.exe x -y -oC:\ja r "C:\User s\user\Des ktop\Telex copy.pdf.j ar" MD5: 77E556CDFDC5C592F5C46DB4127C6F4C) - conhost.exe (PID: 5352 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
- java.exe (PID: 5904 cmdline:
java.exe - jar "C:\Us ers\user\D esktop\Tel excopy.pdf .jar" serv ices MD5: 9DAA53BAB2ECB33DC0D9CA51552701FA) - conhost.exe (PID: 7960 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
- cleanup
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_JARBomb | Yara detected JARBomb | Joe Security |
Click to jump to signature section
AV Detection |
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Source: | Virustotal: | Perma Link |
Software Vulnerabilities |
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Source: | Process created: |
Source: | UDP traffic detected without corresponding DNS query: |
Source: | DNS traffic detected: |
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: | ||
Source: | String found in binary or memory: |
Source: | Process Stats: |
Source: | Section loaded: | Jump to behavior |
Source: | Classification label: |
Source: | Mutant created: | ||
Source: | Mutant created: |
Source: | Key opened: | Jump to behavior |
Source: | Virustotal: |
Source: | Process created: | ||
Source: | Process created: | ||
Source: | Process created: | ||
Source: | Process created: |
Source: | Code function: | 23_2_0167126B | |
Source: | Code function: | 23_2_0167667B | |
Source: | Code function: | 23_2_01671043 |
Hooking and other Techniques for Hiding and Protection |
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Source: | Static PE information: |
Malware Analysis System Evasion |
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Source: | File source: |
Source: | Last function: | ||
Source: | Last function: |
Source: | Queries volume information: | Jump to behavior |
Reconnaissance | Resource Development | Initial Access | Execution | Persistence | Privilege Escalation | Defense Evasion | Credential Access | Discovery | Lateral Movement | Collection | Command and Control | Exfiltration | Impact |
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Gather Victim Identity Information | Acquire Infrastructure | Valid Accounts | 1 Exploitation for Client Execution | 1 DLL Side-Loading | 1 Process Injection | 1 Masquerading | OS Credential Dumping | 11 System Information Discovery | Remote Services | Data from Local System | 1 Non-Application Layer Protocol | Exfiltration Over Other Network Medium | Abuse Accessibility Features |
Credentials | Domains | Default Accounts | Scheduled Task/Job | Boot or Logon Initialization Scripts | 1 DLL Side-Loading | 1 Process Injection | LSASS Memory | Application Window Discovery | Remote Desktop Protocol | Data from Removable Media | 1 Application Layer Protocol | Exfiltration Over Bluetooth | Network Denial of Service |
Email Addresses | DNS Server | Domain Accounts | At | Logon Script (Windows) | Logon Script (Windows) | 1 DLL Side-Loading | Security Account Manager | Query Registry | SMB/Windows Admin Shares | Data from Network Shared Drive | Steganography | Automated Exfiltration | Data Encrypted for Impact |
Employee Names | Virtual Private Server | Local Accounts | Cron | Login Hook | Login Hook | 11 Obfuscated Files or Information | NTDS | System Network Configuration Discovery | Distributed Component Object Model | Input Capture | Protocol Impersonation | Traffic Duplication | Data Destruction |
This section contains all screenshots as thumbnails, including those not shown in the slideshow.
Source | Detection | Scanner | Label | Link |
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8% | ReversingLabs | Binary.Trojan.Generic | ||
16% | Virustotal | Browse |
Source | Detection | Scanner | Label | Link |
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0% | Avira URL Cloud | safe | ||
0% | Avira URL Cloud | safe | ||
0% | Avira URL Cloud | safe | ||
0% | Virustotal | Browse |
Name | IP | Active | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|---|
s3-r-w.eu-north-1.amazonaws.com | 3.5.218.56 | true | false | high | |
mbycket45344.s3.eu-north-1.amazonaws.com | unknown | unknown | false | high |
Name | Source | Malicious | Antivirus Detection | Reputation |
---|---|---|---|---|
false |
| unknown | ||
false |
| unknown | ||
false |
| low |
Joe Sandbox version: | 40.0.0 Tourmaline |
Analysis ID: | 1416890 |
Start date and time: | 2024-03-28 08:39:55 +01:00 |
Joe Sandbox product: | CloudBasic |
Overall analysis duration: | 0h 12m 2s |
Hypervisor based Inspection enabled: | false |
Report type: | full |
Cookbook file name: | defaultwindowsfilecookbook.jbs |
Analysis system description: | Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01 |
Run name: | Without Tracing |
Number of analysed new started processes analysed: | 25 |
Number of new started drivers analysed: | 0 |
Number of existing processes analysed: | 0 |
Number of existing drivers analysed: | 0 |
Number of injected processes analysed: | 0 |
Technologies: |
|
Analysis Mode: | default |
Analysis stop reason: | Timeout |
Sample name: | Telexcopy.pdf.jar |
Detection: | MAL |
Classification: | mal64.expl.evad.winJAR@4/1@1/0 |
EGA Information: | Failed |
HCA Information: |
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Cookbook Comments: |
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- Behavior information exceeds normal sizes, reducing to normal. Report will have missing behavior information.
- Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, SgrmBroker.exe, MoUsoCoreWorker.exe, conhost.exe, backgroundTaskHost.exe, VSSVC.exe, svchost.exe, UsoClient.exe
- Excluded domains from analysis (whitelisted): ocsp.digicert.com, slscr.update.microsoft.com, login.live.com, self.events.data.microsoft.com, ctldl.windowsupdate.com, settings-win.data.microsoft.com, time.windows.com, fe3cr.delivery.mp.microsoft.com
- Execution Graph export aborted for target java.exe, PID 5904 because there are no executed function
- Not all processes where analyzed, report is missing behavior information
- Report size getting too big, too many NtCreateFile calls found.
Match | Associated Sample Name / URL | SHA 256 | Detection | Threat Name | Link | Context |
---|---|---|---|---|---|---|
s3-r-w.eu-north-1.amazonaws.com | Get hash | malicious | Unknown | Browse |
| |
Get hash | malicious | Phisher | Browse |
| ||
Get hash | malicious | HTMLPhisher | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | HTMLPhisher | Browse |
| ||
Get hash | malicious | Unknown | Browse |
| ||
Get hash | malicious | Unknown | Browse |
|
Process: | C:\Windows\System32\7za.exe |
File Type: | |
Category: | dropped |
Size (bytes): | 58 |
Entropy (8bit): | 4.295408745419112 |
Encrypted: | false |
SSDEEP: | 3:ZLCAWIzBEnbjMGDmJEu14:1KItUbjH6Je |
MD5: | 157DBA0F5431A21AC2EF8C2C915B137A |
SHA1: | 6F58240EE2B2750A8BAD8BD98F791A90F536D82A |
SHA-256: | EAD1F504881AF4188ED86C0AE26DE22FD3AB202ECC9A1642DE1DC970D0C1857E |
SHA-512: | A11BE40C902A6BE9D5D0E46C31EDA26BAAB50C2E701BAC993DF115A5377CE09340F60C3EA3865E2914A878231773576F3A19E769F002A0ED7C664687007EE14A |
Malicious: | false |
Reputation: | low |
Preview: |
File type: | |
Entropy (8bit): | 4.1162050781100925 |
TrID: |
|
File name: | Telexcopy.pdf.jar |
File size: | 405'300 bytes |
MD5: | 81e621517a407ae36da0a767b960c88c |
SHA1: | 421f3489d10b803e2dd64d0b47ce619da2da448a |
SHA256: | ca438598c383fab834c5e52369032e30c657f8f70cbb095f181ea7779d34bba1 |
SHA512: | cd0510723447c5ace63f4ec9eb1aa0aa7d9d56b70f08b16c92c71b9825351122e59c1b5173e1e7288f59a8d732be122e90be397521f80e71328d743ad172788c |
SSDEEP: | 192:WtZ3hAJtjmbwOqaI55LEOkOYiDiMkCjvDhvLlSIz3v4M3LwsUE+1MB7hikCOrPiH:cZ3hOOJvsEOWGWCjvSmwM7wsTvQMC |
TLSH: | 85843372E576E4C8FD49DCD2730CEE75698A5EAC47ABE02251201B7458418F9EEE0C8E |
File Content Preview: | PK.........xzX................META-INF/MANIFEST.MFUT...h..f.....M..LK-...K-*....R0.3..M...u.I,..R(N-*.LN-...u..K2......PK..!...8...:...PK........I.zX................META-INF/e/V/D/u/n/a/M/r/Y/p/Q/U/N/A/I/T/f/E/i/K/P/m/w/q/J/z/v/b/s/k/t/d/H/C/h/Z/F/l/S/g/o |
Icon Hash: | d08c8e8ea2868a54 |
Timestamp | Source Port | Dest Port | Source IP | Dest IP |
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Mar 28, 2024 08:49:43.651784897 CET | 65423 | 53 | 192.168.2.7 | 1.1.1.1 |
Mar 28, 2024 08:49:43.749649048 CET | 53 | 65423 | 1.1.1.1 | 192.168.2.7 |
Timestamp | Source IP | Dest IP | Trans ID | OP Code | Name | Type | Class | DNS over HTTPS |
---|---|---|---|---|---|---|---|---|
Mar 28, 2024 08:49:43.651784897 CET | 192.168.2.7 | 1.1.1.1 | 0xfbe2 | Standard query (0) | A (IP address) | IN (0x0001) | false |
Timestamp | Source IP | Dest IP | Trans ID | Reply Code | Name | CName | Address | Type | Class | DNS over HTTPS |
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Mar 28, 2024 08:49:43.749649048 CET | 1.1.1.1 | 192.168.2.7 | 0xfbe2 | No error (0) | s3-r-w.eu-north-1.amazonaws.com | CNAME (Canonical name) | IN (0x0001) | false | ||
Mar 28, 2024 08:49:43.749649048 CET | 1.1.1.1 | 192.168.2.7 | 0xfbe2 | No error (0) | 3.5.218.56 | A (IP address) | IN (0x0001) | false | ||
Mar 28, 2024 08:49:43.749649048 CET | 1.1.1.1 | 192.168.2.7 | 0xfbe2 | No error (0) | 3.5.216.50 | A (IP address) | IN (0x0001) | false |
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Target ID: | 0 |
Start time: | 08:40:43 |
Start date: | 28/03/2024 |
Path: | C:\Windows\System32\7za.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x5d0000 |
File size: | 289'792 bytes |
MD5 hash: | 77E556CDFDC5C592F5C46DB4127C6F4C |
Has elevated privileges: | false |
Has administrator privileges: | false |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 1 |
Start time: | 08:40:43 |
Start date: | 28/03/2024 |
Path: | C:\Windows\System32\conhost.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff75da10000 |
File size: | 862'208 bytes |
MD5 hash: | 0D698AF330FD17BEE3BF90011D49251D |
Has elevated privileges: | false |
Has administrator privileges: | false |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | true |
Target ID: | 23 |
Start time: | 10:34:21 |
Start date: | 28/03/2024 |
Path: | C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_749031\java.exe |
Wow64 process (32bit): | true |
Commandline: | |
Imagebase: | 0x5d0000 |
File size: | 257'664 bytes |
MD5 hash: | 9DAA53BAB2ECB33DC0D9CA51552701FA |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | moderate |
Has exited: | false |
Target ID: | 24 |
Start time: | 10:34:21 |
Start date: | 28/03/2024 |
Path: | C:\Windows\System32\conhost.exe |
Wow64 process (32bit): | false |
Commandline: | |
Imagebase: | 0x7ff75da10000 |
File size: | 862'208 bytes |
MD5 hash: | 0D698AF330FD17BEE3BF90011D49251D |
Has elevated privileges: | true |
Has administrator privileges: | true |
Programmed in: | C, C++ or other language |
Reputation: | high |
Has exited: | false |