| File name: | beacon.exe |
| Full analysis: | https://app.any.run/tasks/1d837366-c5af-4cdd-8657-7caf675fdec9 |
| Verdict: | Malicious activity |
| Threats: | Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks. |
| Analysis date: | April 16, 2019, 14:12:20 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows |
| MD5: | F378690E5D6B58598E42E8FBED584699 |
| SHA1: | 04E8CB59387352B157D1A54F1968254C29604308 |
| SHA256: | 28479479A64F0B5E0D6849EE4163F9DAEBE7945F59C7BCF7D941BB42A5B4F179 |
| SSDEEP: | 6144:QR2nSMa+deJRfKNGlzJMJrtG8YDMdc6I+4AGyRznGgNII2:QYS1Y8Rfr6J7rNII |
MALICIOUS
COBALTSTRIKE was detected
- beacon.exe (PID: 2928)
- rundll32.exe (PID: 2412)
SUSPICIOUS
Uses RUNDLL32.EXE to load library
- rundll32.exe (PID: 3992)
- beacon.exe (PID: 2928)
Application launched itself
- rundll32.exe (PID: 3992)
Starts CMD.EXE for commands execution
- beacon.exe (PID: 2928)
Uses IPCONFIG.EXE to discover IP address
- cmd.exe (PID: 2332)
Connects to server without host name
- beacon.exe (PID: 2928)
- rundll32.exe (PID: 2412)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2018:04:05 03:01:27+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 2.22 |
| CodeSize: | 7680 |
| InitializedDataSize: | 283648 |
| UninitializedDataSize: | 1536 |
| EntryPoint: | 0x14b0 |
| OSVersion: | 4 |
| ImageVersion: | 1 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 05-Apr-2018 01:01:27 |
| TLS Callbacks: | 2 callback(s) detected. |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 7 |
| Time date stamp: | 05-Apr-2018 01:01:27 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00001000 | 0x00001D04 | 0x00001E00 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.82366 |
.data | 0x00003000 | 0x00042424 | 0x00042600 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.59107 |
.rdata | 0x00046000 | 0x000002F4 | 0x00000400 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.358 |
.bss | 0x00047000 | 0x0000045C | 0x00000000 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
.idata | 0x00048000 | 0x000006EC | 0x00000800 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 4.60684 |
.CRT | 0x00049000 | 0x00000034 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.267013 |
.tls | 0x0004A000 | 0x00000020 | 0x00000200 | IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0.22482 |
Imports
KERNEL32.dll |
msvcrt.dll |
Total processes
37
Monitored processes
6
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2332 | C:\Windows\system32\cmd.exe /C ipconfig /all | C:\Windows\system32\cmd.exe | — | beacon.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 2412 | C:\Windows\System32\rundll32.exe | C:\Windows\System32\rundll32.exe | rundll32.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2432 | C:\Windows\system32\rundll32.exe | C:\Windows\system32\rundll32.exe | beacon.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2836 | ipconfig /all | C:\Windows\system32\ipconfig.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: IP Configuration Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2928 | "C:\Users\admin\AppData\Local\Temp\beacon.exe" | C:\Users\admin\AppData\Local\Temp\beacon.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 3992 | C:\Windows\system32\rundll32.exe | C:\Windows\system32\rundll32.exe | — | beacon.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
84
Read events
51
Write events
33
Delete events
0
Modification events
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASMANCS |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (2928) beacon.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\beacon_RASMANCS |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
26
TCP/UDP connections
2
DNS requests
0
Threats
32
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2928 | beacon.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | — | — | malicious |
2928 | beacon.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 48 b | malicious |
2928 | beacon.exe | POST | 200 | 37.139.31.129:80 | http://37.139.31.129/submit.php?id=35742 | NL | binary | 48 b | malicious |
2412 | rundll32.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 207 Kb | malicious |
2928 | beacon.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 80 b | malicious |
2412 | rundll32.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 48 b | malicious |
2928 | beacon.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 72.5 Kb | malicious |
2412 | rundll32.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 48 b | malicious |
2412 | rundll32.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 48 b | malicious |
2928 | beacon.exe | GET | 200 | 37.139.31.129:80 | http://37.139.31.129/dpixel | NL | binary | 72.5 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2928 | beacon.exe | 37.139.31.129:80 | — | Digital Ocean, Inc. | NL | malicious |
2412 | rundll32.exe | 37.139.31.129:80 | — | Digital Ocean, Inc. | NL | malicious |
DNS requests
Threats
PID | Process | Class | Message |
|---|---|---|---|
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike send output by POST binary |
2928 | beacon.exe | Potentially Bad Traffic | ET INFO GENERIC SUSPICIOUS POST to Dotted Quad with Fake Browser 1 |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike Beacon Observed |
2928 | beacon.exe | A Network Trojan was detected | MALWARE [PTsecurity] Cobalt Strike send output by POST binary |
2928 | beacon.exe | Potentially Bad Traffic | ET INFO GENERIC SUSPICIOUS POST to Dotted Quad with Fake Browser 1 |
2412 | rundll32.exe | A Network Trojan was detected | MALWARE [PTsecurity] Backdoor.Cobalt |