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| File name: | OTC_ADDON.sfx.exe |
| Full analysis: | https://app.any.run/tasks/569891f4-51bd-4390-b3d5-9aaef6e7e15f |
| Verdict: | Malicious activity |
| Threats: | DarkComet RAT is a malicious program designed to remotely control or administer a victim's computer, steal private data and spy on the victim. |
| Analysis date: | August 08, 2020, 21:04:18 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | F0FF0D48CBA4A51B450D7676BED384E6 |
| SHA1: | D38F93A60F2CA57F282C5C8F27B2281019417CEF |
| SHA256: | 5FA200FFF75A516BA1F2B7F484D210FDCA32BD844F9BDC569E050FDDC5A3EC90 |
| SSDEEP: | 12288:5hqxSLo5C1Ps4XhitX+t498EFgL4r+HcOYb5:5HLmCiIhiXi7cOq5 |
MALICIOUS
Changes the autorun value in the registry
- OTC_ADDON.exe (PID: 2544)
Changes the login/logoff helper path in the registry
- OTC_ADDON.exe (PID: 2544)
Application was dropped or rewritten from another process
- OTC_ADDON.exe (PID: 2544)
- msdcsc.exe (PID: 3040)
DARKCOMET was detected
- msdcsc.exe (PID: 3040)
SUSPICIOUS
Executable content was dropped or overwritten
- OTC_ADDON.sfx.exe (PID: 2296)
- OTC_ADDON.exe (PID: 2544)
Reads internet explorer settings
- OTC_ADDON.sfx.exe (PID: 2296)
Reads Internet Cache Settings
- OTC_ADDON.sfx.exe (PID: 2296)
Uses ATTRIB.EXE to modify file attributes
- cmd.exe (PID: 2472)
Starts CMD.EXE for commands execution
- OTC_ADDON.exe (PID: 2544)
Starts itself from another location
- OTC_ADDON.exe (PID: 2544)
Creates files in the user directory
- msdcsc.exe (PID: 3040)
INFO
Manual execution by user
- notepad.exe (PID: 4024)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 5.1 |
| ImageVersion: | - |
| OSVersion: | 5.1 |
| EntryPoint: | 0x1ea80 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 254976 |
| CodeSize: | 200704 |
| LinkerVersion: | 14 |
| PEType: | PE32 |
| TimeStamp: | 2020:06:25 12:38:24+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 25-Jun-2020 10:38:24 |
| Detected languages: |
|
| Debug artifacts: |
|
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: | 0x00000118 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 6 |
| Time date stamp: | 25-Jun-2020 10:38:24 |
| 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 | 0x00030F2A | 0x00031000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.70442 |
.rdata | 0x00032000 | 0x0000A5F2 | 0x0000A600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.2593 |
.data | 0x0003D000 | 0x00023720 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.70568 |
.didat | 0x00061000 | 0x00000188 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.29951 |
.rsrc | 0x00062000 | 0x0000DFD0 | 0x0000E000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 6.63693 |
.reloc | 0x00070000 | 0x00002264 | 0x00002400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.55675 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.25329 | 1875 | UNKNOWN | English - United States | RT_MANIFEST |
2 | 5.10026 | 2216 | UNKNOWN | English - United States | RT_ICON |
3 | 5.25868 | 3752 | UNKNOWN | English - United States | RT_ICON |
4 | 5.02609 | 1128 | UNKNOWN | English - United States | RT_ICON |
5 | 5.18109 | 4264 | UNKNOWN | English - United States | RT_ICON |
6 | 5.04307 | 9640 | UNKNOWN | English - United States | RT_ICON |
7 | 3.1586 | 482 | UNKNOWN | English - United States | RT_STRING |
8 | 3.11685 | 460 | UNKNOWN | English - United States | RT_STRING |
9 | 3.11236 | 440 | UNKNOWN | English - United States | RT_STRING |
10 | 2.99727 | 326 | UNKNOWN | English - United States | RT_STRING |
Imports
KERNEL32.dll |
USER32.dll (delay-loaded) |
gdiplus.dll |
Total processes
46
Monitored processes
7
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2296 | "C:\Users\admin\AppData\Local\Temp\OTC_ADDON.sfx.exe" | C:\Users\admin\AppData\Local\Temp\OTC_ADDON.sfx.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 4024 | "C:\Windows\system32\notepad.exe" | C:\Windows\system32\notepad.exe | — | explorer.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2544 | "C:\Users\admin\AppData\Local\Temp\OTC_ADDON.exe" | C:\Users\admin\AppData\Local\Temp\OTC_ADDON.exe | OTC_ADDON.sfx.exe | |
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Exit code: 0 Version: 1, 0, 0, 1 | ||||
| 2472 | "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\admin\AppData\Local\Temp" +s +h | C:\Windows\System32\cmd.exe | — | OTC_ADDON.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3020 | attrib "C:\Users\admin\AppData\Local\Temp" +s +h | C:\Windows\system32\attrib.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3040 | "C:\Users\admin\Documents\MSDCSC\msdcsc.exe" | C:\Users\admin\Documents\MSDCSC\msdcsc.exe | OTC_ADDON.exe | |
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Version: 1, 0, 0, 1 | ||||
| 3508 | notepad | C:\Windows\system32\notepad.exe | — | msdcsc.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
1 017
Read events
943
Write events
0
Delete events
0
Modification events
Executable files
2
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3040 | msdcsc.exe | C:\Users\admin\AppData\Roaming\dclogs\2020-08-08-7.dc | text | |
MD5:F2BBBF135C7831D6D16CE627C9EECEAC | SHA256:4AD49ED0E6489590906E09F88510FC85AABBAF7F1C368F521C82E08CD9BC071C | |||
| 2296 | OTC_ADDON.sfx.exe | C:\Users\admin\AppData\Local\Temp\OTC_ADDON.exe | executable | |
MD5:EDAF86C0E6BDBE06D26DFC84A28C3B02 | SHA256:E1CD7E5DE3C860D9FC1D9F7BAD3398C5DC6FB8F132B46347C3DAD6C9949D7463 | |||
| 2544 | OTC_ADDON.exe | C:\Users\admin\Documents\MSDCSC\msdcsc.exe | executable | |
MD5:EDAF86C0E6BDBE06D26DFC84A28C3B02 | SHA256:E1CD7E5DE3C860D9FC1D9F7BAD3398C5DC6FB8F132B46347C3DAD6C9949D7463 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
15
DNS requests
3
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3040 | msdcsc.exe | 90.66.196.28:1604 | xaurap.ddns.net | Orange | FR | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
xaurap.ddns.net |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
3040 | msdcsc.exe | A Network Trojan was detected | MALWARE [PTsecurity] DarkComet-RAT Inbound connection |
18 ETPRO signatures available at the full report