| File name: | Njrat.exe |
| Full analysis: | https://app.any.run/tasks/36d5489c-e737-4832-be3f-72d6dba85329 |
| 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: | May 20, 2022, 16:20:28 |
| 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, UPX compressed |
| MD5: | 46917F3212638687EC4839BAE1DEBFFF |
| SHA1: | A926177772765A01E51AE2855EFC07826EFEC52A |
| SHA256: | 5B38B79BC7FC0C12910E4D864F924A040FDB9C38AFCC9AEDA7CF34E3768906B1 |
| SSDEEP: | 6144:OcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37+:OcW7KEZlPzCy37+ |
MALICIOUS
Changes the autorun value in the registry
- Njrat.exe (PID: 2964)
- msdcsc.exe (PID: 480)
- iexplore.exe (PID: 2408)
Changes the login/logoff helper path in the registry
- Njrat.exe (PID: 2964)
Drops executable file immediately after starts
- Njrat.exe (PID: 2964)
Changes Security Center notification settings
- msdcsc.exe (PID: 480)
- iexplore.exe (PID: 2408)
DARKCOMET detected by memory dumps
- iexplore.exe (PID: 2408)
DARKCOMET was detected
- iexplore.exe (PID: 2408)
SUSPICIOUS
Checks supported languages
- Njrat.exe (PID: 2964)
- cmd.exe (PID: 3428)
- cmd.exe (PID: 2084)
- msdcsc.exe (PID: 480)
Reads the computer name
- Njrat.exe (PID: 2964)
- msdcsc.exe (PID: 480)
Executable content was dropped or overwritten
- Njrat.exe (PID: 2964)
Drops a file with a compile date too recent
- Njrat.exe (PID: 2964)
Starts CMD.EXE for commands execution
- Njrat.exe (PID: 2964)
Uses ATTRIB.EXE to modify file attributes
- cmd.exe (PID: 2084)
- cmd.exe (PID: 3428)
Starts itself from another location
- Njrat.exe (PID: 2964)
Reads the date of Windows installation
- Njrat.exe (PID: 2964)
Starts Internet Explorer
- msdcsc.exe (PID: 480)
INFO
Checks supported languages
- notepad.exe (PID: 3504)
- attrib.exe (PID: 3896)
- attrib.exe (PID: 3972)
- iexplore.exe (PID: 2408)
- notepad.exe (PID: 2712)
Reads the computer name
- iexplore.exe (PID: 2408)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
DarkComet
(PID) Process(2408) iexplore.exe
C2 (1)5.129.36.73:1604
Version#KCMDDC51#
MutexDC_MUTEX-X6Z6AGP
sidGuest16
FWB1
gencode4cUaqJlWNM8B
InstallTrue
COMBOPATH7
Install pathMSDCSC\msdcsc.exe
Registry keyMicroUpdate
Edit date2007-04-16
PersistanceTrue
MELT1
Change Date0
Directory attributesTrue
File attrubutesTrue
SH11
SH31
SH41
SH51
SH61
SH71
SH81
SH91
SH101
CHIDEF1
CHIDED1
PERS1
Offline keyloggerTrue
TRiD
| .exe | | | UPX compressed Win32 Executable (38.2) |
|---|---|---|
| .exe | | | Win32 EXE Yoda's Crypter (37.5) |
| .dll | | | Win32 Dynamic Link Library (generic) (9.2) |
| .exe | | | Win32 Executable (generic) (6.3) |
| .exe | | | Win16/32 Executable Delphi generic (2.9) |
EXIF
EXE
| ProductVersion: | 4, 0, 0, 0 |
|---|---|
| ProductName: | Remote Service Application |
| OriginalFileName: | MSRSAAP.EXE |
| LegalCopyright: | Copyright (C) 1999 |
| InternalName: | MSRSAAPP |
| FileVersion: | 1, 0, 0, 1 |
| FileDescription: | Remote Service Application |
| CompanyName: | Microsoft Corp. |
| Comments: | Remote Service Application |
| CharacterSet: | Unicode |
| LanguageCode: | English (U.S.) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 4.0.0.0 |
| FileVersionNumber: | 4.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xb5820 |
| UninitializedDataSize: | 487424 |
| InitializedDataSize: | 4096 |
| CodeSize: | 253952 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 2012:06:07 17:59:53+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 07-Jun-2012 15:59:53 |
| Detected languages: |
|
| Comments: | Remote Service Application |
| CompanyName: | Microsoft Corp. |
| FileDescription: | Remote Service Application |
| FileVersion: | 1, 0, 0, 1 |
| InternalName: | MSRSAAPP |
| LegalCopyright: | Copyright (C) 1999 |
| OriginalFilename: | MSRSAAP.EXE |
| ProductName: | Remote Service Application |
| ProductVersion: | 4, 0, 0, 0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0050 |
| Pages in file: | 0x0002 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x000F |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x001A |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000100 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 07-Jun-2012 15:59:53 |
| 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 |
|---|---|---|---|---|---|
UPX0 | 0x00001000 | 0x00077000 | 0x00000000 | IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 0 |
UPX1 | 0x00078000 | 0x0003E000 | 0x0003DC00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.92304 |
.rsrc | 0x000B6000 | 0x00001000 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 3.52074 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.34616 | 856 | Latin 1 / Western European | French - France | RT_VERSION |
2 | 7.02531 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
3 | 7.16168 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
4 | 7.32379 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
5 | 7.17598 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
6 | 7.15949 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
7 | 7.1298 | 308 | Latin 1 / Western European | English - United States | RT_CURSOR |
4083 | 7.45862 | 524 | Latin 1 / Western European | UNKNOWN | RT_STRING |
4084 | 7.65064 | 1020 | Latin 1 / Western European | UNKNOWN | RT_STRING |
4085 | 6.84604 | 168 | Latin 1 / Western European | UNKNOWN | RT_STRING |
Imports
AVICAP32.DLL |
KERNEL32.DLL |
SHFolder.dll |
URLMON.DLL |
WS2_32.DLL |
advapi32.dll |
comctl32.dll |
gdi32.dll |
gdiplus.dll |
msacm32.dll |
Total processes
43
Monitored processes
9
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 480 | "C:\Users\admin\Documents\MSDCSC\msdcsc.exe" | C:\Users\admin\Documents\MSDCSC\msdcsc.exe | Njrat.exe | ||||||||||||
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Exit code: 0 Version: 1, 0, 0, 1 Modules
| |||||||||||||||
| 2084 | "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\admin\AppData\Local\Temp" +s +h | C:\Windows\System32\cmd.exe | — | Njrat.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
| |||||||||||||||
| 2408 | "C:\Program Files\Internet Explorer\iexplore.exe" | C:\Program Files\Internet Explorer\iexplore.exe | msdcsc.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Internet Explorer Exit code: 0 Version: 11.00.9600.16428 (winblue_gdr.131013-1700) Modules
DarkComet(PID) Process(2408) iexplore.exe C2 (1)5.129.36.73:1604 Version#KCMDDC51# MutexDC_MUTEX-X6Z6AGP sidGuest16 FWB1 gencode4cUaqJlWNM8B InstallTrue COMBOPATH7 Install pathMSDCSC\msdcsc.exe Registry keyMicroUpdate Edit date2007-04-16 PersistanceTrue MELT1 Change Date0 Directory attributesTrue File attrubutesTrue SH11 SH31 SH41 SH51 SH61 SH71 SH81 SH91 SH101 CHIDEF1 CHIDED1 PERS1 Offline keyloggerTrue | |||||||||||||||
| 2712 | notepad | C:\Windows\system32\notepad.exe | — | iexplore.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2964 | "C:\Users\admin\AppData\Local\Temp\Njrat.exe" | C:\Users\admin\AppData\Local\Temp\Njrat.exe | Explorer.EXE | ||||||||||||
User: admin Company: Microsoft Corp. Integrity Level: MEDIUM Description: Remote Service Application Exit code: 0 Version: 1, 0, 0, 1 Modules
| |||||||||||||||
| 3428 | "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\admin\AppData\Local\Temp\Njrat.exe" +s +h | C:\Windows\System32\cmd.exe | — | Njrat.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
| |||||||||||||||
| 3504 | notepad | C:\Windows\system32\notepad.exe | — | Njrat.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3896 | 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) Modules
| |||||||||||||||
| 3972 | attrib "C:\Users\admin\AppData\Local\Temp\Njrat.exe" +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) Modules
| |||||||||||||||
Total events
2 026
Read events
1 942
Write events
84
Delete events
0
Modification events
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | MicroUpdate |
Value: C:\Users\admin\Documents\MSDCSC\msdcsc.exe | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon |
| Operation: | write | Name: | UserInit |
Value: C:\Windows\system32\userinit.exe,C:\Users\admin\Documents\MSDCSC\msdcsc.exe | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2964) Njrat.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (480) msdcsc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | MicroUpdate |
Value: C:\Users\admin\Documents\MSDCSC\msdcsc.exe | |||
| (PID) Process: | (480) msdcsc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\System |
| Operation: | write | Name: | DisableTaskMgr |
Value: 1 | |||
| (PID) Process: | (480) msdcsc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\System |
| Operation: | write | Name: | DisableRegistryTools |
Value: 1 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2964 | Njrat.exe | C:\Users\admin\Documents\MSDCSC\msdcsc.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
0
Threats
4
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 |
|---|---|---|---|---|---|---|
2408 | iexplore.exe | 5.129.36.73:1604 | — | Novotelecom Ltd | RU | malicious |
DNS requests
Threats
4 ETPRO signatures available at the full report