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| File name: | img_210823436710671028936201782957634346.exe |
| Full analysis: | https://app.any.run/tasks/ba1a9e5d-0410-48c1-8920-726665ee57d9 |
| Verdict: | Malicious activity |
| Threats: | njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. |
| Analysis date: | July 18, 2019, 05:35:29 |
| 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: | 372713963D9DA4E54CF4124379360725 |
| SHA1: | 62A08DAEBD8F88F06780FC913E096E081C7C7229 |
| SHA256: | 3ACEA42DE0ECFABFED04E2465D12228A648921D8CC533042F06B4F55177517F4 |
| SSDEEP: | 24576:bAHnh+eWsN3skA4RV1Hom2KXMmHaZd0p3qaS6hd5:2h+ZkldoPK8YaZdU |
MALICIOUS
Changes the autorun value in the registry
- img_210823436710671028936201782957634346.exe (PID: 3048)
Connects to CnC server
- RegAsm.exe (PID: 2916)
NJRAT was detected
- RegAsm.exe (PID: 2916)
- RegAsm.exe (PID: 2916)
SUSPICIOUS
Creates files in the user directory
- img_210823436710671028936201782957634346.exe (PID: 3048)
Suspicious files were dropped or overwritten
- img_210823436710671028936201782957634346.exe (PID: 3048)
Starts CMD.EXE for commands execution
- img_210823436710671028936201782957634346.exe (PID: 3048)
Executable content was dropped or overwritten
- img_210823436710671028936201782957634346.exe (PID: 3048)
Starts CMD.EXE for self-deleting
- img_210823436710671028936201782957634346.exe (PID: 3048)
Uses NETSH.EXE for network configuration
- RegAsm.exe (PID: 2916)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| CharacterSet: | Unicode |
|---|---|
| LanguageCode: | English (British) |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x0000 |
| ProductVersionNumber: | 0.0.0.0 |
| FileVersionNumber: | 0.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 5.1 |
| ImageVersion: | - |
| OSVersion: | 5.1 |
| EntryPoint: | 0x2800a |
| UninitializedDataSize: | - |
| InitializedDataSize: | 553472 |
| CodeSize: | 581632 |
| LinkerVersion: | 12 |
| PEType: | PE32 |
| TimeStamp: | 2019:07:18 02:49:22+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 18-Jul-2019 00:49:22 |
| Detected languages: |
|
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: | 0x00000110 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 18-Jul-2019 00:49:22 |
| 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 | 0x0008DFDD | 0x0008E000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.67525 |
.rdata | 0x0008F000 | 0x0002FD8E | 0x0002FE00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.76324 |
.data | 0x000BF000 | 0x00008F74 | 0x00005200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.19638 |
.rsrc | 0x000C8000 | 0x0004AE54 | 0x0004B000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.61524 |
.reloc | 0x00113000 | 0x00007134 | 0x00007200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 6.78396 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.40026 | 1007 | Latin 1 / Western European | English - United Kingdom | RT_MANIFEST |
2 | 2.05883 | 296 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
3 | 2.25499 | 296 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
4 | 3.65512 | 53800 | Latin 1 / Western European | English - United Kingdom | RT_ICON |
7 | 3.34702 | 1428 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
8 | 3.2817 | 1674 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
9 | 3.28849 | 1168 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
10 | 3.28373 | 1532 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
11 | 3.26322 | 1628 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
12 | 3.25812 | 1126 | Latin 1 / Western European | English - United Kingdom | RT_STRING |
Imports
ADVAPI32.dll |
COMCTL32.dll |
COMDLG32.dll |
GDI32.dll |
IPHLPAPI.DLL |
KERNEL32.dll |
MPR.dll |
OLEAUT32.dll |
PSAPI.DLL |
SHELL32.dll |
Total processes
45
Monitored processes
5
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 3048 | "C:\Users\admin\Desktop\img_210823436710671028936201782957634346.exe" | C:\Users\admin\Desktop\img_210823436710671028936201782957634346.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 | ||||
| 2916 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | img_210823436710671028936201782957634346.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.7.3062.0 built by: NET472REL1 | ||||
| 4072 | "C:\Windows\System32\cmd.exe" /c TimeOut 1 & Del /F "C:\Users\admin\Desktop\img_210823436710671028936201782957634346.exe" | C:\Windows\System32\cmd.exe | — | img_210823436710671028936201782957634346.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) | ||||
| 3172 | TimeOut 1 | C:\Windows\system32\timeout.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: timeout - pauses command processing Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2424 | netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" "RegAsm.exe" ENABLE | C:\Windows\system32\netsh.exe | — | RegAsm.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
193
Read events
111
Write events
0
Delete events
0
Modification events
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3048 | img_210823436710671028936201782957634346.exe | C:\Users\Public\NOFqlUZJNU.vbs | text | |
MD5:17EC5CCC68F479123907E3C4F88D72DE | SHA256:A7A0A6EDADFAB02BC212D1A68434C7EC587D4F69AAD85D678B61208271E84011 | |||
| 3048 | img_210823436710671028936201782957634346.exe | C:\Users\admin\AppData\Roaming\asfasrewfgsgsdgs\sfasgdgs.bat | executable | |
MD5:6DC48DD1FD9B4FCEA2F90ED2343446B1 | SHA256:8ACB222BE2D4A8B96C7577CEFD135B2EC9F73E19ED9AA0AB72A8A6E8D4A4676D | |||
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
1
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 |
|---|---|---|---|---|---|---|
2916 | RegAsm.exe | 185.247.228.127:6970 | bmz.duckdns.org | — | — | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
bmz.duckdns.org |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
2916 | RegAsm.exe | A Network Trojan was detected | MALWARE [PTsecurity] njRAT.Gen RAT outbound connection |
3 ETPRO signatures available at the full report