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| File name: | доширак.exe |
| Full analysis: | https://app.any.run/tasks/8fafc727-a677-4b2d-90b0-df1403fcf265 |
| 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: | May 21, 2022, 06:51:00 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 5FE361943269BD286E4D66580A27C178 |
| SHA1: | 00E7F1D49C1D6F10AA5AA4C403289F828359F72D |
| SHA256: | C1AD8DBEAB60EFF02FB64B2DB549827BB2FF56E1F823BA47545A83751E8D9E70 |
| SSDEEP: | 1536:DNRGWnmHuP+gRJNIq7Lk6FQHYv7EgTboiMF:DNEWm0+yJ6qc668jqF |
MALICIOUS
Drops executable file immediately after starts
- доширак.exe (PID: 1956)
Writes to a start menu file
- доширак.exe (PID: 1956)
Connects to CnC server
- доширак.exe (PID: 1956)
Changes the autorun value in the registry
- доширак.exe (PID: 1956)
NJRAT was detected
- доширак.exe (PID: 1956)
SUSPICIOUS
Checks supported languages
- доширак.exe (PID: 1956)
Uses NETSH.EXE for network configuration
- доширак.exe (PID: 1956)
Creates files in the user directory
- доширак.exe (PID: 1956)
Reads Environment values
- netsh.exe (PID: 1408)
- доширак.exe (PID: 1956)
Executable content was dropped or overwritten
- доширак.exe (PID: 1956)
Drops a file with a compile date too recent
- доширак.exe (PID: 1956)
Reads the computer name
- доширак.exe (PID: 1956)
Uses TASKKILL.EXE to kill process
- доширак.exe (PID: 1956)
INFO
Checks supported languages
- netsh.exe (PID: 1408)
- taskkill.exe (PID: 1040)
Reads the computer name
- taskkill.exe (PID: 1040)
- netsh.exe (PID: 1408)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xabae |
| UninitializedDataSize: | - |
| InitializedDataSize: | 69120 |
| CodeSize: | 35840 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2022:05:21 08:47:49+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 21-May-2022 06:47:49 |
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: | 3 |
| Time date stamp: | 21-May-2022 06:47:49 |
| 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 | 0x00002000 | 0x00008BB4 | 0x00008C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.60565 |
.rsrc | 0x0000C000 | 0x00010B0C | 0x00010C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.80691 |
.reloc | 0x0001E000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 4.96801 | 487 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
41
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1956 | "C:\Users\admin\AppData\Local\Temp\доширак.exe" | C:\Users\admin\AppData\Local\Temp\доширак.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
| |||||||||||||||
| 1408 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\доширак.exe" "доширак.exe" ENABLE | C:\Windows\system32\netsh.exe | — | доширак.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) Modules
| |||||||||||||||
| 1040 | taskkill /F /IM cmd.exe | C:\Windows\system32\taskkill.exe | — | доширак.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 211
Read events
1 015
Write events
0
Delete events
0
Modification events
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1956 | доширак.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2038145944bf089562a931b058149edc.exe | executable | |
MD5:5FE361943269BD286E4D66580A27C178 | SHA256:C1AD8DBEAB60EFF02FB64B2DB549827BB2FF56E1F823BA47545A83751E8D9E70 | |||
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 |
|---|---|---|---|---|---|---|
1956 | доширак.exe | 37.1.217.131:7655 | — | Leaseweb Deutschland GmbH | DE | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1956 | доширак.exe | A Network Trojan was detected | ET TROJAN Generic njRAT/Bladabindi CnC Activity (ll) |
4 ETPRO signatures available at the full report