File name:

Skinchanger.exe

Full analysis: https://app.any.run/tasks/ee6dd05f-fec7-4e75-ba6b-3c24244ad513
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.

Malware Trends Tracker     >>>
Analysis date: October 14, 2020, 17:11:06
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
rat
revenge
njrat
bladabindi
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

C4C1D381DB75B277589AA364A799E51A

SHA1:

6CF2A45A3F89C8A888C40FB5D57ACD59B999DEEC

SHA256:

FB5CB7491F5B16C1731DDC615963FFC2EB1FBB112E68979714ED610A0C9B5D3F

SSDEEP:

24576:ZHLmCiIhlEjx+6528t/QiWMlqlJiqwGId1HqPajsc:KwQxZo8qZMlYEj

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Application was dropped or rewritten from another process

      • csrs.exe (PID: 1396)
      • boost.exe (PID: 2632)
      • Rir.exe (PID: 3228)
      • winthreads.exe (PID: 3396)
      • csrs.exe (PID: 1916)

    • Connects to CnC server

      • csrs.exe (PID: 1396)
      • csrs.exe (PID: 1916)

    • REVENGE was detected

      • csrs.exe (PID: 1396)
      • csrs.exe (PID: 1916)

    • NJRAT was detected

      • csrs.exe (PID: 1396)
      • csrs.exe (PID: 1916)

  • SUSPICIOUS

    • Starts CMD.EXE for commands execution

      • WScript.exe (PID: 2540)

    • Executes scripts

      • boost.exe (PID: 2632)
      • csrs.exe (PID: 1396)

    • Executable content was dropped or overwritten

      • Skinchanger.exe (PID: 3364)
      • boost.exe (PID: 2632)
      • Rir.exe (PID: 3228)
      • csrs.exe (PID: 1396)

    • Starts application with an unusual extension

      • cmd.exe (PID: 2336)

    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 2336)

    • Creates files in the program directory

      • csrs.exe (PID: 1396)

    • Creates files in the user directory

      • csrs.exe (PID: 1396)

    • Starts itself from another location

      • csrs.exe (PID: 1396)

  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2020:06:25 12:38:24+02:00
PEType: PE32
LinkerVersion: 14
CodeSize: 200704
InitializedDataSize: 241152
UninitializedDataSize: -
EntryPoint: 0x1ea80
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 25-Jun-2020 10:38:24
Detected languages:
  • Process Default Language
Debug artifacts:
  • D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb

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:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

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
0x0002D0D0
0x0002D200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
2.71433
.reloc
0x00090000
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
Latin 1 / Western European
UNKNOWN
RT_MANIFEST
7
3.66634
508
Latin 1 / Western European
UNKNOWN
RT_STRING
8
3.71728
582
Latin 1 / Western European
UNKNOWN
RT_STRING
9
3.73856
422
Latin 1 / Western European
UNKNOWN
RT_STRING
10
3.55807
220
Latin 1 / Western European
UNKNOWN
RT_STRING
11
3.89762
1124
Latin 1 / Western European
UNKNOWN
RT_STRING
12
3.68258
356
Latin 1 / Western European
UNKNOWN
RT_STRING
13
3.61824
272
Latin 1 / Western European
UNKNOWN
RT_STRING
14
3.61995
344
Latin 1 / Western European
UNKNOWN
RT_STRING
15
3.4037
232
Latin 1 / Western European
UNKNOWN
RT_STRING

Imports

KERNEL32.dll
USER32.dll (delay-loaded)
gdiplus.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
53
Monitored processes
15
Malicious processes
3
Suspicious processes
3

Behavior graph

Click at the process to see the details
drop and start drop and start start drop and start skinchanger.exe #REVENGE csrs.exe boost.exe wscript.exe no specs cmd.exe no specs taskkill.exe no specs taskkill.exe no specs timeout.exe no specs chcp.com no specs rir.exe taskkill.exe no specs timeout.exe no specs winthreads.exe no specs vbc.exe no specs #REVENGE csrs.exe

Process information

PID
CMD
Path
Indicators
Parent process
1036taskkill /f /im Rir.exeC:\Windows\system32\taskkill.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
128
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\taskkill.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\version.dll
c:\windows\system32\user32.dll
1396"C:\System\Systemroot\Backups\csrs.exe" C:\System\Systemroot\Backups\csrs.exe
Skinchanger.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\system\systemroot\backups\csrs.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
1916"C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\csrs.exe" C:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\csrs.exe
csrs.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\roaming\microsoft\windows\start menu\csrs.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
2336cmd /c ""C:\log\sektor.bat" "C:\Windows\System32\cmd.exe—WScript.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
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2540"C:\Windows\System32\WScript.exe" "C:\log\run.vbe" C:\Windows\System32\WScript.exe—boost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft ® Windows Based Script Host
Exit code:
0
Version:
5.8.7600.16385
Modules
Images
c:\windows\system32\wscript.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
2632"C:\System\Systemroot\Backups\boost.exe" C:\System\Systemroot\Backups\boost.exe
Skinchanger.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\system\systemroot\backups\boost.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\winsxs\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.7601.17514_none_72d18a4386696c80\gdiplus.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
2856taskkill /f /im Rir.exeC:\Windows\system32\taskkill.exe—cmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
128
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\taskkill.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\version.dll
c:\windows\system32\user32.dll
3228"Rir.exe" e -p789 kick.rarC:\log\Rir.exe
cmd.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\log\rir.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
3284timeout 3C:\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)
Modules
Images
c:\windows\system32\timeout.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
3336timeout 2C:\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)
Modules
Images
c:\windows\system32\timeout.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
Total events
603
Read events
587
Write events
16
Delete events
0

Modification events

(PID) Process:(3364) Skinchanger.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3364) Skinchanger.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2632) boost.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2632) boost.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2540) WScript.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2540) WScript.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(1396) csrs.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(1396) csrs.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
Executable files
6
Suspicious files
1
Text files
2
Unknown types
1

Dropped files

PID
Process
Filename
Type
1396csrs.exe\Device\HarddiskVolume2\SystemVolumРµInformation\log —
MD5:—
SHA256:—
1396csrs.exeC:\Users\admin\AppData\Local\Temp\uy49_3cx.0.vb —
MD5:—
SHA256:—
1396csrs.exeC:\Users\admin\AppData\Local\Temp\uy49_3cx.cmdline —
MD5:—
SHA256:—
3996vbc.exeC:\Users\admin\AppData\Local\Temp\uy49_3cx.out —
MD5:—
SHA256:—
1396csrs.exe\Device\HarddiskVolume2\SystemVolumРµInformation\System —
MD5:—
SHA256:—
2632boost.exeC:\log\sektor.battext
MD5:—
SHA256:—
3364Skinchanger.exeC:\System\Systemroot\Backups\csrs.exeexecutable
MD5:—
SHA256:—
2632boost.exeC:\log\kick.rarcompressed
MD5:—
SHA256:—
3364Skinchanger.exeC:\System\Systemroot\Backups\boost.exeexecutable
MD5:—
SHA256:—
1396csrs.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\csrs.exeexecutable
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
0
Threats
80

HTTP requests

No 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
1396
csrs.exe
213.135.139.67:25565
—
PJSC Rostelecom
RU
malicious
1916
csrs.exe
213.135.139.67:25565
—
PJSC Rostelecom
RU
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] MSIL/Revenge-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] Revenge/hamza-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
REMOTE [PTsecurity] NjRAT.Revenge
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] MSIL/Revenge-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] Revenge/hamza-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
REMOTE [PTsecurity] NjRAT.Revenge
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] MSIL/Revenge-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] Revenge/hamza-RAT CnC Checkin
1396
csrs.exe
A Network Trojan was detected
REMOTE [PTsecurity] NjRAT.Revenge
1396
csrs.exe
A Network Trojan was detected
MALWARE [PTsecurity] MSIL/Revenge-RAT CnC Checkin
31 ETPRO signatures available at the full report
No debug info
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Reports
Skinchanger.exe