File name:

KRSWL0cker.exe

Full analysis: https://app.any.run/tasks/90afd431-455e-4260-9b3a-494d501e8163
Verdict: Malicious activity
Analysis date: October 05, 2022, 01:46:37
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

FB2E388FDFFEBD783B4164FD091ECF18

SHA1:

466AE3A186A90EEA8702E1D17C90EF42E69D260F

SHA256:

16FE9B940B4483675EF1F6C72A73E195707FE7AB4C260D9DEF931BC17F98BE23

SSDEEP:

1536:pNKK+663BZWxKovAsYaN2mR4KY2vbYAm5PV45L6:nKh6CB0Uoos1N2g5YAmyL6

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

    • Changes the autorun value in the registry

      • KRSWL0cker.exe (PID: 3064)
  • SUSPICIOUS

    • Checks supported languages

      • KRSWL0cker.exe (PID: 3064)
    • Reads the computer name

      • KRSWL0cker.exe (PID: 3064)
    • Creates files in the user directory

      • KRSWL0cker.exe (PID: 3064)
  • 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 | Generic CIL Executable (.NET, Mono, etc.) (72.2)
.scr | Windows screen saver (12.9)
.dll | Win32 Dynamic Link Library (generic) (6.4)
.exe | Win32 Executable (generic) (4.4)
.exe | Generic Win/DOS Executable (1.9)

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 2022-May-08 00:21:25
Debug artifacts:
  • C:\Users\root\Downloads\Nitro-Ransomware-master\Nitro-Ransomware-master\NitroRansomware\bin\Debug\ILMerge\CryptoObfuscator_Output\KRSWL0cker.pdb
Comments: -
CompanyName: -
FileDescription: KRSWL0cker
FileVersion: 1.0.0.0
InternalName: KRSWL0cker.exe
LegalCopyright: Copyright © 2783
LegalTrademarks: -
OriginalFilename: KRSWL0cker.exe
ProductName: KRSWL0cker
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

DOS Header

e_magic: MZ
e_cblp: 144
e_cp: 3
e_crlc: -
e_cparhdr: 4
e_minalloc: -
e_maxalloc: 65535
e_ss: -
e_sp: 184
e_csum: -
e_ip: -
e_cs: -
e_ovno: -
e_oemid: -
e_oeminfo: -
e_lfanew: 128

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
NumberofSections: 3
TimeDateStamp: 2022-May-08 00:21:25
PointerToSymbolTable: -
NumberOfSymbols: -
SizeOfOptionalHeader: 224
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
8192
80356
80384
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
7.59342
.reloc
90112
12
512
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.rsrc
98304
1464
1536
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.1267

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.30248
812
UNKNOWN
UNKNOWN
RT_VERSION
1 (#2)
5.00112
490
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
Monitored processes
1
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start krswl0cker.exe

Process information

PID
CMD
Path
Indicators
Parent process
3064"C:\Users\admin\AppData\Local\Temp\KRSWL0cker.exe" C:\Users\admin\AppData\Local\Temp\KRSWL0cker.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Description:
KRSWL0cker
Exit code:
0
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\krswl0cker.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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\microsoft.net\framework\v4.0.30319\mscoreei.dll
Total events
189
Read events
180
Write events
9
Delete events
0

Modification events

(PID) Process:(3064) KRSWL0cker.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:NR
Value:
"C:\Users\admin\AppData\Local\Temp\KRSWL0cker.exe"
(PID) Process:(3064) KRSWL0cker.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:ProxyBypass
Value:
1
(PID) Process:(3064) KRSWL0cker.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:IntranetName
Value:
1
(PID) Process:(3064) KRSWL0cker.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
1
(PID) Process:(3064) KRSWL0cker.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
0
Executable files
0
Suspicious files
31
Text files
68
Unknown types
1

Dropped files

PID
Process
Filename
Type
3064KRSWL0cker.exeC:\Users\admin\Pictures\desktop.ini.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\AppData\Local\Temp\krswtkhrkrs.txttext
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Desktop\facilityjuly.rtf.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Pictures\mortgagetom.jpg.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Desktop\clientedit.rtf.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Documents\northernsimple.rtf.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Desktop\looksomething.rtf.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Pictures\careervalid.jpg.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Documents\volpeace.rtf.krswbinary
MD5:
SHA256:
3064KRSWL0cker.exeC:\Users\admin\Documents\woodexecutive.rtf.krswbinary
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

No data

DNS requests

No data

Threats

No threats detected
No debug info