File name:

SKlauncher 3.1.exe

Full analysis: https://app.any.run/tasks/7c7d07fb-b46a-461e-ba3e-dababcaa491f
Verdict: Malicious activity
Analysis date: June 24, 2023, 00:24:28
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
MD5:

021B53ABFC25A261077282498E5726A0

SHA1:

BA7F38A28444504E6E8E1F995CC40CEB70FF6409

SHA256:

C3DB9475C3AB6B53D8F6D711F587E5218C9B8D332229A208277BC0B27A24B620

SSDEEP:

24576:7h1tjL2uma7hLQKaikK21SHCJ3ny+SGiPsGSa7tLC+/e0cUEcnr:sghMKai1viny6iPH5hF/e0m2r

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

    No malicious indicators.

  • SUSPICIOUS

    • Checks for Java to be installed

      • SKlauncher 3.1.exe (PID: 3736)

  • INFO

    • The process checks LSA protection

      • javaw.exe (PID: 3444)
      • icacls.exe (PID: 2036)

    • Checks supported languages

      • javaw.exe (PID: 3444)
      • SKlauncher 3.1.exe (PID: 3736)

    • Reads the machine GUID from the registry

      • javaw.exe (PID: 3444)

    • Reads the computer name

      • javaw.exe (PID: 3444)

    • Creates files in the program directory

      • javaw.exe (PID: 3444)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

ProductVersion: 3.1
ProductName: SKlauncher
OriginalFileName: SKlauncher 3.exe
LegalTrademarks: -
LegalCopyright: Mojang
InternalName: SKlauncher
FileVersion: 3.1
FileDescription: The Minecraft Launcher
CompanyName: -
CharacterSet: Windows, Latin1
LanguageCode: English (U.S.)
FileSubtype: -
ObjectFileType: Executable application
FileOS: Windows NT
FileFlags: (none)
FileFlagsMask: 0x0000
ProductVersionNumber: 3.1.0.0
FileVersionNumber: 3.1.0.0
Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: 1
OSVersion: 4
EntryPoint: 0x1590
UninitializedDataSize: 36352
InitializedDataSize: 29696
CodeSize: 23040
LinkerVersion: 2.22
PEType: PE32
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit, No debug
TimeStamp: 2023:06:01 23:28:50+00:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 01-Jun-2023 23:28:50
Detected languages:
  • English - United States
  • Process Default Language
TLS Callbacks: 2 callback(s) detected.
CompanyName: -
FileDescription: The Minecraft Launcher
FileVersion: 3.1
InternalName: SKlauncher
LegalCopyright: Mojang
LegalTrademarks: -
OriginalFilename: SKlauncher 3.exe
ProductName: SKlauncher
ProductVersion: 3.1

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: 9
Time date stamp: 01-Jun-2023 23:28:50
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DEBUG_STRIPPED
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00005970
0x00005A00
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.17063
.data
0x00007000
0x00000010
0x00000200
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.11837
.rdata
0x00008000
0x00000918
0x00000A00
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.27517
.eh_fram\x14\x11
0x00009000
0x00001114
0x00001200
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.82235
.bss
0x0000B000
0x00008DCC
0x00000000
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.idata
0x00014000
0x00000CC0
0x00000E00
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.91037
.CRT
0x00015000
0x00000018
0x00000200
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.0980042
.tls
0x00016000
0x00000020
0x00000200
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.231158
.rsrc
0x00017000
0x00004350
0x00004400
IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.98795

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.24131
712
UNKNOWN
Process Default Language
RT_VERSION
2
2.72548
9
UNKNOWN
Process Default Language
RT_RCDATA
3
2.8438
1128
UNKNOWN
Process Default Language
RT_ICON
10
3.61687
17
UNKNOWN
Process Default Language
RT_RCDATA
17
2.32193
5
UNKNOWN
Process Default Language
RT_RCDATA
18
1
2
UNKNOWN
Process Default Language
RT_RCDATA
20
1.58496
3
UNKNOWN
Process Default Language
RT_RCDATA
21
3.78875
22
UNKNOWN
Process Default Language
RT_RCDATA
22
4.0323
27
UNKNOWN
Process Default Language
RT_RCDATA
25
1.58496
3
UNKNOWN
Process Default Language
RT_RCDATA

Imports

advapi32.dll
kernel32.dll
msvcrt.dll
shell32.dll
user32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
44
Monitored processes
5
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
start runas.exe no specs sklauncher 3.1.exe javaw.exe icacls.exe no specs reg.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2036C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)MC:\Windows\System32\icacls.exe—javaw.exe
User:
Administrator
Company:
Microsoft Corporation
Integrity Level:
HIGH
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\icacls.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\ntmarta.dll
2624reg query "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize" /v AppsUseLightThemeC:\Windows\System32\reg.exe—javaw.exe
User:
Administrator
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
Registry Console Tool
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\reg.exe
c:\windows\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\gdi32.dll
c:\windows\system32\lpk.dll
3444"C:\Program Files\Java\jre1.8.0_271\bin\javaw.exe" -Xms32m -Xmx256m -jar "C:\Users\admin\Downloads\SKlauncher 3.1.exe"C:\Program Files\Java\jre1.8.0_271\bin\javaw.exe
SKlauncher 3.1.exe
User:
Administrator
Company:
Oracle Corporation
Integrity Level:
HIGH
Description:
Java(TM) Platform SE binary
Exit code:
0
Version:
8.0.2710.9
Modules
Images
c:\program files\java\jre1.8.0_271\bin\javaw.exe
c:\windows\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
3532"C:\Windows\System32\runas.exe" /user:administrator "C:\Users\admin\Downloads\SKlauncher 3.1.exe"C:\Windows\System32\runas.exe—explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Run As Utility
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\runas.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
3736"C:\Users\admin\Downloads\SKlauncher 3.1.exe"C:\Users\admin\Downloads\SKlauncher 3.1.exe
runas.exe
User:
Administrator
Integrity Level:
HIGH
Description:
The Minecraft Launcher
Exit code:
0
Version:
3.1
Modules
Images
c:\users\admin\downloads\sklauncher 3.1.exe
c:\windows\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\shlwapi.dll
c:\windows\system32\shell32.dll
Total events
711
Read events
710
Write events
1
Delete events
0

Modification events

(PID) Process:(3444) javaw.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Direct3D\MostRecentApplication
Operation:writeName:Name
Value:
javaw.exe
Executable files
9
Suspicious files
29
Text files
8
Unknown types
0

Dropped files

PID
Process
Filename
Type
3444javaw.exeC:\Users\Administrator\AppData\Roaming\.minecraft\sklauncher\sklauncher-fx.jar.xz —
MD5:—
SHA256:—
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\+JXF4321746293231490797.tmpbinary
MD5:F2684BCE39D701EF54F3C9A717508162
SHA256:53A941C664BBA47E36A20FE71E89EAE3CC92C47B5ACB85D7436C39758DDAF530
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\+JXF6421032210033771051.tmpbinary
MD5:6C4504A7E86D43437C3805A9111F57EF
SHA256:858EFF8227A495097364AD2B90FB4602C4F55DDEC01663B61D7391FE51266322
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\+JXF9219393456319738302.tmpbinary
MD5:C10484D6B9BE5C545CF20FFDBE27ECB2
SHA256:D253C410F4D0FD7F16D7B2ECAEA19B60FB877CB94F5B2752FDA272A3A86FA908
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\imageio54499940360338509.tmpimage
MD5:4BC22D05B225A34A3DDB4F17D2469B77
SHA256:FACE76C9C4FAD9476A1D80483D41772C805808A1383012B1C22065E30D32EDE6
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\+JXF8434271067617132973.tmpbinary
MD5:6531CC951551AB62277D8928F4294264
SHA256:1CBE9C8CD83A2B04A0B8BD7B0FF1372A56E0935FEEA33AA132D91C2899291542
3444javaw.exeC:\Users\Administrator\AppData\Roaming\.minecraft\sklauncher-fx.jarcompressed
MD5:FB47D13FBA919146B00136D3A35EA7DA
SHA256:16EA6E160F46048DF62F826FE5E4FAC39C4F3A02523EC5C6E0272F03699A5FA0
3444javaw.exeC:\Users\Administrator\AppData\Roaming\.minecraft\sklauncher\sklauncher.vmoptionstext
MD5:94EE2459B5D2AE08F136EAA934F2C2A4
SHA256:360E4D232757C63963336C2653C6AE052E5888D51E004780D4CC393335C12519
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\imageio1309521465159423542.tmpimage
MD5:4BC22D05B225A34A3DDB4F17D2469B77
SHA256:FACE76C9C4FAD9476A1D80483D41772C805808A1383012B1C22065E30D32EDE6
3444javaw.exeC:\Users\ADMINI~1\AppData\Local\Temp\+JXF2068647973604515261.tmpbinary
MD5:52355593E805F6C172BFDC156A39A031
SHA256:529BE850E06F62F8904F22BDA77E45BDE4834498FDBEC4FF4201FA3177447A3A
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
38
DNS requests
15
Threats
0

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
4
System
192.168.100.255:137
—
—
—
whitelisted
2692
svchost.exe
239.255.255.250:1900
—
—
—
whitelisted
1076
svchost.exe
224.0.0.252:5355
—
—
—
unknown
4
System
192.168.100.255:138
—
—
—
whitelisted
3444
javaw.exe
188.114.96.3:443
files.skmedix.pl
CLOUDFLARENET
NL
malicious
3444
javaw.exe
142.250.186.110:443
www.google-analytics.com
GOOGLE
US
whitelisted
3444
javaw.exe
13.107.246.45:443
sessionserver.mojang.com
MICROSOFT-CORP-MSN-AS-BLOCK
US
malicious
3444
javaw.exe
185.199.109.153:443
beta.skmedix.pl
FASTLY
US
shared
3444
javaw.exe
185.199.110.153:443
beta.skmedix.pl
FASTLY
US
shared
3444
javaw.exe
104.16.57.101:443
static.cloudflareinsights.com
CLOUDFLARENET
—
whitelisted

DNS requests

Domain
IP
Reputation
files.skmedix.pl
  • 188.114.96.3
  • 188.114.97.3
malicious
authserver.mojang.com
  • 18.66.122.99
  • 18.66.122.115
  • 18.66.122.3
  • 18.66.122.46
suspicious
sessionserver.mojang.com
  • 13.107.246.45
  • 13.107.213.45
suspicious
launchermeta.mojang.com
  • 13.107.246.45
  • 13.107.213.45
whitelisted
piston-meta.mojang.com
  • 13.107.246.45
  • 13.107.213.45
suspicious
resources.download.minecraft.net
  • 13.107.246.45
  • 13.107.213.45
shared
libraries.minecraft.net
  • 13.107.246.45
  • 13.107.213.45
shared
sessionserver.skmedix.pl
  • 188.114.97.3
  • 188.114.96.3
malicious
textures.skmedix.pl
  • 188.114.97.3
  • 188.114.96.3
malicious
beta.skmedix.pl
  • 185.199.110.153
  • 185.199.108.153
  • 185.199.111.153
  • 185.199.109.153
malicious

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
SKlauncher 3.1.exe