9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261

Analysis

max time kernel
120s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2024 13:03

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General

Target

9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
Size

178KB
MD5

08b1f8aec0de311805bb1f6321333c40
SHA1

579949260d73ea7d118196408dcff51dc07d4098
SHA256

9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261
SHA512

113f71560d66b7e7922e8b6a9fa8ffb0ae6696daa6b4f5cf2939fdb957e5e660bde7675fe6fe85b0550419e264214221df6aa4e34d0d6603535c9356e81c3cc8
SSDEEP

3072:UVqoCl/YgjxEufVU0TbTyDDalRmQ9yLrPgY34gv6nQt:UsLqdufVUNDayQ9WPgM6k

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-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Executes dropped EXE 6 IoCs

pid	Process
2128	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261n.exe
3044	icsys.icn.exe
4024	explorer.exe
4420	spoolsv.exe
5060	svchost.exe
4924	spoolsv.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\Svchost = "c:\\windows\\resources\\svchost.exe RO"	svchost.exe
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

Drops file in System32 directory 2 IoCs

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

Drops file in Windows directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Resources\Themes\icsys.icn.exe	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
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

System Location Discovery: System Language Discovery 1 TTPs 6 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	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.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	spoolsv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
3044	icsys.icn.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4024	explorer.exe
5060	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
3044	icsys.icn.exe
3044	icsys.icn.exe
4024	explorer.exe
4024	explorer.exe
4420	spoolsv.exe
4420	spoolsv.exe
5060	svchost.exe
5060	svchost.exe
4924	spoolsv.exe
4924	spoolsv.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2128	2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe	84
PID 2516 wrote to memory of 2128	2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe	84
PID 2516 wrote to memory of 3044	2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe	86
PID 2516 wrote to memory of 3044	2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe	86
PID 2516 wrote to memory of 3044	2516	9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe	86
PID 3044 wrote to memory of 4024	3044	icsys.icn.exe	87
PID 3044 wrote to memory of 4024	3044	icsys.icn.exe	87
PID 3044 wrote to memory of 4024	3044	icsys.icn.exe	87
PID 4024 wrote to memory of 4420	4024	explorer.exe	88
PID 4024 wrote to memory of 4420	4024	explorer.exe	88
PID 4024 wrote to memory of 4420	4024	explorer.exe	88
PID 4420 wrote to memory of 5060	4420	spoolsv.exe	89
PID 4420 wrote to memory of 5060	4420	spoolsv.exe	89
PID 4420 wrote to memory of 5060	4420	spoolsv.exe	89
PID 5060 wrote to memory of 4924	5060	svchost.exe	91
PID 5060 wrote to memory of 4924	5060	svchost.exe	91
PID 5060 wrote to memory of 4924	5060	svchost.exe	91

C:\Users\Admin\AppData\Local\Temp\9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe
"C:\Users\Admin\AppData\Local\Temp\9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261N.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2516
- \??\c:\users\admin\appdata\local\temp\9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261n.exe
  c:\users\admin\appdata\local\temp\9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261n.exe
  2⤵
  - Executes dropped EXE
  PID:2128
- C:\Windows\Resources\Themes\icsys.icn.exe
  C:\Windows\Resources\Themes\icsys.icn.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3044
- - \??\c:\windows\resources\themes\explorer.exe
    c:\windows\resources\themes\explorer.exe
    3⤵
    - Modifies visiblity of hidden/system files in Explorer
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4024
  - - \??\c:\windows\resources\spoolsv.exe
      c:\windows\resources\spoolsv.exe SE
      4⤵
      Executes dropped EXE
      Drops file in Windows directory
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4420
    - - \??\c:\windows\resources\svchost.exe
        
        c:\windows\resources\svchost.exe
        5⤵
        Modifies visiblity of hidden/system files in Explorer
        Executes dropped EXE
        Adds Run key to start application
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:5060
      - \??\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:4924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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:\Users\Admin\AppData\Local\Temp\9d4f692b7e9b9655e1900d52f9477b5a71e29520be390b4eeede575f046af261n.exe

Filesize
43KB

MD5
a16f041c87529221c86e16124c7e9add

SHA1
e4933d7fc395b397db9aba78b05a2a490622c7e5

SHA256
df2abf387893332f28c4df68b10a6b176dc9706142055dccccf447f5a9cede2d

SHA512
972eb4a6cf96692ae0ad43b42a6d418406aad5539451b4e24e564b89a347a9fc8ee5572d9b876d9de7b72192ba70aa114e8de9d721b37af9c169503aaef611e9

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

Filesize
135KB

MD5
7050f5493ec87d0a9e4e843865958c19

SHA1
02c422c29d6e5515d81727b1adbe596217dd742c

SHA256
e6402f03bcd6e3add17a78dc5319b610c651e9fef3a1076fc4098b6e38169eb2

SHA512
0005df93a80a42003a979a8fa502ddf9c08b36cfdb67e93d8e4bd6825eda491665e4476d09014cef875b85cc3594839b36b25266622679b78b24d62fc13a5277

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

Filesize
135KB

MD5
dd4418238c7fdea254aed3eacd0f31bc

SHA1
16c82702ac7f9ec097946076e9da75b747e7b1bf

SHA256
a3fcf1bdb032cc813314bd389bd7562f32c45d80160f4f28e544f33a1a0e24ad

SHA512
aefbb89b8d06bd61722a6916d94e57be3e20dc9aead32519428755d895524ef198e51ae19d9c63b54f04b67f87043dc00d7371619658b389d4b27af347af9cae

Download Submit
C:\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
18441d51b4766ed6d33bd152cc7d0a91

SHA1
b81cfd64b9a4adf2825e5fca7f55a8021fa28cf8

SHA256
46a54a8b0fa444d9975eb8b1cb193903e10cfb465417895dca7834b4710bedd2

SHA512
69f5d22cb2fa6bae5fa45da2fd12f7ca6d990c154d30e5dbe4b5d3de5c20ada9cae33418c4d9447cb826af6a4c2c59256042ccaf9bef3656fff885f668e4c965

Download Submit
C:\Windows\Resources\svchost.exe

Filesize
135KB

MD5
dbd115e8b9742686eb87885dbc818611

SHA1
abb3e786f4cca4aa2a38a0890a6d63873c959dbc

SHA256
95e20966b4267b81a92a573d199e2a8d47c1d44e48dd9ffc51cce2c956d6dee0

SHA512
35c4a7ab53fce452553687ea49110671456898daaa6467cad934ae277077939da2d8f85855826f443dcce1b973b6e724d8c7ec1339a8ae0d9fa7823108560024

Download Submit
memory/2516-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2516-46-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3044-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4024-47-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4420-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4924-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/5060-48-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download