c83490a5e3eaccd318f250575b2358f8fe9f8a0ed59c20966c93dafef8cf4b9d

Analysis

max time kernel
120s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 09:02

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General

Target

d0ba0362861766daa30cf3d7424c52a0N.exe
Size

3.6MB
MD5

d0ba0362861766daa30cf3d7424c52a0
SHA1

29b6adec19da3929577715875683ed388b0c3f19
SHA256

c83490a5e3eaccd318f250575b2358f8fe9f8a0ed59c20966c93dafef8cf4b9d
SHA512

6e41cba4e8f42f851a2ad0ab8071371960f4c43d8dd4528e323d5103de264bd57d945e08ae7d3ecb7fe19484caf9ef14b6a2d8a304c160f4e648c120eb0b2ee0
SSDEEP

98304:BzBOBfKMpHGqcfsLyQecNEqCNCjRqGy5XYBHOhN2qlxz:Bz/MpmJ0LdDLCAyiHOvP

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-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

pid	Process
3640	d0ba0362861766daa30cf3d7424c52a0n.exe
4088	icsys.icn.exe
4408	explorer.exe
3080	spoolsv.exe
4368	svchost.exe
3916	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\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	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	d0ba0362861766daa30cf3d7424c52a0N.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	d0ba0362861766daa30cf3d7424c52a0N.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
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
4088	icsys.icn.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4408	explorer.exe
4368	svchost.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4900	d0ba0362861766daa30cf3d7424c52a0N.exe
4088	icsys.icn.exe
4088	icsys.icn.exe
3640	d0ba0362861766daa30cf3d7424c52a0n.exe
3640	d0ba0362861766daa30cf3d7424c52a0n.exe
4408	explorer.exe
4408	explorer.exe
3080	spoolsv.exe
3080	spoolsv.exe
4368	svchost.exe
4368	svchost.exe
3916	spoolsv.exe
3916	spoolsv.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 3640	4900	d0ba0362861766daa30cf3d7424c52a0N.exe	85
PID 4900 wrote to memory of 3640	4900	d0ba0362861766daa30cf3d7424c52a0N.exe	85
PID 4900 wrote to memory of 4088	4900	d0ba0362861766daa30cf3d7424c52a0N.exe	87
PID 4900 wrote to memory of 4088	4900	d0ba0362861766daa30cf3d7424c52a0N.exe	87
PID 4900 wrote to memory of 4088	4900	d0ba0362861766daa30cf3d7424c52a0N.exe	87
PID 4088 wrote to memory of 4408	4088	icsys.icn.exe	88
PID 4088 wrote to memory of 4408	4088	icsys.icn.exe	88
PID 4088 wrote to memory of 4408	4088	icsys.icn.exe	88
PID 4408 wrote to memory of 3080	4408	explorer.exe	90
PID 4408 wrote to memory of 3080	4408	explorer.exe	90
PID 4408 wrote to memory of 3080	4408	explorer.exe	90
PID 3080 wrote to memory of 4368	3080	spoolsv.exe	91
PID 3080 wrote to memory of 4368	3080	spoolsv.exe	91
PID 3080 wrote to memory of 4368	3080	spoolsv.exe	91
PID 4368 wrote to memory of 3916	4368	svchost.exe	92
PID 4368 wrote to memory of 3916	4368	svchost.exe	92
PID 4368 wrote to memory of 3916	4368	svchost.exe	92

C:\Users\Admin\AppData\Local\Temp\d0ba0362861766daa30cf3d7424c52a0N.exe
"C:\Users\Admin\AppData\Local\Temp\d0ba0362861766daa30cf3d7424c52a0N.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:4900
- \??\c:\users\admin\appdata\local\temp\d0ba0362861766daa30cf3d7424c52a0n.exe
  c:\users\admin\appdata\local\temp\d0ba0362861766daa30cf3d7424c52a0n.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3640
- 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:4088
- - \??\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:4408
  - - \??\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:3080
    - - \??\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:4368
      - \??\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:3916

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\d0ba0362861766daa30cf3d7424c52a0n.exe

Filesize
3.4MB

MD5
7a647af3c112ad805296a22b2a276e7c

SHA1
9cdf137e3f2493c9e141d5ec05f890e32b9b4e87

SHA256
20739e8fc050187af013e2499718895e4c980699ccaf046b2f96b12497e61959

SHA512
71d86d8dc598aafa91da8e0d971d1bbb87135832b848547c5c611bc828d165625c7a19af2cd300373190cf3eb782c714ac73d84ada53b37b6d8c1ee8508bcd86

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

Filesize
135KB

MD5
e2a504fc4f13e48012458dadef53d607

SHA1
8686670b2d0c8da85f47a467786cccf45016586b

SHA256
00f48224efed9d41d691cbb72d9433148037aa08058af041d6efeffda8c17597

SHA512
3338fc468b45b32108f17aefd3b9fc41334db6cca4700d85bce1982a2262ec4d495316d95a23a700cddb85eca95099d6133435ab8b50b448bcaea9ebd5e62fa2

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

Filesize
135KB

MD5
c291f732becbbfecbbcb81a568928c6a

SHA1
99970fe669b1084fae6c7d779579fc3dc50d1419

SHA256
0c89ab2c561c0743eaf5130b62cad92f5ba7e2ceac65ff8e3fca2404521a49e2

SHA512
dcf6a023081f6ac60a442d4d8bd6766194d7b92fb5058f72ce7ff5461debe304eeeccafb26cdde77cf5798ee289fb9e50b01b64d0a8203b2f67a68e15c9411c1

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

Filesize
135KB

MD5
b76c3daacbceda2e1b4d5e9938035012

SHA1
97a982afc7045e738e3bbe88ce9d2c249be9d86e

SHA256
7fd9116f6d44b53c45b2eec136054a17270d2de2a57e90c886f490dcf93d5bd5

SHA512
da337eb28b9a22b2fadb8adff4c5f1eb441a26d57ca8262f8b9a40b3bbd564ef4170747e5d9eff40d50d4b278e051f32003233012920222568a580c3a48dde2a

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

Filesize
135KB

MD5
fe2d3c798c3021547b84d5959742a8e2

SHA1
19c319b04f15496b360543c313deb5370f865b7b

SHA256
c5deeb61acac431597dd7f4677974075b8a455d1603fa37e985813979b7de786

SHA512
8cca270e6d8a87e5ef5228a9756bee361b6dbc319d90e459bd19dcfb0ffef805a613bb99a94d3802249ef16e8b73f6cef5d51c8f33a3f93469c1c123615e6a94

Download Submit
memory/3080-45-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/3916-44-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4088-46-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4368-49-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4408-48-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4900-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4900-47-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download