b97a8f7f8d94ab544501f35597711b50cf3274a76f75fc27f9fe92edc07a510c

Analysis

max time kernel
120s
max time network
17s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27/07/2024, 22:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0a3166cfc6d771412517fd2ae96f29f0N.exe
Size

4.7MB
MD5

0a3166cfc6d771412517fd2ae96f29f0
SHA1

63b37bb26ac2272966c1c9b82debf93ea8be0574
SHA256

b97a8f7f8d94ab544501f35597711b50cf3274a76f75fc27f9fe92edc07a510c
SHA512

1994634bef6761e7885433a9a1bb4191eb678404d8068a7129f8b64bf8426ecb65700ea08003bd53c029b8612bc0f9ee89b55a87b929b6afb01a9225260966c1
SSDEEP

49152:tYtAAX6FcShtPyqSLhSFULhMYYKqFWsMhUY71l8bX:q8yqEUFYhMYYKqFWsMhf16

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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

Executes dropped EXE 6 IoCs

pid	Process
696	0a3166cfc6d771412517fd2ae96f29f0n.exe
1644	icsys.icn.exe
388	explorer.exe
2864	spoolsv.exe
2020	svchost.exe
2832	spoolsv.exe

Loads dropped DLL 11 IoCs

pid	Process
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
1644	icsys.icn.exe
388	explorer.exe
2864	spoolsv.exe
2020	svchost.exe
2944	WerFault.exe
2944	WerFault.exe
2944	WerFault.exe
2944	WerFault.exe
2944	WerFault.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\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	0a3166cfc6d771412517fd2ae96f29f0N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2944	696	WerFault.exe	30

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0a3166cfc6d771412517fd2ae96f29f0n.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	0a3166cfc6d771412517fd2ae96f29f0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	spoolsv.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\CID\{A3358E75-826A3-31A5-2C1E-14A484D53571}	0a3166cfc6d771412517fd2ae96f29f0n.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\CID\{A3358E75-826A3-31A5-2C1E-14A484D53571}\242DD93D\2 = "118105046078008009198080245028157129229105021171"	0a3166cfc6d771412517fd2ae96f29f0n.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\CID\{A3358E75-826A3-31A5-2C1E-14A484D53571}\242DD93D	0a3166cfc6d771412517fd2ae96f29f0n.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\CID	0a3166cfc6d771412517fd2ae96f29f0n.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2736	schtasks.exe
2276	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
388	explorer.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe
2020	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
388	explorer.exe
2020	svchost.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
2368	0a3166cfc6d771412517fd2ae96f29f0N.exe
1644	icsys.icn.exe
1644	icsys.icn.exe
388	explorer.exe
388	explorer.exe
2864	spoolsv.exe
2864	spoolsv.exe
2020	svchost.exe
2020	svchost.exe
2832	spoolsv.exe
2832	spoolsv.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 696	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	30
PID 2368 wrote to memory of 696	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	30
PID 2368 wrote to memory of 696	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	30
PID 2368 wrote to memory of 696	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	30
PID 2368 wrote to memory of 1644	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	31
PID 2368 wrote to memory of 1644	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	31
PID 2368 wrote to memory of 1644	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	31
PID 2368 wrote to memory of 1644	2368	0a3166cfc6d771412517fd2ae96f29f0N.exe	31
PID 1644 wrote to memory of 388	1644	icsys.icn.exe	32
PID 1644 wrote to memory of 388	1644	icsys.icn.exe	32
PID 1644 wrote to memory of 388	1644	icsys.icn.exe	32
PID 1644 wrote to memory of 388	1644	icsys.icn.exe	32
PID 388 wrote to memory of 2864	388	explorer.exe	33
PID 388 wrote to memory of 2864	388	explorer.exe	33
PID 388 wrote to memory of 2864	388	explorer.exe	33
PID 388 wrote to memory of 2864	388	explorer.exe	33
PID 2864 wrote to memory of 2020	2864	spoolsv.exe	34
PID 2864 wrote to memory of 2020	2864	spoolsv.exe	34
PID 2864 wrote to memory of 2020	2864	spoolsv.exe	34
PID 2864 wrote to memory of 2020	2864	spoolsv.exe	34
PID 2020 wrote to memory of 2832	2020	svchost.exe	35
PID 2020 wrote to memory of 2832	2020	svchost.exe	35
PID 2020 wrote to memory of 2832	2020	svchost.exe	35
PID 2020 wrote to memory of 2832	2020	svchost.exe	35
PID 388 wrote to memory of 1656	388	explorer.exe	36
PID 388 wrote to memory of 1656	388	explorer.exe	36
PID 388 wrote to memory of 1656	388	explorer.exe	36
PID 388 wrote to memory of 1656	388	explorer.exe	36
PID 2020 wrote to memory of 2736	2020	svchost.exe	37
PID 2020 wrote to memory of 2736	2020	svchost.exe	37
PID 2020 wrote to memory of 2736	2020	svchost.exe	37
PID 2020 wrote to memory of 2736	2020	svchost.exe	37
PID 696 wrote to memory of 2944	696	0a3166cfc6d771412517fd2ae96f29f0n.exe	42
PID 696 wrote to memory of 2944	696	0a3166cfc6d771412517fd2ae96f29f0n.exe	42
PID 696 wrote to memory of 2944	696	0a3166cfc6d771412517fd2ae96f29f0n.exe	42
PID 696 wrote to memory of 2944	696	0a3166cfc6d771412517fd2ae96f29f0n.exe	42
PID 2020 wrote to memory of 2276	2020	svchost.exe	43
PID 2020 wrote to memory of 2276	2020	svchost.exe	43
PID 2020 wrote to memory of 2276	2020	svchost.exe	43
PID 2020 wrote to memory of 2276	2020	svchost.exe	43

C:\Users\Admin\AppData\Local\Temp\0a3166cfc6d771412517fd2ae96f29f0N.exe
"C:\Users\Admin\AppData\Local\Temp\0a3166cfc6d771412517fd2ae96f29f0N.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:2368
- \??\c:\users\admin\appdata\local\temp\0a3166cfc6d771412517fd2ae96f29f0n.exe
  c:\users\admin\appdata\local\temp\0a3166cfc6d771412517fd2ae96f29f0n.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:696
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 696 -s 988
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2944
- 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:1644
- - \??\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:388
  - - \??\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:2864
    - - \??\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:2020
      - \??\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:2832
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 00:32 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2736
      - C:\Windows\SysWOW64\schtasks.exe
        
        schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 00:33 /f
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:2276
  - - C:\Windows\Explorer.exe
      C:\Windows\Explorer.exe
      4⤵
      PID:1656

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\0a3166cfc6d771412517fd2ae96f29f0n.exe

Filesize
4.6MB

MD5
e4d6bc579bb1784abe102df50b454415

SHA1
fdebff4c0fd98b33c44e0b2c8cd372fedbd8ede1

SHA256
f7edb4846e02a8ae90e6020ab69431825d27d9924835a70066f8449635baab50

SHA512
d8a2775a17eb8b4bfa4f92bba2f5a7b187a8b7d8b1dab53bded056c4d071a2d5e47a45acb4c3c12b5bcdde34876f95b0ae04e3db554093d79f7ab740fe7907ce

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

Filesize
135KB

MD5
2a884a7590720160d49798aa3c16126a

SHA1
ab164f7dbe91ce8c8b2d9747f2ba1510337f99a7

SHA256
d857f3c568ae4bd53f3ac4ad9c563f6540abd183fa6d4af4f640c9bbf08bb992

SHA512
55aede0eb0a76c40ccce621eace52ec1310de683919d5918b45009e8cc356415586dd3499a0a12bfbf6858ee8c7449f10acb0bdf826b88035c194cf39ceeb67b

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

Filesize
135KB

MD5
b7b44d1c1561f42030e32f2c38664a0f

SHA1
38592dcd976e46d26dae56419f239bd5fbf487b5

SHA256
ebe48be77ba73d1f901dd793f4607dfbcad3e4618b83610edc512eabc2ea4761

SHA512
f85ad941df34f17a6fc4de49aaa3598b70cf78236783a495aa58bba15337cc6d5ff557ede82619bce4eb3fd6de728773ba36a0e4742de3b70f6226206d5e19fb

Download Submit
\Windows\Resources\spoolsv.exe

Filesize
135KB

MD5
5c10c82e64773abcff060a889f0e619b

SHA1
b80f64ae330fbef16c8abb8fdd7c15e63c8db033

SHA256
4494153520a42750ad9f0f3a8880a220f5e32e48966aa5e1e1c49f89a92ff933

SHA512
b552a42c63a864109f719b37aabe93195da9fa54ec913f6925e76f411a873df9c3e1280fbbe045cd356415c89e9e52bb4d56ef35b2445711f9d255d39e6760b9

Download Submit
\Windows\Resources\svchost.exe

Filesize
135KB

MD5
ff667df09e17da65ed9af3522c85e6be

SHA1
81e258ad2210d853e63e192a0cb8881c8fc0a8a7

SHA256
77a43e8fe05e68b72121486f948cb6e0e6170b1923c8ddee8c3a57bb33d582de

SHA512
7f3f5c6888bb9fd5d343c5f846317e89acbe49daff8a4cbc44fe93aaf65f184683d63d4462fcd9f46a7535fbbd61b9c33764b0101e181f56c022a95c5d76df90

Download Submit
memory/696-25-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/696-11-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/696-12-0x00000000002A0000-0x0000000000738000-memory.dmp

Filesize
4.6MB

Download
memory/696-67-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/1644-64-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/1644-28-0x0000000000310000-0x000000000032F000-memory.dmp

Filesize
124KB

Download
memory/1644-27-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2368-29-0x00000000003E0000-0x00000000003FF000-memory.dmp

Filesize
124KB

Download
memory/2368-0-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2368-65-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2832-62-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2864-43-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2864-63-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2864-52-0x00000000002A0000-0x00000000002BF000-memory.dmp

Filesize
124KB

Download