2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 20:16

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General

Target

2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
Size

2.6MB
MD5

97ed9515c06e15d615efdaaa7cd15cf9
SHA1

29cfb415b9b439aab5e6e50b182cd77e217c79c0
SHA256

2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990
SHA512

4f4cb3b790cffe7b445cacb8ddaee7c044f4ba37f9b678dae93b5caea42e4e1b25330c1662f470ab236ce786ce11b3fac3c4b717462b946cf7ddf6db771f71ef
SSDEEP

49152:TeS12nRc6C5CEAHD26ICQVt1ULUQRP6a6YPkCLJ37xbIjNyX5Hxzl/J:6S+c6ZEmqCMtmoQRP6aZtnsNq9l/J

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	explorer.exe

Executes dropped EXE 4 IoCs

pid	Process
3800	explorer.exe
2576	spoolsv.exe
1028	svchost.exe
4628	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"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\resources\\themes\\explorer.exe RO"	explorer.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

Suspicious use of NtSetInformationThreadHideFromDebugger 35 IoCs

pid	Process
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
3800	explorer.exe
2576	spoolsv.exe
1028	svchost.exe
4628	spoolsv.exe
4628	spoolsv.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe
1028	svchost.exe
3800	explorer.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\windows\resources\themes\explorer.exe	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.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 5 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	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.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
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
3800	explorer.exe
1028	svchost.exe

Suspicious use of SetWindowsHookEx 15 IoCs

pid	Process
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
3800	explorer.exe
3800	explorer.exe
3800	explorer.exe
2576	spoolsv.exe
2576	spoolsv.exe
2576	spoolsv.exe
1028	svchost.exe
1028	svchost.exe
1028	svchost.exe
4628	spoolsv.exe
4628	spoolsv.exe
4628	spoolsv.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 3800	4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe	85
PID 4276 wrote to memory of 3800	4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe	85
PID 4276 wrote to memory of 3800	4276	2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe	85
PID 3800 wrote to memory of 2576	3800	explorer.exe	86
PID 3800 wrote to memory of 2576	3800	explorer.exe	86
PID 3800 wrote to memory of 2576	3800	explorer.exe	86
PID 2576 wrote to memory of 1028	2576	spoolsv.exe	88
PID 2576 wrote to memory of 1028	2576	spoolsv.exe	88
PID 2576 wrote to memory of 1028	2576	spoolsv.exe	88
PID 1028 wrote to memory of 4628	1028	svchost.exe	89
PID 1028 wrote to memory of 4628	1028	svchost.exe	89
PID 1028 wrote to memory of 4628	1028	svchost.exe	89

C:\Users\Admin\AppData\Local\Temp\2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe
"C:\Users\Admin\AppData\Local\Temp\2ca192ab34f7f0895d97fa9d3e16cc3f500572191c8305ef7ab3c79e98fd7990.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4276
- \??\c:\windows\resources\themes\explorer.exe
  c:\windows\resources\themes\explorer.exe
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - 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:3800
- - \??\c:\windows\resources\spoolsv.exe
    c:\windows\resources\spoolsv.exe SE
    3⤵
    - Executes dropped EXE
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2576
  - - \??\c:\windows\resources\svchost.exe
      c:\windows\resources\svchost.exe
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1028
    - - \??\c:\windows\resources\spoolsv.exe
        
        c:\windows\resources\spoolsv.exe PR
        5⤵
        Executes dropped EXE
        Suspicious use of NtSetInformationThreadHideFromDebugger
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4628

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:\Windows\Resources\Themes\explorer.exe

Filesize
2.6MB

MD5
6ab29b3de673ffe0f4b0b72c4dc1be30

SHA1
f81328b236ee582382d143f0fc972d5369f90c86

SHA256
ab4453747bd25436dcb043e14804a17df435fc3717a1d4e9fea2e18e102d572d

SHA512
7ebff53ca01ae3cd940dafb980ec95a421ddad51dd1ba3ceab5d9ed6ffaeffb1088f682b106b3d6a8776364514d070704fb3ad8c30c26ec2007c94e4a8871472

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

Filesize
2.6MB

MD5
5f0b0fbfa91ea7286881af9b3d3d3dce

SHA1
0cbc4b9025bbac631b48245a20a2df5f895916da

SHA256
d80950e2cd011bc7039fa8a5b31cd2fd74697cd3768f6f821e241e4f145799c2

SHA512
c46bf3cfab3126e5c8dbe82340137afc32f980101ec5385ac841372e712bd48ef7c0d75a7ac81d360423c40d5e5e917da9eaeaed266372d4d765b989a8b6d957

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

Filesize
2.6MB

MD5
cf3e568842d61fa94d6a21c8c8526d9e

SHA1
a1d076764dda8b090598e52b97ebc9ecda80916f

SHA256
177c768b8e0b45cccddd55316d4c7816fd7b3d28468edf55562b2c3ceaea1ec0

SHA512
72e69ad2615f37196fca900d8540a3f166b68c2089c4a5f037a3cc4c6e56a1102f9a65e3d50cd241e100b9166979a26bd4850b6dcc9cedee948b7c0c77757e72

Download Submit
memory/1028-70-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-66-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-74-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-56-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-52-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-76-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-30-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-54-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-68-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-72-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-58-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-64-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-50-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-62-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-60-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/1028-49-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/2576-45-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/2576-42-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/2576-21-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/2576-20-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-53-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-65-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-75-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-57-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-51-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-59-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-47-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/3800-61-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-46-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-63-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-73-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-55-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-10-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-67-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/3800-11-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/3800-69-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/4276-43-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/4276-44-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/4276-1-0x000000007FA70000-0x000000007FE41000-memory.dmp

Filesize
3.8MB

Download
memory/4276-0-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/4628-38-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download
memory/4628-39-0x0000000000400000-0x0000000000D51000-memory.dmp

Filesize
9.3MB

Download