0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 09:00

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General

Target

NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
Size

152KB
MD5

f84856546e0ad601f2ef415ef0b999f0
SHA1

c906cd37136361afb81b3858b7970944d7bafc14
SHA256

0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8
SHA512

b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214
SSDEEP

3072:vUH+V0+NW8X/iQavwa3HIHxVB5rVps3duhht3E:vNqT8XVCwaYR1xps3duhhu

Score

10^/10

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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	puocai.exe

Executes dropped EXE 2 IoCs

pid	Process
2528	puocai.exe
2588	puocai.exe

Loads dropped DLL 2 IoCs

pid	Process
3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe

Adds Run key to start application 2 TTPs 27 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /f"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /u"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /q"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /p"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /h"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /m"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /s"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /d"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /a"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /v"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /r"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /z"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /i"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /k"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /l"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /j"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /b"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /g"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /c"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /o"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /x"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /w"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /e"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /n"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /a"	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /y"	puocai.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\puocai = "C:\\Users\\Admin\\puocai.exe /t"	puocai.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	puocai.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	puocai.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe

Drops autorun.inf file 1 TTPs 1 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\Users\Admin\c\autorun.inf	puocai.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 2528 set thread context of 2588	2528	puocai.exe	30

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe
2588	puocai.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
2528	puocai.exe
2588	puocai.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 1752 wrote to memory of 3024	1752	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	28
PID 3024 wrote to memory of 2528	3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	29
PID 3024 wrote to memory of 2528	3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	29
PID 3024 wrote to memory of 2528	3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	29
PID 3024 wrote to memory of 2528	3024	NEAS.f84856546e0ad601f2ef415ef0b999f0.exe	29
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30
PID 2528 wrote to memory of 2588	2528	puocai.exe	30

C:\Users\Admin\AppData\Local\Temp\NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.f84856546e0ad601f2ef415ef0b999f0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\NEAS.f84856546e0ad601f2ef415ef0b999f0.exe
  74
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Loads dropped DLL
  - Adds Run key to start application
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Users\Admin\puocai.exe
    "C:\Users\Admin\puocai.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2528
  - - C:\Users\Admin\puocai.exe
      74
      4⤵
      Modifies visiblity of hidden/system files in Explorer
      Executes dropped EXE
      Adds Run key to start application
      Maps connected drives based on registry
      Drops autorun.inf file
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of SetWindowsHookEx
      PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\c\Porn.exe

Filesize
152KB

MD5
f42be75f61a84a03d1f9d2db5edbee6b

SHA1
391e0c343e313f74a84a71656d9cc4f7db6e3e5b

SHA256
8795bb34e23d39d840d4c542a3bd2c096fe25143a3cad3f142b812b4412a30cf

SHA512
919bb8705eaea5da13c65b05106a3935ef74ba5c92d5e3689ed6be9ea3a552ff362083d32b05c0b09fd208569b46f98f73e3f60e1eee7ac0ba7fce790071d05c

Download Submit
C:\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
C:\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
C:\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
C:\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
\Users\Admin\puocai.exe

Filesize
152KB

MD5
f84856546e0ad601f2ef415ef0b999f0

SHA1
c906cd37136361afb81b3858b7970944d7bafc14

SHA256
0530fcb8af9b78b9d41ea76309850cde033bc6f6b36b55fe571c3973a53739f8

SHA512
b481a2ad7297ee697f7a6c75cd5b443c37620db174f5aca8b3b5cf4239b230a49b8faa378473c3dd9ad776241243589b45869031f444708778afa85f70daf214

Download Submit
memory/2588-75-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-79-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-27-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-93-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-91-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-69-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-89-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-71-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-87-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-73-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-85-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-83-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-81-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2588-77-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-72-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-74-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-80-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-76-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-82-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-84-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-78-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-86-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-26-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-88-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-70-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-90-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3024-61-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

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memory/3024-92-0x0000000000400000-0x0000000000413000-memory.dmp

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76KB

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memory/3024-4-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

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