993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 11:34

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General

Target

993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe
Size

210KB
MD5

291a5411f970d817751a844d47b262d5
SHA1

7b11ae1b30785cdbd0912ae1e929d8649faf76d9
SHA256

993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9
SHA512

e231d1e528617354e7002fde5d1f6901b0b50ed19627c8c2ba5dc957638d04562a295a95a14b849b074a91101da6ada84e74739784d66343f8039d3d96f09458
SSDEEP

6144:9NS5VmS/+PRHgzKmHMyTTaPrPXa3rkO2E1eJ+p:9IaxgzKmRUs+Oe0

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
384	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\software\microsoft\windows\currentversion\run	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\run	svchost.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\b92de9a = "°:)\u0081\x14Z\u009d6í¯\x19¡•5É\u00adý\x19Ì;I\b\x02\x1aÉ\x18Pµ\t\x1fVƒ{\u00ad\u008d1\x1d¦êüÉ\x1eñÄB\x04¾õ\x16Ô¤ª\|¨yÄ\x01;óÐ¨Ï\x0e6¹a"	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings\MuiCache	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe
384	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe
Token: SeSecurityPrivilege	1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe
Token: SeSecurityPrivilege	384	svchost.exe
Token: SeSecurityPrivilege	384	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 384	1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe	82
PID 1612 wrote to memory of 384	1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe	82
PID 1612 wrote to memory of 384	1612	993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe	82

C:\Users\Admin\AppData\Local\Temp\993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe
"C:\Users\Admin\AppData\Local\Temp\993b896cd61b594ad9468ddc53a00b8b8ac855e7a0e49d65d1c100543c9525f9.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:384

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\apppatch\svchost.exe

Filesize
210KB

MD5
731844d4f2735c0298e86758477526f9

SHA1
2d93dd4187fbcaf5e6a4fbbd71e973b75816d410

SHA256
d22e942333e77d2cfcbdeeb3fc4b7b0d1be2f9a388cdaf2e8edeea044751dd1d

SHA512
4cbb1d82fe1d19cb6fb5101a7bb7606a9e24e1623aec0dabde4b3df8e485768aa1df9659b5bac08008e68f18331235e97439a4b00e6403c7d6232cafb5fbb15d

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

Filesize
210KB

MD5
731844d4f2735c0298e86758477526f9

SHA1
2d93dd4187fbcaf5e6a4fbbd71e973b75816d410

SHA256
d22e942333e77d2cfcbdeeb3fc4b7b0d1be2f9a388cdaf2e8edeea044751dd1d

SHA512
4cbb1d82fe1d19cb6fb5101a7bb7606a9e24e1623aec0dabde4b3df8e485768aa1df9659b5bac08008e68f18331235e97439a4b00e6403c7d6232cafb5fbb15d

Download Submit
memory/384-135-0x0000000000000000-mapping.dmp

Download
memory/384-138-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/384-141-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/384-142-0x00000000029C0000-0x0000000002A6A000-memory.dmp

Filesize
680KB

Download
memory/384-143-0x0000000002BB0000-0x0000000002C67000-memory.dmp

Filesize
732KB

Download
memory/1612-132-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/1612-133-0x0000000002250000-0x00000000022A2000-memory.dmp

Filesize
328KB

Download
memory/1612-134-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/1612-139-0x0000000002250000-0x00000000022A2000-memory.dmp

Filesize
328KB

Download
memory/1612-140-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download