7e452d7c983e00271d5cedc1c74b2c5719196c26426384a14f3b5486b8344d05

Analysis

max time kernel
84s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 11:26

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General

Target

7e452d7c983e00271d5cedc1c74b2c5719196c26426384a14f3b5486b8344d05.dll
Size

118KB
MD5

0e118cb84d3b823b8db309915af7c650
SHA1

1e0d28c9da002699156a868294554f39b03e7622
SHA256

7e452d7c983e00271d5cedc1c74b2c5719196c26426384a14f3b5486b8344d05
SHA512

63b74f0af2b362336b160d25ad22c311f10e5dda5acd8809deb72fb7421fcf5f06c2faf86175da74d516bfcfc43e5f4578f83f4d70d3db8e2919af2c6714d8e2
SSDEEP

1536:uD8NU1i2/QA+SR6OS5BSnRMbEdZppGaXDT5EQO4/JbEdPo0Ad4dk16nEnKdXL4Zm:uANYTQYMt2RJvDT6QztEBsEkgEnKds0

Score

8^/10

persistence

Malware Config

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	5016	rundll32.exe
6	5016	rundll32.exe
8	5016	rundll32.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\YW555.sys\imagepath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\YW555.sys"	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3184	5016	WerFault.exe	80

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
5016	rundll32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	rundll32.exe
Token: SeTakeOwnershipPrivilege	5016	rundll32.exe
Token: SeImpersonatePrivilege	5016	rundll32.exe
Token: SeAssignPrimaryTokenPrivilege	5016	rundll32.exe
Token: SeLoadDriverPrivilege	5016	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 5016	3548	rundll32.exe	80
PID 3548 wrote to memory of 5016	3548	rundll32.exe	80
PID 3548 wrote to memory of 5016	3548	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e452d7c983e00271d5cedc1c74b2c5719196c26426384a14f3b5486b8344d05.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e452d7c983e00271d5cedc1c74b2c5719196c26426384a14f3b5486b8344d05.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Sets service image path in registry
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 1192
    3⤵
    - Program crash
    PID:3184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5016 -ip 5016
1⤵
PID:3668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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

memory/5016-133-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5016-134-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5016-135-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download