a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67

General

Target

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Size

88KB
MD5

5351b27edbb6bbf53a203b6f6e82c259
SHA1

0f67890e0cb30eb06a27746a5e0825275c8376b0
SHA256

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67
SHA512

2973bfaedfb480bce2b9f14e3ae3e517d7d38330c672f1dc2a8c65a75af6dc0c3ccb6eee3047d828a300121590ace0672c4c057bd318b78100394ea254d8acb3
SSDEEP

1536:JzIbMeD0MjCC45sBTHzzCaPZlJd9KvhY+wdb:JzIbMeykvdPpdc4

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

756 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1708 taskkill.exe

pid	process
756	cmd.exe

pid	process
1708	taskkill.exe

Modifies registry class 11 IoCs

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\shell\open	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\shell\open\command\ = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE "	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\DefaultIcon\ = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE,0"	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.IE	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IE	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\NeverShowExt = "1"	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\shell	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\shell\open\command	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\DefaultIcon	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.IE\ = "IE"	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IE\ = "????"	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

892 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

pid process

1264 a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

pid	process
892	PING.EXE

pid	process
1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Token: SeDebugPrivilege	1708	taskkill.exe
Token: SeDebugPrivilege	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Token: SeDebugPrivilege	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Token: SeDebugPrivilege	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
Token: SeDebugPrivilege	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

pid process

1264 a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

pid	process
1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.execmd.exe

description	pid	process	target process
PID 1264 wrote to memory of 1708	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	taskkill.exe
PID 1264 wrote to memory of 1708	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	taskkill.exe
PID 1264 wrote to memory of 1708	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	taskkill.exe
PID 1264 wrote to memory of 1708	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	taskkill.exe
PID 1264 wrote to memory of 756	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	cmd.exe
PID 1264 wrote to memory of 756	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	cmd.exe
PID 1264 wrote to memory of 756	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	cmd.exe
PID 1264 wrote to memory of 756	1264	a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe	cmd.exe
PID 756 wrote to memory of 892	756	cmd.exe	PING.EXE
PID 756 wrote to memory of 892	756	cmd.exe	PING.EXE
PID 756 wrote to memory of 892	756	cmd.exe	PING.EXE
PID 756 wrote to memory of 892	756	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe
"C:\Users\Admin\AppData\Local\Temp\a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1264

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im ZhuDongFangyu.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1708

C:\Windows\SysWOW64\cmd.exe
cmd /c ping 127.0.0.1 -n 1 && del "C:\Users\Admin\AppData\Local\Temp\a8c1a65d0bc90e59d2cece467987d91c43e76d483184a2f9ffd8f26a8499cc67.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:756

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 1
3⤵
- Runs ping.exe
PID:892

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/756-58-0x0000000000000000-mapping.dmp

Download
memory/892-60-0x0000000000000000-mapping.dmp

Download
memory/1264-57-0x0000000074E01000-0x0000000074E03000-memory.dmp

Filesize
8KB

Download
memory/1264-59-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1708-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads