669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222

Analysis

max time kernel
94s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05/11/2022, 15:23

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General

Target

669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe
Size

5.7MB
MD5

b4e81111384a84c6058b78731a499c20
SHA1

6d1c6b43f1875934131a04858f6186786e7b09a5
SHA256

669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222
SHA512

deaf0d3923e32b18cfad1ba0bc91e08023359c59c37a6d4ae8168613069d1729e7c31c2cbb0dc96914f994c553dc2ffe8ba5a4d8ea55034fd872cc3b53cb104a
SSDEEP

98304:1tbG7pEfNMhG4D+IvOjO5wDE3b6JK7PJoAMPW/TA3cldT04S6WBPbX:uFEfmhB+8OSOkoKgQ7SfVbX

Score

8^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4380	360Inst.exe

Loads dropped DLL 2 IoCs

pid	Process
4380	360Inst.exe
4380	360Inst.exe

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	360Inst.exe
File opened for modification	\??\PHYSICALDRIVE0	360Inst.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\360\360Safe\{E259E93D-FC4A-4540-9A91-79FB5198FB24}.tf	360Inst.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4380	360Inst.exe
4380	360Inst.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	4380	360Inst.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4380	360Inst.exe
4380	360Inst.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4380	360Inst.exe
4380	360Inst.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2300	669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe
2300	669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe
4380	360Inst.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 4380	2300	669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe	84
PID 2300 wrote to memory of 4380	2300	669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe	84
PID 2300 wrote to memory of 4380	2300	669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe	84

C:\Users\Admin\AppData\Local\Temp\669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe
"C:\Users\Admin\AppData\Local\Temp\669f184820626fbf34c048c287e64777d491dfb77c0928810dc8b77a7fe79222.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2300
- \??\c:\ProgramData\Google\Chrome\plugin\360Inst.exe
  c:\ProgramData\Google\Chrome\plugin\360Inst.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Writes to the Master Boot Record (MBR)
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:4380

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Google\Chrome\plugin\360Inst.exe

Filesize
3.2MB

MD5
b30ffbae10e09eb89168492c36168df4

SHA1
58bccd16683de888521b1bc9ed9a3e9057dbc041

SHA256
5ceb73923d43cc825cc116fc01690e3ada5df3843c9c230eb0b44a683be351a2

SHA512
0d3c16114add451d438b8d1fe2fb8b456b6eaab9c49353790db71edfccadf122e4a71c767db26e65444d9116e676936a3d118f900ff9d3878c340fb6181da48d

Download Submit
C:\Users\Admin\AppData\Local\Temp\{1A72BD7F-DA9E-4164-B3D8-F90DEF669796}.tmp\360P2SP.dll

Filesize
688KB

MD5
d875875eb3282b692ab10e946ea22361

SHA1
34bcef8a8cb0e1db44671892ac3cbd74d3c541a8

SHA256
0eca2e140f973b2011c633d4d92e512a1f77e1da610cfe0f4538c0b451270016

SHA512
972466310d3c145141320584b5f3e431c6888bda2ba1036f85e68e534ed6fb97ba04cbd46d8d9c401dc5857100dc1bff1bad82b50514f3e5c582522f22fd2b5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\{A44B7723-4283-41b8-B9C0-6B1983C61382}.tmp\sites.dll

Filesize
1.4MB

MD5
a2ff2c72e739e0cf4c73b623444ca39d

SHA1
ff886e63c894a20f30c136a8264cfa33d41b8331

SHA256
c1eb83993c85e01ee6ae84eb6e05744ff8c3ccc02c41d09c22286e3012ef46fc

SHA512
844dab35a1625d5bf1bd814a36fb80d5670d3dfee5cf65ad8be53784b486dcc08898b7577a323c7c7e1e83655f861ea86c5453cfa4c3d55353d329ef3af6320b

Download Submit
\??\c:\ProgramData\Google\Chrome\plugin\360Inst.exe

Filesize
3.2MB

MD5
b30ffbae10e09eb89168492c36168df4

SHA1
58bccd16683de888521b1bc9ed9a3e9057dbc041

SHA256
5ceb73923d43cc825cc116fc01690e3ada5df3843c9c230eb0b44a683be351a2

SHA512
0d3c16114add451d438b8d1fe2fb8b456b6eaab9c49353790db71edfccadf122e4a71c767db26e65444d9116e676936a3d118f900ff9d3878c340fb6181da48d

Download Submit