d53f259612e67e72889a97f32e6ac4899e9dacc629cd2da0e89714938e000255

Analysis

max time kernel
117s
max time network
120s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
22/09/2023, 22:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

sysran-uninstaller.exe
Size

14KB
MD5

0ae3f7173c12426eb46648e16973c0cc
SHA1

e6f564a0550cb9e8379419b27d19e2679d589920
SHA256

d53f259612e67e72889a97f32e6ac4899e9dacc629cd2da0e89714938e000255
SHA512

b1e8084487510aab47726ea08f2e7e8fadedd320926a4c4420a4f8c50876c8e231da05f9f690183487b983139a2c1236535f5eba308b90a170b2ccfa24409a78
SSDEEP

384:cIDtF5/TAFI2Dn2FoeU5X9BfgJn3vLcA0:JBAXroEt91ghX0

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	sysran-uninstaller.exe

Launches sc.exe 5 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2632	sc.exe
1724	sc.exe
2608	sc.exe
2660	sc.exe
2824	sc.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2364	sysran-uninstaller.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	sysran-uninstaller.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 840	2364	sysran-uninstaller.exe	28
PID 2364 wrote to memory of 840	2364	sysran-uninstaller.exe	28
PID 2364 wrote to memory of 840	2364	sysran-uninstaller.exe	28
PID 2364 wrote to memory of 2020	2364	sysran-uninstaller.exe	30
PID 2364 wrote to memory of 2020	2364	sysran-uninstaller.exe	30
PID 2364 wrote to memory of 2020	2364	sysran-uninstaller.exe	30
PID 2020 wrote to memory of 2704	2020	cmd.exe	32
PID 2020 wrote to memory of 2704	2020	cmd.exe	32
PID 2020 wrote to memory of 2704	2020	cmd.exe	32
PID 840 wrote to memory of 2700	840	cmd.exe	33
PID 840 wrote to memory of 2700	840	cmd.exe	33
PID 840 wrote to memory of 2700	840	cmd.exe	33
PID 2364 wrote to memory of 2648	2364	sysran-uninstaller.exe	34
PID 2364 wrote to memory of 2648	2364	sysran-uninstaller.exe	34
PID 2364 wrote to memory of 2648	2364	sysran-uninstaller.exe	34
PID 2648 wrote to memory of 2744	2648	cmd.exe	36
PID 2648 wrote to memory of 2744	2648	cmd.exe	36
PID 2648 wrote to memory of 2744	2648	cmd.exe	36
PID 2648 wrote to memory of 2728	2648	cmd.exe	37
PID 2648 wrote to memory of 2728	2648	cmd.exe	37
PID 2648 wrote to memory of 2728	2648	cmd.exe	37
PID 2648 wrote to memory of 2732	2648	cmd.exe	38
PID 2648 wrote to memory of 2732	2648	cmd.exe	38
PID 2648 wrote to memory of 2732	2648	cmd.exe	38
PID 2648 wrote to memory of 2500	2648	cmd.exe	39
PID 2648 wrote to memory of 2500	2648	cmd.exe	39
PID 2648 wrote to memory of 2500	2648	cmd.exe	39
PID 2648 wrote to memory of 1288	2648	cmd.exe	40
PID 2648 wrote to memory of 1288	2648	cmd.exe	40
PID 2648 wrote to memory of 1288	2648	cmd.exe	40
PID 2648 wrote to memory of 2960	2648	cmd.exe	41
PID 2648 wrote to memory of 2960	2648	cmd.exe	41
PID 2648 wrote to memory of 2960	2648	cmd.exe	41
PID 2648 wrote to memory of 2612	2648	cmd.exe	42
PID 2648 wrote to memory of 2612	2648	cmd.exe	42
PID 2648 wrote to memory of 2612	2648	cmd.exe	42
PID 2648 wrote to memory of 2788	2648	cmd.exe	43
PID 2648 wrote to memory of 2788	2648	cmd.exe	43
PID 2648 wrote to memory of 2788	2648	cmd.exe	43
PID 2648 wrote to memory of 2520	2648	cmd.exe	45
PID 2648 wrote to memory of 2520	2648	cmd.exe	45
PID 2648 wrote to memory of 2520	2648	cmd.exe	45
PID 2648 wrote to memory of 2940	2648	cmd.exe	44
PID 2648 wrote to memory of 2940	2648	cmd.exe	44
PID 2648 wrote to memory of 2940	2648	cmd.exe	44
PID 2648 wrote to memory of 2824	2648	cmd.exe	46
PID 2648 wrote to memory of 2824	2648	cmd.exe	46
PID 2648 wrote to memory of 2824	2648	cmd.exe	46
PID 2648 wrote to memory of 1724	2648	cmd.exe	48
PID 2648 wrote to memory of 1724	2648	cmd.exe	48
PID 2648 wrote to memory of 1724	2648	cmd.exe	48
PID 2648 wrote to memory of 2632	2648	cmd.exe	47
PID 2648 wrote to memory of 2632	2648	cmd.exe	47
PID 2648 wrote to memory of 2632	2648	cmd.exe	47
PID 2648 wrote to memory of 2660	2648	cmd.exe	50
PID 2648 wrote to memory of 2660	2648	cmd.exe	50
PID 2648 wrote to memory of 2660	2648	cmd.exe	50
PID 2648 wrote to memory of 2608	2648	cmd.exe	49
PID 2648 wrote to memory of 2608	2648	cmd.exe	49
PID 2648 wrote to memory of 2608	2648	cmd.exe	49

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\sysran-uninstaller.exe
"C:\Users\Admin\AppData\Local\Temp\sysran-uninstaller.exe"
1⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:840
- - C:\Windows\system32\reg.exe
    reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /f
    3⤵
    PID:2700
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "GoogleUpdateTaskMachineQC"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2020
- - C:\Windows\system32\schtasks.exe
    schtasks /delete /f /tn "GoogleUpdateTaskMachineQC"
    3⤵
    PID:2704
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg copy "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /s /f & reg copy "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /s /f & reg copy "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /s /f & reg copy "HKLM\SYSTEM\CurrentControlSet\Services\BITS_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\BITS" /s /f & reg copy "HKLM\SYSTEM\CurrentControlSet\Services\dosvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /s /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc_bkp" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc_bkp" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv_bkp" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\BITS_bkp" /f & reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc_bkp" /f & sc start UsoSvc & sc start WaaSMedicSvc & sc start wuauserv & sc start bits & sc start dosvc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\system32\reg.exe
    reg copy "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc" /s /f
    3⤵
    PID:2744
- - C:\Windows\system32\reg.exe
    reg copy "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc" /s /f
    3⤵
    PID:2728
- - C:\Windows\system32\reg.exe
    reg copy "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv" /s /f
    3⤵
    PID:2732
- - C:\Windows\system32\reg.exe
    reg copy "HKLM\SYSTEM\CurrentControlSet\Services\BITS_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\BITS" /s /f
    3⤵
    PID:2500
- - C:\Windows\system32\reg.exe
    reg copy "HKLM\SYSTEM\CurrentControlSet\Services\dosvc_bkp" "HKLM\SYSTEM\CurrentControlSet\Services\dosvc" /s /f
    3⤵
    PID:1288
- - C:\Windows\system32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc_bkp" /f
    3⤵
    PID:2960
- - C:\Windows\system32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc_bkp" /f
    3⤵
    PID:2612
- - C:\Windows\system32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\wuauserv_bkp" /f
    3⤵
    PID:2788
- - C:\Windows\system32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\dosvc_bkp" /f
    3⤵
    PID:2940
- - C:\Windows\system32\reg.exe
    reg delete "HKLM\SYSTEM\CurrentControlSet\Services\BITS_bkp" /f
    3⤵
    PID:2520
- - C:\Windows\system32\sc.exe
    sc start UsoSvc
    3⤵
    - Launches sc.exe
    PID:2824
- - C:\Windows\system32\sc.exe
    sc start wuauserv
    3⤵
    - Launches sc.exe
    PID:2632
- - C:\Windows\system32\sc.exe
    sc start WaaSMedicSvc
    3⤵
    - Launches sc.exe
    PID:1724
- - C:\Windows\system32\sc.exe
    sc start dosvc
    3⤵
    - Launches sc.exe
    PID:2608
- - C:\Windows\system32\sc.exe
    sc start bits
    3⤵
    - Launches sc.exe
    PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2364-0-0x000000013F350000-0x000000013F358000-memory.dmp

Filesize
32KB

Download
memory/2364-1-0x000007FEF5C10000-0x000007FEF65FC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-2-0x0000000002230000-0x00000000022B0000-memory.dmp

Filesize
512KB

Download
memory/2364-4-0x000007FEF5C10000-0x000007FEF65FC000-memory.dmp

Filesize
9.9MB

Download