a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
119s
max time network
136s
platform
windows10_x64
resource
win10-en-20211208
submitted
15-12-2021 06:21

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General

Target

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
Size

79KB
MD5

e3dd1eb73e602ea95ad3e325d846d37c
SHA1

a0a4fb4a58f663d2ff12d6efac1b07b63eb03e28
SHA256

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879
SHA512

0bac92222143f699a5c01403b6aeefdc8b05fa73928186bee9e8a63d8f9da7486b5e4a5720bade9be17e884f8ef651e3f0bbb0c556b33e330f8788832d22a639

Score

9^/10

ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\GetOut.png => C:\Users\Admin\Pictures\GetOut.png.crypt	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened for modification	C:\Users\Admin\Pictures\GetOut.png.crypt	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File renamed	C:\Users\Admin\Pictures\MeasureEnter.raw => C:\Users\Admin\Pictures\MeasureEnter.raw.crypt	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened for modification	C:\Users\Admin\Pictures\MeasureEnter.raw.crypt	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

description	ioc	process
File opened (read-only)	\??\W:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\U:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\P:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\F:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\G:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\H:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\Z:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\Q:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\T:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\Y:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\I:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\B:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\M:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\X:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\N:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\E:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\S:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\J:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\L:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\V:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\R:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\O:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\A:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
File opened (read-only)	\??\K:	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exevssadmin.exe

pid process

3928 vssadmin.exe
1004 vssadmin.exe

pid	process
3928	vssadmin.exe
1004	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

pid	process
3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 3996 vssvc.exe
Token: SeRestorePrivilege 3996 vssvc.exe
Token: SeAuditPrivilege 3996 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	3996	vssvc.exe
Token: SeRestorePrivilege	3996	vssvc.exe
Token: SeAuditPrivilege	3996	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.execmd.execmd.exe

description	pid	process	target process
PID 3400 wrote to memory of 3048	3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe	cmd.exe
PID 3400 wrote to memory of 3048	3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe	cmd.exe
PID 3048 wrote to memory of 3928	3048	cmd.exe	vssadmin.exe
PID 3048 wrote to memory of 3928	3048	cmd.exe	vssadmin.exe
PID 3400 wrote to memory of 640	3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe	cmd.exe
PID 3400 wrote to memory of 640	3400	0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe	cmd.exe
PID 640 wrote to memory of 1004	640	cmd.exe	vssadmin.exe
PID 640 wrote to memory of 1004	640	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe
"C:\Users\Admin\AppData\Local\Temp\0099963e7285aeafc09e4214a45a6a210253d514cbd0d4b0c3997647a0afe879.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3048
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:3928
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\system32\vssadmin.exe
    vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1004

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

memory/640-120-0x0000000000000000-mapping.dmp

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memory/1004-121-0x0000000000000000-mapping.dmp

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memory/3048-118-0x0000000000000000-mapping.dmp

Download
memory/3928-119-0x0000000000000000-mapping.dmp

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