c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e

General

Target

c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe
Size

267KB
MD5

4d39aeaf7e88ebd9c25b886db71cc776
SHA1

1c2aa785a49f4ec5fc0df68fce47d1e43140b59f
SHA256

c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e
SHA512

c2a498167f2aca5edf18a3eb29690e32c28cfd8d564ae28272b44ac9acaaa72b07967c5c3926efb7a7920a4f208382d39a1950e67daa6bfcbf63d8e6d5ea7ae6
SSDEEP

3072:D22DPzPAzp6f9PboTde136OjAS7Vglkq+yUzsKOUqE617AYUJvAOVuRLa3Cmfj6+:a2bESbKM6J4ilsyZiq1sAOVu4NHwjH7o

Score

9^/10

persistence 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
Drops startup file 1 IoCs

Processes:

explorer.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\92b5590.exe explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\92b5590.exe	explorer.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*2b559 = "C:\\92b5590\\92b5590.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\92b5590 = "C:\\Users\\Admin\\AppData\\Roaming\\92b5590.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*2b5590 = "C:\\Users\\Admin\\AppData\\Roaming\\92b5590.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\92b559 = "C:\\92b5590\\92b5590.exe"	explorer.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1500 vssadmin.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exeexplorer.exe

pid process

1720 c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe
1520 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1184 vssvc.exe
Token: SeRestorePrivilege 1184 vssvc.exe
Token: SeAuditPrivilege 1184 vssvc.exe

pid	process
1500	vssadmin.exe

pid	process
1720	c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe
1520	explorer.exe

description	pid	process
Token: SeBackupPrivilege	1184	vssvc.exe
Token: SeRestorePrivilege	1184	vssvc.exe
Token: SeAuditPrivilege	1184	vssvc.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exeexplorer.exe

description	pid	process	target process
PID 1720 wrote to memory of 1520	1720	c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe	explorer.exe
PID 1720 wrote to memory of 1520	1720	c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe	explorer.exe
PID 1720 wrote to memory of 1520	1720	c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe	explorer.exe
PID 1720 wrote to memory of 1520	1720	c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe	explorer.exe
PID 1520 wrote to memory of 1632	1520	explorer.exe	svchost.exe
PID 1520 wrote to memory of 1632	1520	explorer.exe	svchost.exe
PID 1520 wrote to memory of 1632	1520	explorer.exe	svchost.exe
PID 1520 wrote to memory of 1632	1520	explorer.exe	svchost.exe
PID 1520 wrote to memory of 1500	1520	explorer.exe	vssadmin.exe
PID 1520 wrote to memory of 1500	1520	explorer.exe	vssadmin.exe
PID 1520 wrote to memory of 1500	1520	explorer.exe	vssadmin.exe
PID 1520 wrote to memory of 1500	1520	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe
"C:\Users\Admin\AppData\Local\Temp\c2deff6218be4bb0352583511a17a52e715016b921a56f3f0166ff09d0b0e72e.exe"
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\syswow64\explorer.exe
"C:\Windows\syswow64\explorer.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\syswow64\svchost.exe
-k netsvcs
3⤵
PID:1632

C:\Windows\syswow64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
3⤵
- Interacts with shadow copies
PID:1500

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1184

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Replay Monitor

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Downloads

memory/1500-62-0x0000000000000000-mapping.dmp

Download
memory/1520-57-0x0000000000000000-mapping.dmp

Download
memory/1520-58-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1520-59-0x0000000074D41000-0x0000000074D43000-memory.dmp

Filesize
8KB

Download
memory/1520-60-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/1632-61-0x0000000000000000-mapping.dmp

Download
memory/1632-64-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/1632-65-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/1720-55-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1720-54-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

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