a3788d8cf37d691627bdbc5add07b598fdde66bdfcdb05299b0976715b392a61

Analysis

max time kernel
121s
max time network
138s
platform
windows10_x64
resource
win10-en-20211208
submitted
15-12-2021 06:21

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General

Target

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
Size

79KB
MD5

c7ec4e7022f26949ed39033616efe894
SHA1

0e4da1fa8b3bc8b2f410cfd7230b9fc70dc10670
SHA256

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3
SHA512

04976b2e50e5f7f7a067b0dc07072f22c607d8ae6c33b4ec4e65a851b71bef939725f29fdeaa7a943033a9aa6b5f9a09f1d029860a0dbd6184be768754982aff

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 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe

description	ioc	process
File renamed	C:\Users\Admin\Pictures\OutReset.crw => C:\Users\Admin\Pictures\OutReset.crw.doom	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened for modification	C:\Users\Admin\Pictures\OutReset.crw.doom	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.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:

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe

description	ioc	process
File opened (read-only)	\??\Y:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\F:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\L:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\I:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\O:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\P:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\G:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\H:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\Q:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\W:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\E:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\M:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\J:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\V:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\N:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\S:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\K:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\R:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\T:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\U:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\B:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\A:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\Z:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
File opened (read-only)	\??\X:	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.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

824 vssadmin.exe
2720 vssadmin.exe

pid	process
824	vssadmin.exe
2720	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe

pid	process
3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 2260 vssvc.exe
Token: SeRestorePrivilege 2260 vssvc.exe
Token: SeAuditPrivilege 2260 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	2260	vssvc.exe
Token: SeRestorePrivilege	2260	vssvc.exe
Token: SeAuditPrivilege	2260	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.execmd.execmd.exe

description	pid	process	target process
PID 3772 wrote to memory of 628	3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe	cmd.exe
PID 3772 wrote to memory of 628	3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe	cmd.exe
PID 628 wrote to memory of 824	628	cmd.exe	vssadmin.exe
PID 628 wrote to memory of 824	628	cmd.exe	vssadmin.exe
PID 3772 wrote to memory of 520	3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe	cmd.exe
PID 3772 wrote to memory of 520	3772	02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe	cmd.exe
PID 520 wrote to memory of 2720	520	cmd.exe	vssadmin.exe
PID 520 wrote to memory of 2720	520	cmd.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe
"C:\Users\Admin\AppData\Local\Temp\02e9883501635da9b501e715bb827a0b9d0c265991f1263f073eb6c5d9b335c3.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3772

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:628

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:824

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
2⤵
- Suspicious use of WriteProcessMemory
PID:520

C:\Windows\system32\vssadmin.exe
vssadmin.exe delete shadows /all /quiet
3⤵
- Interacts with shadow copies
PID:2720

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2260

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/520-117-0x0000000000000000-mapping.dmp

Download
memory/628-115-0x0000000000000000-mapping.dmp

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memory/824-116-0x0000000000000000-mapping.dmp

Download
memory/2720-118-0x0000000000000000-mapping.dmp

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