mimikatz | edb1ff2521fb4bf748111f92786d260d40407a2e8463dcd24bb09f908ee13eb9

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
12-07-2023 03:57

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General

Target

OlympicDestroyer.exe
Size

1.8MB
MD5

cfdd16225e67471f5ef54cab9b3a5558
SHA1

26de43cc558a4e0e60eddd4dc9321bcb5a0a181c
SHA256

edb1ff2521fb4bf748111f92786d260d40407a2e8463dcd24bb09f908ee13eb9
SHA512

e1855a872f4db7c17eb22130d9cb205eddde641f1b39ea5de97dfb762fc97dc2347bc6e6e88b9c5a303e1540b4b4bdb19c839c7d3e237348adbfa4b942f24adb
SSDEEP

49152:R9dnjRSnRMWHrVDoqNcVhcAwARGcWRrLy3pNq:3dVSRMUrVDEVHLRGdRrLy5N

Score

10^/10

mimikatz discovery evasion ransomware spyware stealer

Malware Config

Signatures

Mimikatz
mimikatz is an open source tool to dump credentials on Windows.
mimikatz

Clears Windows event logs 1 TTPs 2 IoCs

evasion ransomware

Indicator Removal on Host

T1070

pid	Process
4468	wevtutil.exe
260	wevtutil.exe

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

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
636	bcdedit.exe
1932	bcdedit.exe

mimikatz is an open source tool to dump credentials on Windows 1 IoCs

resource	yara_rule
behavioral2/memory/5004-150-0x0000000180000000-0x000000018002B000-memory.dmp	mimikatz

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command-Line Interface

T1059

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
980	wbadmin.exe

Executes dropped EXE 3 IoCs

pid	Process
4072	bvcsm.exe
5004	djumn.exe
3524	_sfv.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.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

pid	Process
2636	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5004	djumn.exe
5004	djumn.exe
5004	djumn.exe
5004	djumn.exe
5004	djumn.exe
5004	djumn.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1276	OlympicDestroyer.exe
Token: SeSecurityPrivilege	1276	OlympicDestroyer.exe
Token: SeTakeOwnershipPrivilege	1276	OlympicDestroyer.exe
Token: SeLoadDriverPrivilege	1276	OlympicDestroyer.exe
Token: SeSystemProfilePrivilege	1276	OlympicDestroyer.exe
Token: SeSystemtimePrivilege	1276	OlympicDestroyer.exe
Token: SeProfSingleProcessPrivilege	1276	OlympicDestroyer.exe
Token: SeIncBasePriorityPrivilege	1276	OlympicDestroyer.exe
Token: SeCreatePagefilePrivilege	1276	OlympicDestroyer.exe
Token: SeBackupPrivilege	1276	OlympicDestroyer.exe
Token: SeRestorePrivilege	1276	OlympicDestroyer.exe
Token: SeShutdownPrivilege	1276	OlympicDestroyer.exe
Token: SeDebugPrivilege	1276	OlympicDestroyer.exe
Token: SeSystemEnvironmentPrivilege	1276	OlympicDestroyer.exe
Token: SeRemoteShutdownPrivilege	1276	OlympicDestroyer.exe
Token: SeUndockPrivilege	1276	OlympicDestroyer.exe
Token: SeManageVolumePrivilege	1276	OlympicDestroyer.exe
Token: 33	1276	OlympicDestroyer.exe
Token: 34	1276	OlympicDestroyer.exe
Token: 35	1276	OlympicDestroyer.exe
Token: 36	1276	OlympicDestroyer.exe
Token: SeDebugPrivilege	5004	djumn.exe
Token: SeShutdownPrivilege	3524	_sfv.exe
Token: SeBackupPrivilege	3000	vssvc.exe
Token: SeRestorePrivilege	3000	vssvc.exe
Token: SeAuditPrivilege	3000	vssvc.exe
Token: SeBackupPrivilege	1016	wbengine.exe
Token: SeRestorePrivilege	1016	wbengine.exe
Token: SeSecurityPrivilege	1016	wbengine.exe
Token: SeSecurityPrivilege	4468	wevtutil.exe
Token: SeBackupPrivilege	4468	wevtutil.exe
Token: SeSecurityPrivilege	260	wevtutil.exe
Token: SeBackupPrivilege	260	wevtutil.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 4072	1276	OlympicDestroyer.exe	86
PID 1276 wrote to memory of 4072	1276	OlympicDestroyer.exe	86
PID 1276 wrote to memory of 4072	1276	OlympicDestroyer.exe	86
PID 1276 wrote to memory of 5004	1276	OlympicDestroyer.exe	87
PID 1276 wrote to memory of 5004	1276	OlympicDestroyer.exe	87
PID 1276 wrote to memory of 3524	1276	OlympicDestroyer.exe	88
PID 1276 wrote to memory of 3524	1276	OlympicDestroyer.exe	88
PID 1276 wrote to memory of 3524	1276	OlympicDestroyer.exe	88
PID 3524 wrote to memory of 3036	3524	_sfv.exe	89
PID 3524 wrote to memory of 3036	3524	_sfv.exe	89
PID 3036 wrote to memory of 2636	3036	cmd.exe	91
PID 3036 wrote to memory of 2636	3036	cmd.exe	91
PID 3524 wrote to memory of 3952	3524	_sfv.exe	94
PID 3524 wrote to memory of 3952	3524	_sfv.exe	94
PID 3952 wrote to memory of 980	3952	cmd.exe	96
PID 3952 wrote to memory of 980	3952	cmd.exe	96
PID 3524 wrote to memory of 3096	3524	_sfv.exe	100
PID 3524 wrote to memory of 3096	3524	_sfv.exe	100
PID 3096 wrote to memory of 636	3096	cmd.exe	102
PID 3096 wrote to memory of 636	3096	cmd.exe	102
PID 3096 wrote to memory of 1932	3096	cmd.exe	103
PID 3096 wrote to memory of 1932	3096	cmd.exe	103
PID 3524 wrote to memory of 2596	3524	_sfv.exe	104
PID 3524 wrote to memory of 2596	3524	_sfv.exe	104
PID 2596 wrote to memory of 4468	2596	cmd.exe	106
PID 2596 wrote to memory of 4468	2596	cmd.exe	106
PID 3524 wrote to memory of 2808	3524	_sfv.exe	107
PID 3524 wrote to memory of 2808	3524	_sfv.exe	107
PID 2808 wrote to memory of 260	2808	cmd.exe	109
PID 2808 wrote to memory of 260	2808	cmd.exe	109

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
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\OlympicDestroyer.exe
"C:\Users\Admin\AppData\Local\Temp\OlympicDestroyer.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\bvcsm.exe
  123 \\.\pipe\A5698C4D-44D1-4D02-9EA4-75B20272FE74
  2⤵
  - Executes dropped EXE
  PID:4072
- C:\Users\Admin\AppData\Local\Temp\djumn.exe
  123 \\.\pipe\A5C145AD-A612-4CB6-9284-DC8A2B7AA55B
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5004
- C:\Users\Admin\AppData\Local\Temp\_sfv.exe
  "C:\Users\Admin\AppData\Local\Temp\_sfv.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c c:\Windows\system32\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3036
  - - \??\c:\Windows\system32\vssadmin.exe
      c:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2636
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wbadmin.exe delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3952
  - - C:\Windows\system32\wbadmin.exe
      wbadmin.exe delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:980
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3096
  - - C:\Windows\system32\bcdedit.exe
      bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:636
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1932
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wevtutil.exe cl System
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2596
  - - C:\Windows\system32\wevtutil.exe
      wevtutil.exe cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:4468
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wevtutil.exe cl Security
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2808
  - - C:\Windows\system32\wevtutil.exe
      wevtutil.exe cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:260

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3000

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1016

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:4856

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Indicator Removal on Host

T1070

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_sfv.exe

Filesize
36KB

MD5
3c0d740347b0362331c882c2dee96dbf

SHA1
8350e06f52e5c660bb416b03edb6a5ddc50c3a59

SHA256
ae9a4e244a9b3c77d489dee8aeaf35a7c3ba31b210e76d81ef2e91790f052c85

SHA512
a701f94b9cdebce6eff2f82552ec7554bf10d99019f8bcd6871ebca804d7519bdcfa3806ac7c7d8e604c3259c61c58b905293fa641c092a8fca8245f91eb0f8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\_sfv.exe

Filesize
36KB

MD5
3c0d740347b0362331c882c2dee96dbf

SHA1
8350e06f52e5c660bb416b03edb6a5ddc50c3a59

SHA256
ae9a4e244a9b3c77d489dee8aeaf35a7c3ba31b210e76d81ef2e91790f052c85

SHA512
a701f94b9cdebce6eff2f82552ec7554bf10d99019f8bcd6871ebca804d7519bdcfa3806ac7c7d8e604c3259c61c58b905293fa641c092a8fca8245f91eb0f8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\bvcsm.exe

Filesize
751KB

MD5
4f43f03783f9789f804dcf9b9474fa6d

SHA1
492d4a4a74099074e26b5dffd0d15434009ccfd9

SHA256
19ab44a1343db19741b0e0b06bacce55990b6c8f789815daaf3476e0cc30ebea

SHA512
645c2f0a1342732b86a45403fb8b1343bcc18c015c9918d2edf118bbb210fead98aa21f1b66ac5faabd0542583d74e158fbac6d5f0d49827f4eeb58c8ebafd6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\bvcsm.exe

Filesize
751KB

MD5
4f43f03783f9789f804dcf9b9474fa6d

SHA1
492d4a4a74099074e26b5dffd0d15434009ccfd9

SHA256
19ab44a1343db19741b0e0b06bacce55990b6c8f789815daaf3476e0cc30ebea

SHA512
645c2f0a1342732b86a45403fb8b1343bcc18c015c9918d2edf118bbb210fead98aa21f1b66ac5faabd0542583d74e158fbac6d5f0d49827f4eeb58c8ebafd6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\djumn.exe

Filesize
277KB

MD5
d9c37b937ffde812ae15de885913e101

SHA1
ed1cd9e086923797fe2e5fe8ff19685bd2a40072

SHA256
f188abc33d351c2254d794b525c5a8b79ea78acd3050cd8d27d3ecfc568c2936

SHA512
164f45f3f8336ab450e119c716c30168c8115d5bdac7d220ea6f98a6889eee045092d163e54c2851a378a5d4877e913a342333c8bd0ab5615e34c40ca75e2877

Download Submit
C:\Users\Admin\AppData\Local\Temp\djumn.exe

Filesize
277KB

MD5
d9c37b937ffde812ae15de885913e101

SHA1
ed1cd9e086923797fe2e5fe8ff19685bd2a40072

SHA256
f188abc33d351c2254d794b525c5a8b79ea78acd3050cd8d27d3ecfc568c2936

SHA512
164f45f3f8336ab450e119c716c30168c8115d5bdac7d220ea6f98a6889eee045092d163e54c2851a378a5d4877e913a342333c8bd0ab5615e34c40ca75e2877

Download Submit
memory/4072-137-0x0000000010000000-0x00000000100AA000-memory.dmp

Filesize
680KB

Download
memory/5004-150-0x0000000180000000-0x000000018002B000-memory.dmp

Filesize
172KB

Download