mimikatz | edb1ff2521fb4bf748111f92786d260d40407a2e8463dcd24bb09f908ee13eb9

Analysis

max time kernel
148s
max time network
157s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-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
2904	wevtutil.exe
2636	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
1132	bcdedit.exe
1540	bcdedit.exe

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

resource	yara_rule
behavioral1/memory/2368-72-0x0000000180000000-0x000000018002B000-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
1652	wbadmin.exe

Executes dropped EXE 3 IoCs

pid	Process
1572	empdm.exe
2368	ezpxh.exe
1500	_fmo.exe

Loads dropped DLL 3 IoCs

pid	Process
2272	OlympicDestroyer.exe
2272	OlympicDestroyer.exe
2272	OlympicDestroyer.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

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
2228	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2368	ezpxh.exe
2368	ezpxh.exe
2368	ezpxh.exe
2368	ezpxh.exe
2368	ezpxh.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2272	OlympicDestroyer.exe
Token: SeSecurityPrivilege	2272	OlympicDestroyer.exe
Token: SeTakeOwnershipPrivilege	2272	OlympicDestroyer.exe
Token: SeLoadDriverPrivilege	2272	OlympicDestroyer.exe
Token: SeSystemProfilePrivilege	2272	OlympicDestroyer.exe
Token: SeSystemtimePrivilege	2272	OlympicDestroyer.exe
Token: SeProfSingleProcessPrivilege	2272	OlympicDestroyer.exe
Token: SeIncBasePriorityPrivilege	2272	OlympicDestroyer.exe
Token: SeCreatePagefilePrivilege	2272	OlympicDestroyer.exe
Token: SeBackupPrivilege	2272	OlympicDestroyer.exe
Token: SeRestorePrivilege	2272	OlympicDestroyer.exe
Token: SeShutdownPrivilege	2272	OlympicDestroyer.exe
Token: SeDebugPrivilege	2272	OlympicDestroyer.exe
Token: SeSystemEnvironmentPrivilege	2272	OlympicDestroyer.exe
Token: SeRemoteShutdownPrivilege	2272	OlympicDestroyer.exe
Token: SeUndockPrivilege	2272	OlympicDestroyer.exe
Token: SeManageVolumePrivilege	2272	OlympicDestroyer.exe
Token: 33	2272	OlympicDestroyer.exe
Token: 34	2272	OlympicDestroyer.exe
Token: 35	2272	OlympicDestroyer.exe
Token: SeDebugPrivilege	2368	ezpxh.exe
Token: SeShutdownPrivilege	1500	_fmo.exe
Token: SeBackupPrivilege	2844	wbengine.exe
Token: SeRestorePrivilege	2844	wbengine.exe
Token: SeSecurityPrivilege	2844	wbengine.exe
Token: SeSecurityPrivilege	2904	wevtutil.exe
Token: SeBackupPrivilege	2904	wevtutil.exe
Token: SeSecurityPrivilege	2636	wevtutil.exe
Token: SeBackupPrivilege	2636	wevtutil.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 2272 wrote to memory of 1572	2272	OlympicDestroyer.exe	29
PID 2272 wrote to memory of 1572	2272	OlympicDestroyer.exe	29
PID 2272 wrote to memory of 1572	2272	OlympicDestroyer.exe	29
PID 2272 wrote to memory of 1572	2272	OlympicDestroyer.exe	29
PID 2272 wrote to memory of 2368	2272	OlympicDestroyer.exe	30
PID 2272 wrote to memory of 2368	2272	OlympicDestroyer.exe	30
PID 2272 wrote to memory of 2368	2272	OlympicDestroyer.exe	30
PID 2272 wrote to memory of 2368	2272	OlympicDestroyer.exe	30
PID 2272 wrote to memory of 1500	2272	OlympicDestroyer.exe	31
PID 2272 wrote to memory of 1500	2272	OlympicDestroyer.exe	31
PID 2272 wrote to memory of 1500	2272	OlympicDestroyer.exe	31
PID 2272 wrote to memory of 1500	2272	OlympicDestroyer.exe	31
PID 1500 wrote to memory of 3068	1500	_fmo.exe	32
PID 1500 wrote to memory of 3068	1500	_fmo.exe	32
PID 1500 wrote to memory of 3068	1500	_fmo.exe	32
PID 1500 wrote to memory of 3068	1500	_fmo.exe	32
PID 3068 wrote to memory of 2228	3068	cmd.exe	34
PID 3068 wrote to memory of 2228	3068	cmd.exe	34
PID 3068 wrote to memory of 2228	3068	cmd.exe	34
PID 1500 wrote to memory of 2548	1500	_fmo.exe	35
PID 1500 wrote to memory of 2548	1500	_fmo.exe	35
PID 1500 wrote to memory of 2548	1500	_fmo.exe	35
PID 1500 wrote to memory of 2548	1500	_fmo.exe	35
PID 2548 wrote to memory of 1652	2548	cmd.exe	37
PID 2548 wrote to memory of 1652	2548	cmd.exe	37
PID 2548 wrote to memory of 1652	2548	cmd.exe	37
PID 1500 wrote to memory of 2572	1500	_fmo.exe	41
PID 1500 wrote to memory of 2572	1500	_fmo.exe	41
PID 1500 wrote to memory of 2572	1500	_fmo.exe	41
PID 1500 wrote to memory of 2572	1500	_fmo.exe	41
PID 2572 wrote to memory of 1132	2572	cmd.exe	43
PID 2572 wrote to memory of 1132	2572	cmd.exe	43
PID 2572 wrote to memory of 1132	2572	cmd.exe	43
PID 2572 wrote to memory of 1540	2572	cmd.exe	44
PID 2572 wrote to memory of 1540	2572	cmd.exe	44
PID 2572 wrote to memory of 1540	2572	cmd.exe	44
PID 1500 wrote to memory of 2932	1500	_fmo.exe	45
PID 1500 wrote to memory of 2932	1500	_fmo.exe	45
PID 1500 wrote to memory of 2932	1500	_fmo.exe	45
PID 1500 wrote to memory of 2932	1500	_fmo.exe	45
PID 2932 wrote to memory of 2904	2932	cmd.exe	47
PID 2932 wrote to memory of 2904	2932	cmd.exe	47
PID 2932 wrote to memory of 2904	2932	cmd.exe	47
PID 1500 wrote to memory of 2508	1500	_fmo.exe	48
PID 1500 wrote to memory of 2508	1500	_fmo.exe	48
PID 1500 wrote to memory of 2508	1500	_fmo.exe	48
PID 1500 wrote to memory of 2508	1500	_fmo.exe	48
PID 2508 wrote to memory of 2636	2508	cmd.exe	50
PID 2508 wrote to memory of 2636	2508	cmd.exe	50
PID 2508 wrote to memory of 2636	2508	cmd.exe	50

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\OlympicDestroyer.exe
"C:\Users\Admin\AppData\Local\Temp\OlympicDestroyer.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272
- C:\Users\Admin\AppData\Local\Temp\empdm.exe
  123 \\.\pipe\ADF9E666-4CF5-47C8-80F4-A0171C458118
  2⤵
  - Executes dropped EXE
  PID:1572
- C:\Users\Admin\AppData\Local\Temp\ezpxh.exe
  123 \\.\pipe\0E528AF2-1EA2-4931-842B-1876ED3202D8
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2368
- C:\Users\Admin\AppData\Local\Temp\_fmo.exe
  "C:\Users\Admin\AppData\Local\Temp\_fmo.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1500
- - 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:3068
  - - \??\c:\Windows\system32\vssadmin.exe
      c:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2228
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wbadmin.exe delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2548
  - - C:\Windows\system32\wbadmin.exe
      wbadmin.exe delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1652
- - 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:2572
  - - C:\Windows\system32\bcdedit.exe
      bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1132
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1540
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wevtutil.exe cl System
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2932
  - - C:\Windows\system32\wevtutil.exe
      wevtutil.exe cl System
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:2904
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c wevtutil.exe cl Security
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2508
  - - C:\Windows\system32\wevtutil.exe
      wevtutil.exe cl Security
      4⤵
      Clears Windows event logs
      Suspicious use of AdjustPrivilegeToken
      PID:2636

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2844

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2360

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2720

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

Query Registry

T1012

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\_fmo.exe

Filesize
36KB

MD5
3c0d740347b0362331c882c2dee96dbf

SHA1
8350e06f52e5c660bb416b03edb6a5ddc50c3a59

SHA256
ae9a4e244a9b3c77d489dee8aeaf35a7c3ba31b210e76d81ef2e91790f052c85

SHA512
a701f94b9cdebce6eff2f82552ec7554bf10d99019f8bcd6871ebca804d7519bdcfa3806ac7c7d8e604c3259c61c58b905293fa641c092a8fca8245f91eb0f8f

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

Filesize
751KB

MD5
4f43f03783f9789f804dcf9b9474fa6d

SHA1
492d4a4a74099074e26b5dffd0d15434009ccfd9

SHA256
19ab44a1343db19741b0e0b06bacce55990b6c8f789815daaf3476e0cc30ebea

SHA512
645c2f0a1342732b86a45403fb8b1343bcc18c015c9918d2edf118bbb210fead98aa21f1b66ac5faabd0542583d74e158fbac6d5f0d49827f4eeb58c8ebafd6d

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

Filesize
277KB

MD5
d9c37b937ffde812ae15de885913e101

SHA1
ed1cd9e086923797fe2e5fe8ff19685bd2a40072

SHA256
f188abc33d351c2254d794b525c5a8b79ea78acd3050cd8d27d3ecfc568c2936

SHA512
164f45f3f8336ab450e119c716c30168c8115d5bdac7d220ea6f98a6889eee045092d163e54c2851a378a5d4877e913a342333c8bd0ab5615e34c40ca75e2877

Download Submit
\Users\Admin\AppData\Local\Temp\_fmo.exe

Filesize
36KB

MD5
3c0d740347b0362331c882c2dee96dbf

SHA1
8350e06f52e5c660bb416b03edb6a5ddc50c3a59

SHA256
ae9a4e244a9b3c77d489dee8aeaf35a7c3ba31b210e76d81ef2e91790f052c85

SHA512
a701f94b9cdebce6eff2f82552ec7554bf10d99019f8bcd6871ebca804d7519bdcfa3806ac7c7d8e604c3259c61c58b905293fa641c092a8fca8245f91eb0f8f

Download Submit
\Users\Admin\AppData\Local\Temp\empdm.exe

Filesize
751KB

MD5
4f43f03783f9789f804dcf9b9474fa6d

SHA1
492d4a4a74099074e26b5dffd0d15434009ccfd9

SHA256
19ab44a1343db19741b0e0b06bacce55990b6c8f789815daaf3476e0cc30ebea

SHA512
645c2f0a1342732b86a45403fb8b1343bcc18c015c9918d2edf118bbb210fead98aa21f1b66ac5faabd0542583d74e158fbac6d5f0d49827f4eeb58c8ebafd6d

Download Submit
\Users\Admin\AppData\Local\Temp\ezpxh.exe

Filesize
277KB

MD5
d9c37b937ffde812ae15de885913e101

SHA1
ed1cd9e086923797fe2e5fe8ff19685bd2a40072

SHA256
f188abc33d351c2254d794b525c5a8b79ea78acd3050cd8d27d3ecfc568c2936

SHA512
164f45f3f8336ab450e119c716c30168c8115d5bdac7d220ea6f98a6889eee045092d163e54c2851a378a5d4877e913a342333c8bd0ab5615e34c40ca75e2877

Download Submit
memory/1572-59-0x0000000010000000-0x00000000100AA000-memory.dmp

Filesize
680KB

Download
memory/2368-72-0x0000000180000000-0x000000018002B000-memory.dmp

Filesize
172KB

Download