ryuk | 3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

General

Target

3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
Size

191KB
MD5

aa8d5eec0c68de288fdd55a128e77e95
SHA1

496e01324adba5e4db50cb723cc0f4593dfdf6b3
SHA256

3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689
SHA512

86700f73ac9da32ff9c5e6ea249ff0dd362a11ca3fd5dd4730c3cc5ccbdc2893a288e4ad26c89dd30e33e841c43cd4cb55ee989efa9e2ecad947ab1a198a7fe2

Score

10^/10

ryuk ransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

Family

ryuk

Ransom Note

<html><body><p style="font-weight:bold;font-size:125%;top:0;left:0;"> [email protected] <br> </p><p style="position:absolute;bottom:0;right:1%;font-weight:bold;font-size:170%">balance of shadow universe</p><div style="font-size: 550%;font-weight:bold;width:50%;height:50%;overflow:auto;margin:auto;position:absolute;top:35%;left:40%;">Ryuk</div></body></html��

Emails

[email protected]

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

Family

ryuk

Ransom Note

[email protected] balance of shadow universe Ryuk

Emails

[email protected]

Signatures

Ryuk
Ransomware distributed via existing botnets, often Trickbot or Emotet.
ransomware ryuk
Executes dropped EXE 1 IoCs

Processes:

jcbKeBo.exe

pid process

788 jcbKeBo.exe

pid	process
788	jcbKeBo.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exejcbKeBo.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	jcbKeBo.exe

Drops file in Windows directory 3 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe

Modifies data under HKEY_USERS 49 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.500063"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "4.547179"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4328"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4120"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "2.325084"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132899995908541781"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100"	svchost.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exejcbKeBo.exe

pid	process
3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
788	jcbKeBo.exe
788	jcbKeBo.exe
3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe

Suspicious use of AdjustPrivilegeToken 20 IoCs

Processes:

TiWorker.exe3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exejcbKeBo.exe

description	pid	process
Token: SeSecurityPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
Token: SeBackupPrivilege	788	jcbKeBo.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeSecurityPrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeSecurityPrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeSecurityPrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeSecurityPrivilege	2412	TiWorker.exe
Token: SeBackupPrivilege	2412	TiWorker.exe
Token: SeRestorePrivilege	2412	TiWorker.exe
Token: SeSecurityPrivilege	2412	TiWorker.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exejcbKeBo.exenet.exenet.exenet.exenet.exenet.exenet.exe

description	pid	process	target process
PID 3800 wrote to memory of 788	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	jcbKeBo.exe
PID 3800 wrote to memory of 788	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	jcbKeBo.exe
PID 3800 wrote to memory of 788	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	jcbKeBo.exe
PID 3800 wrote to memory of 3352	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 3352	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 3352	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 2600	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 2600	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 2600	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 3356	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 3356	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 3356	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 788 wrote to memory of 2800	788	jcbKeBo.exe	net.exe
PID 788 wrote to memory of 2800	788	jcbKeBo.exe	net.exe
PID 788 wrote to memory of 2800	788	jcbKeBo.exe	net.exe
PID 3800 wrote to memory of 2396	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 2396	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 3800 wrote to memory of 2396	3800	3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe	net.exe
PID 788 wrote to memory of 2404	788	jcbKeBo.exe	net.exe
PID 788 wrote to memory of 2404	788	jcbKeBo.exe	net.exe
PID 788 wrote to memory of 2404	788	jcbKeBo.exe	net.exe
PID 2800 wrote to memory of 3372	2800	net.exe	net1.exe
PID 2800 wrote to memory of 3372	2800	net.exe	net1.exe
PID 2800 wrote to memory of 3372	2800	net.exe	net1.exe
PID 3352 wrote to memory of 2044	3352	net.exe	net1.exe
PID 3352 wrote to memory of 2044	3352	net.exe	net1.exe
PID 3352 wrote to memory of 2044	3352	net.exe	net1.exe
PID 2600 wrote to memory of 216	2600	net.exe	net1.exe
PID 2600 wrote to memory of 216	2600	net.exe	net1.exe
PID 2600 wrote to memory of 216	2600	net.exe	net1.exe
PID 2396 wrote to memory of 4044	2396	net.exe	net1.exe
PID 2396 wrote to memory of 4044	2396	net.exe	net1.exe
PID 2396 wrote to memory of 4044	2396	net.exe	net1.exe
PID 3356 wrote to memory of 1140	3356	net.exe	net1.exe
PID 3356 wrote to memory of 1140	3356	net.exe	net1.exe
PID 3356 wrote to memory of 1140	3356	net.exe	net1.exe
PID 2404 wrote to memory of 1888	2404	net.exe	net1.exe
PID 2404 wrote to memory of 1888	2404	net.exe	net1.exe
PID 2404 wrote to memory of 1888	2404	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe
"C:\Users\Admin\AppData\Local\Temp\3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3800
- C:\Users\Admin\AppData\Local\Temp\jcbKeBo.exe
  "C:\Users\Admin\AppData\Local\Temp\jcbKeBo.exe" 8 LAN
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:788
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2800
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop "audioendpointbuilder" /y
      4⤵
      PID:3372
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\System32\net.exe" stop "samss" /y
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop "samss" /y
      4⤵
      PID:1888
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "audioendpointbuilder" /y
    3⤵
    PID:2044
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "samss" /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2600
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "samss" /y
    3⤵
    PID:216
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3356
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "audioendpointbuilder" /y
    3⤵
    PID:1140
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "samss" /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop "samss" /y
    3⤵
    PID:4044

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3940

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:3040

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2412

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys\08e575673cce10c72090304839888e02_0d751396-3164-4736-b931-4f59d47ff1f2

MD5
93a5aadeec082ffc1bca5aa27af70f52

SHA1
47a92aee3ea4d1c1954ed4da9f86dd79d9277d31

SHA256
a1a21799e98f97f271657ce656076f33dcb020d9370f1f2671d783cafd230294

SHA512
df388c8d83e779e006d6311b2046fcf9259ec33d379fc0e2c6a4b6b90418f587a12c5c23acd488413a02568ca2d3effe04608ec7c791925c7ed53dc71093ca45

Download Submit
C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

MD5
c6b39645b1dbfb5cef7ff3a06eb45a5f

SHA1
582fc94349b00e518bbb5c706e7cc8adc75ecab6

SHA256
4962251e42282a3fd2b73dacc827a09cfae86f5474cd14ec59d39ed085b77206

SHA512
21471cd47aae47ca7c391a8fd4fab58824c7cf536ed037c7e88bf3b7d33a3df285c0860e21984234e38dea4021db77f5b3f6b571d4b2892cb4ef6ffc6430c186

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

MD5
aa8d5eec0c68de288fdd55a128e77e95

SHA1
496e01324adba5e4db50cb723cc0f4593dfdf6b3

SHA256
3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

SHA512
86700f73ac9da32ff9c5e6ea249ff0dd362a11ca3fd5dd4730c3cc5ccbdc2893a288e4ad26c89dd30e33e841c43cd4cb55ee989efa9e2ecad947ab1a198a7fe2

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

MD5
aa8d5eec0c68de288fdd55a128e77e95

SHA1
496e01324adba5e4db50cb723cc0f4593dfdf6b3

SHA256
3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

SHA512
86700f73ac9da32ff9c5e6ea249ff0dd362a11ca3fd5dd4730c3cc5ccbdc2893a288e4ad26c89dd30e33e841c43cd4cb55ee989efa9e2ecad947ab1a198a7fe2

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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