ryuk | 6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096

General

Target

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
Size

186KB
MD5

d0020f73e4567c9a96b92c78419ed215
SHA1

10766dfbedd4ffba1c23bad0d83324bd04d2700a
SHA256

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096
SHA512

fa075796f4192b8249708f0d18b3dadf56874b75a1619e17ae3a3e61ff72eec010e9d53bb69e5627255119a1ade463dd432b8d9a046da74b653c7f5e83238d8a

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:

vSCrxOE.exe

pid process

4476 vSCrxOE.exe

pid	process
4476	vSCrxOE.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:

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exevSCrxOE.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	vSCrxOE.exe

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

System Information Discovery
T1082
Runs net.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exevSCrxOE.exe

pid	process
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4476	vSCrxOE.exe
4476	vSCrxOE.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
4476	vSCrxOE.exe
4476	vSCrxOE.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exevSCrxOE.exe

description	pid	process
Token: SeBackupPrivilege	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
Token: SeBackupPrivilege	4476	vSCrxOE.exe

Suspicious use of WriteProcessMemory 63 IoCs

Processes:

6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exenet.exenet.exevSCrxOE.exenet.exenet.exenet.exenet.exenet.exenet.exenet.exenet.exe

description	pid	process	target process
PID 4832 wrote to memory of 4476	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	vSCrxOE.exe
PID 4832 wrote to memory of 4476	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	vSCrxOE.exe
PID 4832 wrote to memory of 4476	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	vSCrxOE.exe
PID 4832 wrote to memory of 3496	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 3496	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 3496	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2788	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2788	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2788	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 2788 wrote to memory of 1640	2788	net.exe	net1.exe
PID 2788 wrote to memory of 1640	2788	net.exe	net1.exe
PID 2788 wrote to memory of 1640	2788	net.exe	net1.exe
PID 3496 wrote to memory of 4028	3496	net.exe	net1.exe
PID 3496 wrote to memory of 4028	3496	net.exe	net1.exe
PID 3496 wrote to memory of 4028	3496	net.exe	net1.exe
PID 4476 wrote to memory of 4192	4476	vSCrxOE.exe	net.exe
PID 4476 wrote to memory of 4192	4476	vSCrxOE.exe	net.exe
PID 4476 wrote to memory of 4192	4476	vSCrxOE.exe	net.exe
PID 4832 wrote to memory of 4384	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 4384	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 4384	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2580	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2580	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 2580	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4192 wrote to memory of 4056	4192	net.exe	net1.exe
PID 4192 wrote to memory of 4056	4192	net.exe	net1.exe
PID 4192 wrote to memory of 4056	4192	net.exe	net1.exe
PID 4476 wrote to memory of 828	4476	vSCrxOE.exe	net.exe
PID 4476 wrote to memory of 828	4476	vSCrxOE.exe	net.exe
PID 4476 wrote to memory of 828	4476	vSCrxOE.exe	net.exe
PID 2580 wrote to memory of 3688	2580	net.exe	net1.exe
PID 2580 wrote to memory of 3688	2580	net.exe	net1.exe
PID 2580 wrote to memory of 3688	2580	net.exe	net1.exe
PID 4384 wrote to memory of 3848	4384	net.exe	net1.exe
PID 4384 wrote to memory of 3848	4384	net.exe	net1.exe
PID 4384 wrote to memory of 3848	4384	net.exe	net1.exe
PID 828 wrote to memory of 2612	828	net.exe	net1.exe
PID 828 wrote to memory of 2612	828	net.exe	net1.exe
PID 828 wrote to memory of 2612	828	net.exe	net1.exe
PID 4832 wrote to memory of 9944	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 9944	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 9944	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 9952	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 9952	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 9952	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10008	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10008	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10008	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10024	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10024	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 4832 wrote to memory of 10024	4832	6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe	net.exe
PID 9952 wrote to memory of 10120	9952	net.exe	net1.exe
PID 9952 wrote to memory of 10120	9952	net.exe	net1.exe
PID 9952 wrote to memory of 10120	9952	net.exe	net1.exe
PID 10008 wrote to memory of 10136	10008	net.exe	net1.exe
PID 10008 wrote to memory of 10136	10008	net.exe	net1.exe
PID 10008 wrote to memory of 10136	10008	net.exe	net1.exe
PID 10024 wrote to memory of 10148	10024	net.exe	net1.exe
PID 10024 wrote to memory of 10148	10024	net.exe	net1.exe
PID 10024 wrote to memory of 10148	10024	net.exe	net1.exe
PID 9944 wrote to memory of 10156	9944	net.exe	net1.exe
PID 9944 wrote to memory of 10156	9944	net.exe	net1.exe
PID 9944 wrote to memory of 10156	9944	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe
"C:\Users\Admin\AppData\Local\Temp\6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4832

C:\Users\Admin\AppData\Local\Temp\vSCrxOE.exe
"C:\Users\Admin\AppData\Local\Temp\vSCrxOE.exe" 8 LAN
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
3⤵
- Suspicious use of WriteProcessMemory
PID:4192

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "audioendpointbuilder" /y
4⤵
PID:4056

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "samss" /y
3⤵
- Suspicious use of WriteProcessMemory
PID:828

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "samss" /y
4⤵
PID:2612

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:3496

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "audioendpointbuilder" /y
3⤵
PID:4028

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:2788

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "audioendpointbuilder" /y
3⤵
PID:1640

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "samss" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:4384

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "samss" /y
3⤵
PID:3848

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "samss" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:2580

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "samss" /y
3⤵
PID:3688

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:9952

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "audioendpointbuilder" /y
3⤵
PID:10120

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "audioendpointbuilder" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:9944

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "audioendpointbuilder" /y
3⤵
PID:10156

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "samss" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:10008

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "samss" /y
3⤵
PID:10136

C:\Windows\SysWOW64\net.exe
"C:\Windows\System32\net.exe" stop "samss" /y
2⤵
- Suspicious use of WriteProcessMemory
PID:10024

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "samss" /y
3⤵
PID:10148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys\08e575673cce10c72090304839888e02_e269d2c1-0edf-4391-ac7b-818b8e88b04f
MD5
93a5aadeec082ffc1bca5aa27af70f52

SHA1
47a92aee3ea4d1c1954ed4da9f86dd79d9277d31

SHA256
a1a21799e98f97f271657ce656076f33dcb020d9370f1f2671d783cafd230294

SHA512
df388c8d83e779e006d6311b2046fcf9259ec33d379fc0e2c6a4b6b90418f587a12c5c23acd488413a02568ca2d3effe04608ec7c791925c7ed53dc71093ca45

Download Submit
C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html
MD5
8c33ca1dad936c07e8e48b3e8d0862d5

SHA1
7923dfab163b61fa58a77b27c398baacd73b03ae

SHA256
866a171150877caf5af6011ec36f9dab92d9faae37e15ba58d1054d2fba281cb

SHA512
6604d5328034671a105b569ebb2dc533e5b162e6d291da056a0a376c0d5c82b39a7e1093817ced4c25a3d68f839e1237b17586e26328a87aef648caed651fdfa

Download Submit
C:\Users\Admin\AppData\Local\Temp\vSCrxOE.exe
MD5
d0020f73e4567c9a96b92c78419ed215

SHA1
10766dfbedd4ffba1c23bad0d83324bd04d2700a

SHA256
6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096

SHA512
fa075796f4192b8249708f0d18b3dadf56874b75a1619e17ae3a3e61ff72eec010e9d53bb69e5627255119a1ade463dd432b8d9a046da74b653c7f5e83238d8a

Download Submit
C:\Users\Admin\AppData\Local\Temp\vSCrxOE.exe
MD5
d0020f73e4567c9a96b92c78419ed215

SHA1
10766dfbedd4ffba1c23bad0d83324bd04d2700a

SHA256
6e96d221514a919ea0366b4ce51b84fbac21a9da920b5281e4aa27ed2cf3b096

SHA512
fa075796f4192b8249708f0d18b3dadf56874b75a1619e17ae3a3e61ff72eec010e9d53bb69e5627255119a1ade463dd432b8d9a046da74b653c7f5e83238d8a

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads