75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9

General

Target

75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
Size

42KB
MD5

81174dd701d4aec16dcbb6cd12d60ac0
SHA1

b54635abd29754c3007d9afca40248e1dbc96e13
SHA256

75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9
SHA512

1ccc3c1a7ee6c25c2ad1389bb387907c9b427087bd8f85dddc772b146374b567bde3d074cee0af87d71f925609f105bde3ed2afd57a1f0aff66272c3803cec32
SSDEEP

768:B2p5vACedoO9mL//lldkbZnribCyOMZA2fDa2JsyE6scXsqIY8qlQbDzQC9:B2p5vACYhClgbZi2jcz9OyECGY8qlw9

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	updata.exe

Executes dropped EXE 1 IoCs

pid	Process
2316	updata.exe

Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Loads dropped DLL 2 IoCs

pid	Process
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	updata.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\kav = "C:\\Windows\\system32\\kav.exe"	updata.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\cctesto.data	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\progra~1\ATI\amdk8.sys	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
File created	C:\progra~1\ATI\amdk8.inf	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3524	sc.exe
4740	sc.exe
1540	sc.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2832	3888	WerFault.exe	81

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\CDROM&VEN_DADY&PROD_DADY_DVD-ROM\4&215468A5&0&010000	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_DADY&Prod_DADY_DVD-ROM\4&215468a5&0&010000\HardwareID	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\HardwareID	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
668	Process not Found

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeAuditPrivilege	1320	svchost.exe
Token: SeDebugPrivilege	2316	updata.exe
Token: SeDebugPrivilege	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 3524	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	82
PID 3888 wrote to memory of 3524	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	82
PID 3888 wrote to memory of 3524	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	82
PID 3888 wrote to memory of 4740	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	84
PID 3888 wrote to memory of 4740	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	84
PID 3888 wrote to memory of 4740	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	84
PID 3888 wrote to memory of 1540	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	86
PID 3888 wrote to memory of 1540	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	86
PID 3888 wrote to memory of 1540	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	86
PID 3888 wrote to memory of 2316	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	95
PID 3888 wrote to memory of 2316	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	95
PID 3888 wrote to memory of 2316	3888	75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe	95

C:\Users\Admin\AppData\Local\Temp\75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe
"C:\Users\Admin\AppData\Local\Temp\75b21a8af1826a88d59e7eb3e13268fe36fdf887ff7cd93ac2f1a07d65701fa9.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3888
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" config PolicyAgent start= auto
  2⤵
  - Launches sc.exe
  PID:3524
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" stop PolicyAgent
  2⤵
  - Launches sc.exe
  PID:4740
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start PolicyAgent
  2⤵
  - Launches sc.exe
  PID:1540
- C:\Users\Admin\AppData\Local\Temp\updata.exe
  "C:\Users\Admin\AppData\Local\Temp\updata.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 1380
  2⤵
  - Program crash
  PID:2832

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3888 -ip 3888
1⤵
PID:2480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Impair Defenses

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

1

T1489

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Downloads

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

Filesize
16KB

MD5
fa2eb9df34917951aa327201e19b94d8

SHA1
363df0272eb415d077193825c30c9c3d6aed233b

SHA256
4452f03cee9df2417627a8655f5b9ede5e798b3483306b3513621295f7911d51

SHA512
5811c07767eca6d7ca7637436e20f7f960b52b7571bf951a31b96ea8e4db0ea5914a596d064a6f3caa014827c0ffde865bd515af0dbc1bf39e385ce5fea30b25

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

Filesize
16KB

MD5
fa2eb9df34917951aa327201e19b94d8

SHA1
363df0272eb415d077193825c30c9c3d6aed233b

SHA256
4452f03cee9df2417627a8655f5b9ede5e798b3483306b3513621295f7911d51

SHA512
5811c07767eca6d7ca7637436e20f7f960b52b7571bf951a31b96ea8e4db0ea5914a596d064a6f3caa014827c0ffde865bd515af0dbc1bf39e385ce5fea30b25

Download Submit
C:\Windows\SysWOW64\cctesto.data

Filesize
16KB

MD5
219394ebb12624755e13e8c1f6da342c

SHA1
01c18e9c839263e3baa7f90688543a100cc407ee

SHA256
153dc55887a986eb52a8be9008342a66b7b60b8ece2b5e81138309210153d142

SHA512
50dffcddb5fef885388b7041789ec4c05964543d42d0777f3f7f65bcfa117513173a47488e30ace6355def928806492d7c04366343173b492b7bd8d3c148e3e7

Download Submit
C:\Windows\SysWOW64\cctesto.data

Filesize
16KB

MD5
219394ebb12624755e13e8c1f6da342c

SHA1
01c18e9c839263e3baa7f90688543a100cc407ee

SHA256
153dc55887a986eb52a8be9008342a66b7b60b8ece2b5e81138309210153d142

SHA512
50dffcddb5fef885388b7041789ec4c05964543d42d0777f3f7f65bcfa117513173a47488e30ace6355def928806492d7c04366343173b492b7bd8d3c148e3e7

Download Submit
memory/3888-132-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3888-141-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3888-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads