008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549

General

Target

Control.exe
Size

1.9MB
MD5

d86f451bbff804e59a549f9fb33d6e3f
SHA1

3cb0cb07cc2542f1d98060adccda726ea865db98
SHA256

008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549
SHA512

c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2

Score

9^/10

cryptone packer ransomware

Malware Config

Signatures

CryptOne packer 2 IoCs

Detects CryptOne packer defined in NCC blogpost.

cryptone packer

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method	cryptone
C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method	cryptone

Executes dropped EXE 1 IoCs

Processes:

Method

pid process

2880 Method

pid	process
2880	Method

Modifies extensions of user files 20 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

Method

description	ioc	process
File renamed	C:\Users\Admin\Pictures\CompressMount.tiff => C:\Users\Admin\Pictures\CompressMount.tiff.phoenix	Method
File renamed	C:\Users\Admin\Pictures\ConvertExit.raw => C:\Users\Admin\Pictures\ConvertExit.raw.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\RenamePing.png.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\StepCompress.tif.phoenix	Method
File renamed	C:\Users\Admin\Pictures\SyncEdit.tiff => C:\Users\Admin\Pictures\SyncEdit.tiff.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\CompressMount.tiff.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\DismountResume.png.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\RevokePush.tiff.phoenix	Method
File renamed	C:\Users\Admin\Pictures\UpdateMerge.raw => C:\Users\Admin\Pictures\UpdateMerge.raw.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\UpdateMerge.raw.phoenix	Method
File renamed	C:\Users\Admin\Pictures\BackupMeasure.crw => C:\Users\Admin\Pictures\BackupMeasure.crw.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\BackupMeasure.crw.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\ConvertExit.raw.phoenix	Method
File renamed	C:\Users\Admin\Pictures\RevokePush.tiff => C:\Users\Admin\Pictures\RevokePush.tiff.phoenix	Method
File renamed	C:\Users\Admin\Pictures\UndoSplit.tif => C:\Users\Admin\Pictures\UndoSplit.tif.phoenix	Method
File renamed	C:\Users\Admin\Pictures\DismountResume.png => C:\Users\Admin\Pictures\DismountResume.png.phoenix	Method
File renamed	C:\Users\Admin\Pictures\RenamePing.png => C:\Users\Admin\Pictures\RenamePing.png.phoenix	Method
File renamed	C:\Users\Admin\Pictures\StepCompress.tif => C:\Users\Admin\Pictures\StepCompress.tif.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\SyncEdit.tiff.phoenix	Method
File opened for modification	C:\Users\Admin\Pictures\UndoSplit.tif.phoenix	Method

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Control.exeMethodcmd.execmd.exe

description	pid	process	target process
PID 1320 wrote to memory of 2880	1320	Control.exe	Method
PID 1320 wrote to memory of 2880	1320	Control.exe	Method
PID 2880 wrote to memory of 372	2880	Method	cmd.exe
PID 2880 wrote to memory of 372	2880	Method	cmd.exe
PID 1320 wrote to memory of 976	1320	Control.exe	cmd.exe
PID 1320 wrote to memory of 976	1320	Control.exe	cmd.exe
PID 372 wrote to memory of 3976	372	cmd.exe	waitfor.exe
PID 372 wrote to memory of 3976	372	cmd.exe	waitfor.exe
PID 976 wrote to memory of 1524	976	cmd.exe	waitfor.exe
PID 976 wrote to memory of 1524	976	cmd.exe	waitfor.exe
PID 372 wrote to memory of 4088	372	cmd.exe	attrib.exe
PID 372 wrote to memory of 4088	372	cmd.exe	attrib.exe
PID 976 wrote to memory of 4036	976	cmd.exe	attrib.exe
PID 976 wrote to memory of 4036	976	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4088 attrib.exe
4036 attrib.exe

pid	process
4088	attrib.exe
4036	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Control.exe
"C:\Users\Admin\AppData\Local\Temp\Control.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method
C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method /go
2⤵
- Executes dropped EXE
- Modifies extensions of user files
- Suspicious use of WriteProcessMemory
PID:2880

C:\Windows\SYSTEM32\cmd.exe
cmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method" & del "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method" & rd "C:\Users\Admin\AppData\Roaming\MsimeReceiver\"
3⤵
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\system32\waitfor.exe
waitfor /t 10 pause /d y
4⤵
PID:3976

C:\Windows\system32\attrib.exe
attrib -h "C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method"
4⤵
- Views/modifies file attributes
PID:4088

C:\Windows\SYSTEM32\cmd.exe
cmd /c waitfor /t 10 pause /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\Control.exe" & del "C:\Users\Admin\AppData\Local\Temp\Control.exe" & rd "C:\Users\Admin\AppData\Local\Temp\"
2⤵
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\system32\waitfor.exe
waitfor /t 10 pause /d y
3⤵
PID:1524

C:\Windows\system32\attrib.exe
attrib -h "C:\Users\Admin\AppData\Local\Temp\Control.exe"
3⤵
- Views/modifies file attributes
PID:4036

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method
MD5
d86f451bbff804e59a549f9fb33d6e3f

SHA1
3cb0cb07cc2542f1d98060adccda726ea865db98

SHA256
008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549

SHA512
c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2

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C:\Users\Admin\AppData\Roaming\MsimeReceiver\Method
MD5
d86f451bbff804e59a549f9fb33d6e3f

SHA1
3cb0cb07cc2542f1d98060adccda726ea865db98

SHA256
008ec79765325200361d9c93ac35edd430f8b17894ff843268caa5acd6224549

SHA512
c86ad7e1d5c445d4de9866faab578b2eb04f72ffef4fac380b7164003471b4b48b09772e735ea15205e2ab4a1f4d194d188cdeb12c7199d0824ddaba393dcaa2

Download Submit
memory/372-7-0x0000000000000000-mapping.dmp

Download
memory/976-8-0x0000000000000000-mapping.dmp

Download
memory/1320-4-0x0000000002010000-0x00000000021D0000-memory.dmp

Filesize
1.8MB

Download
memory/1524-10-0x0000000000000000-mapping.dmp

Download
memory/2880-2-0x0000000000000000-mapping.dmp

Download
memory/3976-9-0x0000000000000000-mapping.dmp

Download
memory/4036-12-0x0000000000000000-mapping.dmp

Download
memory/4088-11-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads