d1d1f2984d23b53c022e454b0736b65375926d73c7db299f4a931c974ad9a8b4

General

Target

TimeCrypt.exe
Size

591KB
MD5

22ff13395d2dbf841909c4f348dfd6c1
SHA1

5b90b19882166214a64c9af5a2a28a5f5a1a0d6f
SHA256

d1d1f2984d23b53c022e454b0736b65375926d73c7db299f4a931c974ad9a8b4
SHA512

be44092b58096d6c2c95232523c110f1b441e1a1411b3212fb1f793cddbc01d960b7a7018772d96c608117d67d435e6143dae7587d003bbfef6328b5daf66f3d

Score

7^/10

Malware Config

Signatures

Drops startup file 2 IoCs

Processes:

TimeCrypt.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TimeCrypt.exe	TimeCrypt.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kcry-info.txt	TimeCrypt.exe

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

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

TimeCrypt.exe

description pid process

Token: SeDebugPrivilege 1940 TimeCrypt.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

notepad.exe

pid process

624 notepad.exe

description	pid	process
Token: SeDebugPrivilege	1940	TimeCrypt.exe

pid	process
624	notepad.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

TimeCrypt.execmd.exe

description	pid	process	target process
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	cmd.exe
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	cmd.exe
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	cmd.exe
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	cmd.exe
PID 1772 wrote to memory of 624	1772	cmd.exe	notepad.exe
PID 1772 wrote to memory of 624	1772	cmd.exe	notepad.exe
PID 1772 wrote to memory of 624	1772	cmd.exe	notepad.exe
PID 1772 wrote to memory of 624	1772	cmd.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\TimeCrypt.exe
"C:\Users\Admin\AppData\Local\Temp\TimeCrypt.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C start notepad.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kcry-info.txt
2⤵
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\SysWOW64\notepad.exe
notepad.exe C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kcry-info.txt
3⤵
- Suspicious use of FindShellTrayWindow
PID:624

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1760

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kcry-info.txt
MD5
bc12f7cb291d0bd04e8e2cb29d5fcdba

SHA1
a655f290d16ac7024e064bf09a2ec9761d57bff8

SHA256
3e9fefe58edc3d34e9107af4f1203c6ad52f26b0b9588adc3a3112bf3410f130

SHA512
c03b9c6597ad1a7f3ec42a7a84d71536536e65d2f4a3ccbd87980fd827a23edbff14485de70205b6086a5a4d03a5c77a5248688a0a49c99a1a4f80c7074e2ece

Download Submit
memory/624-66-0x0000000000000000-mapping.dmp

Download
memory/624-67-0x0000000076691000-0x0000000076693000-memory.dmp

Filesize
8KB

Download
memory/1760-69-0x000007FEFBFB1000-0x000007FEFBFB3000-memory.dmp

Filesize
8KB

Download
memory/1772-65-0x0000000000000000-mapping.dmp

Download
memory/1940-60-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/1940-62-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/1940-63-0x00000000049F5000-0x0000000004A06000-memory.dmp

Filesize
68KB

Download
memory/1940-64-0x0000000007DD0000-0x0000000007E41000-memory.dmp

Filesize
452KB

Download

Analysis

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