d1d1f2984d23b53c022e454b0736b65375926d73c7db299f4a931c974ad9a8b4

Analysis

max time kernel
135s
max time network
164s
platform
windows7_x64
resource
win7v20210408
submitted
18/09/2021, 11:33

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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

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

description	pid	Process
Token: SeDebugPrivilege	1940	TimeCrypt.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
624	notepad.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	27
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	27
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	27
PID 1940 wrote to memory of 1772	1940	TimeCrypt.exe	27
PID 1772 wrote to memory of 624	1772	cmd.exe	29
PID 1772 wrote to memory of 624	1772	cmd.exe	29
PID 1772 wrote to memory of 624	1772	cmd.exe	29
PID 1772 wrote to memory of 624	1772	cmd.exe	29

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 Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
8KB

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

Filesize
8KB

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