d1d1f2984d23b53c022e454b0736b65375926d73c7db299f4a931c974ad9a8b4

Analysis

max time kernel
200s
max time network
161s
platform
windows10_x64
resource
win10-en
submitted
18/09/2021, 11:33

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General

Target
TimeCrypt.exe
Size 591KB
Sample210918-nn2tcacadj
SHA256 d1d1f2984d23b53c022e454b0736b65375926d73c7db299f4a931c974ad9a8b4
MD5 22ff13395d2dbf841909c4f348dfd6c1
SHA1 5b90b19882166214a64c9af5a2a28a5f5a1a0d6f
SHA512 be44092b58096d6c2c95232523c110f1b441e1a1411b3212fb1f793cddbc01d960b7a7018772d96c608117d67d435e6143dae7587d003bbfef6328b5daf66f3d
MD5 SHA1 SHA512

Score

7^/10

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kcry-info.txt	TimeCrypt.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TimeCrypt.exe	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	4736	TimeCrypt.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5052	notepad.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4736 wrote to memory of 5000	4736	TimeCrypt.exe	70
PID 4736 wrote to memory of 5000	4736	TimeCrypt.exe	70
PID 4736 wrote to memory of 5000	4736	TimeCrypt.exe	70
PID 5000 wrote to memory of 5052	5000	cmd.exe	72
PID 5000 wrote to memory of 5052	5000	cmd.exe	72
PID 5000 wrote to memory of 5052	5000	cmd.exe	72

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:4736
- 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:5000
- - 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:5052

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3464

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

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Downloads

memory/4736-115-0x00000000001C0000-0x00000000001C1000-memory.dmp

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memory/4736-117-0x0000000005150000-0x0000000005151000-memory.dmp

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memory/4736-118-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

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memory/4736-119-0x0000000004A80000-0x0000000004A81000-memory.dmp

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memory/4736-120-0x0000000004C40000-0x0000000004C41000-memory.dmp

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memory/4736-121-0x0000000004C43000-0x0000000004C45000-memory.dmp

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memory/4736-122-0x000000000A070000-0x000000000A0E1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads