229893dd6158dd36e1671e9143aa4a5810b2f93aa01ea0de2dc40647e61d195f

Analysis

max time kernel
129s
max time network
142s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
31/10/2023, 15:37

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General

Target

NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe
Size

60KB
MD5

6de8fd8222a357db09e0cc0f62e141fd
SHA1

6ae60d152310a79b12db34ada3ebb6899324d42d
SHA256

229893dd6158dd36e1671e9143aa4a5810b2f93aa01ea0de2dc40647e61d195f
SHA512

072b81c3721ff7cd50037c1319fb54e1b6fe6341ea417b848afb6ebf24d713ffae4df8095e2455c5b9559e0cd86936cdd8dbb8c5338a5b4f94f7d3e6ca312ca5
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29x:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7T

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2516	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe
2516	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 2516	1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe	28
PID 1532 wrote to memory of 2516	1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe	28
PID 1532 wrote to memory of 2516	1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe	28
PID 1532 wrote to memory of 2516	1532	NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.2023-09-08_6de8fd8222a357db09e0cc0f62e141fd_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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

Filesize
60KB

MD5
5bd94f05718a2357324e5af1eb2c6033

SHA1
8ec8442ef2cafef92f33a3dd5fd44f6ecbea7ffa

SHA256
b4b142407e25a1595d4b257ab0b7c63ad99d0cfa4e52985731ad3730640126fa

SHA512
99521a46aa5b39be0cdd94c9483aa88c3de4cef8d34abf79364dfdb42ca81c12dd74b4a242b1158afaf484fbed6f3731bab5a6f98948f4fa9d172e1180a84569

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

Filesize
60KB

MD5
5bd94f05718a2357324e5af1eb2c6033

SHA1
8ec8442ef2cafef92f33a3dd5fd44f6ecbea7ffa

SHA256
b4b142407e25a1595d4b257ab0b7c63ad99d0cfa4e52985731ad3730640126fa

SHA512
99521a46aa5b39be0cdd94c9483aa88c3de4cef8d34abf79364dfdb42ca81c12dd74b4a242b1158afaf484fbed6f3731bab5a6f98948f4fa9d172e1180a84569

Download Submit
\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
60KB

MD5
5bd94f05718a2357324e5af1eb2c6033

SHA1
8ec8442ef2cafef92f33a3dd5fd44f6ecbea7ffa

SHA256
b4b142407e25a1595d4b257ab0b7c63ad99d0cfa4e52985731ad3730640126fa

SHA512
99521a46aa5b39be0cdd94c9483aa88c3de4cef8d34abf79364dfdb42ca81c12dd74b4a242b1158afaf484fbed6f3731bab5a6f98948f4fa9d172e1180a84569

Download Submit
memory/1532-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1532-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1532-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2516-16-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download