ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48

Analysis

max time kernel
143s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 15:45

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General

Target

2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
Size

46KB
MD5

94dbcba8ecef696b74ca20ad8302d53e
SHA1

8079e8ba19a3c387b73ff96210049f643555b85e
SHA256

ef4bde3f97d8af246fb2bafe7ef0b2a1f0440f5f986c46b1fc14d777830b8a48
SHA512

59c38c51522fd261345d1ac6b6be65fe0896508dce2f39b88c2ec0c54ccbc666cbfb2555ef93354152f668f6728270db77b26b62bd5b3e626ffa420c4bf25246
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1ws2:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023129-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	misid.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 1544	4504	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	86
PID 4504 wrote to memory of 1544	4504	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	86
PID 4504 wrote to memory of 1544	4504	2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_94dbcba8ecef696b74ca20ad8302d53e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\misid.exe

Filesize
46KB

MD5
11c0fa8df0e7d92d749ba5e2542976f2

SHA1
425618e77e8a0e94f70596d5a76dbaaa6d811c46

SHA256
9c43b4b8f2266a841ab6f547dde5319ade21a2a1f0f8b8268edb894d8af56193

SHA512
984f93aac4cd85557343feb39ea0e827c84a8dee9078baba5f9d884bb38db8b3388e943685a0e95ef643a6d9461a83f6cb0156e39fad8c8a929c2000c60fe228

Download Submit
memory/1544-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1544-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1544-19-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/1544-26-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4504-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4504-1-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/4504-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/4504-3-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download