147f9eb000c8b038c75bd51fd3ecf01f1a4e1f8cdef4d82665a1724def504377

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2024, 13:25

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General

Target

2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe
Size

77KB
MD5

2b7f821c4be2095b7fada709e3770a9f
SHA1

dfa60ad7d6b007529984d416e914f6ff5c7929e6
SHA256

147f9eb000c8b038c75bd51fd3ecf01f1a4e1f8cdef4d82665a1724def504377
SHA512

d75b11c1260e1ee2c2c7d784a868411c56900526f5ad47efd5a549bd611b551ab75ee1c42e5d92cc743e88ac8459bf52e6ab19c33b554aa20b65a358b0abfa2b
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTmu:ZVxkGOtEvwDpjcaxo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-13.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	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 3992 wrote to memory of 2704	3992	2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe	88
PID 3992 wrote to memory of 2704	3992	2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe	88
PID 3992 wrote to memory of 2704	3992	2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_2b7f821c4be2095b7fada709e3770a9f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3992
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
77KB

MD5
73515a4c7611bf6acfe47a66bdf2303d

SHA1
1b7056888257d706c4ac53cdc047b980b1ef61b1

SHA256
2b8547bd4f38ad958085a9d3ccdda13d83caa19a61e94a735c7fc29e42604fcb

SHA512
778c86dfbfdd4612c03c296885f23d1eb8be994b1188a0587350ccc3136a6aa28dce6512f6ef745e9d7ef92c407139b2a71cc19a4fa0b3702a76a45f42f4b19a

Download Submit
memory/2704-17-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download
memory/2704-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2704-22-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/2704-26-0x00000000004D0000-0x00000000004D3000-memory.dmp

Filesize
12KB

Download
memory/3992-0-0x0000000000440000-0x0000000000443000-memory.dmp

Filesize
12KB

Download
memory/3992-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3992-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3992-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download