866c577470739f356d968b012dcd0ad8cfb86aa9f3f53bf73f088b571e5d9c32

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 02:32

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General

Target

2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe
Size

126KB
MD5

c2dcc3d32e40f6540a15c0194540500a
SHA1

f9b1bba1da3b1741b0ad9a239e43dfc4f4a864ae
SHA256

866c577470739f356d968b012dcd0ad8cfb86aa9f3f53bf73f088b571e5d9c32
SHA512

fa395c2212eca02a513640616a9a1db8c639a47d687629e65ba9e57ff0e7043b11b85039527e703b300c59f1c08b9a3984530d408958b741be15dbf5808271f2
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpR/B:vCA9OtEvwDpjj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023142-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023142-12.dat	CryptoLocker_set1

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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4916	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 4108 wrote to memory of 4916	4108	2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe	89
PID 4108 wrote to memory of 4916	4108	2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe	89
PID 4108 wrote to memory of 4916	4108	2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_c2dcc3d32e40f6540a15c0194540500a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4916

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
127KB

MD5
ea633d9975c3dbbb976839f1f20a0ef0

SHA1
d0e17904ea6692394548a0e32f92dfa7719af3d1

SHA256
9f3d0521f05e61d8f2258a57ecdd1c502e613d588052f7a49934e76e9318ef62

SHA512
5eb3b16652e0f0f579b3a340cb72d80c470301f5532f5aaa19c9476f75234f5f52677648dae35def318d7c6f798e1f673ff3f03d0fa0815e2c2e0d510636d6d0

Download Submit
memory/4108-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4108-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4108-2-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4916-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/4916-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download