d63c590d13304e08762233f451beb269774b1c7c2db591da9d901d9ef7af4bde

General

Target

2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe
Size

72KB
MD5

d1b0d09691a706f9b8eb4e33b473db92
SHA1

af98f9e2218db9bbf37ef979749633522ef9d254
SHA256

d63c590d13304e08762233f451beb269774b1c7c2db591da9d901d9ef7af4bde
SHA512

d32ddd2327b0e58899249cd3c90023822d37665e44654fc1556bc9de846ed0e85124164da02cdd9adbc2ab4810dda3b0e00db4014d0c91b71077c599eb2e3692
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUt:ZVxkGOtEvwDpjcaZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000001db0e-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1420	misid.exe

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

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 3 IoCs

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4	misid.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4\Blob = 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	misid.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4\Blob = 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	misid.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 1420	4356	2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe	85
PID 4356 wrote to memory of 1420	4356	2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe	85
PID 4356 wrote to memory of 1420	4356	2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_d1b0d09691a706f9b8eb4e33b473db92_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Modifies system certificate store
  PID:1420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
72KB

MD5
90b93b54dfdd44e60dc56f762ee332f3

SHA1
888e3c18b19a8b9f77b6fb97c55ab10aa9dd9c0e

SHA256
610e6060880c65fd49b376b80c6271f17cc753fda13bf23896ea1e894b7a23b1

SHA512
6e7585a930e1a936d189408556e9cb222567e5c744f3e507398c4aaffb7d0b7d35f476408564231ae6dd02f92ab55b15f63c5116c7e30ac8bdfbb8115adf05ea

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

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/1420-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/1420-20-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/1420-22-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/4356-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/4356-1-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4356-2-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/4356-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4356-18-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing