0039cd33a929b9ceec333fdf58fca229da68a3208f6597f6b9c249fc74c359fb

Analysis

max time kernel
177s
max time network
199s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 23:42

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General

Target

2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe
Size

77KB
MD5

bf9659aac1b4123b26c6cc974f077375
SHA1

0669c74483c36671c75946467e884a9fc5cdacff
SHA256

0039cd33a929b9ceec333fdf58fca229da68a3208f6597f6b9c249fc74c359fb
SHA512

23234e114c6f94dc915c52ed4e5d9acac31b71de95b9e9be46b6d059660b514013d85c1c979ebc53f80b20dfd197efc8072f5e95682a686fcd2998453fcb79fb
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTmO7:ZVxkGOtEvwDpjcaxM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00050000000224ff-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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	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 2460 wrote to memory of 2848	2460	2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe	94
PID 2460 wrote to memory of 2848	2460	2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe	94
PID 2460 wrote to memory of 2848	2460	2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe	94

C:\Users\Admin\AppData\Local\Temp\2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_bf9659aac1b4123b26c6cc974f077375_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2848

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
3a957694b7d9e08dda40ce7da4f0601e

SHA1
d1607ee21f57cb43957b4fa92849411ce9e84f1d

SHA256
55c8b34cac5fbf6d769da34d7cff34ea4edcfd29d6e012154b87f03eabc8cd11

SHA512
d8b8948b259e9f83aac8aa7cbbb0e88d323aa56c121113d4ca9979f959a5b7362f17ca9141d0b7762fabe1c1306733aaaa85ba18f70f6bbd50690bd151d06b51

Download Submit
memory/2460-0-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2460-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2460-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2460-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2460-18-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2848-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/2848-21-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2848-20-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download