283317813b9892a6d1c3870d52ba77a34f95b43245bf4d8a264f9cfa9772d8c1

Analysis

max time kernel
148s
max time network
153s
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 05:36

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General

Target

2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe
Size

59KB
MD5

e667302b564aa1f61c24ab4ad23bb6e8
SHA1

fa95c9463886f3e995adb97a73108608e0ea7b0d
SHA256

283317813b9892a6d1c3870d52ba77a34f95b43245bf4d8a264f9cfa9772d8c1
SHA512

55cb18f298af6cfcd4761519c52ffe2c78186fb4e03536c620ec3a46850e1fa0e73bd3ea50d7f235e74f5076735255a40f974f87c6d0a44df2448847b77175cd
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3rFC0G:ZVxkGOtEvwDpjcaE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002303a-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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2584	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 1160 wrote to memory of 2584	1160	2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe	86
PID 1160 wrote to memory of 2584	1160	2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe	86
PID 1160 wrote to memory of 2584	1160	2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_e667302b564aa1f61c24ab4ad23bb6e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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
60KB

MD5
2f900f01d329b1c1345034d9682a30f2

SHA1
c4af0d9e34e4885704428d43b1278b549bca3311

SHA256
b06ce62f79a05b0cc4e4912dc94abd02f92f4addf271e88ed62f7a90e96a8e48

SHA512
659afa8dc9ef28ad47e7d4218aa0e08b8db8ae4c6eaa8fe37fad6c0e76860a2bf4226f598f863af6d07bffdaae34e94d8f5041b23a4b2544638e2a70a76e6134

Download Submit
memory/1160-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/1160-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1160-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1160-3-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/1160-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/2584-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2584-20-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download
memory/2584-26-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download