048ba25ab37fd36bd1d357504d6e5f32c1fc9f6f8ac318aaeafbd831752381fa

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25/02/2024, 05:01

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General

Target

2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe
Size

39KB
MD5

9cf30125a29f02c6d3a578c31955304d
SHA1

0cc1a801a90c91725aecba6b5830072b5bdece9e
SHA256

048ba25ab37fd36bd1d357504d6e5f32c1fc9f6f8ac318aaeafbd831752381fa
SHA512

e9c94b7ce674532a05135f34b821e4ad44210a0f19a5493eb2abbd06fe73cb6eef6223409004e73dde6c19fb800be57b90d4f7d264e64d7611f2db30e89768a4
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLL1:ZzFbxmLPWQMOtEvwDpjLeU5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5ae-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-1-5-21-1414748551-1520717498-2956787782-1000\Control Panel\International\Geo\Nation	2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
456	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 1972 wrote to memory of 456	1972	2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe	87
PID 1972 wrote to memory of 456	1972	2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe	87
PID 1972 wrote to memory of 456	1972	2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_9cf30125a29f02c6d3a578c31955304d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:456

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
39KB

MD5
12975329fd584e0ed1d90701be15181f

SHA1
6acd83f6739b2824bed284fbd88ff8b3b6fcbca2

SHA256
f0748e9d004bd9b6987e5a5fc705177b06eb0cd057394b717dc25584ddb11f0b

SHA512
74930e018df46855a038ac39133bcff000c1cf956233dba7663756a3b40f8184e6b940ec908525d9cc8524717ffc13deef4e4e2fa3f5ea29eb081c860923faf5

Download Submit
memory/456-19-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/456-21-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/456-26-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/1972-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1972-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/1972-2-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/1972-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/1972-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download