055ead7da47ab9d8e78e5f4fcfdf92a4f1e068307f1d51be5e352963bb84e85c

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 05:33

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General

Target

2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe
Size

39KB
MD5

e5d74b1e15824149b609e51982415e93
SHA1

19cf0f29d3ce5fd4a1a5d697acd97e9536519890
SHA256

055ead7da47ab9d8e78e5f4fcfdf92a4f1e068307f1d51be5e352963bb84e85c
SHA512

9a8dd8cd2ecd07e4539064436fcb660304f984ed1639f29e01e5fcdab37d319308b8b9d1da79039fafa7033e71e2e0d4837d011cdf048f6b6df999c4f66ec48c
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+SP:ZzFbxmLPWQMOtEvwDpjLeJAsKcTP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b2a-12.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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2436	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 4016 wrote to memory of 2436	4016	2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe	85
PID 4016 wrote to memory of 2436	4016	2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe	85
PID 4016 wrote to memory of 2436	4016	2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_e5d74b1e15824149b609e51982415e93_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4016
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2436

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
40KB

MD5
faf72e8ec8745b515466952918af8ea7

SHA1
69286071a84bf72dfe55a9a3cbdf18274cbfa599

SHA256
55e5a82aeb275e75dfdff87eeda4eb7d05a2182fa967e8624116deef04e835cf

SHA512
a7e59130ac1839faadea623d31aea84a37b7418a2f08082e9b2d4948ef73db0cec79381b312264bdeae007a3e96744bb1d1889eefd8e970ca4592f4ac5c2f9e1

Download Submit
memory/2436-16-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/2436-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2436-24-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2436-25-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/4016-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4016-1-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4016-8-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download