4d20670abb96d1ecaa60fe93ea4dd86ed7776a76118df49cb5381f57952162cd

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28-02-2024 09:25

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General

Target

2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe
Size

76KB
MD5

0a5fefc5d4f0cab37289db3e450f1296
SHA1

e605dabf2eb6d45423c809e4841e23786ec76847
SHA256

4d20670abb96d1ecaa60fe93ea4dd86ed7776a76118df49cb5381f57952162cd
SHA512

4e1e2f0e0a964455dc55accf2b37fb8e17d6e89f68d45cb88c479dbad1a260b51d408276b547cc65324e5b2f27ea07b4fb089b92303316de338aa1b69849e16b
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuTD5:ZVxkGOtEvwDpjca1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023224-13.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2720	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 1196 wrote to memory of 2720	1196	2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe	90
PID 1196 wrote to memory of 2720	1196	2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe	90
PID 1196 wrote to memory of 2720	1196	2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_0a5fefc5d4f0cab37289db3e450f1296_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2720

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

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Downloads

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

Filesize
76KB

MD5
eed617400b69fd4873e29c24fc529650

SHA1
aa7d3bb395bf5b55e2e52c0852ce1553ad4d0eeb

SHA256
196a3bb86f240d389ee2ccdc89aa26d0c9146af1177c6e8be4388f5febc7b6fe

SHA512
e6eddd0ddfb7d003dc9c366c6e204397f5ed8d40d12d8dd6c484cba18d55a5b161f994bf7dff00ce8ecefed6732a677cfd5c545cfe5a8330d3fb56df9b0b54b5

Download Submit
memory/1196-0-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/1196-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1196-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1196-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1196-17-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2720-20-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2720-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download