5f62b25c4098edb748a7573d7040b16f5006d4b5a7ababb196eb0bfff9fb219f

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 10:38

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General

Target

2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe
Size

64KB
MD5

c14e69fccd55b53ddfbd3f52bd67858c
SHA1

3d4da8b1aa07d2e7a896ffd827da5f3742f582f2
SHA256

5f62b25c4098edb748a7573d7040b16f5006d4b5a7ababb196eb0bfff9fb219f
SHA512

c65f23ec10fd5da1bcf196a79fba4146819b281e32358327353d3ee282a88bb44aa54b825f3de88bef1274767105f8b32908f79f19a01546c08afd7995f9500d
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVN:ZVxkGOtEvwDpjcawX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002323e-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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4448	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 1208 wrote to memory of 4448	1208	2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe	84
PID 1208 wrote to memory of 4448	1208	2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe	84
PID 1208 wrote to memory of 4448	1208	2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_c14e69fccd55b53ddfbd3f52bd67858c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4448

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
64KB

MD5
5bcf0e176a46537e50ec64bafbeae3d7

SHA1
f9da0367d27ea04b0cc7890eda701845489add02

SHA256
675e79809e1064adff13db2837fc9eb2259f7fb8d86454ef5ba94f6f103dc384

SHA512
76ad2133ac3801e2c5e9088246e4ee970967e1cc2cbde9b1926e93456d9e73b05e35efb715f32d8cfa45e4fdb071263d0081a2dfb7e3262cbf3d89acbc098bf0

Download Submit
memory/1208-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1208-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1208-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1208-3-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1208-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4448-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4448-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4448-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download