dc3cdcc09d9f49cd6dcbfdf9fd2aeddb85173efd92138b251dc8df303143aa6d

Analysis

max time kernel
149s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 21:22

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General

Target

2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe
Size

39KB
MD5

16f22290c1a7a93fc0ecf148f7bcc94d
SHA1

f0d0e9f4513b8eab44325321705024992b95510c
SHA256

dc3cdcc09d9f49cd6dcbfdf9fd2aeddb85173efd92138b251dc8df303143aa6d
SHA512

26a9b04410e286771411b80d24a0ad8cb991f86c05738d212ce70ccca094704d8703e8d6322f33c24a0221f191852571819e0d63c772880cea36f8f579d5be6e
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTO:ZzFbxmLPWQMOtEvwDpjLeU32

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023202-13.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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	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 2684 wrote to memory of 2580	2684	2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe	88
PID 2684 wrote to memory of 2580	2684	2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe	88
PID 2684 wrote to memory of 2580	2684	2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_16f22290c1a7a93fc0ecf148f7bcc94d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2684
- 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:2580

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
dd03581ffd6e3b722ce7a489f60dd901

SHA1
eda44889eba9753bc8eabefaa124d8d822eb44e4

SHA256
f922b457c86b3fc37c9657129ac2eafc23eeeb8ee147a114e8f7059ff2168709

SHA512
3eac4697b1f811fccca3aae018274af40240f06ad7bbf36341cfc1c5633fcef0b8a98d29c26276b0f63f2abceece7fbef13522170c4886ac4085cefcd7a14ce8

Download Submit
memory/2580-18-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/2580-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2580-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2684-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2684-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2684-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2684-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2684-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download