83bc174a316bf34495a41ee3f1769d55d7154df5e35cea436e960bc3580dadb1

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 23:24

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General

Target

2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe
Size

37KB
MD5

22231570b04ac44c07fdaa55783948ba
SHA1

688231972ae6f0be5395c93fe1c393fc590273e2
SHA256

83bc174a316bf34495a41ee3f1769d55d7154df5e35cea436e960bc3580dadb1
SHA512

983f4bfa429c7ead304a225054d3194b1cef2638415de6e274d7a51726888e894439f5bd31fd7aeccd557090365efff87fdcff6dae678dfcfd68e05a0f3e7346
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZr/0x:bgX4zYcgTEu6QOaryfjqDDw3sCu5q/W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	hasfj.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 2516 wrote to memory of 2212	2516	2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe	88
PID 2516 wrote to memory of 2212	2516	2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe	88
PID 2516 wrote to memory of 2212	2516	2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_22231570b04ac44c07fdaa55783948ba_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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\hasfj.exe

Filesize
38KB

MD5
230d1c3db726ef4eab25709861b2eba4

SHA1
7a3f14f71b1c479d3e6080ab87d3ae7e8bfb8d87

SHA256
284dc07c59aa5959c1124ed1dc3af17d1c8f016f251760b9c0ec1d23ad2eb42b

SHA512
665c30cb7f9e148d2403fb51d3c99f95f140e8690d77c9f8339c3bda9a1097b196529aa290c09a867ad417ea644e4323c8d5054656fa7ee0ce7f29660540b154

Download Submit
memory/2212-17-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/2212-19-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2516-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2516-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/2516-2-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download