5c2482cf0aebf93e6880f7c2e20e0573d8f0348f05e672dc2bbb94c7bea65fa1

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
25-04-2024 02:42

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General

Target

2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe
Size

41KB
MD5

70ba91f80f7c882d686e60ec5d4ce9cc
SHA1

6630973bf326d57284c4a97cdeedbf6e3fb53c73
SHA256

5c2482cf0aebf93e6880f7c2e20e0573d8f0348f05e672dc2bbb94c7bea65fa1
SHA512

2bea029313b746cf7ddf87ab1432a62b5d8bef7efda1215d462d170b6d8dbc88fcd89c970ca5b4ffdb066e8712df4517b2d8ccf007743d1e924e6023d0a9687e
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3k7:bIDOw9a0Dwo3P1ojvUSD79Rk7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x001c00000001e97e-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-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation	2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	lossy.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 1564 wrote to memory of 2320	1564	2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe	87
PID 1564 wrote to memory of 2320	1564	2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe	87
PID 1564 wrote to memory of 2320	1564	2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_70ba91f80f7c882d686e60ec5d4ce9cc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2320

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\lossy.exe

Filesize
42KB

MD5
a416835c5612eff3670c8d2d50988cdc

SHA1
50f1742d39f0acbb84d6e6178b09c22942e61f02

SHA256
5ba99de1d2afc257619eb1f8d82ee0688c304710de5f5f89ba8d345bef52d774

SHA512
6d6a45cf272100375ba282431c2008565497725477110b5321543dcc905621dc5c6160b04fd5886a45b822ad976cf6597c8e44076ed7a815f1d3369f1d226eab

Download Submit
memory/1564-0-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/1564-1-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/1564-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2320-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2320-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download