e585e07a2a000dad0b1088dcb29eb7c0c248fbf37b0ed340502308166c0058ac

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 12:29

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General

Target

2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe
Size

46KB
MD5

2e733833c81121ae83219a2ebf457e1f
SHA1

af7ab887bb174ae5fd94da5a413e5d2554990c50
SHA256

e585e07a2a000dad0b1088dcb29eb7c0c248fbf37b0ed340502308166c0058ac
SHA512

117a149a8097faf5c9ba2e3e62f2c25b5253fd296487ffe8a0fa7757eb77698b925a69cccb3a12abdb2b075077e193fec84f388d5d4a68c83364f41f2380e8ca
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUqoBtN:vj+jsMQMOtEvwDpj5Hczer5izoBX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.dat	CryptoLocker_set1

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	2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2912	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 3084 wrote to memory of 2912	3084	2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe	87
PID 3084 wrote to memory of 2912	3084	2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe	87
PID 3084 wrote to memory of 2912	3084	2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_2e733833c81121ae83219a2ebf457e1f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2912

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
47KB

MD5
a3199877d8fbde7ec713652ae57cbeef

SHA1
6d4952390b885939599d6d92781996f2c85b1e32

SHA256
66d5187b1297b18716a87bb87902794ea6fc2a1cd39ad5b425fd56f96e2796e7

SHA512
8297fc201c8c1b5e74f44331c2db40b473bf113d072776901c8c409c8fb97c38021b4194482ff1bc76155da4c400c7dcdde2ce0709d639f0e74324b196a317dd

Download Submit
memory/2912-17-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/2912-19-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/3084-0-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3084-1-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3084-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download