e3bdc89909bb3618f149d611b27cf015d3abdd3364294c104779f3ab6e2ab53f

Analysis

max time kernel
149s
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
22-02-2024 05:57

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General

Target

2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe
Size

34KB
MD5

992b7fdc8895a2d4e2b3cd8566b90ce0
SHA1

2027a4be44c072b77b679d1bfc9c11bcc7cdc9a3
SHA256

e3bdc89909bb3618f149d611b27cf015d3abdd3364294c104779f3ab6e2ab53f
SHA512

fc0df4306fb50c5230af2f651e66d85a53004082bb203d78c1baf1a632427e770dfbbff11e6d53710449364500fb23199177d56192ed868b07e14f6f29801987
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7+Ay:bxNrC7kYo1Fxf3s0s

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000231e8-12.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-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation	2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3516	pissa.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 1836 wrote to memory of 3516	1836	2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe	86
PID 1836 wrote to memory of 3516	1836	2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe	86
PID 1836 wrote to memory of 3516	1836	2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_992b7fdc8895a2d4e2b3cd8566b90ce0_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:3516

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\pissa.exe

Filesize
34KB

MD5
b00cf0adc0bdafd9fb2e664e64a67e60

SHA1
1b0f415165c29252de6d353a5913acb85174210f

SHA256
323cec2916cef6560c7656b9c0f2096f3781f35229fe568f0f941b3f83016aa3

SHA512
eb22b8bce40c07c5093d219875f061758432f38995d1dba548e490c4e52264c2b370850b07ccd66dc020490566e578b9044cfe1b2ac26d1f2c42b7bdfa691c1b

Download Submit
memory/1836-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1836-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1836-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3516-17-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/3516-18-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download