d8bf05a7de0376bb370982dbe7af4ae2d275933f34ebea113e38511b7d7e6c67

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2024, 15:24

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General

Target

2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe
Size

35KB
MD5

1003c9c93d62023efd4040ac0ba7716b
SHA1

9e7b9ef9a3bf986f00019c84e72af53c23f67bbe
SHA256

d8bf05a7de0376bb370982dbe7af4ae2d275933f34ebea113e38511b7d7e6c67
SHA512

c1dc106fdb5e1432423263cec4b7c4c9aee75c142e2c5b063a6a313b9fe68f86259ffaa7cc5503ee0f437b0946e7ed2ae5c7a4191e672a8a9f99e05eec8e08cc
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3b:bxNrC7kYo1Fxf3s06gN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023206-12.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2848	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 4168 wrote to memory of 2848	4168	2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe	86
PID 4168 wrote to memory of 2848	4168	2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe	86
PID 4168 wrote to memory of 2848	4168	2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-22_1003c9c93d62023efd4040ac0ba7716b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2848

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
36KB

MD5
b2b8d5fb1dcdae1f209a738c2911399c

SHA1
e5e0bae1dade4bb1c431b36e07f5a993463405e5

SHA256
e7feeec89bef63120676e3d43b51c321d9a53b56f517bd3d197db64664fb79c1

SHA512
f6493d4ad16021af65920781b6e3e46a11df0fdb1bb307216da9ab832ab994d1653aea2bd5a2175e6d7f7fc5670cf4d009524507347fef33087d968f94de162f

Download Submit
memory/2848-17-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/2848-19-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/4168-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4168-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4168-2-0x00000000024C0000-0x00000000024C6000-memory.dmp

Filesize
24KB

Download