0143adcfa79052c6a545d876b285367c156472bb740130e719f7c17ca425f3e7

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 00:25

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General

Target

2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe
Size

33KB
MD5

3e152c8858c3b6c7b620700d2619445e
SHA1

2c17f957d4ec258778f56d052719fff8aa1fef68
SHA256

0143adcfa79052c6a545d876b285367c156472bb740130e719f7c17ca425f3e7
SHA512

7656c94ff6db433639c9f13af533f491776cd4b25a0bd829e4e9868427c7719aef32a4465fba4b26fedfb0561edf8898a78c4769eb1e8f2baecd6ced004d289d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7+M/aE:bxNrC7kYo1Fxf3s0mE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023204-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5092	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 4064 wrote to memory of 5092	4064	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	91
PID 4064 wrote to memory of 5092	4064	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	91
PID 4064 wrote to memory of 5092	4064	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4064
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:5092

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
25fa2a6ea55f1c038bc4c8e4b7f25fad

SHA1
6b1c1da5fd4a06ceb394cd5eece9ad57ce65a34e

SHA256
82697992a3991ac01fa3a55f5979634a81292690a935096f3b0e38dbcc4d3e02

SHA512
727cd1610448a14b76d8d66819e6b5a33bae8ff3927d0deb3ed07b3f6d43aaa00e249762f8300a3ed1d7d1ddba245128de4ca7f7d3f834a470840165b64d0169

Download Submit
memory/4064-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4064-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4064-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/5092-18-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download