0143adcfa79052c6a545d876b285367c156472bb740130e719f7c17ca425f3e7

Analysis

max time kernel
135s
max time network
143s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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
behavioral1/files/0x0008000000012233-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2700	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2700	2508	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	28
PID 2508 wrote to memory of 2700	2508	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	28
PID 2508 wrote to memory of 2700	2508	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	28
PID 2508 wrote to memory of 2700	2508	2024-02-03_3e152c8858c3b6c7b620700d2619445e_cryptolocker.exe	28

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⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\pissa.exe

Filesize
34KB

MD5
25fa2a6ea55f1c038bc4c8e4b7f25fad

SHA1
6b1c1da5fd4a06ceb394cd5eece9ad57ce65a34e

SHA256
82697992a3991ac01fa3a55f5979634a81292690a935096f3b0e38dbcc4d3e02

SHA512
727cd1610448a14b76d8d66819e6b5a33bae8ff3927d0deb3ed07b3f6d43aaa00e249762f8300a3ed1d7d1ddba245128de4ca7f7d3f834a470840165b64d0169

Download Submit
memory/2508-0-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/2508-2-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/2508-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/2700-17-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2700-15-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download