1217ef4a62a195218248d9a5c1c191203b4a5a4d14859e6de5d62ff828fcc80e

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10-03-2024 06:33

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General

Target

2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe
Size

57KB
MD5

ea9ea9b2f9d4ed8479984a82000fd3a6
SHA1

b2fe35579815e65dc183c79d171ea05a6743229d
SHA256

1217ef4a62a195218248d9a5c1c191203b4a5a4d14859e6de5d62ff828fcc80e
SHA512

7c2edf4fcbe6b0cdfe56996518c42017d9223c419547427b75278f74d188120a96663bfd3a870786b4364563d8b194d16e178555ffd01bdb32954a1e9192bba1
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLlH9xoI:X6a+SOtEvwDpjBrOd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001220d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001220d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2660	2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_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 2660 wrote to memory of 2032	2660	2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe	28
PID 2660 wrote to memory of 2032	2660	2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe	28
PID 2660 wrote to memory of 2032	2660	2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe	28
PID 2660 wrote to memory of 2032	2660	2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_ea9ea9b2f9d4ed8479984a82000fd3a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2032

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\asih.exe

Filesize
58KB

MD5
c0e5473cd46f25162b473832b98a294e

SHA1
0f4c386be03cbaaf1eeab2cfb630140640381e34

SHA256
85328e5423827a07c627eff733be969d85172d181c4095502b18a1df743ebe5e

SHA512
05abfa0f6e03d2e28dcd19ed9fa1617717d7a1bc990a787785bf7ce9011672aed84fab684d34fd62fa225d02a02e5dfd8b45d0a11e002e4cbcc2a2f99823d871

Download Submit
memory/2032-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2032-17-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2660-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2660-1-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2660-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download