c04f0022b3addb2aa409b4394d750d89ffb8e371f40bf569c68356e4e78e3d52

Analysis

max time kernel
141s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 10:24

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General

Target

2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe
Size

48KB
MD5

179d2dc71b277f2e8835403996f7a01d
SHA1

0e3f39bce36308e62040d6a3b8f4f28631ec32ea
SHA256

c04f0022b3addb2aa409b4394d750d89ffb8e371f40bf569c68356e4e78e3d52
SHA512

eac6ed29f5719fa99ea54ab1945000a77d22f1c7c7f5d6d16e27835781ca4a0f69a378f855d8928bf2273604f1ef6956dca36d099c1829d3112b2303a831288b
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZr:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012287-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012287-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2800	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2760	2024-02-18_179d2dc71b277f2e8835403996f7a01d_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 2760 wrote to memory of 2800	2760	2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe	28
PID 2760 wrote to memory of 2800	2760	2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe	28
PID 2760 wrote to memory of 2800	2760	2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe	28
PID 2760 wrote to memory of 2800	2760	2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_179d2dc71b277f2e8835403996f7a01d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2800

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
48KB

MD5
79ff7849f9be470b0173f7d828ed904f

SHA1
25650aae501e974e1a01c47bc7ad78a8798f51a1

SHA256
e86049646621643cfe99e62ed131c0634e31b82ff543b1b18b71b58259e8bd75

SHA512
bb59a9d6c5d8953f5f194af9d010fb25329a222a0cda203e9a52d1e75c2c1842bd93e73cd88d69d1272fbf6fd3095816e628b9273550ac72276304605778dac6

Download Submit
memory/2760-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2760-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2760-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2800-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2800-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download