408966a8729b13d8f82ae75f1b862f5bbb0f0f51f3581dfd0687c57aba3b0883

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 10:23

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General

Target

2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe
Size

124KB
MD5

04add947290c78972d315e3b9a988050
SHA1

e32a5955bbf929e6df824bae6e97744c2f6cc12b
SHA256

408966a8729b13d8f82ae75f1b862f5bbb0f0f51f3581dfd0687c57aba3b0883
SHA512

c1cc455ca98bba1d9dc43242c8d03458e9f7a5c62b5a542233f9c252a68e29469138119dd8c3ce8efaad5d727524414604114759de189ceedf80042496bdefd0
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgdlS:u6a++OtEvwDpj6ze

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-03-10_04add947290c78972d315e3b9a988050_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 2192 wrote to memory of 1672	2192	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	28
PID 2192 wrote to memory of 1672	2192	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	28
PID 2192 wrote to memory of 1672	2192	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	28
PID 2192 wrote to memory of 1672	2192	2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_04add947290c78972d315e3b9a988050_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1672

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
124KB

MD5
7246698e118f01ac3171034f69259382

SHA1
0d78290fe1fb9573e0978cc431c50a1e5af68d1c

SHA256
a845fd4009874e9236ed249ffbff86c36eb633526b9d221b2feb09bb7f106e44

SHA512
0d1806c05b24c4fb30d72190d32e7c544dde3805c0f879946212205d8639f475b8a212e087b50b41ed75e6ce489ce4e0835944e5c406271ab0a13949e79f005e

Download Submit
memory/1672-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1672-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2192-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2192-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2192-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download