261eb17314529b3f482a27c70573785a129e733bad7de5fe77c819b139f104c0

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 05:16

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General

Target

2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe
Size

45KB
MD5

d325c6663da29cfe39878e79cecedefe
SHA1

fae7e6b07913c3e878ef154ddb2790d910c9d16d
SHA256

261eb17314529b3f482a27c70573785a129e733bad7de5fe77c819b139f104c0
SHA512

a4a54c4d41391dae6c68916e33a4294931050ba40f003cf7940b0671c5bc0e0a70f62004a95462b5fc913f37139f3d11a3e99d4647a692ff373e056bfabd3c56
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedm+My1j5T:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000800000001227d-11.dat	CryptoLocker_rule2
behavioral1/memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2508-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000800000001227d-11.dat	CryptoLocker_set1
behavioral1/memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2508-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2508	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1916	2024-02-24_d325c6663da29cfe39878e79cecedefe_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 1916 wrote to memory of 2508	1916	2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe	28
PID 1916 wrote to memory of 2508	1916	2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe	28
PID 1916 wrote to memory of 2508	1916	2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe	28
PID 1916 wrote to memory of 2508	1916	2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_d325c6663da29cfe39878e79cecedefe_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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
45KB

MD5
9a80525a673e51853a9b16af3c3b9eac

SHA1
28437ecacf1bac0182539df37328f9d50015d678

SHA256
9f674f718dae728a184f1e49d15812f79fcb9b01683344aa327e200a99214c23

SHA512
3f331728fd873a3edfb08f450586bb74ef41d6ca33a6d66dbf7773bfbeb29bb567eb007b4d28cbd2ca1159b5837ae19af0031e2f6ea18ac094ecc9699e85b4f5

Download Submit
memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1916-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1916-3-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2508-19-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2508-18-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download