f2cd9834d181af09d130f4a35157c2868cfe262f1ce7e9bad6ceaaa39c652886

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/04/2024, 06:26

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General

Target

2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe
Size

39KB
MD5

1d407d41ecc5311635711de33f2bc25d
SHA1

f923c48a3468b9adadcc67c1af73e9a3ecf8e8d1
SHA256

f2cd9834d181af09d130f4a35157c2868cfe262f1ce7e9bad6ceaaa39c652886
SHA512

1bb19e3c05b40870cffc9f7d0e52ee37f5d8385ed6879cf863881876bcb428c06ed90773c49f42853405749a17b1b861442ebf81df765cc12a0228d9d626af8d
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLp6c:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012256-11.dat	CryptoLocker_rule2
behavioral1/memory/2300-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2300-13-0x00000000021E0000-0x00000000021EB000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012256-11.dat	CryptoLocker_set1
behavioral1/memory/2300-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2300-13-0x00000000021E0000-0x00000000021EB000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2392	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-04-20_1d407d41ecc5311635711de33f2bc25d_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 2300 wrote to memory of 2392	2300	2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe	28
PID 2300 wrote to memory of 2392	2300	2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe	28
PID 2300 wrote to memory of 2392	2300	2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe	28
PID 2300 wrote to memory of 2392	2300	2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_1d407d41ecc5311635711de33f2bc25d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2392

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
39KB

MD5
f654af1959f4bf46aa84b29edee4c0e4

SHA1
8cd2d9e75471cea99f2a70e8658e611dc10367ab

SHA256
78f713a356c6febbeaa652eea8f9630e81da7ca6b47a965619e4bc729a2bc3c8

SHA512
40d2cef762d4ca07d9d3433322386aaa5e93b270b4274044b4b6e2492d7d5eabeff456e3b54dca1976915f6513f183ee462db7892b6a88d6ce47b0094353b5c5

Download Submit
memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2300-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2300-4-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2300-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2300-13-0x00000000021E0000-0x00000000021EB000-memory.dmp

Filesize
44KB

Download
memory/2392-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2392-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2392-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download