eccce834f921b8370dd5791cefb813d1e5e87f8ee21fa26ae6cb972a3b949ae3

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
11/04/2024, 08:47

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General

Target

2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe
Size

43KB
MD5

86b9a71e5d85c181dc0f460a23f77f8c
SHA1

547e8fd1513c2c977b6e4d921c9f5cc935c65e31
SHA256

eccce834f921b8370dd5791cefb813d1e5e87f8ee21fa26ae6cb972a3b949ae3
SHA512

129971ecf0b25e33b51a0c5fa59e04b0068a824c6ee558c9fcbca98dca217e77ffeb484e54a78c8dbb861d036216cac105ec764b2cb5aed72e277cdee3230f54
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhqhs:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D++

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1936-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e00000001224e-25.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1936-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1936-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e00000001224e-25.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2552	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_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 1936 wrote to memory of 2552	1936	2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe	28
PID 1936 wrote to memory of 2552	1936	2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe	28
PID 1936 wrote to memory of 2552	1936	2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe	28
PID 1936 wrote to memory of 2552	1936	2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_86b9a71e5d85c181dc0f460a23f77f8c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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
43KB

MD5
bd5cb84d49dcdc475f87face3c6de4e1

SHA1
18b20394aeae45c3f03cdca3992347b061a2d90a

SHA256
15295a542d24abb81a0f7b435097faf445973270fbfb84065b9edd01a8b252a9

SHA512
734f8ac782f84e182fcca4395136e50b1ea7c43987233878609019f5f3b499346acab5d989e39ef66134960fc14068ffe544a790253f437933561e65bfcae6f8

Download Submit
memory/1936-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1936-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1936-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1936-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1936-14-0x0000000001E20000-0x0000000001E2B000-memory.dmp

Filesize
44KB

Download
memory/2552-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2552-26-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2552-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download