56f0c52d2ea6064ac0a35e275bfb4f6349f3bc0d65ec8536191292436e1f0ed2

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
10-04-2024 04:00

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General

Target

2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe
Size

42KB
MD5

e58279fcc8e9246456ac55d2627b1a49
SHA1

e0d6ccbe4bb201dc548d9575c3f38209116d927a
SHA256

56f0c52d2ea6064ac0a35e275bfb4f6349f3bc0d65ec8536191292436e1f0ed2
SHA512

247d9fdc66b518bc9db3c894c95ff9c2301a6155c508c966749de256df65a96561169ebae87d86139df8ffcf59e2d8c1bc7862a64d6ceb876e0889c38f53474a
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphql:bc/y2lkF0+Beql

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2184	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe
2184	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 2184	2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe	28
PID 2336 wrote to memory of 2184	2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe	28
PID 2336 wrote to memory of 2184	2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe	28
PID 2336 wrote to memory of 2184	2336	2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_e58279fcc8e9246456ac55d2627b1a49_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2184

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\rewok.exe

Filesize
42KB

MD5
875be7586537442160f55fd10dfffcf0

SHA1
c5b42e1721d57499eb932749eea4c79bb463b065

SHA256
126964668c20ec74dd29a2d3d4339df226c3d55f07a58da9a1791b29e95e1779

SHA512
71a29594ac33ac827d2d6b63492be1e800d79f2d1c06dbeaee01a12d00998edfd5171c47cbeb2ac4368d93e4ecacfe5bd9e429f9622e6319434af46bd75b8087

Download Submit
memory/2336-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2336-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download