95575fd21d194f9906a84d2a43579f8f0092d4170af124be5d5f4f04e7492f6b

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
11-02-2024 20:25

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General

Target

2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe
Size

32KB
MD5

1e58a4c01e67a544395235880cea115a
SHA1

a0537560dc63e5a6dc8ad894b3414a2d4f5d91b6
SHA256

95575fd21d194f9906a84d2a43579f8f0092d4170af124be5d5f4f04e7492f6b
SHA512

7e4927bd714139527beb3c303f4f55983db3baaf89d258ccfe0de107cc66571fd59cd7628084862bf7f0bc161df86b67d1433b63ff7a08c51bd1874fc41c9d25
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3q4v:b7o/2n1TCraU6GD1a4Xt9bRU64v

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012260-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2464	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2392	2024-02-11_1e58a4c01e67a544395235880cea115a_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
2392	2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe
2464	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2464	2392	2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe	28
PID 2392 wrote to memory of 2464	2392	2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe	28
PID 2392 wrote to memory of 2464	2392	2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe	28
PID 2392 wrote to memory of 2464	2392	2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-11_1e58a4c01e67a544395235880cea115a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2392
- 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:2464

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\rewok.exe

Filesize
32KB

MD5
0c3836be6c350487e9d826790457f342

SHA1
bc1bc8605b3b5327c89f6e415dde4d5853ca2d87

SHA256
f199324cada557b0e43028c88578cbb4aa8a05a7e9762ceba9b781f7ab7d789e

SHA512
815d24121461dff65c82eb9418772922065bbf7ce5e2e9d3781d7d8d11f25142370dd59e1647aa44f677a82c9eea9ad5c1ea3381c92bd4db36f2c2f874c10ced

Download Submit
memory/2392-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2392-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2392-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2464-17-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download