1cb4e6946ee6758a95e2a6b2a7b0f53f9d54305c746564c51376b2704f850e6e

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/04/2024, 06:34

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General

Target

2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe
Size

89KB
MD5

4dbb5f1cf6d96e68fbcef4bf7e00daa7
SHA1

ea2e50ee27b61e1396418a294b536682d52d0cda
SHA256

1cb4e6946ee6758a95e2a6b2a7b0f53f9d54305c746564c51376b2704f850e6e
SHA512

470e39c338f5dd2b276e89a8ce1d31df7f39f2f46cab4afba29c39723b736193f777a396ba7df59618477c099080861fb177419bb45e90db6d76405aee9de5a4
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQo3:vCjsIOtEvwDpj5H8zPss

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122c3-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122c3-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1640	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2364	2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_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 2364 wrote to memory of 1640	2364	2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe	28
PID 2364 wrote to memory of 1640	2364	2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe	28
PID 2364 wrote to memory of 1640	2364	2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe	28
PID 2364 wrote to memory of 1640	2364	2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_4dbb5f1cf6d96e68fbcef4bf7e00daa7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1640

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\misid.exe

Filesize
90KB

MD5
dab99aed5d611e9a6cba36e909d64105

SHA1
5374798760712cc3efbf79e6bb800362e32f8153

SHA256
750ecf32c23877dde4437d7f113ebdf47f0472895d150e1212e0c7bb2ad454ff

SHA512
e8f3ae7f43c05dbfdaff557cb35b0f16a849fd484e1a2a8b4cd2f72128402eed1ab4a36bbc39cf50cc81c5b322e1b3d2abb62169b67b637df1c1e37fe9cd698f

Download Submit
memory/1640-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1640-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2364-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2364-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2364-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download