77c838eb75f18fc94df0a28313111855527590dcbae043a7db8e12cbc77eb845

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
22/05/2024, 00:34

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General

Target

2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe
Size

77KB
MD5

7e4b3258d97c429d7d5abc580e1458cb
SHA1

bdf03f99f69c69151552b6717789d97e2762f1bb
SHA256

77c838eb75f18fc94df0a28313111855527590dcbae043a7db8e12cbc77eb845
SHA512

3a31b7af2fd7be6477c53d50e2653fec0b8d2ecc38603aee594da558478e918c177e6f5a14195912b8811931685ff512290cfb828c5132060a63b6aa1f2efcaa
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIufZ:vCjsIOtEvwDpj5H9YvQd2N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016a29-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016a29-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3032	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1752	2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_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 1752 wrote to memory of 3032	1752	2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe	28
PID 1752 wrote to memory of 3032	1752	2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_7e4b3258d97c429d7d5abc580e1458cb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3032

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
78KB

MD5
7f5f12ae98198c1f400c3853346be55f

SHA1
df5a691d9fc629b18c413cf48a7fa2b0f2a84320

SHA256
1b1f37a794ec7a5729492acad026b7dfdc9c55779092301a9387cbba8f6011e4

SHA512
da1e0f12caf5e1e7080f4997af91ce1d1c54f9283ecf3fd7b5ef3991cc4599d719149b02ae3dc9f0188e3eefc9b9aa30e7c876e21a5cd3ccea4f419b713be7a6

Download Submit
memory/1752-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1752-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1752-8-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/3032-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/3032-22-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download