a1d532f73522db4fae6e7846ed27f8ef8b174ab1cfc3254f890f76fdc09f7b9c

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
24-01-2024 08:29

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General

Target

2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe
Size

89KB
MD5

61561b3eae4ffa411f182ce7cd12b9aa
SHA1

165d6e4d32f1a4137a744e7108edf193130dd62d
SHA256

a1d532f73522db4fae6e7846ed27f8ef8b174ab1cfc3254f890f76fdc09f7b9c
SHA512

0527c2b4dbc3c7e75579fe51ae341ed71f3eb843db2ad164db10586531db7be8872ca07b2be022a1a8feb369ef8225c31e1c3c519343420e621087bc3afebbf7
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQY00P:vCjsIOtEvwDpj5H8zPsvM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1860	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2152	2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_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 2152 wrote to memory of 1860	2152	2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe	28
PID 2152 wrote to memory of 1860	2152	2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe	28
PID 2152 wrote to memory of 1860	2152	2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe	28
PID 2152 wrote to memory of 1860	2152	2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_61561b3eae4ffa411f182ce7cd12b9aa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1860

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
89KB

MD5
0072c9ffad3112e1dc4cd4f7160a0611

SHA1
05ccc6179e78561d2516674018b2970abc15c804

SHA256
3ed3712e7fd666fdb8a51d5fe96914a926fc3a46ba209866fdd951415661faa3

SHA512
4b1ce11b338b8c703a8ada852d964bd5c8b4ba723f285262390f95cf9871b4683ee0feef12b400428ac3d5266bc1662311051d32113f9a240a68b5c095a07654

Download Submit
memory/1860-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1860-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2152-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2152-1-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2152-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download