f5808217513031338d8b92e6959c1b0252d332a907a32d77d3640d60bae21898

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:57

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General

Target

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe
Size

96KB
MD5

e91d203ab3f0343063ecea12d1476535
SHA1

cc3dae17cb193d99e92650e7b39d9945a9b7e8e3
SHA256

f5808217513031338d8b92e6959c1b0252d332a907a32d77d3640d60bae21898
SHA512

cd2ac5ce1e64c08b198504e8cd24f7c5083d76e37993b6651902d09c627f32a3315471c68b09243b50e0d54a502f3bcbfc6003460cb0986a032c9339d84aad19
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpJ:V6a+pOtEvwDpjtzW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3044 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

pid process

2344 2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3044	asih.exe

pid	process
2344	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe

description	pid	process	target process
PID 2344 wrote to memory of 3044	2344	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe
PID 2344 wrote to memory of 3044	2344	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe
PID 2344 wrote to memory of 3044	2344	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe
PID 2344 wrote to memory of 3044	2344	2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_e91d203ab3f0343063ecea12d1476535_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2344

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3044

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\asih.exe

Filesize
96KB

MD5
22b7938c64fb3f52974d1193e82fe688

SHA1
909ab4a4ff645090d71e1c946c1284fb0bec80d1

SHA256
59f266e2b31be8eee7cc54edcf5108e41187510ddd1652c498f19528840853d4

SHA512
9b2c1597597ad0a14943544240f9f1bf511f5b485161719b24b49a3d02b50a76722d6628512608fee3365b362a6a14bb6caa5427aad5b61774f2b19f2fdf8685

Download Submit
memory/2344-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2344-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3044-19-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3044-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download