5c474ad42b81c52eb39151e3fdfd345865c4ee6bb23c16d41d21f65fbf9240af

Analysis

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

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:40

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General

Target

2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe
Size

148KB
MD5

e7fb8607ddc8db464294f6e6e0699189
SHA1

5f471569277efbae5621ca0d93cd32eb6b6b48a2
SHA256

5c474ad42b81c52eb39151e3fdfd345865c4ee6bb23c16d41d21f65fbf9240af
SHA512

68a4b3786ef4ccf6ba2da75bdc360c239d92e6bbdf3abf23c5b51ee5213e4f7ca99d2e9a53d142c7eed52058dd89abacb0234453602d5003486db3bb91053780
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFYfN:V6a+pOtEvwDpjt22M

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

2364 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe

pid process

2724 2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2364	asih.exe

pid	process
2724	2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe

description	pid	process	target process
PID 2724 wrote to memory of 2364	2724	2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe	asih.exe
PID 2724 wrote to memory of 2364	2724	2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe	asih.exe
PID 2724 wrote to memory of 2364	2724	2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe	asih.exe
PID 2724 wrote to memory of 2364	2724	2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_e7fb8607ddc8db464294f6e6e0699189_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2724

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2364

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
148KB

MD5
55dfbaa67497091ede80f0f4b4c6e9b1

SHA1
d7c7b09bc7745cac5c5a74f6f6fa5a988b5df758

SHA256
1b7b6e712681cd59a0274592318859f484a9a3ec7e190b8a099cf16334f637f7

SHA512
41f94367f21af57e0814dccfa105739d8640242d3e32d29335f7e1e8657fcbce22d1587f5e99d7c246e841f365df1787549394dbb32eee4a83488aaf276c32ed

Download Submit
memory/2364-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2724-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2724-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2724-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download