b0ec1ce22588fc0c9c9f266180ca1f76856cff94d5d21a1cd7e989ccb096453e

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 16:27

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General

Target

2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe
Size

146KB
MD5

181d688fc7fee21f0aa19dfb3214605d
SHA1

d20ce18d90d09b1893447eb5525e529294f56f3f
SHA256

b0ec1ce22588fc0c9c9f266180ca1f76856cff94d5d21a1cd7e989ccb096453e
SHA512

081c043586dd42e372ff5e5afc845da6660b260554ca8ee06e1b66d8c987687f275f0cbebb537ad9a7f407874b031811134299ce5adcf1d06ffce2040d768bda
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPF++:V6a+pOtEvwDpjt22r

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

2716 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe

pid process

1932 2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2716	asih.exe

pid	process
1932	2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe

description	pid	process	target process
PID 1932 wrote to memory of 2716	1932	2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2716	1932	2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2716	1932	2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2716	1932	2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_181d688fc7fee21f0aa19dfb3214605d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1932

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2716

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
147KB

MD5
fe536c8e511e7451121320ccccb547e1

SHA1
bdf3c7cb66a9b35a056e7bbe7bc1f54fb908c30d

SHA256
5c0ea0872aa6d623ecfa4a6a51b6fa41250d48a852a56b7a3e1e6cf8cb05c975

SHA512
ca9d42e0e909282c902117ebfb034b30752146aefeb04a9f5daa609de0b7c632189aa2db3e94e1a5d0113b193072078646d3ee32e8e7e083711439b654a57cd0

Download Submit
memory/1932-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1932-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1932-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2716-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2716-16-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download