e10dae50e530df6437f3011136cbb8082c00238566bad30f8b0124780289f7ac

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:38

Target

2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe
Size

31KB
MD5

70ea8fb49c2a59e6d4ff42e1c15f1b31
SHA1

129fb3bcbe2bd87cd2bf2e66bf2cdd87d915377b
SHA256

e10dae50e530df6437f3011136cbb8082c00238566bad30f8b0124780289f7ac
SHA512

b86cc23fd639cd727dd87e1a30c835a37228bff6dbe49c313a7d4220076cbe9f995ca7fea1b735573e2d4598f92baebff8df5e984e7008bd5542b52725916e6f
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTjA:bG74zYcgT/Ekd0ryfjfA

Score

9^/10

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1740-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\hasfj.exe	CryptoLocker_rule2
behavioral1/memory/1740-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2172-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2172-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

2172 hasfj.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe

pid process

1740 2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2172	hasfj.exe

pid	process
1740	2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe

description	pid	process	target process
PID 1740 wrote to memory of 2172	1740	2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe	hasfj.exe
PID 1740 wrote to memory of 2172	1740	2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe	hasfj.exe
PID 1740 wrote to memory of 2172	1740	2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe	hasfj.exe
PID 1740 wrote to memory of 2172	1740	2024-05-22_70ea8fb49c2a59e6d4ff42e1c15f1b31_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:2172

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
32KB

MD5
b1153b9b35815c3e61b5c11cf00ef38f

SHA1
c5dac9e8a5a27b9b5085101b1d3ba2af5679db8b

SHA256
58643ecea364e2385d719fc98a562e932db5680cf689096dcb186c1a16888939

SHA512
af5f68f2577f0a0304881e5161ca32beeda5a3c80c784570996af291bd7f6dfedfe4305567356108f20c9a7300bbeee8dbd3fc4d0645a0cd537a450580365a59

Download Submit
memory/1740-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1740-9-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1740-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1740-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1740-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2172-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2172-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2172-25-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2172-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download