f79bda8b9732f88d78f116920c2482c204796ec8e8b3dcbff506b70d3f140242

Analysis

max time kernel
131s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 01:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe
Size

76KB
MD5

4750fe14edba93d9b45cab34c4e7ce5b
SHA1

d4e943d7caa6deca321d102565abe6b0f0ef7e67
SHA256

f79bda8b9732f88d78f116920c2482c204796ec8e8b3dcbff506b70d3f140242
SHA512

5204a13c7bf79f1113ce3eadbbaa2f8d4db523d61754da88d1e2522fcfee7db0145fa31f29051b583685da0bdac802f6d39d650be18c148bb360737ec8584463
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsal81GR:1nK6a+qdOOtEvwDpj0

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2524	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2344	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000d0000000122e4-23.dat	upx
behavioral1/memory/2344-14-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2344-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2524-24-0x0000000000500000-0x000000000050F311-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 2524	2344	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe	30
PID 2344 wrote to memory of 2524	2344	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe	30
PID 2344 wrote to memory of 2524	2344	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe	30
PID 2344 wrote to memory of 2524	2344	2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_4750fe14edba93d9b45cab34c4e7ce5b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- 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
  - System Location Discovery: System Language Discovery
  PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
76KB

MD5
84d0706cb2b086e1a232ef8032f831c6

SHA1
57d1b8129de2c93e7a614f755e394da46c85e871

SHA256
5069a2b0a48f71e4dd7d301aee0a8e41e85faf6c902a6f3f81ab7d8a2edad908

SHA512
b062c8ab1a9f11f476d9134d0096235911f653b3f0bbc228634094d8a31cdc6b332792e5a7c0022a9cc99dfc34762736706a9cda0a93578c1d5036c51f8ac858

Download Submit
memory/2344-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2344-14-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2344-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2344-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2344-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2524-17-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2524-24-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download