e7163b6fb584c44ecc6575a0c58c7e82dba17cdd92e06e6d4ac20a84d82e6c32

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14/10/2024, 23:46

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General

Target

2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe
Size

38KB
MD5

329f642b45f5a75be9c800c1fd1c1069
SHA1

e90e8b4046b96884c968ae4090e005417c635603
SHA256

e7163b6fb584c44ecc6575a0c58c7e82dba17cdd92e06e6d4ac20a84d82e6c32
SHA512

8bd7b384dc3b8a5de6ce802cdf74cf016ad43600f28e324bd53563ecd39ab2ebf2949887fb9de66b4392b9fb9b19b8a735d3989b458735a24da4ba9265d27d7c
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITi:qDdFJy3QMOtEvwDpjjWMl7Ti

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1708	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2244-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012118-11.dat	upx
behavioral1/memory/2244-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1708-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1708-28-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1708	2244	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe	28
PID 2244 wrote to memory of 1708	2244	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe	28
PID 2244 wrote to memory of 1708	2244	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe	28
PID 2244 wrote to memory of 1708	2244	2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_329f642b45f5a75be9c800c1fd1c1069_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- 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:1708

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

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Downloads

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

Filesize
38KB

MD5
a100bdddbfa125b43dfdc136fd788c6b

SHA1
b64879ed5e61f1d5a405800a784a8adbafeb0217

SHA256
6fbc132a6dd42476544c06ab7de22fd53c45a3c58a052a1fd3e5869154ffbacd

SHA512
01fa118118d1b4dd9f2cff73c7cf7e91d76d9cefa95210081ac2b8e91883b41dedc45c238debc784775f6cade13ee07d82bd41aa5d150db229ec0ce80dadfa69

Download Submit
memory/1708-20-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1708-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1708-27-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1708-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2244-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2244-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2244-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2244-13-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2244-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download