55d6ca1a4425c5d720e484e4349cb7a7402e48b43469c8a786c71681f745062f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 12:24

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General

Target

2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe
Size

63KB
MD5

07f949b9aaa58ab78099141921de6f76
SHA1

e5f80c4a9c2e0bf575f96d845fa1f10825fd58d6
SHA256

55d6ca1a4425c5d720e484e4349cb7a7402e48b43469c8a786c71681f745062f
SHA512

8e4f373d8915c7a255325e0b4145c71ac76808c38e325c391071eafae91e1e116a3325dc42cec819d14aa017161525252d09a5fbe17dd1308f7e0dba67a3d962
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zJ:0j+soPSMOtEvwDpjwizbR9XwzJ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2840	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1508	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a00000001225f-24.dat	upx
behavioral1/memory/2840-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1508-8-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2840-27-0x0000000000500000-0x0000000000510000-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	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1508 wrote to memory of 2840	1508	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe	30
PID 1508 wrote to memory of 2840	1508	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe	30
PID 1508 wrote to memory of 2840	1508	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe	30
PID 1508 wrote to memory of 2840	1508	2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_07f949b9aaa58ab78099141921de6f76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2840

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

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

Filesize
64KB

MD5
6e334774884d4d2cbb659e6a6dc90d42

SHA1
032514a06f9c8ec6f68fd18732848ace257cc33e

SHA256
ce4875fef89f8f7f9e6121e6cec2c70ae9baec35f162267dc4b9e8b743ba81f0

SHA512
e8591f3784060351ac45fd31f9d535fdd9467c88f87a7eb72c4038ddc12b3acf303f94a4e0f5df4892cc76d64bdc9176b038a815daf060070416dbe4fd97fca7

Download Submit
memory/1508-14-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/1508-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1508-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1508-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1508-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1508-26-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/2840-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2840-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2840-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2840-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download