5482d716846374215533de19398c40dda537a7289b3dd8347a18216a06ee9056

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
26-08-2024 06:58

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General

Target

2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe
Size

64KB
MD5

a553ecef3733d9f2b78bded7e98b08ee
SHA1

38d1b0728f3927b97492db8f1bad2ff4d9e7b46a
SHA256

5482d716846374215533de19398c40dda537a7289b3dd8347a18216a06ee9056
SHA512

77d6438bcc659e45bec8edf9209ede5f5ea6947540e1b28488a83cbe742301f65dea8bb17bbb4066134df14c5df48cb48449a032a4cf0b7f004e378b241d7736
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zY:0j+soPSMOtEvwDpjwizbR9XwzY

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1936	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012119-11.dat	upx
behavioral1/memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1936-26-0x0000000000500000-0x0000000000510000-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	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_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 2240 wrote to memory of 1936	2240	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe	28
PID 2240 wrote to memory of 1936	2240	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe	28
PID 2240 wrote to memory of 1936	2240	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe	28
PID 2240 wrote to memory of 1936	2240	2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_a553ecef3733d9f2b78bded7e98b08ee_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- 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:1936

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

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Downloads

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

Filesize
64KB

MD5
d04055737363ca74b724d90e7a4eae55

SHA1
91ebe1ee66c142031348dcd1fb41759af8a0bd1a

SHA256
7c90794c41ce45c132a25271301abda6a2bc940516fe5bb27f38b83c570e3e76

SHA512
cfd5a04457ea0c4840163fb48cf349064538e947b938302c2d6d913f376fb613faf2e00d6958af82bf5a45fe9b8bb514d820715220d2ee96d30415538c9e0195

Download Submit
memory/1936-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1936-25-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1936-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1936-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2240-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2240-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download