70cbbefb43da1ae7f70268cfe7c0e34b8dc77c195bdc85f7131d2b76994e1c03

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/09/2024, 19:21

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General

Target

2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe
Size

89KB
MD5

552e07b7467cf48dd78ffde45ae47230
SHA1

59a16b84489fe1ff79c2e681b63d72669aceb995
SHA256

70cbbefb43da1ae7f70268cfe7c0e34b8dc77c195bdc85f7131d2b76994e1c03
SHA512

6256efdfedbaf402cada4ef64ecb0d438c28e30e0ae7b73ab7ebe1dacea9617d4ad46dc6f8b55c3561eec7a502bbb30371eb98c434d7ac10b918048d36d5de67
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpK:AnBdOOtEvwDpj6z9

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2292	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2984	2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2984-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2984-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b000000012233-16.dat	upx
behavioral1/memory/2292-26-0x0000000000500000-0x000000000050F000-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	2024-09-25_552e07b7467cf48dd78ffde45ae47230_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 2984 wrote to memory of 2292	2984	2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe	30
PID 2984 wrote to memory of 2292	2984	2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe	30
PID 2984 wrote to memory of 2292	2984	2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe	30
PID 2984 wrote to memory of 2292	2984	2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_552e07b7467cf48dd78ffde45ae47230_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984
- 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:2292

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

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

Filesize
89KB

MD5
194531c8b722307bb61c40f134bfb014

SHA1
55db4a1728efd8144a10957dc1976a0cbcfa4f74

SHA256
2f25e0841d5e04fe735a31a29be662b78799739073eb45537d6d1ae9bac18f7d

SHA512
87b897cd18ecc149042f7e4e35ab9fdb5f105706f676388499f02d5c2cdd284585de8b7bc18a735450f3109ff131d0266190ad79988168fd14e8f044dda83856

Download Submit
memory/2292-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2292-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2292-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2984-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2984-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2984-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2984-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2984-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download