01f049b169707dda1f4b8bb69d81cdb2b1c2370c115d8560b94224106d68ddf3

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 05:27

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General

Target

2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe
Size

86KB
MD5

c41ad1433ad571d623bea1bed5ef839c
SHA1

61315ab7bf27b4e14312a5d485ab544eeb7ad802
SHA256

01f049b169707dda1f4b8bb69d81cdb2b1c2370c115d8560b94224106d68ddf3
SHA512

86bd1529c91bbc411ff12f252b49e6d7a405fed0161f9e9c340aa9e167fb89652c4302722e6926e9dbb826caf475685b70ecb83348b6ac41130c8a0923d032c8
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalB93:1nK6a+qdOOtEvwDpju

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1536	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3016-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x000a00000001225d-11.dat	upx
behavioral1/memory/1536-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/3016-15-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/1536-27-0x0000000000500000-0x000000000050F311-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	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_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 3016 wrote to memory of 1536	3016	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe	30
PID 3016 wrote to memory of 1536	3016	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe	30
PID 3016 wrote to memory of 1536	3016	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe	30
PID 3016 wrote to memory of 1536	3016	2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_c41ad1433ad571d623bea1bed5ef839c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- 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:1536

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\asih.exe

Filesize
86KB

MD5
3cce47af569fe035e92692238cf68627

SHA1
d50bc47a7f04f4512aa8ff15076804c5c48a9004

SHA256
7fe7b03354790ee0fa63407e70fab1b472f2eecef3b6e830530b196e8cb8ddd3

SHA512
5ba62581ab7fa3e40a776e06150f0859102c2f39e58fe2301e4197d1d7a8424f3d67774122bd3e6ca88c21b0ab4cc021d1948c6ba086d13100b1e7a416b4a4d8

Download Submit
memory/1536-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1536-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1536-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1536-27-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3016-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3016-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3016-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3016-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3016-14-0x00000000022E0000-0x00000000022F0000-memory.dmp

Filesize
64KB

Download
memory/3016-15-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download