fb59093b6283cd2327765ac1331996064386085da6d0d9b9f554ad789fa895aa

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 04:34

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General

Target

2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe
Size

85KB
MD5

6081f009355cfca64950162181716be1
SHA1

9e7825141d9fa0393538740cce293fb996207635
SHA256

fb59093b6283cd2327765ac1331996064386085da6d0d9b9f554ad789fa895aa
SHA512

75f3fc79302806975317f15a1a01441571d16d7bed2a465134d3c037189d33621377c175682119eeea9a777dbe293b2c49d6409707b8eba54ba63a5b52f23177
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgcfR:AnBdOOtEvwDpj6zE

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2240	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2936	2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2936-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2936-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0008000000012117-14.dat	upx
behavioral1/memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp	upx

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	2024-09-27_6081f009355cfca64950162181716be1_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 2936 wrote to memory of 2240	2936	2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe	30
PID 2936 wrote to memory of 2240	2936	2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe	30
PID 2936 wrote to memory of 2240	2936	2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe	30
PID 2936 wrote to memory of 2240	2936	2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_6081f009355cfca64950162181716be1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- 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:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
86KB

MD5
f3c97c8d6617e435f45a851e14956ead

SHA1
ebb8699369c6bd9d1913dd1fc19f959fdb28662a

SHA256
602861ad9b9f725211734987c307e3508c94cc3fe776d6c88614bdf2387826ee

SHA512
e944acfbe58f1f7b41ad1475820939549f49009e8484adf20fe1216d1c12e4d434803df27dd96de5cc9c03117b26fbee37fac1a6610eb0a9ed37fbd1df35ee10

Download Submit
memory/2240-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-19-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2240-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2936-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2936-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2936-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2936-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2936-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download