d447ee5e77c643183345746f70677d9ae869d4258073889914b8ba6c3a7fd476

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/09/2024, 03:35

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General

Target

2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe
Size

65KB
MD5

6f9f57af77054eab4d336290929be1a4
SHA1

529ce6f6944bceeb56411aeced578082367ab235
SHA256

d447ee5e77c643183345746f70677d9ae869d4258073889914b8ba6c3a7fd476
SHA512

7f6fad0db58489328408451b68e3d503e41c909d3f08466e24e7810de180006c660c98afc0a219639adb66ba02a08d21490307eb2f44372b76843620479cfd43
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAoS:1nK6a+qdOOtEvwDpjI

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2752	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2828	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2828-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2828-14-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012117-15.dat	upx
behavioral1/memory/2752-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2752-25-0x0000000000500000-0x000000000050F311-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	2024-09-25_6f9f57af77054eab4d336290929be1a4_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 2828 wrote to memory of 2752	2828	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	30
PID 2828 wrote to memory of 2752	2828	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	30
PID 2828 wrote to memory of 2752	2828	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	30
PID 2828 wrote to memory of 2752	2828	2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_6f9f57af77054eab4d336290929be1a4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2828
- 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:2752

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
65KB

MD5
0aaf2174b958b7bb905d6855cdf8f4b5

SHA1
16c77570f4e4d286987bd3ca3f1b23cfdc386bb3

SHA256
9dfe2f1cefd1d54ed7285ecf9908e4a0102378159f7ef92a9af8b32da45bb697

SHA512
7bba3cf3fd04ea01547579524d84ba74b223fd6e7190a7b0a45e2107ffcfca15ee4d108e9f4203eac1894f9ba61ef3c60371bc0cce2ccfc99fa99e88cf4a2b0f

Download Submit
memory/2752-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2752-25-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2828-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2828-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2828-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2828-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2828-14-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download