0e85d77415e732e1909a83bfebafab19a947a9c2be6c8699a31d4a20f9329246

Analysis

max time kernel
132s
max time network
143s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
18-10-2024 07:10

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General

Target

2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe
Size

70KB
MD5

de775c57f60c4d5399f04504ed9872d6
SHA1

2ab203347f7e357a8501fcfcb11e75b5e4b85ad1
SHA256

0e85d77415e732e1909a83bfebafab19a947a9c2be6c8699a31d4a20f9329246
SHA512

d1b944a85a1b059f113439aa9e6daa3785b1a10b4ac28b3847fbe512f118c4bad4c474e8e3993f8579dd80731cad4f8a830de97e11e1f78f646f35a290a8a6c9
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeB+8x7N:z6a+CdOOtEvwDpjQT

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1816	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1652	2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1652-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a0000000122f6-11.dat	upx
behavioral1/memory/1816-25-0x0000000000500000-0x0000000000510000-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	2024-10-18_de775c57f60c4d5399f04504ed9872d6_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 1652 wrote to memory of 1816	1652	2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe	30
PID 1652 wrote to memory of 1816	1652	2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe	30
PID 1652 wrote to memory of 1816	1652	2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe	30
PID 1652 wrote to memory of 1816	1652	2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-18_de775c57f60c4d5399f04504ed9872d6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652
- 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:1816

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

Replay Monitor

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Downloads

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

Filesize
70KB

MD5
d0494abbd890fef2c9ff3cf944673886

SHA1
79cab852c225e938624e54391554ff995dc9354d

SHA256
ec28613422366af5d05450ad3e0522017bc7953a8a9766c2f2562fa0aa3ac7d9

SHA512
98270c604bf9a2e7d5b02ef4dc46a5f6777ebf83511b80933cbf73274742df511cf7dd5d0cc81244b21ffcb00cec28bf7fb49e1ad1af24e83a8bbbc7cc4367bf

Download Submit
memory/1652-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1652-2-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1652-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1652-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1652-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1816-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1816-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1816-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download