d70af4cb8a6927c4b07a3cbf9cdfa83d48d3457951e6403f647d58d6266a2cd2

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 07:39

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General

Target

2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe
Size

92KB
MD5

af93c1da288c2e853f7d3046b6253089
SHA1

acbce151c146637e466b540bebb08746bcb32780
SHA256

d70af4cb8a6927c4b07a3cbf9cdfa83d48d3457951e6403f647d58d6266a2cd2
SHA512

89873aa0ef43bdc1b63921fdb8b8e46e62a2567d3eba1a8bc944c39e56548b19db6a492d4f1577f2ef15f29e295f8a58e92db711d2967faf53a6af8ad9d7449d
SSDEEP

1536:f6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQApI0T:f6a+1SEOtEvwDpjYYvQd2Pj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012264-11.dat	upx
behavioral1/memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2220-24-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2988-26-0x0000000000500000-0x0000000000510000-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	2024-11-21_af93c1da288c2e853f7d3046b6253089_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 2220 wrote to memory of 2988	2220	2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe	29
PID 2220 wrote to memory of 2988	2220	2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe	29
PID 2220 wrote to memory of 2988	2220	2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe	29
PID 2220 wrote to memory of 2988	2220	2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_af93c1da288c2e853f7d3046b6253089_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- 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:2988

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
92KB

MD5
b8268cac03d131fff42d333d65f35c08

SHA1
653276cda0fa9013f833fec9975c310893eb3b95

SHA256
504e31a9d87e951cf31df9dd409a7077384accb0aecb0db4cef6b75b7c7ba0e7

SHA512
a2e252d6359956b6b0eb62647401ecba8f478d4e366e49181f35cc079284249585bd35fef317eaf700eeb4915a55a0bb66ee309b6fe566d95391b8ce75dec49f

Download Submit
memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2220-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2220-9-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2220-24-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2988-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2988-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2988-17-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2988-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download