9503b4cafa9f207019f8386fcfd130d8e5995febb3379d628aec5a93bcac2faf

Analysis

max time kernel
133s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01/10/2024, 05:24

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General

Target

2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe
Size

54KB
MD5

29bff1a0ee1d055cab28a371df4296b2
SHA1

203c236252212ffae96d0ab9e499c71b6ea2540f
SHA256

9503b4cafa9f207019f8386fcfd130d8e5995febb3379d628aec5a93bcac2faf
SHA512

1bb8c35d217dcf8ef6a751559a37b3bcd017ddd286f3691561eb2c58827b0076924d33b1c17faffcb1af168f9e373cf8a6e55d7cd99173ec4659efb3a184f7a4
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkV6E:z6QFElP6n+gKmddpMOtEvwDpj31ikVb

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1768	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2684	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-8-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/1768-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1768-25-0x0000000000500000-0x0000000000510000-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	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_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 2684 wrote to memory of 1768	2684	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe	30
PID 2684 wrote to memory of 1768	2684	2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-01_29bff1a0ee1d055cab28a371df4296b2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- 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:1768

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
55KB

MD5
90f239b0eeb96a7097d15c95c257013f

SHA1
4f7ef346ff2e557e85efab526f76ffac5a146daa

SHA256
7d54556cc66ec227f55e2314bed1f731eff7d1db6aaa9a548906303d2450ef9c

SHA512
247711fd8a2d4538e729cfa421b98d08b52d049b7b582daa929a884b67346bf16c920d11de9faed886e368f2e5237ec555153d155b43368a114c17b89f4df8ef

Download Submit
memory/1768-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1768-17-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1768-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1768-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2684-9-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2684-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2684-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download