2a27ec27019d7fa0563c25ad8914dd898f096e7e6eb4744285889a74f59dddd4

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
19-09-2024 06:22

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General

Target

2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe
Size

96KB
MD5

00282fad0b79adb37927c172ed70bf2a
SHA1

4392e834c74439f0f8a8b3afc92599b25a6f8152
SHA256

2a27ec27019d7fa0563c25ad8914dd898f096e7e6eb4744285889a74f59dddd4
SHA512

de7dadb46a1648e5602a6e9d4d9890b68a135821acb88038f6bf270c4983901c9eb7d938fe063861f51183cae2c4bd6978be550abd214db61148e5c189f66824
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp+ofI5MK:AnBdOOtEvwDpj6zh

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2464	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2280	2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2280-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2280-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp	upx
behavioral1/files/0x000e000000013b4c-11.dat	upx
behavioral1/memory/2280-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2464-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2464-28-0x0000000000500000-0x000000000050F000-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	2024-09-19_00282fad0b79adb37927c172ed70bf2a_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 2280 wrote to memory of 2464	2280	2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe	31
PID 2280 wrote to memory of 2464	2280	2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe	31
PID 2280 wrote to memory of 2464	2280	2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe	31
PID 2280 wrote to memory of 2464	2280	2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_00282fad0b79adb37927c172ed70bf2a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2280
- 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:2464

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
96KB

MD5
7604a791c90ae56ed12ac357b70bb404

SHA1
cdadaf6d372b1e09d9be90b80f790083865a5740

SHA256
2052269e72f96aaecf33da04749c6cea1026c6fb60d15c83b8512e364c8640b5

SHA512
f3accf94ca4c4d3124b533d05797998f65832601af86afef3f66bddb41716f0a9456fceeab27d388b128eba2854a0be800875ad12eb8e9776bc46eeceae11e34

Download Submit
memory/2280-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2280-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2280-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2280-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2280-13-0x0000000002AC0000-0x0000000002ACF000-memory.dmp

Filesize
60KB

Download
memory/2280-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2464-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2464-27-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2464-20-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2464-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download