72dcb633a37c36f8029fd809af44087064e8dfa9a40b402ec4e98cef71b7f2c4

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/09/2024, 02:33

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General

Target

2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe
Size

96KB
MD5

3ea94ed7e55158e412f511f156738e01
SHA1

b31361566d29fd5c7258927953dae2fd1854c3ee
SHA256

72dcb633a37c36f8029fd809af44087064e8dfa9a40b402ec4e98cef71b7f2c4
SHA512

08ca6509a09fad55799d709116e79b2747457aeb87ffb552e34bbccf10e02fd36eb4346ebd6194df763566f00da981a12dbe05c8c1fad313aa6a5c330780287e
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPH:AnBdOOtEvwDpj6zF

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1560	2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1560-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000e0000000162b2-11.dat	upx
behavioral1/memory/2672-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1560-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2672-27-0x0000000000500000-0x000000000050F000-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	2024-09-13_3ea94ed7e55158e412f511f156738e01_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 1560 wrote to memory of 2672	1560	2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe	31
PID 1560 wrote to memory of 2672	1560	2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe	31
PID 1560 wrote to memory of 2672	1560	2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe	31
PID 1560 wrote to memory of 2672	1560	2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-13_3ea94ed7e55158e412f511f156738e01_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1560
- 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:2672

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
97KB

MD5
71f37272634ab397662b8aad82e282f7

SHA1
6bfdb2054a4a40d3e592f7943b11d6b444927f54

SHA256
5a6215f3681208088ee91ed221505d4f7734d54abc3ea3b272489125d6f9061c

SHA512
e9c66d2f0b7d766520e594a2bb433a2d18cafc8d6079043791c06871229cd21809b49088572aaa7c1af83224ec1f7f4ab6cd1e1fb43177da7c98f91a59d4bafd

Download Submit
memory/1560-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1560-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1560-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1560-9-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1560-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2672-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2672-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2672-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2672-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download