a93c2771e109ae96efd85950e5173b5e8be625a3e54c70c207df61848e3d2718

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 07:04

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General

Target

2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe
Size

38KB
MD5

aba1e0e1aea837d84d8f22a35513b1ff
SHA1

90c017006593756602aaf56e648085397ae5eb2d
SHA256

a93c2771e109ae96efd85950e5173b5e8be625a3e54c70c207df61848e3d2718
SHA512

fd9d9c646f35f9c931848dbd4c52789e1ac4caf5ea5004b88c53e70e0d0b62cb7cbd1c9a9d635438fb3ab996223a74c253a128c62ee47d01eba47bfb1cb69988
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITN:qDdFJy3QMOtEvwDpjjWMl7TN

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012281-11.dat	upx
behavioral1/memory/1984-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1972-27-0x0000000000500000-0x0000000000510000-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	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_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 1984 wrote to memory of 1972	1984	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe	30
PID 1984 wrote to memory of 1972	1984	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe	30
PID 1984 wrote to memory of 1972	1984	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe	30
PID 1984 wrote to memory of 1972	1984	2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_aba1e0e1aea837d84d8f22a35513b1ff_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984
- 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:1972

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
39KB

MD5
7933b28929a140bb66b64e05719dc57a

SHA1
8e2f32b1c54456880f8bfaf0f0ed6968985cbb39

SHA256
468f86f5fbcf5d83fed8770eda8fe5c7dee981ace1c32107900a43215eaf6882

SHA512
0446f0c7e9666ec21bc1e80d7214126deb98fc9c2bd558d2682a4f1aca2db5669d227cbd535fca3acbad60dea60ba6411b7907a44e73af3093bbfa0fa6177da2

Download Submit
memory/1972-19-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1972-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1972-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1984-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1984-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1984-9-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1984-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1984-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1984-26-0x0000000000420000-0x0000000000430000-memory.dmp

Filesize
64KB

Download