a189ad4a20a27612d31fe5c380bd9d8c186ba28035dd72fa88bb16a246ca9ecc

Analysis

max time kernel
131s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 05:29

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General

Target

2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe
Size

53KB
MD5

805e3bd866b993d6b8fe3759ac4cfbf0
SHA1

d985a0ebc6a48c3eda3bbcfffaee034d33f7df79
SHA256

a189ad4a20a27612d31fe5c380bd9d8c186ba28035dd72fa88bb16a246ca9ecc
SHA512

17cd3700c89444c17049572ddc2ac92424963af6706ae686fa5df7dd9915535724d3def12c203d7ac9366955f6702382b6bd909416e7ff7062383f0854b7e427
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOk/A:z6QFElP6n+gKmddpMOtEvwDpj31ik/A

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1288	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1288-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00090000000120f1-11.dat	upx
behavioral1/memory/1288-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3012-25-0x0000000000500000-0x0000000000510000-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	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_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 1288 wrote to memory of 3012	1288	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe	30
PID 1288 wrote to memory of 3012	1288	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe	30
PID 1288 wrote to memory of 3012	1288	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe	30
PID 1288 wrote to memory of 3012	1288	2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_805e3bd866b993d6b8fe3759ac4cfbf0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- 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:3012

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
53KB

MD5
344f08e8517d0215e332b5886a1145b2

SHA1
d5c151137590d25a8c638553d096ee82552db391

SHA256
c6822d06c3ac1b2bcfbf1c196042bc63fc6ab5aa6a425da0e4558a0325aff4bb

SHA512
02bf138b69c206da202fb71b163334932a3d1c4ab5f26fa7421796019c3e9a1a3a24569aced2d3f4048d5770cc60f213bfc891eff2c0bfbb5550c46ac11be488

Download Submit
memory/1288-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1288-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/1288-9-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1288-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1288-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-17-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/3012-24-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3012-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download