288d52e344a85b748a648bbb322e5c54957f4ce31aed0a54f4c439a16b88936e

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
05/09/2024, 11:07

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General

Target

2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe
Size

62KB
MD5

909a250c720704210af136aaccf90f81
SHA1

3ef4153d918d8ccb09f5dbf75f441f2dab253467
SHA256

288d52e344a85b748a648bbb322e5c54957f4ce31aed0a54f4c439a16b88936e
SHA512

8a43c2ce9fbfb9c8a2e8c5cc21e78ba31249a4079088d057e8fdcc1cb7951ebb9655353c4ccd5cf49f90f08efe621d9669e61f3cbf7d2a0568ccc1811673c676
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhE:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhE

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2052	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1636	2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1636-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/2052-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1636-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2052-26-0x0000000000500000-0x0000000000510000-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	2024-09-05_909a250c720704210af136aaccf90f81_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 1636 wrote to memory of 2052	1636	2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe	28
PID 1636 wrote to memory of 2052	1636	2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe	28
PID 1636 wrote to memory of 2052	1636	2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe	28
PID 1636 wrote to memory of 2052	1636	2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_909a250c720704210af136aaccf90f81_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1636
- 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:2052

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
62KB

MD5
06aecf3eaddb88f5750c4bbf86b50cb0

SHA1
1e70c163f9344511ab6d3916a1189edde38432a3

SHA256
f5a282ad3dd8b0a40a60c80ed892d526b1184631f3bebb0e7bdc2451f9ec7fd5

SHA512
6de5afaf4bb1d40e18518d7ca3ffb843b6ce33004ca865b4baa2aa780804a776aaa05db4109b74b5d5fc392c385508971c710f4ad669a93a447e45aba3499aaa

Download Submit
memory/1636-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1636-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1636-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1636-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1636-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2052-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2052-25-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2052-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download