784a0d90d4ed884fbe82cd209b8399916e5db55668ad1a763b12402eae0def41

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/09/2024, 03:00

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General

Target

2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe
Size

59KB
MD5

95ba3d8462c5d3f5a99fb749c3069763
SHA1

0654c7441df416025fae9a6bd1b13d0e33530898
SHA256

784a0d90d4ed884fbe82cd209b8399916e5db55668ad1a763b12402eae0def41
SHA512

4e98fdcb6f2cbfa512960c451a06436b6680a613d698e880a60e53c8a3f75099d168c475ce7109e9f87b6f955a7c62dc34a5862033ce48301600acc42ee6f3ff
SSDEEP

768:f6LsoEEeegiZPvEhHSG+gz5NQXtckstOOtEvwDpj/WaD3TUogs/VXpAPWs:f6QFElP6n+g9u9cvMOtEvwDpjnpVXzs

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3032	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2780	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2780-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012281-11.dat	upx
behavioral1/memory/2780-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3032-26-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 3032	2780	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe	31
PID 2780 wrote to memory of 3032	2780	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe	31
PID 2780 wrote to memory of 3032	2780	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe	31
PID 2780 wrote to memory of 3032	2780	2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_95ba3d8462c5d3f5a99fb749c3069763_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- 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:3032

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
59KB

MD5
05f1da17b9ebb4c0bbf9c786361f7c34

SHA1
8a99cadf240fab043ae8e82c5bf4c26aa7801204

SHA256
5a80bc8d545114b8a9786e918cee89165d35dd8e171e1e3f9fdede05a87f8f45

SHA512
3bee36bc491384ce9a478c83a81fd63be97f2148951b20868c18cc58755e4ff09e603e7811f934ff51eb5a7e7caedf7b5ad55b38c8daaa9449e795bf1dc08788

Download Submit
memory/2780-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2780-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2780-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2780-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2780-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2780-14-0x0000000001DE0000-0x0000000001DF0000-memory.dmp

Filesize
64KB

Download
memory/3032-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3032-18-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3032-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download