211b5add7d4c745b0fc50ae4539c1ebb47e3e7a071210a3f01c1ea5a678b9904

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/09/2024, 12:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe
Size

80KB
MD5

0166fdfe72f6977efbea2c72caa68e76
SHA1

15faa26f04348cf9e61943706aed97ed54f70e08
SHA256

211b5add7d4c745b0fc50ae4539c1ebb47e3e7a071210a3f01c1ea5a678b9904
SHA512

47607a7ead6d0f3005c209540b9d6262e329f5951119d0c8b38154087d4b7a0aae45f54f5b681061c770cc057caede4986e5dc1efd727961b2cd90477c261765
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOAkXtBd0+:T6a+rdOOtEvwDpjNtt

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1856	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1840	2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1840-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1840-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012101-15.dat	upx
behavioral1/memory/1856-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1856-26-0x0000000000500000-0x0000000000510000-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_0166fdfe72f6977efbea2c72caa68e76_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 1840 wrote to memory of 1856	1840	2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe	29
PID 1840 wrote to memory of 1856	1840	2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe	29
PID 1840 wrote to memory of 1856	1840	2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe	29
PID 1840 wrote to memory of 1856	1840	2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_0166fdfe72f6977efbea2c72caa68e76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1840
- 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:1856

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
80KB

MD5
773c0bf594fe088d25419c0b830653ee

SHA1
1cb47dd040223d9f31151e3bb6787f3f205f2c68

SHA256
79765e818b3e1aa7e08233b7833d282c7b8a92fd7fd699b8f61c8466c48f99df

SHA512
793230bd34f10922313eac7ef9ccc2cb4620c72d574f0294028efec417ee27ff0a51e636f56bfa9242fc611fdf00ac6f3b29660adf472140e600c2ebf250b345

Download Submit
memory/1840-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1840-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1840-9-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1840-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1840-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1856-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1856-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1856-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1856-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download