b47bc398ad0c7b4cc587053ba5308b1881f4923f2b1ae6e9edb15bcd0412a4f3

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:18

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General

Target

2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe
Size

66KB
MD5

f481a900bb9f3c045ebf3e6ccba5fa6b
SHA1

1bd9f668811ab50a836e8ee3c8c37f86860e0312
SHA256

b47bc398ad0c7b4cc587053ba5308b1881f4923f2b1ae6e9edb15bcd0412a4f3
SHA512

06df8ebf025cd0c734353448c581bc68d4bc6b0e769a8b2ae42efad81ae263bb76e056531d952f3e2dbbd1824c2a0a7640cfea956745cd45fa64746871107c39
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsi4i:BbdDmjr+OtEvwDpjM8A

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3704	asih.exe

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_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 3704	1276	2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe	83
PID 1276 wrote to memory of 3704	1276	2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe	83
PID 1276 wrote to memory of 3704	1276	2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_f481a900bb9f3c045ebf3e6ccba5fa6b_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1276
- 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:3704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
66KB

MD5
1d617ce99c5e6bffdd5b0967f0d1e71d

SHA1
e01841e47d59020918022f9b9deb6faf978e252c

SHA256
2c61dd78cadf43df402f198b5dffa8f4d18975e9c8a1d72f5cbd2502bda91e70

SHA512
4ccbcf33ad637111540e84353d08909391b9495889bb7c14c19865354aaa00e8a274251f1443d4a27b731b6af80e370f4e3a04d7ccdbc037edffce1b5c897e33

Download Submit
memory/1276-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1276-1-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/1276-2-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/1276-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/1276-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3704-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3704-21-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/3704-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download