17622108c1cd3ab38e96639628fb95f2008a99bca0e45aa393357eee89b78e6a

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12/10/2024, 03:31

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General

Target

2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe
Size

76KB
MD5

37862740f25efb4bf6a3aba26d05c92c
SHA1

b00cdfb05f1611ab2d0e9109cca924efed303b34
SHA256

17622108c1cd3ab38e96639628fb95f2008a99bca0e45aa393357eee89b78e6a
SHA512

2fc0c27112ed8667e55104920f19b76941ad0859147e9a18285eefe4fab58564c440ae56bf5cf85706c1d784eb4931274721aab0c03aa2905574dd2c64d65220
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsal81G3:1nK6a+qdOOtEvwDpj2

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
320	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
236	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/236-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/236-14-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012117-15.dat	upx
behavioral1/memory/320-25-0x0000000000500000-0x000000000050F311-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	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_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 236 wrote to memory of 320	236	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe	30
PID 236 wrote to memory of 320	236	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe	30
PID 236 wrote to memory of 320	236	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe	30
PID 236 wrote to memory of 320	236	2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_37862740f25efb4bf6a3aba26d05c92c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:236
- 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:320

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

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

Filesize
76KB

MD5
be0ad10e89819da2f8b1128928f19df6

SHA1
e6ddca886f7e7755de5f35ff4b4f0582e2eb9db7

SHA256
afa4c1f4f0fe21fd52948f3612581ad0c81b05a903c6ed2bc82a8b3627888198

SHA512
7b035c60e63d6905ef8e3c6967ac8c3ff21edf147acd09a698d0a68e64e309c10883fa858077b0d8a6a69b36e50fe4df4d649e44603de98cf7f26edb50968267

Download Submit
memory/236-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/236-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/236-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/236-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/236-14-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/320-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/320-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/320-25-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download