1af69aabbfa7ba6cc8579c04368f5d61a1f1d8d407c0e620438d111142cba128

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
14/09/2024, 06:40

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General

Target

2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe
Size

69KB
MD5

edd7e49ec645a4452ac24990a8b694fc
SHA1

3bc86dd43458efd5f0f60bc6470359521ef3a138
SHA256

1af69aabbfa7ba6cc8579c04368f5d61a1f1d8d407c0e620438d111142cba128
SHA512

8d463251732ed17032282504d2f0c2978fcc9a88048cbfeded72dc9851b7fbaeb81014240a127e10ce2e2c116064f0162a8409c1c639b0961752750d85fee6b3
SSDEEP

1536:quJu9cvMOtEvwDpjWYTjipvF2bx1PQApq:78SEOtEvwDpjWYvQd2PA

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2696	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000b0000000122cf-14.dat	upx
behavioral1/memory/2696-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2932-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2696-27-0x0000000000500000-0x000000000050F000-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	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_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 2932 wrote to memory of 2696	2932	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe	31
PID 2932 wrote to memory of 2696	2932	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe	31
PID 2932 wrote to memory of 2696	2932	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe	31
PID 2932 wrote to memory of 2696	2932	2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-14_edd7e49ec645a4452ac24990a8b694fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2932
- 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:2696

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
69KB

MD5
7dca39b8e9e5721b56d49b442f4764f5

SHA1
5915464f4561652ccbd1107facb2f425b58be166

SHA256
d9901f247e35c9de45182186ea0dba14f3e4fcb8629a8f3b007a38c9813d4dd0

SHA512
99775e628380823fcef224d5ac54f46ad5c019c5e15cc272bb88a4d284f9375909b23a30dc4d8d17bc3272a2dfd9a4b795a18625d4fe91c78a98ac5f3aa36cbb

Download Submit
memory/2696-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2696-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2696-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2932-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2932-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2932-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2932-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2932-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download