0bf2d6193623b0a83618082bb5cdfc83a3764dc996c32811ee458cb5ac7c51fc

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 02:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe
Size

41KB
MD5

44975a7960b42086661b80808f58ba91
SHA1

8479c662289bc43e16f8953626f1179eb1ac7b6a
SHA256

0bf2d6193623b0a83618082bb5cdfc83a3764dc996c32811ee458cb5ac7c51fc
SHA512

75fb6118f1180b8f95576fca17e7b90398769e390c566485ed43003aee5e6cf8b0fa3c21fd55349508188e57a7e0e0baf8a62b0b0512db3c2df6eb5c1c0319d3
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9Ff:qDdFJy3QMOtEvwDpjjWMl7TO

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1744	2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1744-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1744-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120fd-11.dat	upx
behavioral1/memory/988-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/988-27-0x0000000000500000-0x0000000000510000-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	2024-09-19_44975a7960b42086661b80808f58ba91_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 1744 wrote to memory of 988	1744	2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe	29
PID 1744 wrote to memory of 988	1744	2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe	29
PID 1744 wrote to memory of 988	1744	2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe	29
PID 1744 wrote to memory of 988	1744	2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_44975a7960b42086661b80808f58ba91_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1744
- 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:988

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

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

Filesize
41KB

MD5
3c7aa4927739c1d833d3ef8f29712187

SHA1
917b7903a5b7de35ca0318068ec5e8e5994cf2f2

SHA256
93c537ab3262d3e9ad754698ff81beecf8643cde9773578651d89fd99fc1ed81

SHA512
15efe9a23a57648c977503dd6fd5cef3e26448bb8965d8d4bf4bbf3f87c1c8c62f22efb23a6f9606805d86be38e4a2165b55303830b0dc8d142c4387078432ce

Download Submit
memory/988-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/988-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/988-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/988-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1744-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1744-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1744-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1744-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1744-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download