3e00497e7c360681519b885786625686a409efa42baf2fb300f1c1c1e8b51d21

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 05:29

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe
Size

40KB
MD5

5420cfc3c5f1f433227a00b7d898fc93
SHA1

95b44a01c4dd4eb3e24ead0b7d06d37913c2eb2e
SHA256

3e00497e7c360681519b885786625686a409efa42baf2fb300f1c1c1e8b51d21
SHA512

6090b95a261fc9fe818aa1ba41da12e784d5598b88bb15dfc94120b7cd7f8b9e18451a82503b4b100c41452f2a47a810b46447e39a7161910734bc108623d6f1
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITm:qDdFJy3QMOtEvwDpjjWMl7Tm

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2104	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2700	2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2700-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a00000001202b-14.dat	upx
behavioral1/memory/2104-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2700-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2104-27-0x0000000000500000-0x0000000000510000-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_5420cfc3c5f1f433227a00b7d898fc93_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 2700 wrote to memory of 2104	2700	2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe	30
PID 2700 wrote to memory of 2104	2700	2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe	30
PID 2700 wrote to memory of 2104	2700	2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe	30
PID 2700 wrote to memory of 2104	2700	2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_5420cfc3c5f1f433227a00b7d898fc93_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- 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:2104

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
40KB

MD5
1bd2b0d6149a31850901dca1f5dca531

SHA1
0fce4d8307edc2023db266b87a4c5931c3e31542

SHA256
fb9396076df0d2db6601bac62c5b0dea7676d27c7fa83c98ffaec65baab58d0c

SHA512
5a95bd94d2cb5b3673638e7262e06a3ca7b04baa485409ea3ff02a53b6bf55cc009c7a9e5f542d8e5241195916cc4dfb15b9cbe158ddd58976605e7f1426edcc

Download Submit
memory/2104-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2104-19-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2104-26-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2104-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2700-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2700-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2700-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2700-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2700-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download