9996308487ea20d7d9ca99dbf66e32fde1a655e3b807cdb0d3c4be1c8f67b96e

Analysis

max time kernel
132s
max time network
140s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 15:24

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General

Target

2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe
Size

59KB
MD5

8ec094ead83b604cb804fd6c767cb4d2
SHA1

a86b70611b3a8a722deecdc31d5951c0f290b9bd
SHA256

9996308487ea20d7d9ca99dbf66e32fde1a655e3b807cdb0d3c4be1c8f67b96e
SHA512

9a1188bb9ff657ff6e511461fe531835bdf6456703900bb67a3b47b6d277ebebb69bffd87247948c504f91727beea28eedf587ad7022331a5d19ac1534f4ae49
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYXcW:1nK6a+qdOOtEvwDpj8

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1492	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2260	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2260-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0008000000012119-11.dat	upx
behavioral1/memory/2260-12-0x0000000000630000-0x0000000000640000-memory.dmp	upx
behavioral1/memory/1492-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2260-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/1492-27-0x0000000000500000-0x000000000050F311-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 1492	2260	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe	28
PID 2260 wrote to memory of 1492	2260	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe	28
PID 2260 wrote to memory of 1492	2260	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe	28
PID 2260 wrote to memory of 1492	2260	2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_8ec094ead83b604cb804fd6c767cb4d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- 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:1492

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

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Downloads

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

Filesize
59KB

MD5
c327d77677475109bf1a5da60db5b593

SHA1
ff1e73eca5d8678ba6a2ec6296ef69dda6694bc7

SHA256
44cbc36910d869b54c28ba3591017cef30014fe855204b5e5efaafd8e3123061

SHA512
cbedef1fbcffef406564b508212c3c90d4a5369b90a8c4e221fcf716e62d1eb66cfa9a1cd60cb2f761defb30301ecbf4e563f007859c5721283a7a0ec89ae094

Download Submit
memory/1492-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/1492-20-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/1492-19-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1492-27-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2260-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2260-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2260-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2260-3-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2260-12-0x0000000000630000-0x0000000000640000-memory.dmp

Filesize
64KB

Download
memory/2260-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download