b6a8b2657d706d2267891dc4daac9eb9873753fdad13c4a48e506cd6dd0167e8

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10/10/2024, 03:00

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General

Target

2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe
Size

90KB
MD5

821a59a61b8b98ad67c360b25d55cc1f
SHA1

2a0e69767e182dbc10190820092cb083c9a1b673
SHA256

b6a8b2657d706d2267891dc4daac9eb9873753fdad13c4a48e506cd6dd0167e8
SHA512

c6a433d615bf726dc5ca91290c1845d920cc81dd6a53a5b7c3d151af8bbeff74a3e94c139126442dc4c8d3f5779699e649401774349c7a0df4ae1299e2c9ad05
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjQ9T:zCsanOtEvwDpjz

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2520	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2032	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2032-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000014348-11.dat	upx
behavioral1/memory/2032-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2520-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2520-26-0x0000000000500000-0x0000000000510000-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	misid.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 2520	2032	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe	30
PID 2032 wrote to memory of 2520	2032	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe	30
PID 2032 wrote to memory of 2520	2032	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe	30
PID 2032 wrote to memory of 2520	2032	2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_821a59a61b8b98ad67c360b25d55cc1f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2520

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

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

Filesize
90KB

MD5
c53285691a1c43448c85008522f6eec7

SHA1
15884b9d7ae05bba5ddad6b1f241bbdd07afa0ab

SHA256
89307a4bad3fa72852049e0c3bf8f8ffec40ed183d55ae6ad884b14d46088e34

SHA512
e6a090f3325c2ab9740a9ad211ba44b99412e5c6f4089e88b1b1d09f0dbfdad25a9b62963cd0946d60ce22a611132dd716ce2fbf0c451d933cb8e4a442409463

Download Submit
memory/2032-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2032-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2032-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2032-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2032-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2520-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2520-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2520-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2520-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download