2bdcda71e8302ad95d313a2e406c828ee430fc4ca13795a86030f9e6d9ca1651

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 20:50

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General

Target

2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe
Size

93KB
MD5

427280732c0ad0897a66ecfb12f0f637
SHA1

e110ce3398ba95f025ccf4992e1bcd36d42a04ea
SHA256

2bdcda71e8302ad95d313a2e406c828ee430fc4ca13795a86030f9e6d9ca1651
SHA512

e2b4418eba05d77839d5f9a0f513e8350c845952d54556c381bc67f422ba0195da9de06e0399b1d2fb3389f6bffc668a823430cd71f50a4b8726428e6308f5c2
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDj9i4RRX:zCsanOtEvwDpjW

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2868	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2296-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000012254-11.dat	upx
behavioral1/memory/2296-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2868-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2868-26-0x0000000000500000-0x0000000000510000-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	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2868	2296	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe	31
PID 2296 wrote to memory of 2868	2296	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe	31
PID 2296 wrote to memory of 2868	2296	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe	31
PID 2296 wrote to memory of 2868	2296	2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_427280732c0ad0897a66ecfb12f0f637_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- 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:2868

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
93KB

MD5
ef3e7202d6dc7eab4278dbb52b16e417

SHA1
4b495e4733d2c277870eb640733dcd218ad33fd2

SHA256
1df0e0c7fb5d59fdd541bd9113229916d5c05aef996414527e07613adb54ced1

SHA512
c9de3eeb77bfe51472c7ae713b0b182a58adf5a18fb4a0c6066da3cd4bc9c12bfed3e793c8a6f486c78324add69c066d11275a9fe8a61d4cf52bd271860e7a1b

Download Submit
memory/2296-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2296-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2296-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2296-3-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2296-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2868-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2868-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-18-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2868-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download