4ef3ca4a6c7169a6ded56be30908b43f0774502dd3e3b303e48279a188c5ae96

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
04/10/2024, 03:51

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General

Target

2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe
Size

82KB
MD5

de4db0c42685e9c267b1a6a154b91422
SHA1

8d86d10e2325c3091b4d12e3f8f8d9c62c040263
SHA256

4ef3ca4a6c7169a6ded56be30908b43f0774502dd3e3b303e48279a188c5ae96
SHA512

aa05b9f38797707bef3b152294370395e5fe197a4bb6a80d725fc1f3fbd483d7bc21a270843a1e93cd10d4a416f9de843eabbb901d2426421f0c9e6e698bd498
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qih:zCsanOtEvwDpj2

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2920	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2068	2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000012267-15.dat	upx
behavioral1/memory/2068-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2920-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2920-26-0x0000000000500000-0x0000000000510000-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	2024-10-04_de4db0c42685e9c267b1a6a154b91422_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 2068 wrote to memory of 2920	2068	2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe	30
PID 2068 wrote to memory of 2920	2068	2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe	30
PID 2068 wrote to memory of 2920	2068	2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe	30
PID 2068 wrote to memory of 2920	2068	2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_de4db0c42685e9c267b1a6a154b91422_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2068
- 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:2920

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

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

Filesize
82KB

MD5
0043730e096de1bb71f00ef7d7e74f26

SHA1
a1d13a4d0c8a0a735e80e5d3705f60bc88b6fb6f

SHA256
9061a7169d4090c93f819995722bff07fe4bbf08ef77fac282ac183f45188228

SHA512
51fcd08a39c7e2c023c93d525fdc3f2bc82e7c03016bf1bd235b5c4586c8b8b959dcc7b3b8661c3c1b1fb704971df8afb45a956643c1b281c5cc9220007dac70

Download Submit
memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2068-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2068-9-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2068-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2068-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2920-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2920-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2920-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2920-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download