e5a94475aa8d9ab4aa9ed7aeaf7bdd9674f81adb50959cd3e4f47afc7f7f4fa0

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 03:42

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General

Target

2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe
Size

63KB
MD5

d874b40e00650762b4712c872b8904cb
SHA1

75a5e0a23c30334fe6d8d1ccf42811d9302bb523
SHA256

e5a94475aa8d9ab4aa9ed7aeaf7bdd9674f81adb50959cd3e4f47afc7f7f4fa0
SHA512

f9030394f0bb2a0fe6379efc7ed871813435b3ef219b4c30fb9a19ad1bce3bb6babd75799590a14d1b54a7ceaf1600b48b0c72dbaa2eff37d0769e345dc56895
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9z/:0j+soPSMOtEvwDpjwizbR9Xwz/

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2476	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2276-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c0000000122e0-11.dat	upx
behavioral1/memory/2276-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2476-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2476-26-0x0000000000500000-0x0000000000510000-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	2024-09-19_d874b40e00650762b4712c872b8904cb_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 2276 wrote to memory of 2476	2276	2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe	31
PID 2276 wrote to memory of 2476	2276	2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe	31
PID 2276 wrote to memory of 2476	2276	2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe	31
PID 2276 wrote to memory of 2476	2276	2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_d874b40e00650762b4712c872b8904cb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- 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:2476

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
63KB

MD5
db04ee553475f72c2fda22a6de7eff67

SHA1
674bf8bd5685c8b1a1efa9a4a77ec0f287d7104e

SHA256
00cf97d02b5241bddde0a8dc5fb777fd59ae8f512f4e79e0d1c2ed74c47a13b8

SHA512
771830d80f06f82163e7806125729577cd4d9f7f3e16739c3258eb952ab836f17e94eac436810c8b328fb1c23f91ee3831d5d83b741369d41d932220cd571ef7

Download Submit
memory/2276-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2276-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2276-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2276-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2276-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2476-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2476-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2476-25-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2476-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download