32762be27b5c09ebe1931b4fbd2a66843a6b2692ca5c564093ff7a2c83f1e811

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 02:29

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General

Target

2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe
Size

55KB
MD5

fb9cd88b1ce72608bc96fd34268d7bf9
SHA1

2c417bec35bb4abd5ab57de63f1fe98fc24e2590
SHA256

32762be27b5c09ebe1931b4fbd2a66843a6b2692ca5c564093ff7a2c83f1e811
SHA512

bdc06bedfcc50bbe84c02e9fbef16c458b2a0f5af4335c8d2508d9963a3da73f712a879c17cef50cc508f53f932f4fead8e37e0adc40f91dc61c40cb9b4c3590
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelagPXPECuMpS:zj+soPSMOtEvwDpj4HE9MpS

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2740	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2760	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c000000012283-24.dat	upx
behavioral1/memory/2760-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2760-13-0x0000000001D60000-0x0000000001D70000-memory.dmp	upx
behavioral1/memory/2760-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2740-26-0x0000000000500000-0x0000000000510000-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	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_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 2760 wrote to memory of 2740	2760	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe	30
PID 2760 wrote to memory of 2740	2760	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe	30
PID 2760 wrote to memory of 2740	2760	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe	30
PID 2760 wrote to memory of 2740	2760	2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-27_fb9cd88b1ce72608bc96fd34268d7bf9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:2740

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

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

Filesize
55KB

MD5
809c87497e54cc2405c2a11b991d7e0a

SHA1
7b49fa559c46ac80c39c0e4dc17e038ba20ada60

SHA256
58f780f2adc7ac26da95ae0e54c3e26754db18159c378d753fb37c6a8ba77041

SHA512
5c0fbee762ef6c7e6bbde619048802845705897cad6668b050c9c869e4140af6ac501d1f518cb46e732ae128d1a09c3a37d4b2bc3d5868f44abb3180babc57f9

Download Submit
memory/2740-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2740-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2740-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2760-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2760-13-0x0000000001D60000-0x0000000001D70000-memory.dmp

Filesize
64KB

Download
memory/2760-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2760-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2760-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2760-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download