e428891b1a094a92bdf0ec7970545f1f2ab39d1a46409f15b386149457b3b25b

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 07:35

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General

Target

2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe
Size

72KB
MD5

3d6b9d50fcf3675de61241d5184f6e2f
SHA1

0d7d5893ecdcc9bdea82eaed7e725c5fdf7a8152
SHA256

e428891b1a094a92bdf0ec7970545f1f2ab39d1a46409f15b386149457b3b25b
SHA512

c9013fa7bb7b821b200311bc84d15bf447201e531ee27a996062dfff1932b0aa9bf6ae12e50fb051f071af56e442bb94b15c28e543263fed63a67b91fa8584d9
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9K:C4Q2c94OtEvwDpj4H8zv

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2840	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2300-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120fe-11.dat	upx
behavioral1/memory/2840-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2300-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2840-27-0x0000000000500000-0x0000000000510000-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	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2840	2300	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe	30
PID 2300 wrote to memory of 2840	2300	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe	30
PID 2300 wrote to memory of 2840	2300	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe	30
PID 2300 wrote to memory of 2840	2300	2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_3d6b9d50fcf3675de61241d5184f6e2f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2300
- 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:2840

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

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

Filesize
72KB

MD5
bb3cda893c577b6e97376e5ae0802eba

SHA1
e2a687d1f73635b4468c5f01c47f48213d7535eb

SHA256
61d7b9fde1ff19affe5c0c78a24eec03a8117007a0a1edb8b5d405ccefd92e61

SHA512
f2d02c62bd635597f7ca28e484fdad224f114496ba83832e38a5fa30b8da0cd5e2b8774828b6be9cebf975b1d6100498fa53e76a888409f0bc99db1327b084f0

Download Submit
memory/2300-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2300-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2300-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2840-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2840-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2840-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2840-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download