6688b2b6459e39f76c272b14bab263350e15b8325bc909dfc76037e69098d6af

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 12:27

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General

Target

2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe
Size

90KB
MD5

413a2d4a7d399935e10664c9a4e3a7ac
SHA1

c7d41a3aa48043d046b15226dba7aeea3c206072
SHA256

6688b2b6459e39f76c272b14bab263350e15b8325bc909dfc76037e69098d6af
SHA512

7f8e31bb4facae9f43e75bfa3e3cff155791bfeaa2b389bc940ffabe7e3f3781a55c9760b33f7833c20becc762e6da90bfe47164480eb961e5df92bc00d6084a
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIODwqD:qkmnpomddpMOtEvwDpjJGYQbN/PKwMg9

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2692	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2384-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/2692-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2384-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2692-28-0x0000000000500000-0x000000000050F000-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	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2692	2384	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe	30
PID 2384 wrote to memory of 2692	2384	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe	30
PID 2384 wrote to memory of 2692	2384	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe	30
PID 2384 wrote to memory of 2692	2384	2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-03_413a2d4a7d399935e10664c9a4e3a7ac_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2692

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\asih.exe

Filesize
90KB

MD5
33d255ba3dae62a6ed60faa5aa89a4ef

SHA1
c34c928c138c5d2696a50f53cffb9aea0c7465a3

SHA256
0c2df4468b07023deaa6ca743b610cfd28b202bc4e08452ce00c91b6354ddf1c

SHA512
35319bc16555be8d1a3aea7411ac6ad00e18a0cad15bf767fe7e043e9322ce72a76a0d9f62bff416ff6d3aec8d465b8eb38b74a72050433ad8d0f8af56d3b744

Download Submit
memory/2384-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2384-9-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2384-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2384-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2384-13-0x0000000002170000-0x000000000217F000-memory.dmp

Filesize
60KB

Download
memory/2384-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2692-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2692-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2692-27-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2692-28-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download