1889e227c5debf955ec8354676c57f704dc630b43bd2f2019f463ca2d8abf64f

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 05:29

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General

Target

2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe
Size

72KB
MD5

f286d72aa1683b93b9b63db8322d49e7
SHA1

668cf0d911f0429514ea4adc655dd06e456c8be0
SHA256

1889e227c5debf955ec8354676c57f704dc630b43bd2f2019f463ca2d8abf64f
SHA512

fe0b0790d21fd09298d58250eab8423bfcf263b9f2cd8025625124a03ddd9b32196c976bfc6ff1d4277dda1b653ea1bb7eeaba33c5336e51165570f05f4bc3a2
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs97:C4Q2c94OtEvwDpj4H8zm

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2348	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1680	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1680-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1680-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2348-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-16.dat	upx
behavioral1/memory/2348-27-0x0000000000500000-0x0000000000510000-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	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_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 1680 wrote to memory of 2348	1680	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe	30
PID 1680 wrote to memory of 2348	1680	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe	30
PID 1680 wrote to memory of 2348	1680	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe	30
PID 1680 wrote to memory of 2348	1680	2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_f286d72aa1683b93b9b63db8322d49e7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- 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:2348

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
72KB

MD5
0197d4f04bbac9e0e9b00f334e83d3d9

SHA1
cdbe62f7bbfb69035d231b0cba03f6f44b0700be

SHA256
8063f26531716dd7528ef847a6f02b344201346d1f9a8afc82929f02671bb184

SHA512
0b0b49480c51ecdbb50f79e11f8708b5b4ce9213a17bf97eeca7bc6a4792fe6e9fcb1e8b6e435fca2173cabcfeb0d472e16dfc96ba326ca288e3bab6032c9a86

Download Submit
memory/1680-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1680-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1680-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1680-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1680-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2348-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2348-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2348-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2348-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download