f07df4d2767fd26f5ef47587b5ca62e01eabce32372d0cbbae0e3026d433c4bd

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 02:24

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General

Target

2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe
Size

72KB
MD5

0042bb58b7e97481e0f1563152c1c339
SHA1

782520e9bd954d355064c35dbe7875936c4a285d
SHA256

f07df4d2767fd26f5ef47587b5ca62e01eabce32372d0cbbae0e3026d433c4bd
SHA512

0895b5ef279ca4ce53464679294eae5e1c8a8f8e2d7b41dc5ad6258bda56d4c685286deb2e0cded09c74f3e29397ec3b2a024367e1d86e7e135c69d4fb6048ac
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9I:C4Q2c94OtEvwDpj4H8zZ

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2492	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2360-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2492-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d0000000141df-15.dat	upx
behavioral1/memory/2492-28-0x0000000000500000-0x0000000000510000-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	2024-10-02_0042bb58b7e97481e0f1563152c1c339_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 2360 wrote to memory of 2492	2360	2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe	31
PID 2360 wrote to memory of 2492	2360	2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe	31
PID 2360 wrote to memory of 2492	2360	2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe	31
PID 2360 wrote to memory of 2492	2360	2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_0042bb58b7e97481e0f1563152c1c339_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- 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:2492

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

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

Filesize
72KB

MD5
2d5c62efa04ccde116202d9e1398b07f

SHA1
c29191a4ec4b6c6c6cba38d77a3751ce6211dd86

SHA256
243304f441e2e2edbfb5da50192688f976fca03f04cf3b15c6595588a599542c

SHA512
dc50181d47127dc54858e35f4aaa9a3dc9b1f0a0b1c728284ea02507e668e1b7ea941b1f5d9b0788d2a344121d34c8af41eaa8da54db9daf52da23c6feb67c19

Download Submit
memory/2360-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2360-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-14-0x0000000001DD0000-0x0000000001DE0000-memory.dmp

Filesize
64KB

Download
memory/2360-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2492-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2492-20-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download
memory/2492-27-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2492-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download