3ed0c6450c188d2207dfd65a1e07d6e50d5a8fb5f8a874f02e645016a10ad14f

Analysis

max time kernel
147s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 18:43

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General

Target

2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe
Size

40KB
MD5

059e98425ebbb4585f04c7e45826dd39
SHA1

b73a3c605b326b76dedfe3e53bd356637758fc6e
SHA256

3ed0c6450c188d2207dfd65a1e07d6e50d5a8fb5f8a874f02e645016a10ad14f
SHA512

365635c32080ab5eaeabbb37802ce2b5407a71889c083dbb44fa715a21252229744055c918c005713ccfdda01aa3569deeb9f13af7bd9978cad4106c4a8db23a
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaB0E:qDdFJy3QMOtEvwDpjjWMl7Tdz

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2804	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2840	2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2840-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/2840-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2804-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_059e98425ebbb4585f04c7e45826dd39_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 2840 wrote to memory of 2804	2840	2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe	30
PID 2840 wrote to memory of 2804	2840	2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe	30
PID 2840 wrote to memory of 2804	2840	2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe	30
PID 2840 wrote to memory of 2804	2840	2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_059e98425ebbb4585f04c7e45826dd39_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- 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:2804

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

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

Filesize
40KB

MD5
1de1fc75dda19f3e2e42b103ce38bca6

SHA1
321374bcebf19184c8f0b8d8c1c018311ef42d52

SHA256
30170b444be8551cd5bafb6d97dd1c9a815009cd5b8679ac9b057e600e30703c

SHA512
8f8149a5edc980357ee936218b02ab79afcbd6507670eaef1f0f40e8ff1c010ff4e04104423a3ff4da38bb8bb68dbb36eb4d182ab060d8bd2dc37d9b68ef7d57

Download Submit
memory/2804-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2804-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2804-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

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

Filesize
64KB

Download
memory/2840-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2840-9-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2840-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2840-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download