6629424b4c5278ef6e89f21064add162914282a509913f9bbce6361e3e0b9978

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/10/2024, 02:24

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General

Target

2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe
Size

37KB
MD5

c4eb06f09a7f74083e8026aa49e650d8
SHA1

c05ef0564a85883da006a2c1e85afac5c38ed4b5
SHA256

6629424b4c5278ef6e89f21064add162914282a509913f9bbce6361e3e0b9978
SHA512

b65410912a17d97d7e51121e26449216a6c12622d8dae385963e29ccb69bd9cabab82a7c8d8dc17ccb63c134405a7fb26cb80dfa613a3d0c750d76ac791fbe1c
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6B:qDdFJy3QMOtEvwDpjjWMl7T6B

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2816	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2408	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2408-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012118-16.dat	upx
behavioral1/memory/2408-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2816-26-0x0000000000500000-0x0000000000510000-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	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_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 2408 wrote to memory of 2816	2408	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe	31
PID 2408 wrote to memory of 2816	2408	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe	31
PID 2408 wrote to memory of 2816	2408	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe	31
PID 2408 wrote to memory of 2816	2408	2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-15_c4eb06f09a7f74083e8026aa49e650d8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- 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:2816

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\asih.exe

Filesize
37KB

MD5
37b3ed222d023a670e8f00f9e9e4aa01

SHA1
9229e7a8e261218d5a9d859c7add93b9465ab5e9

SHA256
455c26104fd39dc3a4f4947d5491f9be2dbc6781cccf6b92d99bab431f435f7c

SHA512
f5a553b2c198dcf939c657b185103346d4ea9cdb222402bd1bbf954ff80367fb4186dd5dbf7672f8434ed8a672f5b417ddabddff7bc7b980afcf6fbf444255f0

Download Submit
memory/2408-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2408-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2408-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2408-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2408-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2816-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2816-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2816-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download