2c2a47c6a4f04dc7179176e68c0d03411bd5ab46ceba0c370f9e915aa5e9b39c

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 02:44

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General

Target

2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe
Size

70KB
MD5

2087a5d23374ba85bb92e414c7e6c2eb
SHA1

3665f1312b394e56ba4a19de97f4acaee25ddc16
SHA256

2c2a47c6a4f04dc7179176e68c0d03411bd5ab46ceba0c370f9e915aa5e9b39c
SHA512

3ed901b3a06d8b6ac6215b706c6003c1ddc5a63f2c99a91684ca1a6c501c40c29d2c9e4102986de4d3f494f40a6643e1b4c666dd1a63ed235956b3412aac5bb1
SSDEEP

1536:quJu9cvMOtEvwDpjWYTjipvF2bx1PQAeo:78SEOtEvwDpjWYvQd2Pt

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2328	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000c000000012254-11.dat	upx
behavioral1/memory/1984-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2328-25-0x0000000000500000-0x000000000050F000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2328	1984	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe	30
PID 1984 wrote to memory of 2328	1984	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe	30
PID 1984 wrote to memory of 2328	1984	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe	30
PID 1984 wrote to memory of 2328	1984	2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_2087a5d23374ba85bb92e414c7e6c2eb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984
- 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:2328

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
70KB

MD5
30af1bc365a84e329ceb8e1fcad9b419

SHA1
4370341df74195ea67f1d0eab3033c24b2b04c6d

SHA256
f96969564c957199ef90f825bde7647a86e76c1b2d34aa90aed918e548448c66

SHA512
3ddfd73620ede6dad8465d8470c4940dd883bad276fa0da6ad123b52b1e429509fc2e8a90bc6308ea0142e9938030c57f875ff62bb9d3a3055a663a95b68eda1

Download Submit
memory/1984-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1984-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1984-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1984-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1984-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2328-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2328-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download