c4ef9c1acf540b53e527e26507fda02c310066434f82931d96e2cebafc46f1fc

Analysis

max time kernel
141s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 03:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe
Size

40KB
MD5

1c57dc9380a6a0b158bc9232112b56d5
SHA1

1282a579b436dec081d9b48eaadb9d9d279b9e47
SHA256

c4ef9c1acf540b53e527e26507fda02c310066434f82931d96e2cebafc46f1fc
SHA512

a3c59f27e6b90ad2272e39221b21805940d84aa09006ca45136a8b6314f0565b96cbe0a2fee04a5e540ee45a68faebbb2871f17adba3d6184f5fb4a1e84d62f2
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYan/NE:qDdFJy3QMOtEvwDpjjWMl7Tdn/a

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
2596	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2596-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012116-11.dat	upx
behavioral1/memory/2328-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2596-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2328-27-0x0000000000500000-0x0000000000510000-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	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_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 2596 wrote to memory of 2328	2596	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe	30
PID 2596 wrote to memory of 2328	2596	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe	30
PID 2596 wrote to memory of 2328	2596	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe	30
PID 2596 wrote to memory of 2328	2596	2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_1c57dc9380a6a0b158bc9232112b56d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2596
- 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

Loading Replay Monitor...

Downloads

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

Filesize
40KB

MD5
3e4fc15dfcd71eaaa1974cb84eea6e8a

SHA1
2f4bca427235e1da6862cc8e318fef175c11cf7d

SHA256
675405cfc212af4d9cf6745845c0e2cd379d56795711fd167d8e39f59fd64c50

SHA512
b7c30f8b34ef82ef30a42fc0a89224507cdd1cf6d27fbc8b22a8451ed7e591697df3586007575855138e6365de8d40bd21c7cd16321634cf98915ce838069f8d

Download Submit
memory/2328-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2328-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2328-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2328-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2596-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2596-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2596-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2596-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2596-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download