4c1201eea6a4a81b8b11418c3001f62b37e756fa9ecae60ad9af1a074d916a88

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2024, 06:23

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General

Target

2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe
Size

55KB
MD5

26b7313f3676c1c52f69ae4ae512c74e
SHA1

4ba6ffb8945815364eb64e17a21f88899700f1fd
SHA256

4c1201eea6a4a81b8b11418c3001f62b37e756fa9ecae60ad9af1a074d916a88
SHA512

6e5c707c35d9db74e4c20459b3260c2cade97cbe5e78501e762d1782e0612089ecd3634441ae98a67077d8c06911e7d99ed870bf151a926ac31232fad67a32c2
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkgS:z6QFElP6n+gKmddpMOtEvwDpj31ikgS

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2952	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1608-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000c000000023b59-13.dat	upx
behavioral2/memory/1608-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2952-26-0x0000000000500000-0x0000000000510000-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	2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 2952	1608	2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe	85
PID 1608 wrote to memory of 2952	1608	2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe	85
PID 1608 wrote to memory of 2952	1608	2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_26b7313f3676c1c52f69ae4ae512c74e_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1608
- 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:2952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
56KB

MD5
9ddcb3c216a7d9a317a8212680c08e03

SHA1
7daa6e77472f2a188bf8efbea4f417991c2b2510

SHA256
ea5f525e32d4e268c6a4664805c036efb8f86b9f0d97b342bf8f88c4a4bd8eea

SHA512
0e015af94051f15322b3b4ccaef4f936d0c3b2ec4a81a3953bc26041dbfc499bf9d1b749ebcbb0d899d9f7a37009ace5a5303c02a6f90384176325d098b59ed9

Download Submit
memory/1608-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1608-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1608-2-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/1608-3-0x0000000000650000-0x0000000000656000-memory.dmp

Filesize
24KB

Download
memory/1608-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2952-19-0x0000000001F80000-0x0000000001F86000-memory.dmp

Filesize
24KB

Download
memory/2952-25-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2952-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download