1a0a19aeac163f3d71a9dbc4fad2a99c08c5fd10195f7a31ec2eb2ba0d6b9af3

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/09/2024, 21:21

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe
Size

36KB
MD5

d51361519909c34bf6935f6c8b32e0ec
SHA1

451cc8b71d0e3d2e65c06153b549bbb1ee527f28
SHA256

1a0a19aeac163f3d71a9dbc4fad2a99c08c5fd10195f7a31ec2eb2ba0d6b9af3
SHA512

4aefacfa6fb3cb895fd8097983e002074769477634ec4ae5fa53ddf772bff952d40b0e47c5ea8cabe4638487cf40ee29e57a35ca3702054bbe390eb73d79f881
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT64:qDdFJy3QMOtEvwDpjjWMl7T64

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2960	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2960-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012117-11.dat	upx
behavioral1/memory/2636-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2960-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2636-28-0x0000000000500000-0x0000000000510000-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	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_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 2960 wrote to memory of 2636	2960	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe	28
PID 2960 wrote to memory of 2636	2960	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe	28
PID 2960 wrote to memory of 2636	2960	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe	28
PID 2960 wrote to memory of 2636	2960	2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_d51361519909c34bf6935f6c8b32e0ec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2960
- 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:2636

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
36KB

MD5
7bd5a9e6af3e783e459d0571adad5135

SHA1
46cb7abc0c3d3c93360b2bb7c902c77cacbe6c43

SHA256
4295d15104d80bd1446afd43e22af9d61bd859a753909e1fbe6e59476e9a8538

SHA512
44cdf1d280c5c2ac925ac1fa93c7a0b69ce1177c8690eacf7f45581752024bf39fa3b3825b857be5289235f7fd7c12de38e9932a3afbc0dbc013476a07337ac3

Download Submit
memory/2636-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-20-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2636-27-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2636-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2960-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2960-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2960-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2960-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2960-13-0x0000000001E10000-0x0000000001E20000-memory.dmp

Filesize
64KB

Download
memory/2960-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download