c96e0d2cff3dfcab993ef97d3c9a933774955e7cc9839db6e1f1c9abb1b0531f

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2024, 02:30

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General

Target

2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe
Size

91KB
MD5

34bdbb3ab30e3ee61611a4faf4c06e9a
SHA1

2e23b1284184311983bc91037574be198d7af73a
SHA256

c96e0d2cff3dfcab993ef97d3c9a933774955e7cc9839db6e1f1c9abb1b0531f
SHA512

91517f193f171ce41eec27d52ba3c0c1a116dac0ca5ab5674f875b93db08150d92607a82dbcaca253c3498eb4e8256cb8eb3cd037cbd281401cc417628ac3d7a
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5yyg:1nK6a+qdOOtEvwDpjB

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2400	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2052-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000900000002346a-13.dat	upx
behavioral2/memory/2052-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/2400-26-0x0000000000500000-0x000000000050F311-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	2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_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 2052 wrote to memory of 2400	2052	2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe	82
PID 2052 wrote to memory of 2400	2052	2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe	82
PID 2052 wrote to memory of 2400	2052	2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_34bdbb3ab30e3ee61611a4faf4c06e9a_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- 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:2400

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

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Downloads

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

Filesize
91KB

MD5
c7e31dd8336b61bc4dcdd3c6bf792fbb

SHA1
c6864d1aec569a821009bd2b74657b987ce5c3a2

SHA256
480504fd2ac5461368f58a5ec28a4f8dfa0e6c57c625f70fc0f72eee75fad894

SHA512
4dc8cf7b09a74b71e5465a1cd5561e10a1332d3a8d4c84d0dd052f40b1e7ae0b51737f2ee87b91c2e8a10d9f5107ba26d418cc74e7cfbf369b352cb7aa693e0e

Download Submit
memory/2052-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2052-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2052-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2052-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2052-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2400-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/2400-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2400-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download