9c23f9ec4152d8fda9c4ca3e4438725fe57e674c4f8a41ab85bd02d6cee53657

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
11/09/2024, 04:25

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General

Target

2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe
Size

65KB
MD5

2ae998db6d0ce660f947ed5fc3658612
SHA1

eea01be9231c1d022394eb59b53bb353802d3271
SHA256

9c23f9ec4152d8fda9c4ca3e4438725fe57e674c4f8a41ab85bd02d6cee53657
SHA512

83bef3e4b25feb4f8ac9b95050d85a16fc134192fb92cd07a520658f076a63dbc4099cae44f6cdd4880fb023dd547e2ff945927953796b19b159d8cbc99070db
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjY6UAXu:1nK6a+qdOOtEvwDpju

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4964	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4308-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x000900000002347b-13.dat	upx
behavioral2/memory/4308-16-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/4964-26-0x0000000000500000-0x000000000050F311-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	2024-09-11_2ae998db6d0ce660f947ed5fc3658612_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 4308 wrote to memory of 4964	4308	2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe	84
PID 4308 wrote to memory of 4964	4308	2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe	84
PID 4308 wrote to memory of 4964	4308	2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-11_2ae998db6d0ce660f947ed5fc3658612_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4308
- 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:4964

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
65KB

MD5
da99c722aee47eb6d20a5a8b979020a9

SHA1
0e5f0ff492922f307dad81a54131087b955aacb4

SHA256
f0cc85b49ea2c6c5c9b9e3dfc6372cb622881ac3a2cb294f259a476f78948ec2

SHA512
56de588f9684edb6ce1bd8165d7ac951c7bd26968a0715eb4dc2d44c5d258d1bc2e6fcfa3c9654d50d2a1f6f4e707f494ac5cc83a72b2e8b96c8594622bb0a92

Download Submit
memory/4308-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4308-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/4308-2-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/4308-3-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4308-16-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4964-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4964-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4964-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download