066fc54d79acb5e4c2e55d494422d2650b8df2e0e5327cd4a0b7b932781f79fb

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 18:16

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General

Target

20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe
Size

59KB
MD5

575f7f0102adcf4a00acd3efd8b05c5a
SHA1

b5a74f5855f8bfdeefd5005faff3ced0147219c0
SHA256

066fc54d79acb5e4c2e55d494422d2650b8df2e0e5327cd4a0b7b932781f79fb
SHA512

027332813efb56e33247b97518ce1105cad24e514e87105a166321f1d3fdefa4a5d1108b59826bb1968d2c7c58bec44306cd8f9af0ae4262966515f226896caa
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAPjP:H6QFElP6n+gou9cvMOtEvwDpjCpVXu

Score

7^/10

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2192	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1660-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0009000000023289-13.dat	upx
behavioral2/memory/2192-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/1660-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/2192-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2192	1660	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	84
PID 1660 wrote to memory of 2192	1660	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	84
PID 1660 wrote to memory of 2192	1660	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2192

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
60KB

MD5
89bd96f8d973f8bad3221ddaa9464f1e

SHA1
16a81ac4ac491fa4e1fba9565738b0e969081891

SHA256
bf3d0f4112f46d65b8e252feb05071b2c11d9e84b7489ca5314263ea0a804ada

SHA512
4810c265609eb0f9d7f45ef322028e3f64500dccb0d759f6ea067945711602ab8ba06d19ae318fa78d59de1251146f3af988525c0e56a6a89e6aa475ac5d47b4

Download Submit
memory/1660-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1660-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1660-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1660-9-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1660-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2192-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2192-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2192-19-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/2192-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download