066fc54d79acb5e4c2e55d494422d2650b8df2e0e5327cd4a0b7b932781f79fb

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

pid	Process
3008	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000014b31-11.dat	upx
behavioral1/memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3008-25-0x0000000000500000-0x0000000000510000-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 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 3008	2220	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	28
PID 2220 wrote to memory of 3008	2220	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	28
PID 2220 wrote to memory of 3008	2220	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	28
PID 2220 wrote to memory of 3008	2220	20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\20240521575f7f0102adcf4a00acd3efd8b05c5acryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
60KB

MD5
89bd96f8d973f8bad3221ddaa9464f1e

SHA1
16a81ac4ac491fa4e1fba9565738b0e969081891

SHA256
bf3d0f4112f46d65b8e252feb05071b2c11d9e84b7489ca5314263ea0a804ada

SHA512
4810c265609eb0f9d7f45ef322028e3f64500dccb0d759f6ea067945711602ab8ba06d19ae318fa78d59de1251146f3af988525c0e56a6a89e6aa475ac5d47b4

Download Submit
memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2220-9-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3008-17-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/3008-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3008-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download