66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04-04-2024 21:34

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General

Target

66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe
Size

146KB
MD5

49ecb48e3cc3edd3f3c919e0705e5e0d
SHA1

4916b33fe4dbd180f02c2e95c31cf4ea279f628c
SHA256

66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b
SHA512

f0d2c46fc91631195191a86327321da14ebf6baf364bd77cc9b9aaf6ec1c97adada6e306d77e9cbf1a46a1854a69a76c0e27889a7cca98a238722e8a6d7370c6
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFk:V6a+pOtEvwDpjt22Q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2532	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2236	66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe

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 2236 wrote to memory of 2532	2236	66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe	28
PID 2236 wrote to memory of 2532	2236	66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe	28
PID 2236 wrote to memory of 2532	2236	66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe	28
PID 2236 wrote to memory of 2532	2236	66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe	28

C:\Users\Admin\AppData\Local\Temp\66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe
"C:\Users\Admin\AppData\Local\Temp\66ff59563927b0b36681f00bdcf71a2da52500c6d0f26786b778b844f384f71b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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
147KB

MD5
15a7bf77d5b82213572136aea43e8855

SHA1
5ebfab64763fee40b11b8a80122977e4b51ea7a3

SHA256
bc2ff47e8c1501eeb18f421090f960866a2285c2423a645032f88b2b6f58f2d8

SHA512
91c0f47f9fe67850efabd0c28a75651ebf661a48911836a8dc118aa76a458fb71e4c8650d432bf564350272e90d44d555a2c063183a56e3531189ee31dd93da5

Download Submit
memory/2236-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2236-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2236-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2532-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2532-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download