Malware Analysis Report

2025-08-06 03:44

Sample ID 230501-f9k4qage2z
Target update.zip
SHA256 6e06ae867fc67afbe5eee0b92e43dd75b2f116eec1fc956a92559bcec974ffa0
Tags
asyncrat default rat spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6e06ae867fc67afbe5eee0b92e43dd75b2f116eec1fc956a92559bcec974ffa0

Threat Level: Known bad

The file update.zip was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat spyware stealer

AsyncRat

Async RAT payload

Reads user/profile data of web browsers

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-01 05:35

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-01 05:34

Reported

2023-05-01 11:41

Platform

win7-20230220-en

Max time kernel

30s

Max time network

32s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\update.zip

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\update.zip

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-01 05:34

Reported

2023-05-01 11:41

Platform

win10v2004-20230220-en

Max time kernel

135s

Max time network

154s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\update.zip

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\update.zip

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 20.189.173.12:443 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 44.8.109.52.in-addr.arpa udp
NL 8.238.20.126:80 tcp
US 93.184.220.29:80 tcp
NL 8.238.20.126:80 tcp
US 40.125.122.176:443 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2023-05-01 05:34

Reported

2023-05-01 11:41

Platform

win7-20230220-en

Max time kernel

26s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\update.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Reads user/profile data of web browsers

spyware stealer

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\update.exe N/A

Processes

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

"C:\Users\Admin\AppData\Local\Temp\update.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 addimq.duckdns.org udp
NL 194.87.151.134:6568 addimq.duckdns.org tcp
NL 194.87.151.134:6568 addimq.duckdns.org tcp

Files

memory/856-54-0x0000000000620000-0x0000000000635000-memory.dmp

memory/856-55-0x0000000028160000-0x0000000028172000-memory.dmp

memory/856-56-0x00000000284F0000-0x0000000028570000-memory.dmp

memory/856-57-0x00000000284F0000-0x0000000028570000-memory.dmp

memory/856-75-0x00000000421F0000-0x000000004226E000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 3ac860860707baaf32469fa7cc7c0192
SHA1 c33c2acdaba0e6fa41fd2f00f186804722477639
SHA256 d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904
SHA512 d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

C:\Users\Admin\AppData\Local\Temp\Tar504A.tmp

MD5 4ff65ad929cd9a367680e0e5b1c08166
SHA1 c0af0d4396bd1f15c45f39d3b849ba444233b3a2
SHA256 c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6
SHA512 f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

memory/856-96-0x0000000028650000-0x000000002865A000-memory.dmp

memory/856-97-0x0000000042270000-0x00000000422D0000-memory.dmp

memory/856-98-0x0000000043620000-0x00000000436B0000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2023-05-01 05:34

Reported

2023-05-01 11:42

Platform

win10v2004-20230220-en

Max time kernel

149s

Max time network

167s

Command Line

"C:\Users\Admin\AppData\Local\Temp\update.exe"

Signatures

N/A

Processes

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

"C:\Users\Admin\AppData\Local\Temp\update.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 52.152.110.14:443 tcp
IE 13.69.239.74:443 tcp
US 8.248.5.254:80 tcp
US 8.248.5.254:80 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 44.8.109.52.in-addr.arpa udp
US 8.248.5.254:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp
US 52.152.110.14:443 tcp

Files

memory/2732-133-0x00000139BF530000-0x00000139BF545000-memory.dmp