Malware Analysis Report

2025-08-06 03:44

Sample ID 230501-p56djahc7v
Target update.exe
SHA256 bbcfc7c262a04ae7291c4a1ea80253aaea3968a3c95d2b73b47016c298a7e281
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 Overview

score
10/10

SHA256

bbcfc7c262a04ae7291c4a1ea80253aaea3968a3c95d2b73b47016c298a7e281

Threat Level: Known bad

The file update.exe 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 12:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-01 12:55

Reported

2023-05-01 12:58

Platform

win7-20230220-en

Max time kernel

27s

Max time network

152s

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

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 194.87.151.134:7878 addimq.duckdns.org tcp
NL 194.87.151.134:7878 addimq.duckdns.org tcp

Files

memory/1724-54-0x0000000000690000-0x00000000006A5000-memory.dmp

memory/1724-55-0x0000000028260000-0x0000000028272000-memory.dmp

memory/1724-56-0x0000000041620000-0x00000000416A0000-memory.dmp

memory/1724-57-0x0000000041620000-0x00000000416A0000-memory.dmp

memory/1724-58-0x0000000041620000-0x00000000416A0000-memory.dmp

memory/1724-76-0x0000000041E50000-0x0000000041ECE000-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\Tar5F28.tmp

MD5 4ff65ad929cd9a367680e0e5b1c08166
SHA1 c0af0d4396bd1f15c45f39d3b849ba444233b3a2
SHA256 c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6
SHA512 f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

memory/1724-97-0x0000000028590000-0x000000002859A000-memory.dmp

memory/1724-98-0x0000000041BE0000-0x0000000041C40000-memory.dmp

memory/1724-99-0x00000000425C0000-0x0000000042650000-memory.dmp

memory/1724-100-0x0000000041620000-0x00000000416A0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-01 12:55

Reported

2023-05-01 12:58

Platform

win10v2004-20230220-en

Max time kernel

123s

Max time network

128s

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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 117.18.232.240:80 tcp
US 93.184.220.29:80 tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 40.125.122.151:443 tcp
FR 40.79.141.153:443 tcp
US 117.18.232.240:80 tcp
US 117.18.232.240:80 tcp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp

Files

memory/1772-133-0x000002142C610000-0x000002142C625000-memory.dmp