Malware Analysis Report

2025-08-06 03:43

Sample ID 230501-qce7bafe83
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: behavioral3

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 13:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-01 13:06

Reported

2023-05-01 13:16

Platform

win10-20230220-en

Max time kernel

374s

Max time network

593s

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 194.87.151.134:9909 addimq.duckdns.org tcp
US 8.8.8.8:53 134.151.87.194.in-addr.arpa udp
NL 194.87.151.134:9909 addimq.duckdns.org tcp
FR 40.79.141.152:443 tcp
US 8.8.8.8:53 2.77.109.52.in-addr.arpa udp
NL 88.221.25.155:80 tcp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp

Files

memory/4140-116-0x00000204F8840000-0x00000204F8855000-memory.dmp

memory/4140-117-0x00000204FA0C0000-0x00000204FA0D2000-memory.dmp

memory/4140-118-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

memory/4140-119-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

memory/4140-120-0x00000204FAC20000-0x00000204FAC30000-memory.dmp

memory/4140-123-0x00000204FB230000-0x00000204FB2A6000-memory.dmp

memory/4140-124-0x00000204FABA0000-0x00000204FAC1E000-memory.dmp

memory/4140-125-0x00000204FB2B0000-0x00000204FB2CE000-memory.dmp

memory/4140-126-0x00000204FA380000-0x00000204FA38A000-memory.dmp

memory/4140-127-0x00000204FB340000-0x00000204FB3A0000-memory.dmp

memory/4140-128-0x00000204FB3A0000-0x00000204FB430000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-01 13:06

Reported

2023-05-01 13:16

Platform

win7-20230220-en

Max time kernel

395s

Max time network

593s

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 194.87.151.134:9909 addimq.duckdns.org tcp
NL 194.87.151.134:9909 addimq.duckdns.org tcp

Files

memory/1948-54-0x00000000005D0000-0x00000000005E5000-memory.dmp

memory/1948-55-0x0000000001FE0000-0x0000000001FF2000-memory.dmp

memory/1948-56-0x0000000041670000-0x00000000416F0000-memory.dmp

memory/1948-57-0x0000000041670000-0x00000000416F0000-memory.dmp

memory/1948-58-0x0000000041670000-0x00000000416F0000-memory.dmp

memory/1948-76-0x00000000284A0000-0x000000002851E000-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\Tar44D5.tmp

MD5 4ff65ad929cd9a367680e0e5b1c08166
SHA1 c0af0d4396bd1f15c45f39d3b849ba444233b3a2
SHA256 c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6
SHA512 f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

memory/1948-97-0x00000000282F0000-0x00000000282FA000-memory.dmp

memory/1948-98-0x00000000415D0000-0x0000000041630000-memory.dmp

memory/1948-99-0x0000000041CA0000-0x0000000041D30000-memory.dmp

memory/1948-100-0x0000000041670000-0x00000000416F0000-memory.dmp

memory/1948-101-0x0000000041670000-0x00000000416F0000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2023-05-01 13:06

Reported

2023-05-01 13:16

Platform

win10v2004-20230220-en

Max time kernel

498s

Max time network

501s

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 93.184.220.29:80 tcp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 20.189.173.6:443 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 48.192.11.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp

Files

memory/784-133-0x00000208E7D80000-0x00000208E7D95000-memory.dmp