Malware Analysis Report

2025-08-05 12:32

Sample ID 230505-bw2gbshg81
Target 1444-55-0x00000000003B0000-0x00000000003C2000-memory.dmp
SHA256 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
Tags
rat default asyncrat
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

5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6

Threat Level: Known bad

The file 1444-55-0x00000000003B0000-0x00000000003C2000-memory.dmp was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat

Async RAT payload

AsyncRat

Asyncrat family

Async RAT payload

Executes dropped EXE

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-05 01:30

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-05 01:30

Reported

2023-05-05 01:33

Platform

win7-20230220-en

Max time kernel

37s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\microsafte.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\microsafte.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1724 wrote to memory of 684 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\System32\cmd.exe
PID 1724 wrote to memory of 684 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\System32\cmd.exe
PID 1724 wrote to memory of 684 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\System32\cmd.exe
PID 1724 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\system32\cmd.exe
PID 1724 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\system32\cmd.exe
PID 1724 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe C:\Windows\system32\cmd.exe
PID 684 wrote to memory of 1720 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 684 wrote to memory of 1720 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 684 wrote to memory of 1720 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 584 wrote to memory of 1500 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 584 wrote to memory of 1500 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 584 wrote to memory of 1500 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 584 wrote to memory of 1496 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\microsafte.exe
PID 584 wrote to memory of 1496 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\microsafte.exe
PID 584 wrote to memory of 1496 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\microsafte.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 1444-55-0x00000000003B0000-0x00000000003C2000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"' & exit

C:\Windows\system32\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp539D.tmp.bat""

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /ru system /rl highest /tn 1444-55-0x00000000003B0000-0x00000000003C2000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"'

C:\Windows\system32\timeout.exe

timeout 3

C:\Users\Admin\AppData\Roaming\microsafte.exe

"C:\Users\Admin\AppData\Roaming\microsafte.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 seznam.zapto.org udp
NL 91.109.178.2:6606 seznam.zapto.org tcp

Files

memory/1724-54-0x0000000001070000-0x0000000001082000-memory.dmp

memory/1724-55-0x0000000000F10000-0x0000000000F90000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp539D.tmp.bat

MD5 9d7c17510bd9a7f5d147bba191ec8f3d
SHA1 5ea7ef7a2d6231ce9bc2e3579b62799e13e6a7fc
SHA256 fde6a38b85d06cc994bab5f13548f4e6e045c26b727ba7ec387b52fcd721bdca
SHA512 7e7bebedff0a353afd4fd012afee93368f76f7bfca036d60596039b02c7fc2005ccdf0fd8b2d0c4306ea2887633fb838a2179a7eb9410e2d4b79a86b98e931d8

C:\Users\Admin\AppData\Local\Temp\tmp539D.tmp.bat

MD5 9d7c17510bd9a7f5d147bba191ec8f3d
SHA1 5ea7ef7a2d6231ce9bc2e3579b62799e13e6a7fc
SHA256 fde6a38b85d06cc994bab5f13548f4e6e045c26b727ba7ec387b52fcd721bdca
SHA512 7e7bebedff0a353afd4fd012afee93368f76f7bfca036d60596039b02c7fc2005ccdf0fd8b2d0c4306ea2887633fb838a2179a7eb9410e2d4b79a86b98e931d8

C:\Users\Admin\AppData\Roaming\microsafte.exe

MD5 6ddcee176a864b67cd4cff577c28cdf1
SHA1 c69292e4ec9128ccc4de351f39a48d1bd3f439e6
SHA256 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
SHA512 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4

C:\Users\Admin\AppData\Roaming\microsafte.exe

MD5 6ddcee176a864b67cd4cff577c28cdf1
SHA1 c69292e4ec9128ccc4de351f39a48d1bd3f439e6
SHA256 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
SHA512 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4

memory/1496-68-0x0000000000E60000-0x0000000000E72000-memory.dmp

memory/1496-69-0x00000000002E0000-0x0000000000360000-memory.dmp

memory/1496-87-0x00000000002E0000-0x0000000000360000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-05 01:30

Reported

2023-05-05 01:33

Platform

win10v2004-20230220-en

Max time kernel

105s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.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
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\microsafte.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\microsafte.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe

"C:\Users\Admin\AppData\Local\Temp\1444-55-0x00000000003B0000-0x00000000003C2000-memory.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 1444-55-0x00000000003B0000-0x00000000003C2000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"' & exit

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpADC9.tmp.bat""

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /ru system /rl highest /tn 1444-55-0x00000000003B0000-0x00000000003C2000-memory /tr '"C:\Users\Admin\AppData\Roaming\microsafte.exe"'

C:\Windows\system32\timeout.exe

timeout 3

C:\Users\Admin\AppData\Roaming\microsafte.exe

"C:\Users\Admin\AppData\Roaming\microsafte.exe"

Network

Country Destination Domain Proto
US 52.152.110.14:443 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 milla.publicvm.com udp
NL 91.109.178.2:8808 milla.publicvm.com tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 2.178.109.91.in-addr.arpa udp
US 52.168.112.67:443 tcp
US 52.152.110.14:443 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
NL 173.223.113.164:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 50.4.107.13.in-addr.arpa udp
US 93.184.221.240:80 tcp

Files

memory/1860-133-0x0000000000400000-0x0000000000412000-memory.dmp

memory/1860-134-0x0000000000D10000-0x0000000000D20000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpADC9.tmp.bat

MD5 a327a7f9ff829be015430ee0c856bddb
SHA1 7d592d6631f0ecd5027cf19cb88394596772916b
SHA256 1050a92e426b92361021e37404a0a27efcc5c0b61c929cc11271c7d6f14fdef0
SHA512 62ce1bd63ec3efb88036f17e142235407fa0c17c689365f88b375d25e70706941bf9232d75a173c68775179a67a45ff5ca88a5d4a5b83036caa595ab41466bfe

C:\Users\Admin\AppData\Roaming\microsafte.exe

MD5 6ddcee176a864b67cd4cff577c28cdf1
SHA1 c69292e4ec9128ccc4de351f39a48d1bd3f439e6
SHA256 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
SHA512 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4

C:\Users\Admin\AppData\Roaming\microsafte.exe

MD5 6ddcee176a864b67cd4cff577c28cdf1
SHA1 c69292e4ec9128ccc4de351f39a48d1bd3f439e6
SHA256 5bf8102edefe3e55a0e33207fdbf359f71477f70856745bc4e626cc72d498cd6
SHA512 3482d4da78c96ca3d404d97547ee21ff1651339bb5ae01f107399705f6a73bbd26e1f0a0761b0625427373cc688812e43483774a754c1f9a0bce9ff16e322ff4

memory/4636-143-0x0000000002A30000-0x0000000002A40000-memory.dmp

memory/4636-144-0x0000000002A30000-0x0000000002A40000-memory.dmp