Malware Analysis Report

2024-08-06 13:14

Sample ID 240614-ncfrqssbjk
Target c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542
SHA256 c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542
Tags
rat asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542

Threat Level: Known bad

The file c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542 was found to be: Known bad.

Malicious Activity Summary

rat asyncrat

Asyncrat family

Async RAT payload

AsyncRat

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-14 11:14

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

2024-06-14 11:14

Reported

2024-06-14 11:17

Platform

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe"

Signatures

AsyncRat

rat asyncrat

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\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2244 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\System32\cmd.exe
PID 2244 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\System32\cmd.exe
PID 2244 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\System32\cmd.exe
PID 2244 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\system32\cmd.exe
PID 2244 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\system32\cmd.exe
PID 2244 wrote to memory of 2384 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\system32\cmd.exe
PID 2836 wrote to memory of 2780 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 2836 wrote to memory of 2780 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 2836 wrote to memory of 2780 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 2384 wrote to memory of 2828 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 2384 wrote to memory of 2828 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 2384 wrote to memory of 2828 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe

"C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "İp chenger açıldı" /tr '"C:\Users\Admin\AppData\Roaming\İp chenger açıldı.exe"' & exit

C:\Windows\system32\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp24A0.tmp.bat""

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "İp chenger açıldı" /tr '"C:\Users\Admin\AppData\Roaming\İp chenger açıldı.exe"'

C:\Windows\system32\timeout.exe

timeout 3

Network

N/A

Files

memory/2244-0-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

memory/2244-1-0x00000000003F0000-0x0000000000408000-memory.dmp

memory/2244-3-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

memory/2244-11-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp24A0.tmp.bat

MD5 37d72d44e2e36d824badc7f38f0c4887
SHA1 b74a6ebe0b40fb669429b93606e7d82e0ab82ea4
SHA256 060886f8463fc804d0ba5b2ad8242b69f2494fb06b3c84ba6532d093c8941ff6
SHA512 7736f9e68d92e8d003658b8d607d57d97eca320801ba5ffe4ca4e7ca802a159967988a1d6cea668ee1cda56a082aa8f0ce39afca02210bb2e61a4e900f88ac8a

memory/2244-13-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 11:14

Reported

2024-06-14 11:17

Platform

win10v2004-20240611-en

Max time kernel

94s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe"

Signatures

AsyncRat

rat asyncrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.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\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3272 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\System32\cmd.exe
PID 3272 wrote to memory of 824 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\System32\cmd.exe
PID 3272 wrote to memory of 4116 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\system32\cmd.exe
PID 3272 wrote to memory of 4116 N/A C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe C:\Windows\system32\cmd.exe
PID 4116 wrote to memory of 3156 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 4116 wrote to memory of 3156 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 824 wrote to memory of 4732 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 824 wrote to memory of 4732 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe

"C:\Users\Admin\AppData\Local\Temp\c1c822c4fa3f7a306d16f527268b52d47f93f86861c6dea37306bce0fbb38542.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "İp chenger açıldı" /tr '"C:\Users\Admin\AppData\Roaming\İp chenger açıldı.exe"' & exit

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp516C.tmp.bat""

C:\Windows\system32\timeout.exe

timeout 3

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "İp chenger açıldı" /tr '"C:\Users\Admin\AppData\Roaming\İp chenger açıldı.exe"'

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/3272-0-0x00007FFE378C3000-0x00007FFE378C5000-memory.dmp

memory/3272-1-0x0000000000070000-0x0000000000088000-memory.dmp

memory/3272-3-0x00007FFE378C0000-0x00007FFE38381000-memory.dmp

memory/3272-8-0x00007FFE378C0000-0x00007FFE38381000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp516C.tmp.bat

MD5 2703b23dfed2ebb90c7dde95fd6eb08a
SHA1 e1c92b8475f3771c52ffe413211c8e40301f82ad
SHA256 b635a251ef5bd3b232d35be4105d522bd97430307bee4f144229ef02aaa0c7c3
SHA512 6784c8b58c3d569f9b73f55ab8573b87988ec66b05195ae3e119e55a7440f699e2b92481aebc74018d2e425e7adfef6586f7fbb1eac3c3997e604f3b571110e2