meshagent | aa89ac89659bffee9a9e8125f67df0c41ded196e282bcd9aa40bb703637a2527

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/01/2025, 14:31

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General

Target

2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
Size

2.9MB
MD5

8cd4a310e3c4f2ce52250eca4f2c630f
SHA1

2af4e53f40b5b28613d35c82b9768bc78d2fad56
SHA256

aa89ac89659bffee9a9e8125f67df0c41ded196e282bcd9aa40bb703637a2527
SHA512

3dcae80f39b429085d4b44aad6b3108e665a6d25e74694ef6730d171866abff60c55e7b4cb31f9520f8d825b041ddc7648aeac2977027bf4d4eb482567ef10d8
SSDEEP

49152:kZFIlmhRYg1OziGQGRCv6da/KMvxZdAMBwQoxXXujOl4MPMFvfldPSFrXxn3l:jl7i86hR+fWMeP43l

Score

10^/10

meshagent 050 lisboa - zonesoft backdoor defense_evasion discovery persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

meshagent

Version

Botnet

050 Lisboa - Zonesoft

http://fs1.suporte.com.pt:8943/agent.ashx

Attributes

mesh_id
0x313CE7C3BD97BA4DE25768478CFB01C142A538B329BAAB8F6B3AB4F4FFEEC83BF0EBE45A831A8A61950A237224143E83
server_id
0481CF775C2137A6BF13FF516D4E688220F467FB031867C5FBA7771274EA8996A04DF952EDD29FAA3F8190D6B3985533
wss
wss://fs1.suporte.com.pt:8943/agent.ashx

Signatures

Detects MeshAgent payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012101-25.dat	family_meshagent

MeshAgent
MeshAgent is an open source remote access trojan written in C++.
rat trojan backdoor meshagent
Meshagent family
meshagent

Modifies Windows Firewall 2 TTPs 4 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2640	netsh.exe
2636	netsh.exe
2756	netsh.exe
2736	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Mesh Agent\ImagePath = "\"C:\\Program Files\\Mesh Agent\\MeshAgent.exe\" --installedByUser=\"S-1-5-21-312935884-697965778-3955649944-1000\""	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe

Executes dropped EXE 2 IoCs

pid	Process
472	Process not Found
2400	MeshAgent.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mesh Agent\MeshAgent.db.tmp	MeshAgent.exe
File created	C:\Program Files\Mesh Agent\MeshAgent.db.tmp	MeshAgent.exe
File opened for modification	C:\Program Files\Mesh Agent\MeshAgent.log	MeshAgent.exe
File created	C:\Program Files\Mesh Agent\MeshAgent.msh	MeshAgent.exe
File created	C:\Program Files\Mesh Agent\MeshAgent.exe	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
File opened for modification	C:\Program Files\Mesh Agent\MeshAgent.db	MeshAgent.exe
File created	C:\Program Files\Mesh Agent\MeshAgent.db	MeshAgent.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 12 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2672	powershell.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: SeIncreaseQuotaPrivilege	2092	wmic.exe
Token: SeSecurityPrivilege	2092	wmic.exe
Token: SeTakeOwnershipPrivilege	2092	wmic.exe
Token: SeLoadDriverPrivilege	2092	wmic.exe
Token: SeSystemProfilePrivilege	2092	wmic.exe
Token: SeSystemtimePrivilege	2092	wmic.exe
Token: SeProfSingleProcessPrivilege	2092	wmic.exe
Token: SeIncBasePriorityPrivilege	2092	wmic.exe
Token: SeCreatePagefilePrivilege	2092	wmic.exe
Token: SeBackupPrivilege	2092	wmic.exe
Token: SeRestorePrivilege	2092	wmic.exe
Token: SeShutdownPrivilege	2092	wmic.exe
Token: SeDebugPrivilege	2092	wmic.exe
Token: SeSystemEnvironmentPrivilege	2092	wmic.exe
Token: SeRemoteShutdownPrivilege	2092	wmic.exe
Token: SeUndockPrivilege	2092	wmic.exe
Token: SeManageVolumePrivilege	2092	wmic.exe
Token: 33	2092	wmic.exe
Token: 34	2092	wmic.exe
Token: 35	2092	wmic.exe
Token: SeDebugPrivilege	2672	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2092	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	32
PID 2252 wrote to memory of 2092	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	32
PID 2252 wrote to memory of 2092	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	32
PID 2252 wrote to memory of 2792	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	35
PID 2252 wrote to memory of 2792	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	35
PID 2252 wrote to memory of 2792	2252	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	35
PID 2792 wrote to memory of 2672	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	37
PID 2792 wrote to memory of 2672	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	37
PID 2792 wrote to memory of 2672	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	37
PID 2792 wrote to memory of 2592	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	39
PID 2792 wrote to memory of 2592	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	39
PID 2792 wrote to memory of 2592	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	39
PID 2592 wrote to memory of 2736	2592	cmd.exe	41
PID 2592 wrote to memory of 2736	2592	cmd.exe	41
PID 2592 wrote to memory of 2736	2592	cmd.exe	41
PID 2792 wrote to memory of 2580	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	42
PID 2792 wrote to memory of 2580	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	42
PID 2792 wrote to memory of 2580	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	42
PID 2580 wrote to memory of 2640	2580	cmd.exe	44
PID 2580 wrote to memory of 2640	2580	cmd.exe	44
PID 2580 wrote to memory of 2640	2580	cmd.exe	44
PID 2792 wrote to memory of 2288	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	45
PID 2792 wrote to memory of 2288	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	45
PID 2792 wrote to memory of 2288	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	45
PID 2288 wrote to memory of 2636	2288	cmd.exe	47
PID 2288 wrote to memory of 2636	2288	cmd.exe	47
PID 2288 wrote to memory of 2636	2288	cmd.exe	47
PID 2792 wrote to memory of 1604	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	48
PID 2792 wrote to memory of 1604	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	48
PID 2792 wrote to memory of 1604	2792	2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe	48
PID 1604 wrote to memory of 2756	1604	cmd.exe	50
PID 1604 wrote to memory of 2756	1604	cmd.exe	50
PID 1604 wrote to memory of 2756	1604	cmd.exe	50

C:\Users\Admin\AppData\Local\Temp\2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Windows\system32\wbem\wmic.exe
  wmic os get oslanguage /FORMAT:LIST
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2092
- C:\Users\Admin\AppData\Local\Temp\2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe
  "C:\Users\Admin\AppData\Local\Temp\2025-01-28_8cd4a310e3c4f2ce52250eca4f2c630f_ismagent_ryuk_sliver.exe" -fullinstall
  2⤵
  - Sets service image path in registry
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    /C "Get-Module -ListAvailable -Name netsecurity"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2672
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {c85e6465-8b41-419a-b9e4-a748bdc7c160}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16990"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {c85e6465-8b41-419a-b9e4-a748bdc7c160}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16990
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:2736
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {1d811da2-8dd2-4c9b-fd06-922b4f61e3ae}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16991"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2580
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {1d811da2-8dd2-4c9b-fd06-922b4f61e3ae}" action=allow description="Mesh Central Agent Management Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=TCP profile="public,private,domain" interfacetype=any edge=yes localport=16991
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:2640
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {8dc3dc88-74a4-4d93-1ea9-eda3ec1d93df}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16990"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2288
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {8dc3dc88-74a4-4d93-1ea9-eda3ec1d93df}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16990
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:2636
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {1430d8a4-4972-4e94-a4ce-cb6a58f9198f}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16991"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1604
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {1430d8a4-4972-4e94-a4ce-cb6a58f9198f}" action=allow description="Mesh Central Agent Peer-to-Peer Traffic" dir=in program="C:\Program Files\Mesh Agent\MeshAgent.exe" protocol=UDP profile="public,private,domain" interfacetype=any edge=yes localport=16991
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:2756

C:\Program Files\Mesh Agent\MeshAgent.exe
"C:\Program Files\Mesh Agent\MeshAgent.exe" --installedByUser="S-1-5-21-312935884-697965778-3955649944-1000"
1⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Program Files\Mesh Agent\MeshAgent.exe

Filesize
2.9MB

MD5
8cd4a310e3c4f2ce52250eca4f2c630f

SHA1
2af4e53f40b5b28613d35c82b9768bc78d2fad56

SHA256
aa89ac89659bffee9a9e8125f67df0c41ded196e282bcd9aa40bb703637a2527

SHA512
3dcae80f39b429085d4b44aad6b3108e665a6d25e74694ef6730d171866abff60c55e7b4cb31f9520f8d825b041ddc7648aeac2977027bf4d4eb482567ef10d8

Download Submit
memory/2672-6-0x000000001B8A0000-0x000000001BB82000-memory.dmp

Filesize
2.9MB

Download
memory/2672-7-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download