meshagent | 55359047b2ba78d96cf00b4cd57445e7b68e7b0752f42a31805bf94f3f689ebf

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-01-2025 01:35

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General

Target

2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe
Size

2.9MB
MD5

783c6c51d2ea781d065bea1801241650
SHA1

cdb67c19a6d4177aa51f3cda66e08026a90e27e6
SHA256

55359047b2ba78d96cf00b4cd57445e7b68e7b0752f42a31805bf94f3f689ebf
SHA512

318daceee5bcfebdf385759ada5eb6aa08189b810c49cb75809b0be16c770d924cd94808fbc011c103616bb3199f6768bf703f6d1128294196b1ff8776e3cf8e
SSDEEP

49152:OiQagHg5EVhwQd+qrW+i1w+Tqc0KxZbDOCwMDbyeKw3FGMFvfjPW21I3iIJS:bg7hRdj9iMlHBSFBWZS

Score

10^/10

meshagent rmmtest backdoor discovery evasion persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

meshagent

Version

Botnet

RMMTest

http://meshcentral.com:443/agent.ashx

Attributes

mesh_id
0x36BCDD2BF134B3D2E0FF25BB329B4F57FF9F3B1CF6BE4AF56F50C0BC68C3113E24A5FA864D4BC9B58D873279FB76BA04
server_id
D01B0463C0C9E38D81254F7B22DD4DAD848302AEF186BFCFF1D61F4F73846D6F8C8C94D01D3CF1EACA3836F8E5D316A4
wss
wss://meshcentral.com:443/agent.ashx

Signatures

Detects MeshAgent payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016e73-18.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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2892	netsh.exe
2152	netsh.exe
1404	netsh.exe
564	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\""	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe

Executes dropped EXE 2 IoCs

pid	Process
476	Process not Found
472	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	2025-01-15_783c6c51d2ea781d065bea1801241650_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 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 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 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

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2804	powershell.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1280	wmic.exe
Token: SeSecurityPrivilege	1280	wmic.exe
Token: SeTakeOwnershipPrivilege	1280	wmic.exe
Token: SeLoadDriverPrivilege	1280	wmic.exe
Token: SeSystemProfilePrivilege	1280	wmic.exe
Token: SeSystemtimePrivilege	1280	wmic.exe
Token: SeProfSingleProcessPrivilege	1280	wmic.exe
Token: SeIncBasePriorityPrivilege	1280	wmic.exe
Token: SeCreatePagefilePrivilege	1280	wmic.exe
Token: SeBackupPrivilege	1280	wmic.exe
Token: SeRestorePrivilege	1280	wmic.exe
Token: SeShutdownPrivilege	1280	wmic.exe
Token: SeDebugPrivilege	1280	wmic.exe
Token: SeSystemEnvironmentPrivilege	1280	wmic.exe
Token: SeRemoteShutdownPrivilege	1280	wmic.exe
Token: SeUndockPrivilege	1280	wmic.exe
Token: SeManageVolumePrivilege	1280	wmic.exe
Token: 33	1280	wmic.exe
Token: 34	1280	wmic.exe
Token: 35	1280	wmic.exe
Token: SeIncreaseQuotaPrivilege	1280	wmic.exe
Token: SeSecurityPrivilege	1280	wmic.exe
Token: SeTakeOwnershipPrivilege	1280	wmic.exe
Token: SeLoadDriverPrivilege	1280	wmic.exe
Token: SeSystemProfilePrivilege	1280	wmic.exe
Token: SeSystemtimePrivilege	1280	wmic.exe
Token: SeProfSingleProcessPrivilege	1280	wmic.exe
Token: SeIncBasePriorityPrivilege	1280	wmic.exe
Token: SeCreatePagefilePrivilege	1280	wmic.exe
Token: SeBackupPrivilege	1280	wmic.exe
Token: SeRestorePrivilege	1280	wmic.exe
Token: SeShutdownPrivilege	1280	wmic.exe
Token: SeDebugPrivilege	1280	wmic.exe
Token: SeSystemEnvironmentPrivilege	1280	wmic.exe
Token: SeRemoteShutdownPrivilege	1280	wmic.exe
Token: SeUndockPrivilege	1280	wmic.exe
Token: SeManageVolumePrivilege	1280	wmic.exe
Token: 33	1280	wmic.exe
Token: 34	1280	wmic.exe
Token: 35	1280	wmic.exe
Token: SeDebugPrivilege	2804	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1280	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	31
PID 2436 wrote to memory of 1280	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	31
PID 2436 wrote to memory of 1280	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	31
PID 2436 wrote to memory of 2200	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	34
PID 2436 wrote to memory of 2200	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	34
PID 2436 wrote to memory of 2200	2436	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	34
PID 2200 wrote to memory of 2804	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	36
PID 2200 wrote to memory of 2804	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	36
PID 2200 wrote to memory of 2804	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	36
PID 2200 wrote to memory of 2844	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	38
PID 2200 wrote to memory of 2844	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	38
PID 2200 wrote to memory of 2844	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	38
PID 2844 wrote to memory of 2892	2844	cmd.exe	40
PID 2844 wrote to memory of 2892	2844	cmd.exe	40
PID 2844 wrote to memory of 2892	2844	cmd.exe	40
PID 2200 wrote to memory of 2772	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	41
PID 2200 wrote to memory of 2772	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	41
PID 2200 wrote to memory of 2772	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	41
PID 2772 wrote to memory of 2152	2772	cmd.exe	43
PID 2772 wrote to memory of 2152	2772	cmd.exe	43
PID 2772 wrote to memory of 2152	2772	cmd.exe	43
PID 2200 wrote to memory of 2664	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	44
PID 2200 wrote to memory of 2664	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	44
PID 2200 wrote to memory of 2664	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	44
PID 2664 wrote to memory of 1404	2664	cmd.exe	46
PID 2664 wrote to memory of 1404	2664	cmd.exe	46
PID 2664 wrote to memory of 1404	2664	cmd.exe	46
PID 2200 wrote to memory of 3060	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	47
PID 2200 wrote to memory of 3060	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	47
PID 2200 wrote to memory of 3060	2200	2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe	47
PID 3060 wrote to memory of 564	3060	cmd.exe	49
PID 3060 wrote to memory of 564	3060	cmd.exe	49
PID 3060 wrote to memory of 564	3060	cmd.exe	49

C:\Users\Admin\AppData\Local\Temp\2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\system32\wbem\wmic.exe
  wmic os get oslanguage /FORMAT:LIST
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1280
- C:\Users\Admin\AppData\Local\Temp\2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe
  "C:\Users\Admin\AppData\Local\Temp\2025-01-15_783c6c51d2ea781d065bea1801241650_ismagent_ryuk_sliver.exe" -fullinstall
  2⤵
  - Sets service image path in registry
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    /C "Get-Module -ListAvailable -Name netsecurity"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2804
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {f92d7818-0134-4d8f-fd6e-486365413ce2}" 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:2844
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {f92d7818-0134-4d8f-fd6e-486365413ce2}" 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:2892
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {1be07e11-d2a7-4e91-bb41-49277769ec68}" 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:2772
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {1be07e11-d2a7-4e91-bb41-49277769ec68}" 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:2152
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {367e581c-dea2-478e-1877-5432ccd84c57}" 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:2664
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {367e581c-dea2-478e-1877-5432ccd84c57}" 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:1404
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {858198d6-0ac8-4c81-6423-ddfb4877042f}" 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:3060
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {858198d6-0ac8-4c81-6423-ddfb4877042f}" 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:564

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:472

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
783c6c51d2ea781d065bea1801241650

SHA1
cdb67c19a6d4177aa51f3cda66e08026a90e27e6

SHA256
55359047b2ba78d96cf00b4cd57445e7b68e7b0752f42a31805bf94f3f689ebf

SHA512
318daceee5bcfebdf385759ada5eb6aa08189b810c49cb75809b0be16c770d924cd94808fbc011c103616bb3199f6768bf703f6d1128294196b1ff8776e3cf8e

Download Submit
memory/2804-6-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2804-7-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download