meshagent | cfc9778f772c8c8daa33a520e3adbfa7fad6b33ee0d5dd104f5580eaf52eed82

Analysis

max time kernel
141s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 02:21

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General

Target

2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe
Size

2.9MB
MD5

0aa9dc10bf05ec4c4d4b9baa5cbb6f1f
SHA1

6f157cb52d687a9b960bf67aa2448fc7e5d2db17
SHA256

cfc9778f772c8c8daa33a520e3adbfa7fad6b33ee0d5dd104f5580eaf52eed82
SHA512

cb36426922341cf3586caa15cbf05982df8ed9df4cc4faccb1c9ac4e3c193a17ac04cc4c0987bcf6f6223c07e6ff3055be3d1d00b963fb65495887916179e13d
SSDEEP

49152:iiQagHg5EVhwQd+qrW+i1w+Tqc0KxZbDOCwMDbyeKw3FGMFvfjPW21I3iIJn:3g7hRdj9iMlHBSFBWZn

Score

10^/10

meshagent test backdoor discovery evasion persistence privilege_escalation rat trojan

Malware Config

Extracted

Family

meshagent

Version

Botnet

test

http://heimdall.hostedhero.com:443/agent.ashx

Attributes

mesh_id
0x4E4070D78AFFA88AFDD57BD66456CDBE2034549498474E2723BF29A67E0608F067A66207C3C42FCD04E348988CD8E892
server_id
316B450D4320A8D7AF354D9F06DF347C98693E4AA9014FC7CFEF9940F3F338B0853FADD2076DF2D06D5810331C87BF50
wss
wss://heimdall.hostedhero.com:443/agent.ashx

Signatures

Detects MeshAgent payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x0007000000019219-26.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

Processes:

netsh.exenetsh.exenetsh.exenetsh.exe

pid	Process
2528	netsh.exe
2772	netsh.exe
1224	netsh.exe
2824	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Mesh Agent\ImagePath = "\"C:\\Program Files\\Mesh Agent\\MeshAgent.exe\" --installedByUser=\"S-1-5-21-3551809350-4263495960-1443967649-1000\""	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe

Executes dropped EXE 2 IoCs

Processes:

MeshAgent.exe

pid	Process
476
1812	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

Processes:

2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exeMeshAgent.exe

description	ioc	Process
File created	C:\Program Files\Mesh Agent\MeshAgent.exe	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_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
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

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

Processes:

netsh.exenetsh.exenetsh.exenetsh.exe

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid	Process
2764	powershell.exe

Suspicious use of AdjustPrivilegeToken 41 IoCs

Processes:

wmic.exepowershell.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2044	wmic.exe
Token: SeSecurityPrivilege	2044	wmic.exe
Token: SeTakeOwnershipPrivilege	2044	wmic.exe
Token: SeLoadDriverPrivilege	2044	wmic.exe
Token: SeSystemProfilePrivilege	2044	wmic.exe
Token: SeSystemtimePrivilege	2044	wmic.exe
Token: SeProfSingleProcessPrivilege	2044	wmic.exe
Token: SeIncBasePriorityPrivilege	2044	wmic.exe
Token: SeCreatePagefilePrivilege	2044	wmic.exe
Token: SeBackupPrivilege	2044	wmic.exe
Token: SeRestorePrivilege	2044	wmic.exe
Token: SeShutdownPrivilege	2044	wmic.exe
Token: SeDebugPrivilege	2044	wmic.exe
Token: SeSystemEnvironmentPrivilege	2044	wmic.exe
Token: SeRemoteShutdownPrivilege	2044	wmic.exe
Token: SeUndockPrivilege	2044	wmic.exe
Token: SeManageVolumePrivilege	2044	wmic.exe
Token: 33	2044	wmic.exe
Token: 34	2044	wmic.exe
Token: 35	2044	wmic.exe
Token: SeIncreaseQuotaPrivilege	2044	wmic.exe
Token: SeSecurityPrivilege	2044	wmic.exe
Token: SeTakeOwnershipPrivilege	2044	wmic.exe
Token: SeLoadDriverPrivilege	2044	wmic.exe
Token: SeSystemProfilePrivilege	2044	wmic.exe
Token: SeSystemtimePrivilege	2044	wmic.exe
Token: SeProfSingleProcessPrivilege	2044	wmic.exe
Token: SeIncBasePriorityPrivilege	2044	wmic.exe
Token: SeCreatePagefilePrivilege	2044	wmic.exe
Token: SeBackupPrivilege	2044	wmic.exe
Token: SeRestorePrivilege	2044	wmic.exe
Token: SeShutdownPrivilege	2044	wmic.exe
Token: SeDebugPrivilege	2044	wmic.exe
Token: SeSystemEnvironmentPrivilege	2044	wmic.exe
Token: SeRemoteShutdownPrivilege	2044	wmic.exe
Token: SeUndockPrivilege	2044	wmic.exe
Token: SeManageVolumePrivilege	2044	wmic.exe
Token: 33	2044	wmic.exe
Token: 34	2044	wmic.exe
Token: 35	2044	wmic.exe
Token: SeDebugPrivilege	2764	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.execmd.execmd.execmd.execmd.exe

description	pid	Process	procid_target
PID 1864 wrote to memory of 2044	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	31
PID 1864 wrote to memory of 2044	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	31
PID 1864 wrote to memory of 2044	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	31
PID 1864 wrote to memory of 2672	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	35
PID 1864 wrote to memory of 2672	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	35
PID 1864 wrote to memory of 2672	1864	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	35
PID 2672 wrote to memory of 2764	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	37
PID 2672 wrote to memory of 2764	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	37
PID 2672 wrote to memory of 2764	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	37
PID 2672 wrote to memory of 2784	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	39
PID 2672 wrote to memory of 2784	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	39
PID 2672 wrote to memory of 2784	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	39
PID 2784 wrote to memory of 2824	2784	cmd.exe	41
PID 2784 wrote to memory of 2824	2784	cmd.exe	41
PID 2784 wrote to memory of 2824	2784	cmd.exe	41
PID 2672 wrote to memory of 2640	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	42
PID 2672 wrote to memory of 2640	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	42
PID 2672 wrote to memory of 2640	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	42
PID 2640 wrote to memory of 2528	2640	cmd.exe	44
PID 2640 wrote to memory of 2528	2640	cmd.exe	44
PID 2640 wrote to memory of 2528	2640	cmd.exe	44
PID 2672 wrote to memory of 2696	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	45
PID 2672 wrote to memory of 2696	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	45
PID 2672 wrote to memory of 2696	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	45
PID 2696 wrote to memory of 2772	2696	cmd.exe	47
PID 2696 wrote to memory of 2772	2696	cmd.exe	47
PID 2696 wrote to memory of 2772	2696	cmd.exe	47
PID 2672 wrote to memory of 1080	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	48
PID 2672 wrote to memory of 1080	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	48
PID 2672 wrote to memory of 1080	2672	2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe	48
PID 1080 wrote to memory of 1224	1080	cmd.exe	50
PID 1080 wrote to memory of 1224	1080	cmd.exe	50
PID 1080 wrote to memory of 1224	1080	cmd.exe	50

C:\Users\Admin\AppData\Local\Temp\2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\system32\wbem\wmic.exe
  wmic os get oslanguage /FORMAT:LIST
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2044
- C:\Users\Admin\AppData\Local\Temp\2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-12-03_0aa9dc10bf05ec4c4d4b9baa5cbb6f1f_ismagent_ryuk_sliver.exe" -fullinstall
  2⤵
  - Sets service image path in registry
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    /C "Get-Module -ListAvailable -Name netsecurity"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2764
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {bda3e1bd-c7e5-4d9c-4226-fabadce2cb90}" 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:2784
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-1) {bda3e1bd-c7e5-4d9c-4226-fabadce2cb90}" 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:2824
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {9e829013-404e-4790-e065-498673d8438f}" 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:2640
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Management Traffic (TCP-2) {9e829013-404e-4790-e065-498673d8438f}" 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:2528
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {e3dda573-d48a-4086-8998-7dd90f5f1bbd}" 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:2696
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-1) {e3dda573-d48a-4086-8998-7dd90f5f1bbd}" 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:2772
- - C:\Windows\System32\cmd.exe
    /C "netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {1f19d7a7-a357-4996-56b9-8fb02f371bfb}" 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:1080
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="Mesh Agent Peer-to-Peer Traffic (UDP-2) {1f19d7a7-a357-4996-56b9-8fb02f371bfb}" 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:1224

C:\Program Files\Mesh Agent\MeshAgent.exe
"C:\Program Files\Mesh Agent\MeshAgent.exe" --installedByUser="S-1-5-21-3551809350-4263495960-1443967649-1000"
1⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:1812

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

C:\Program Files\Mesh Agent\MeshAgent.exe

Filesize
2.9MB

MD5
0aa9dc10bf05ec4c4d4b9baa5cbb6f1f

SHA1
6f157cb52d687a9b960bf67aa2448fc7e5d2db17

SHA256
cfc9778f772c8c8daa33a520e3adbfa7fad6b33ee0d5dd104f5580eaf52eed82

SHA512
cb36426922341cf3586caa15cbf05982df8ed9df4cc4faccb1c9ac4e3c193a17ac04cc4c0987bcf6f6223c07e6ff3055be3d1d00b963fb65495887916179e13d

Download Submit
memory/2764-6-0x000000001B540000-0x000000001B822000-memory.dmp

Filesize
2.9MB

Download
memory/2764-7-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download