xmrig | 4b4e596641d0dd9eece8a24556fd1246056cbc315a79675a7400927858bbd7c2

Analysis

max time kernel
150s
max time network
148s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
18/10/2024, 18:03

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General

Target

syslmgrsvc.exe
Size

93KB
MD5

a318cc45e79498b93e40d5e5b9b76be4
SHA1

4ebc9969cc3c330741c377e22a5fb0cdb8ce5fd5
SHA256

4b4e596641d0dd9eece8a24556fd1246056cbc315a79675a7400927858bbd7c2
SHA512

3131d627837a3cafdf532173ccadd4beff933ee3d5e050366153434b1394c4d57056b4d273ddb826a1a0478caa83e1f6e095e83366102ae1d3705ab2d3ec0e2c
SSDEEP

1536:zL0IGzbFmav82I3dTCPu0864k/+ELInCSA+HK:30poOPPuRxk/jr+HK

Score

10^/10

xmrig discovery evasion execution miner trojan

Malware Config

Signatures

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wuauserv\Start = "4"	syslmgrsvc.exe

Suspicious use of NtCreateUserProcessOtherParentProcess 5 IoCs

description	pid	Process	procid_target
PID 1768 created 1424	1768	3567533553.exe	21
PID 1768 created 1424	1768	3567533553.exe	21
PID 304 created 1424	304	winupsecvmgr.exe	21
PID 304 created 1424	304	winupsecvmgr.exe	21
PID 304 created 1424	304	winupsecvmgr.exe	21

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	syslmgrsvc.exe

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

XMRig Miner payload 2 IoCs

miner

resource	yara_rule
behavioral1/memory/304-70-0x000000013F620000-0x000000013FBB7000-memory.dmp	xmrig
behavioral1/memory/1592-73-0x0000000140000000-0x00000001407EF000-memory.dmp	xmrig

Downloads MZ/PE file

Executes dropped EXE 5 IoCs

pid	Process
1284	3364426728.exe
2696	3155719585.exe
560	1010610963.exe
1768	3567533553.exe
304	winupsecvmgr.exe

Loads dropped DLL 5 IoCs

pid	Process
2112	syslmgrsvc.exe
2112	syslmgrsvc.exe
2112	syslmgrsvc.exe
560	1010610963.exe
1952	taskeng.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1"	syslmgrsvc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	syslmgrsvc.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2100	powershell.exe
2792	powershell.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 304 set thread context of 1600	304	winupsecvmgr.exe	53
PID 304 set thread context of 1592	304	winupsecvmgr.exe	54

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syslmgrsvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1010610963.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2460	schtasks.exe
2408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1284	3364426728.exe
1768	3567533553.exe
1768	3567533553.exe
2100	powershell.exe
1768	3567533553.exe
1768	3567533553.exe
304	winupsecvmgr.exe
304	winupsecvmgr.exe
2792	powershell.exe
304	winupsecvmgr.exe
304	winupsecvmgr.exe
304	winupsecvmgr.exe
304	winupsecvmgr.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	3364426728.exe
Token: SeDebugPrivilege	2100	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeLockMemoryPrivilege	1592	dwm.exe
Token: SeLockMemoryPrivilege	1592	dwm.exe

Suspicious use of FindShellTrayWindow 11 IoCs

pid	Process
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe

Suspicious use of SendNotifyMessage 11 IoCs

pid	Process
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe
1592	dwm.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 1284	2112	syslmgrsvc.exe	32
PID 2112 wrote to memory of 1284	2112	syslmgrsvc.exe	32
PID 2112 wrote to memory of 1284	2112	syslmgrsvc.exe	32
PID 2112 wrote to memory of 1284	2112	syslmgrsvc.exe	32
PID 1284 wrote to memory of 860	1284	3364426728.exe	33
PID 1284 wrote to memory of 860	1284	3364426728.exe	33
PID 1284 wrote to memory of 860	1284	3364426728.exe	33
PID 1284 wrote to memory of 576	1284	3364426728.exe	35
PID 1284 wrote to memory of 576	1284	3364426728.exe	35
PID 1284 wrote to memory of 576	1284	3364426728.exe	35
PID 860 wrote to memory of 2212	860	cmd.exe	37
PID 860 wrote to memory of 2212	860	cmd.exe	37
PID 860 wrote to memory of 2212	860	cmd.exe	37
PID 576 wrote to memory of 1076	576	cmd.exe	38
PID 576 wrote to memory of 1076	576	cmd.exe	38
PID 576 wrote to memory of 1076	576	cmd.exe	38
PID 2112 wrote to memory of 2696	2112	syslmgrsvc.exe	39
PID 2112 wrote to memory of 2696	2112	syslmgrsvc.exe	39
PID 2112 wrote to memory of 2696	2112	syslmgrsvc.exe	39
PID 2112 wrote to memory of 2696	2112	syslmgrsvc.exe	39
PID 2112 wrote to memory of 560	2112	syslmgrsvc.exe	40
PID 2112 wrote to memory of 560	2112	syslmgrsvc.exe	40
PID 2112 wrote to memory of 560	2112	syslmgrsvc.exe	40
PID 2112 wrote to memory of 560	2112	syslmgrsvc.exe	40
PID 560 wrote to memory of 1768	560	1010610963.exe	42
PID 560 wrote to memory of 1768	560	1010610963.exe	42
PID 560 wrote to memory of 1768	560	1010610963.exe	42
PID 560 wrote to memory of 1768	560	1010610963.exe	42
PID 2100 wrote to memory of 2460	2100	powershell.exe	45
PID 2100 wrote to memory of 2460	2100	powershell.exe	45
PID 2100 wrote to memory of 2460	2100	powershell.exe	45
PID 1952 wrote to memory of 304	1952	taskeng.exe	49
PID 1952 wrote to memory of 304	1952	taskeng.exe	49
PID 1952 wrote to memory of 304	1952	taskeng.exe	49
PID 2792 wrote to memory of 2408	2792	powershell.exe	52
PID 2792 wrote to memory of 2408	2792	powershell.exe	52
PID 2792 wrote to memory of 2408	2792	powershell.exe	52
PID 304 wrote to memory of 1600	304	winupsecvmgr.exe	53
PID 304 wrote to memory of 1592	304	winupsecvmgr.exe	54

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1424
- C:\Users\Admin\AppData\Local\Temp\syslmgrsvc.exe
  "C:\Users\Admin\AppData\Local\Temp\syslmgrsvc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Loads dropped DLL
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Users\Admin\AppData\Local\Temp\3364426728.exe
    C:\Users\Admin\AppData\Local\Temp\3364426728.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1284
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:860
    - - C:\Windows\system32\reg.exe
        
        reg delete "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "Windows Upgrade Manager" /f
        5⤵
        
        PID:2212
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /delete /f /tn "Windows Upgrade Manager"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:576
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /delete /f /tn "Windows Upgrade Manager"
        5⤵
        
        PID:1076
- - C:\Users\Admin\AppData\Local\Temp\3155719585.exe
    C:\Users\Admin\AppData\Local\Temp\3155719585.exe
    3⤵
    - Executes dropped EXE
    PID:2696
- - C:\Users\Admin\AppData\Local\Temp\1010610963.exe
    C:\Users\Admin\AppData\Local\Temp\1010610963.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:560
  - - C:\Users\Admin\AppData\Local\Temp\3567533553.exe
      C:\Users\Admin\AppData\Local\Temp\3567533553.exe
      4⤵
      Suspicious use of NtCreateUserProcessOtherParentProcess
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:1768
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /tn "Microsoft Windows Security" /tr "'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe'"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2460
- C:\Windows\System32\schtasks.exe
  C:\Windows\System32\schtasks.exe /run /tn "Microsoft Windows Security"
  2⤵
  PID:2456
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#evrkcgqew#> IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /tn 'Microsoft Windows Security' /tr '''C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe') -Trigger (New-ScheduledTaskTrigger -AtLogOn) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'Microsoft Windows Security' -RunLevel 'Highest' -Force; }
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /tn "Microsoft Windows Security" /tr "'C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe'"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2408
- C:\Windows\System32\conhost.exe
  C:\Windows\System32\conhost.exe
  2⤵
  PID:1600
- C:\Windows\System32\dwm.exe
  C:\Windows\System32\dwm.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1592

C:\Windows\system32\taskeng.exe
taskeng.exe {64186CED-DCF2-4BBB-914C-617C756322F6} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1952
- C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe
  "C:\Users\Admin\Microsoft Windows Security\winupsecvmgr.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\299396540.exe

Filesize
108KB

MD5
1fcb78fb6cf9720e9d9494c42142d885

SHA1
fef9c2e728ab9d56ce9ed28934b3182b6f1d5379

SHA256
84652bb8c63ca4fd7eb7a2d6ef44029801f3057aa2961867245a3a765928dd02

SHA512
cdf58e463af1784aea86995b3e5d6b07701c5c4095e30ec80cc901ffd448c6f4f714c521bf8796ffa8c47538bf8bf5351e157596efaa7ab88155d63dc33f7dc3

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
a208a5ffb69432c08a746c63aad5581c

SHA1
4cb050ad3c739ae48fd112b1c8070025a792445d

SHA256
43f273dc76919b1647e7e3a45913540d6a88abe282bcfd2d35190da984674e60

SHA512
a44035af6b0aad37d65662d37fad4b5855b83dc72680caec5e681b11db1b6e22e7e08a15e70295147621cfa30cecd61bc4c0e3918a822e604bdaafb1abfdd38d

Download Submit
\Users\Admin\AppData\Local\Temp\1010610963.exe

Filesize
10KB

MD5
96509ab828867d81c1693b614b22f41d

SHA1
c5f82005dbda43cedd86708cc5fc3635a781a67e

SHA256
a9de2927b0ec45cf900508fec18531c04ee9fa8a5dfe2fc82c67d9458cf4b744

SHA512
ff603117a06da8fb2386c1d2049a5896774e41f34d05951ecd4e7b5fc9da51a373e3fcf61af3577ff78490cf898471ce8e71eae848a12812fe98cd7e76e1a9ca

Download Submit
\Users\Admin\AppData\Local\Temp\3155719585.exe

Filesize
15KB

MD5
0c37ee292fec32dba0420e6c94224e28

SHA1
012cbdddaddab319a4b3ae2968b42950e929c46b

SHA256
981d724feebc36777e99513dc061d1f009e589f965c920797285c46d863060d1

SHA512
2b60b571c55d0441ba0cfc695f9db5cd12660ebec7effc7e893c3b7a1c6cb6149df487c31b8d748697e260cbc4af29331592b705ea9638f64a711c7a6164628b

Download Submit
\Users\Admin\AppData\Local\Temp\3364426728.exe

Filesize
8KB

MD5
cb8420e681f68db1bad5ed24e7b22114

SHA1
416fc65d538d3622f5ca71c667a11df88a927c31

SHA256
5850892f67f85991b31fc90f62c8b7791afeb3c08ae1877d857aa2b59471a2ea

SHA512
baaabcc4ad5d409267a34ed7b20e4afb4d247974bfc581d39aae945e5bf8a673a1f8eacae2e6783480c8baaeb0a80d028274a202d456f13d0af956afa0110fdf

Download Submit
\Users\Admin\AppData\Local\Temp\3567533553.exe

Filesize
5.6MB

MD5
13b26b2c7048a92d6a843c1302618fad

SHA1
89c2dfc01ac12ef2704c7669844ec69f1700c1ca

SHA256
1753ad35ece25ab9a19048c70062e9170f495e313d7355ebbba59c38f5d90256

SHA512
d6aff89b61c9945002a6798617ad304612460a607ef1cfbdcb32f8932ca648bcee1d5f2e0321bb4c58c1f4642b1e0ececc1eb82450fdec7dff69b5389f195455

Download Submit
memory/304-70-0x000000013F620000-0x000000013FBB7000-memory.dmp

Filesize
5.6MB

Download
memory/1284-20-0x000000013FB90000-0x000000013FB96000-memory.dmp

Filesize
24KB

Download
memory/1284-19-0x000007FEF5A03000-0x000007FEF5A04000-memory.dmp

Filesize
4KB

Download
memory/1592-73-0x0000000140000000-0x00000001407EF000-memory.dmp

Filesize
7.9MB

Download
memory/1592-71-0x00000000001B0000-0x00000000001D0000-memory.dmp

Filesize
128KB

Download
memory/1600-72-0x0000000140000000-0x0000000140029000-memory.dmp

Filesize
164KB

Download
memory/1768-55-0x000000013F020000-0x000000013F5B7000-memory.dmp

Filesize
5.6MB

Download
memory/2100-52-0x00000000026D0000-0x00000000026D8000-memory.dmp

Filesize
32KB

Download
memory/2100-51-0x000000001B570000-0x000000001B852000-memory.dmp

Filesize
2.9MB

Download
memory/2792-65-0x0000000001FB0000-0x0000000001FB8000-memory.dmp

Filesize
32KB

Download
memory/2792-64-0x000000001B550000-0x000000001B832000-memory.dmp

Filesize
2.9MB

Download