discordrat | c81ae973db641e3c60912166be8979a60b95253ae290c145b9a2133ad7a2ebb8

Resubmissions

24-01-2025 19:14

250124-xxql4stmey 10

24-01-2025 09:33

250124-lh9wnasrhn 10

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 09:33

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General

Target

StupidMonkey.exe
Size

70KB
MD5

4c785ba0487bfec51faf4788d564ee9f
SHA1

786fdc994a71d7e02a556e3f720b41a096a789f5
SHA256

c81ae973db641e3c60912166be8979a60b95253ae290c145b9a2133ad7a2ebb8
SHA512

b6b7fbd58e1c3657a81d17a974fc609c1af29dab6489685d2eea5e1397e12853c17086a537f7607aef6833f358965788adc961b44eeff21530ff89f9776eee06
SSDEEP

1536:X7eLuJn1XH70d76kbDD0k2jF16K7HmTzOt5YP:X79hpb0YkbDLE57HmTzOts

Score

10^/10

discordrat xworm discovery execution persistence rat rootkit stealer trojan

Malware Config

Extracted

Family

xworm

wood-matches.gl.at.ply.gg:23086

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

Extracted

Family

discordrat

Attributes

discord_token
MTMzMDMyNzc3MjM3NTAyNzgxMg.GWNm0N.hjhDXtec3jd5n3sEjWHGfGyOO28kBaPWiS-HPA
server_id
1330267614202560512

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1972-1-0x0000000000AA0000-0x0000000000AB8000-memory.dmp	family_xworm

Discord RAT
A RAT written in C# using Discord as a C2.
stealer rootkit rat persistence discordrat
Discordrat family
discordrat
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

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
1976	powershell.exe
2800	powershell.exe
2720	powershell.exe
2660	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client Server Runtime Process.lnk	StupidMonkey.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client Server Runtime Process.lnk	StupidMonkey.exe

Executes dropped EXE 1 IoCs

pid	Process
296	nwoakg.exe

Loads dropped DLL 6 IoCs

pid	Process
1972	StupidMonkey.exe
1904	WerFault.exe
1904	WerFault.exe
1904	WerFault.exe
1904	WerFault.exe
1904	WerFault.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "C:\\ProgramData\\Client Server Runtime Process"	StupidMonkey.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.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
2900	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2800	powershell.exe
2720	powershell.exe
2660	powershell.exe
1976	powershell.exe
1972	StupidMonkey.exe
2756	chrome.exe
2756	chrome.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	StupidMonkey.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2660	powershell.exe
Token: SeDebugPrivilege	1976	powershell.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe
2756	chrome.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1972	StupidMonkey.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 2800	1972	StupidMonkey.exe	31
PID 1972 wrote to memory of 2800	1972	StupidMonkey.exe	31
PID 1972 wrote to memory of 2800	1972	StupidMonkey.exe	31
PID 1972 wrote to memory of 2720	1972	StupidMonkey.exe	33
PID 1972 wrote to memory of 2720	1972	StupidMonkey.exe	33
PID 1972 wrote to memory of 2720	1972	StupidMonkey.exe	33
PID 1972 wrote to memory of 2660	1972	StupidMonkey.exe	35
PID 1972 wrote to memory of 2660	1972	StupidMonkey.exe	35
PID 1972 wrote to memory of 2660	1972	StupidMonkey.exe	35
PID 1972 wrote to memory of 1976	1972	StupidMonkey.exe	37
PID 1972 wrote to memory of 1976	1972	StupidMonkey.exe	37
PID 1972 wrote to memory of 1976	1972	StupidMonkey.exe	37
PID 1972 wrote to memory of 2900	1972	StupidMonkey.exe	39
PID 1972 wrote to memory of 2900	1972	StupidMonkey.exe	39
PID 1972 wrote to memory of 2900	1972	StupidMonkey.exe	39
PID 1972 wrote to memory of 296	1972	StupidMonkey.exe	42
PID 1972 wrote to memory of 296	1972	StupidMonkey.exe	42
PID 1972 wrote to memory of 296	1972	StupidMonkey.exe	42
PID 296 wrote to memory of 1904	296	nwoakg.exe	43
PID 296 wrote to memory of 1904	296	nwoakg.exe	43
PID 296 wrote to memory of 1904	296	nwoakg.exe	43
PID 2756 wrote to memory of 2860	2756	chrome.exe	47
PID 2756 wrote to memory of 2860	2756	chrome.exe	47
PID 2756 wrote to memory of 2860	2756	chrome.exe	47
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1776	2756	chrome.exe	49
PID 2756 wrote to memory of 1052	2756	chrome.exe	50

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\StupidMonkey.exe
"C:\Users\Admin\AppData\Local\Temp\StupidMonkey.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\StupidMonkey.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'StupidMonkey.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2720
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Client Server Runtime Process'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Client Server Runtime Process'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1976
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Client Server Runtime Process" /tr "C:\ProgramData\Client Server Runtime Process"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\nwoakg.exe
  "C:\Users\Admin\AppData\Local\Temp\nwoakg.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:296
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 296 -s 596
    3⤵
    - Loads dropped DLL
    PID:1904

C:\Windows\system32\taskeng.exe
taskeng.exe {27D23627-06BC-4107-8D63-8E501E40B2B1} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
PID:1736

C:\Windows\system32\calc.exe
"C:\Windows\system32\calc.exe"
1⤵
PID:2368

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef7809758,0x7fef7809768,0x7fef7809778
  2⤵
  PID:2860
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1144 --field-trial-handle=1372,i,14139531165181368329,17435106598051674432,131072 /prefetch:2
  2⤵
  PID:1776
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=1516 --field-trial-handle=1372,i,14139531165181368329,17435106598051674432,131072 /prefetch:8
  2⤵
  PID:1052
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1600 --field-trial-handle=1372,i,14139531165181368329,17435106598051674432,131072 /prefetch:8
  2⤵
  PID:3056
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2320 --field-trial-handle=1372,i,14139531165181368329,17435106598051674432,131072 /prefetch:1
  2⤵
  PID:320
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2328 --field-trial-handle=1372,i,14139531165181368329,17435106598051674432,131072 /prefetch:1
  2⤵
  PID:2504

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:300

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

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp

Filesize
16B

MD5
18e723571b00fb1694a3bad6c78e4054

SHA1
afcc0ef32d46fe59e0483f9a3c891d3034d12f32

SHA256
8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa

SHA512
43bb0af7d3984012d2d67ca6b71f0201e5b948e6fe26a899641c4c6f066c59906d468ddf7f1df5ea5fa33c2bc5ea8219c0f2c82e0a5c365ad7581b898a8859e2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\1UAIIXJ0CT2EWD6IU6MH.temp

Filesize
7KB

MD5
d12ffe4ff8697354bc03a6714072275b

SHA1
0ec53b27c31d247d2048a7addd64002e9f67b65c

SHA256
0e97844839663bfb3142bff6d1de90df9be4147b2b13269b9420c00a2146eb31

SHA512
4549e980dc08ee6a39a07a22f910e4b796d8aac07f2c77899138e58eea73846ecc560614ebe7b22f0f82ae432c39a5df60fb74bf3893a1f2eb043ec295d01100

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

Filesize
78KB

MD5
24b361200a5fc61a62657c8ef7886d1f

SHA1
a6e4602b47f50e943603c5164bd6750e3b58a5ef

SHA256
7f4b62dd5a02a17056e390f59bca7a314d40bc3e8928307a56b558033dd58bb7

SHA512
a1081da6c801dbe649b25c7bc7fce26a20d22b574df0b9b0050ec8089acc29f86f28f77bdbd3610210452255162939832c7a7e35344a9335981e0fef4cd4542a

Download Submit
memory/296-38-0x000000013FDF0000-0x000000013FE08000-memory.dmp

Filesize
96KB

Download
memory/1972-2-0x000007FEF6640000-0x000007FEF702C000-memory.dmp

Filesize
9.9MB

Download
memory/1972-0-0x000007FEF6643000-0x000007FEF6644000-memory.dmp

Filesize
4KB

Download
memory/1972-31-0x000007FEF6640000-0x000007FEF702C000-memory.dmp

Filesize
9.9MB

Download
memory/1972-45-0x0000000001FD0000-0x0000000001FDC000-memory.dmp

Filesize
48KB

Download
memory/1972-1-0x0000000000AA0000-0x0000000000AB8000-memory.dmp

Filesize
96KB

Download
memory/2720-15-0x000000001B780000-0x000000001BA62000-memory.dmp

Filesize
2.9MB

Download
memory/2720-16-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2800-7-0x0000000002D90000-0x0000000002E10000-memory.dmp

Filesize
512KB

Download
memory/2800-8-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download
memory/2800-9-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download