discordrat | c81ae973db641e3c60912166be8979a60b95253ae290c145b9a2133ad7a2ebb8

General

Target

StupidMonkey.exe
Size

70KB
MD5

4c785ba0487bfec51faf4788d564ee9f
SHA1

786fdc994a71d7e02a556e3f720b41a096a789f5
SHA256

c81ae973db641e3c60912166be8979a60b95253ae290c145b9a2133ad7a2ebb8
SHA512

b6b7fbd58e1c3657a81d17a974fc609c1af29dab6489685d2eea5e1397e12853c17086a537f7607aef6833f358965788adc961b44eeff21530ff89f9776eee06
SSDEEP

1536:X7eLuJn1XH70d76kbDD0k2jF16K7HmTzOt5YP:X79hpb0YkbDLE57HmTzOts

Score

10^/10

discordrat xworm execution persistence rat rootkit stealer trojan

Malware Config

Extracted

Family

xworm

C2

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 2 IoCs

resource	yara_rule
behavioral2/memory/4724-1-0x0000000000250000-0x0000000000268000-memory.dmp	family_xworm
behavioral2/files/0x000e000000023b74-71.dat	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
376	powershell.exe
324	powershell.exe
3100	powershell.exe
1940	powershell.exe

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	StupidMonkey.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
736	rsjmdy.exe
2448	Client Server Runtime Process
3900	Client Server Runtime Process

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "C:\\ProgramData\\Client Server Runtime Process"	StupidMonkey.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
30	discord.com
31	discord.com
35	discord.com
38	discord.com
39	discord.com

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
14	ip-api.com

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

System Information Discovery
T1082

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
2076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
376	powershell.exe
376	powershell.exe
324	powershell.exe
324	powershell.exe
3100	powershell.exe
3100	powershell.exe
1940	powershell.exe
1940	powershell.exe
4724	StupidMonkey.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4724	StupidMonkey.exe
Token: SeDebugPrivilege	376	powershell.exe
Token: SeDebugPrivilege	324	powershell.exe
Token: SeDebugPrivilege	3100	powershell.exe
Token: SeDebugPrivilege	1940	powershell.exe
Token: SeDebugPrivilege	736	rsjmdy.exe
Token: SeDebugPrivilege	2448	Client Server Runtime Process
Token: SeDebugPrivilege	3900	Client Server Runtime Process

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4724	StupidMonkey.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 376	4724	StupidMonkey.exe	87
PID 4724 wrote to memory of 376	4724	StupidMonkey.exe	87
PID 4724 wrote to memory of 324	4724	StupidMonkey.exe	89
PID 4724 wrote to memory of 324	4724	StupidMonkey.exe	89
PID 4724 wrote to memory of 3100	4724	StupidMonkey.exe	91
PID 4724 wrote to memory of 3100	4724	StupidMonkey.exe	91
PID 4724 wrote to memory of 1940	4724	StupidMonkey.exe	93
PID 4724 wrote to memory of 1940	4724	StupidMonkey.exe	93
PID 4724 wrote to memory of 2076	4724	StupidMonkey.exe	95
PID 4724 wrote to memory of 2076	4724	StupidMonkey.exe	95
PID 4724 wrote to memory of 736	4724	StupidMonkey.exe	108
PID 4724 wrote to memory of 736	4724	StupidMonkey.exe	108

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⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4724
- 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:376
- 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:324
- 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:3100
- 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:1940
- 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:2076
- C:\Users\Admin\AppData\Local\Temp\rsjmdy.exe
  "C:\Users\Admin\AppData\Local\Temp\rsjmdy.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:736

C:\ProgramData\Client Server Runtime Process
"C:\ProgramData\Client Server Runtime Process"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2448

C:\ProgramData\Client Server Runtime Process
"C:\ProgramData\Client Server Runtime Process"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\Client Server Runtime Process

Filesize
70KB

MD5
4c785ba0487bfec51faf4788d564ee9f

SHA1
786fdc994a71d7e02a556e3f720b41a096a789f5

SHA256
c81ae973db641e3c60912166be8979a60b95253ae290c145b9a2133ad7a2ebb8

SHA512
b6b7fbd58e1c3657a81d17a974fc609c1af29dab6489685d2eea5e1397e12853c17086a537f7607aef6833f358965788adc961b44eeff21530ff89f9776eee06

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Client Server Runtime Process.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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
e95adb52d58e281a1b2588fb63f649a8

SHA1
29d9e100bf4f8cf07ba367e0b2ba7f19651b98a1

SHA256
d83b509fca61f585536172fdbc05a0a3afd367af2feb9d9fe1532d03077a5328

SHA512
e100b19e044af84a520f783f5e5e917655800386f17f6d9c584ab6da55d99a97db35c138b9db914997ed0d34ea6bce36526f74c1af75b62fb24d580e03a27ccd

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

Filesize
944B

MD5
83685d101174171875b4a603a6c2a35c

SHA1
37be24f7c4525e17fa18dbd004186be3a9209017

SHA256
0c557845aab1da497bbff0e8fbe65cabf4cb2804b97ba8ae8c695a528af70870

SHA512
005a97a8e07b1840abdcef86a7881fd9bdc8acbfdf3eafe1dceb6374060626d81d789e57d87ca4096a39e28d5cca00f8945edff0a747591691ae75873d2b3fb5

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

Filesize
944B

MD5
b7189719e6df2c3dfc76197ec3f31f7a

SHA1
effd91412deadc87cc10ef76cdecc1e0b54b6d41

SHA256
1c72fa37d078b92c7e900b2e3d17c43c34d936a696a8ddf6c519f4a80308b892

SHA512
2df1f1d45844da7ffb17cdfb411f223e9c614c00f5cf7eb5ba92bf7ba174875af2a515371208286c95c0479c934ae2c6a83dfc0b54380be89db1eddd19faf978

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hy2vtinu.c02.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
78KB

MD5
24b361200a5fc61a62657c8ef7886d1f

SHA1
a6e4602b47f50e943603c5164bd6750e3b58a5ef

SHA256
7f4b62dd5a02a17056e390f59bca7a314d40bc3e8928307a56b558033dd58bb7

SHA512
a1081da6c801dbe649b25c7bc7fce26a20d22b574df0b9b0050ec8089acc29f86f28f77bdbd3610210452255162939832c7a7e35344a9335981e0fef4cd4542a

Download Submit
memory/376-5-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/376-18-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/376-11-0x0000021771FD0000-0x0000021771FF2000-memory.dmp

Filesize
136KB

Download
memory/376-4-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/376-3-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/736-68-0x000001A8E5830000-0x000001A8E5848000-memory.dmp

Filesize
96KB

Download
memory/736-69-0x000001A900000000-0x000001A9001C2000-memory.dmp

Filesize
1.8MB

Download
memory/736-70-0x000001A8806A0000-0x000001A880BC8000-memory.dmp

Filesize
5.2MB

Download
memory/4724-0-0x00007FFEC95C3000-0x00007FFEC95C5000-memory.dmp

Filesize
8KB

Download
memory/4724-56-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/4724-2-0x00007FFEC95C0000-0x00007FFECA081000-memory.dmp

Filesize
10.8MB

Download
memory/4724-1-0x0000000000250000-0x0000000000268000-memory.dmp

Filesize
96KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads