xworm | b21c789dbe0699a1ea6c1ccfac5d2dee5eb9f47ec2f219fc15e5f6e7df3027c3

General

Target

62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe
Size

34KB
MD5

9f2ca5e78023d1e89d1b72d5c5072a5e
SHA1

8d5cba96c8abb5159da6578fb31d82f299e91325
SHA256

b21c789dbe0699a1ea6c1ccfac5d2dee5eb9f47ec2f219fc15e5f6e7df3027c3
SHA512

9b4f77f48a388f4197a633f4f7102cb1c69166658fb29c45ad34101917963cc5f32b0cee22651de3f666762ce9ac91557010888151cbe772b5302ee3c03092f6
SSDEEP

768:AYBpz/QvWZqvoXu24OFrCxxF39XTp6LOjh/bUP:AYBpz/QvwtbFGrF39XV6LOjN4P

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:26848

on-modules.gl.at.ply.gg:26848

Mutex

wrmsNSNXixl9dMEG

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2948-1-0x0000000000230000-0x000000000023E000-memory.dmp	family_xworm

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
4836	powershell.exe
808	powershell.exe
4916	powershell.exe
1732	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Host = "C:\\Users\\Admin\\AppData\\Roaming\\Host"	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4836	powershell.exe
4836	powershell.exe
808	powershell.exe
808	powershell.exe
4916	powershell.exe
4916	powershell.exe
1732	powershell.exe
1732	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeDebugPrivilege	808	powershell.exe
Token: SeDebugPrivilege	4916	powershell.exe
Token: SeDebugPrivilege	1732	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 4836	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	90
PID 2948 wrote to memory of 4836	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	90
PID 2948 wrote to memory of 808	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	95
PID 2948 wrote to memory of 808	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	95
PID 2948 wrote to memory of 4916	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	97
PID 2948 wrote to memory of 4916	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	97
PID 2948 wrote to memory of 1732	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	101
PID 2948 wrote to memory of 1732	2948	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	101

C:\Users\Admin\AppData\Local\Temp\62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe
"C:\Users\Admin\AppData\Local\Temp\62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2948
- 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\62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4836
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:808
- 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\Roaming\Host'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4916
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Host'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
cb0cf19ebeba3256a05065693a1ca866

SHA1
c028aff9b6850c2bdd6673b74037630b4ee2ccd8

SHA256
58e1183323526c135119df281171285d98b5ce05ad00f201ca899cd43358e3fb

SHA512
811606a0c8545eac53127a3687c6b0fde595dd7e958ef11ae650d142d40ac5e86ebbd313dc17dfa86c091ee868dc1c9ed422c2e541c6de3487e0c50c1a3e8fbc

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

Filesize
944B

MD5
67e8893616f805af2411e2f4a1411b2a

SHA1
39bf1e1a0ddf46ce7c136972120f512d92827dcd

SHA256
ca0dfe104c1bf27f7e01999fcdabc16c6400c3da937c832c26bdbca322381d31

SHA512
164e911a9935e75c8be1a6ec3d31199a16ba2a1064da6c09d771b2a38dd7fddd142301ef55d67d90f306d3a454a1ce7b72e129ea42e44500b9b8c623a8d98b4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vmfqxht3.ads.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2948-1-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2948-0-0x00007FFE6DBB3000-0x00007FFE6DBB5000-memory.dmp

Filesize
8KB

Download
memory/2948-55-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/2948-54-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/4836-11-0x00000288772A0000-0x00000288772C2000-memory.dmp

Filesize
136KB

Download
memory/4836-18-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/4836-17-0x0000028876F50000-0x000002887716C000-memory.dmp

Filesize
2.1MB

Download
memory/4836-14-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/4836-13-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/4836-12-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads