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/2016-1-0x0000000000090000-0x000000000009E000-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
3888	powershell.exe
4348	powershell.exe
4516	powershell.exe
3400	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-1-5-21-493223053-2004649691-1575712786-1000\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-1-5-21-493223053-2004649691-1575712786-1000\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
3400	powershell.exe
3400	powershell.exe
3888	powershell.exe
3888	powershell.exe
4348	powershell.exe
4348	powershell.exe
4516	powershell.exe
4516	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe
Token: SeDebugPrivilege	3400	powershell.exe
Token: SeDebugPrivilege	3888	powershell.exe
Token: SeDebugPrivilege	4348	powershell.exe
Token: SeDebugPrivilege	4516	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3400	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	88
PID 2016 wrote to memory of 3400	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	88
PID 2016 wrote to memory of 3888	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	90
PID 2016 wrote to memory of 3888	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	90
PID 2016 wrote to memory of 4348	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	92
PID 2016 wrote to memory of 4348	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	92
PID 2016 wrote to memory of 4516	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	94
PID 2016 wrote to memory of 4516	2016	62ba4ec06510e37fb216b054b958f8d205e78e81963856e86aa05815d8bb46c9N.exe	94

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:2016
- 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:3400
- 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:3888
- 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:4348
- 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:4516

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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
1f545274ba19d9199a78f74cd05e8187

SHA1
4036cf78d3f310af42963c8f16ae27c5922b5dff

SHA256
3b4780cb2e226f4b05643c0b512960e694f21b35bbbe84d5c5e97628e1f8909c

SHA512
b0f66a6c32cb7f2f96b51c141ffe7df7f4fd61a792e6a3756f54b6d0df6f48d7a3bda23d46ee1e18a22ac995520fb9c4ca1b444d204bdd8f3e4b8651f59adc0d

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\Temp\__PSScriptPolicyTest_caabfln0.fkg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2016-1-0x0000000000090000-0x000000000009E000-memory.dmp

Filesize
56KB

Download
memory/2016-0-0x00007FFFDA613000-0x00007FFFDA615000-memory.dmp

Filesize
8KB

Download
memory/2016-54-0x00007FFFDA610000-0x00007FFFDB0D1000-memory.dmp

Filesize
10.8MB

Download
memory/2016-53-0x00007FFFDA610000-0x00007FFFDB0D1000-memory.dmp

Filesize
10.8MB

Download
memory/2016-52-0x00007FFFDA613000-0x00007FFFDA615000-memory.dmp

Filesize
8KB

Download
memory/3400-7-0x000001E7666C0000-0x000001E7666E2000-memory.dmp

Filesize
136KB

Download
memory/3400-16-0x00007FFFDA610000-0x00007FFFDB0D1000-memory.dmp

Filesize
10.8MB

Download
memory/3400-13-0x00007FFFDA610000-0x00007FFFDB0D1000-memory.dmp

Filesize
10.8MB

Download
memory/3400-12-0x00007FFFDA610000-0x00007FFFDB0D1000-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