xworm | 8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e

General

Target

8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe
Size

275KB
MD5

bac631aa713e238ca4cc65b620736715
SHA1

d0f7bcda4d2fdcf3e1f41859e5251d021603f909
SHA256

8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e
SHA512

731cc3e56c4b48b278c512712068c815fcd989ed5250c2443c3e38d36eac8e40d969d9b84dfbd1e28fe80c555255006440ec24aa904c63e2d31a086a8bfb11d3
SSDEEP

3072:RdOB4dT+b7chk6qvFORJgmXbcK0L4AFD/l8xZ4uIxPLKKx03fJqWkG1SpPlpQJQU:RdOCob7oOEbGCIEfWcSlaUM/g

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:57577

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/208-1-0x0000000000C10000-0x0000000000C5A000-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
3684	powershell.exe
1376	powershell.exe
1476	powershell.exe
3388	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	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.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\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3684	powershell.exe
3684	powershell.exe
1376	powershell.exe
1376	powershell.exe
1476	powershell.exe
1476	powershell.exe
3388	powershell.exe
3388	powershell.exe
208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe
Token: SeDebugPrivilege	3684	powershell.exe
Token: SeDebugPrivilege	1376	powershell.exe
Token: SeDebugPrivilege	1476	powershell.exe
Token: SeDebugPrivilege	3388	powershell.exe
Token: SeDebugPrivilege	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 3684	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	90
PID 208 wrote to memory of 3684	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	90
PID 208 wrote to memory of 1376	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	93
PID 208 wrote to memory of 1376	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	93
PID 208 wrote to memory of 1476	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	97
PID 208 wrote to memory of 1476	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	97
PID 208 wrote to memory of 3388	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	99
PID 208 wrote to memory of 3388	208	8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe	99

C:\Users\Admin\AppData\Local\Temp\8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe
"C:\Users\Admin\AppData\Local\Temp\8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.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:208
- 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\8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3684
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '8f9e0d533fa5774f0653db9f900b4ef4356d8b3f1f8a90ae5f57bab24f14d86e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1376
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3388

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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
944B

MD5
96e3b86880fedd5afc001d108732a3e5

SHA1
8fc17b39d744a9590a6d5897012da5e6757439a3

SHA256
c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294

SHA512
909b1968f7204fa7029109b02232d8cc5438f6b4dc7c9044e4e47c59fcee538199b13029e36592b12ed573d48a308dd4822d2ced4129ab08d4111897e02be55d

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

Filesize
944B

MD5
a9293ef980c925abe33d940554ed8575

SHA1
9b6d85f2595f7fd4923f52b21ab7607279066969

SHA256
8313a191aa9d11cce868d95ac9a9b1609275bfe93131fcb6e547b985b0242fbe

SHA512
2003d90bb2bc89378ccaeb9c5edf76b2dfd93c80369d063e56141abb8d7fea6acee6a103874ab227bc1548437269c8e4ee5174bf482ecf3d66c38f3e0ba35d85

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sqlzjphv.yrt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/208-0-0x00007FFC80173000-0x00007FFC80175000-memory.dmp

Filesize
8KB

Download
memory/208-1-0x0000000000C10000-0x0000000000C5A000-memory.dmp

Filesize
296KB

Download
memory/208-52-0x00007FFC80173000-0x00007FFC80175000-memory.dmp

Filesize
8KB

Download
memory/208-57-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/208-58-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/3684-13-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/3684-14-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/3684-17-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/3684-12-0x00007FFC80170000-0x00007FFC80C31000-memory.dmp

Filesize
10.8MB

Download
memory/3684-2-0x000001F3A8650000-0x000001F3A8672000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads