xworm | a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f

General

Target

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Size

75KB
MD5

2fbece266a952df408602eb9cbedad0f
SHA1

f307c496bb6fd8531584c19474ef6de1775ba744
SHA256

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f
SHA512

15edd9bd37ce9179701758eb1a49dbffd4a101b3b33aa21e757c4a1117772170c0ff3e8355a798f605c763affd2be664bd71c75eb71265c320dcbe3339850c16
SSDEEP

1536:WQvlvzEfcn5PF6vWs6aq69eq9bC29104DTcp7i600xPCOMQln84lO:WovIfk6OYRbCaSacl4OMulO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

25.ip.gl.ply.gg:8258

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4772-1-0x0000000000070000-0x000000000008A000-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
4744	powershell.exe
4196	powershell.exe
1588	powershell.exe
2360	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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
14	ip-api.com

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
4744	powershell.exe
4744	powershell.exe
4196	powershell.exe
4196	powershell.exe
1588	powershell.exe
1588	powershell.exe
2360	powershell.exe
2360	powershell.exe
4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Token: SeDebugPrivilege	4744	powershell.exe
Token: SeDebugPrivilege	4196	powershell.exe
Token: SeDebugPrivilege	1588	powershell.exe
Token: SeDebugPrivilege	2360	powershell.exe
Token: SeDebugPrivilege	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 4744	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	87
PID 4772 wrote to memory of 4744	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	87
PID 4772 wrote to memory of 4196	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	89
PID 4772 wrote to memory of 4196	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	89
PID 4772 wrote to memory of 1588	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	91
PID 4772 wrote to memory of 1588	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	91
PID 4772 wrote to memory of 2360	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	93
PID 4772 wrote to memory of 2360	4772	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	93

C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
"C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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:4772
- 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\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4744
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4196
- 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:1588
- 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:2360

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
272dc716c99407615cc54be63824cd1e

SHA1
6aeeeee0a254473427af394b161c1020cf74ec0a

SHA256
0e772f1d15426881d1c79b319c8d52919383d1c1b861d1893a94c0e8bd472f06

SHA512
5a32034ea515f358ef4ec2e2f198fdc0dd0c5900645c4a8e8e1da7922ee19836d735ee726ce7d60b3015ab7abc10ebec2602fec24dca4f4e0798db2a7bf5aaf2

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\Temp\__PSScriptPolicyTest_hy021s2f.14h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4744-3-0x0000028875570000-0x0000028875592000-memory.dmp

Filesize
136KB

Download
memory/4744-14-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/4744-15-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/4744-18-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/4744-4-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/4772-0-0x00007FFB89CE3000-0x00007FFB89CE5000-memory.dmp

Filesize
8KB

Download
memory/4772-2-0x00007FFB89CE0000-0x00007FFB8A7A1000-memory.dmp

Filesize
10.8MB

Download
memory/4772-1-0x0000000000070000-0x000000000008A000-memory.dmp

Filesize
104KB

Download
memory/4772-57-0x00007FFB89CE0000-0x00007FFB8A7A1000-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