xworm | 08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348

General

Target

08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe
Size

83KB
MD5

36939c097b21a057cd3cf29bd7d2e24c
SHA1

2d120533e21e0f4a5154deb56d552613c51e5a78
SHA256

08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348
SHA512

77e477f3cf131949f028e18ed6fe4903cd744ca47250e4728faa2b29ba9afa2259be6cbf29ffea9cdd7be13966b58faa47c4408e11048a9bc9ef88c1ef7a0522
SSDEEP

1536:KOItpoEucVEhr9AOlcQQn8YTlbrfikUSNG6eqhyOXcY1VA38:TBEfefAOlHQ8YTlbrfi7SN2qYOXcYM38

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

primary-organizing.gl.at.ply.gg:16003

Attributes

Install_directory
%AppData%
install_file
System.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2740-1-0x00000000008D0000-0x00000000008EC000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023c9d-59.dat	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
2900	powershell.exe
808	powershell.exe
1312	powershell.exe
4536	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	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe

Executes dropped EXE 2 IoCs

pid	Process
4316	System.exe
4080	System.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System.exe"	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.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
15	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
64	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2900	powershell.exe
2900	powershell.exe
808	powershell.exe
808	powershell.exe
1312	powershell.exe
1312	powershell.exe
4536	powershell.exe
4536	powershell.exe
2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe
Token: SeDebugPrivilege	2900	powershell.exe
Token: SeDebugPrivilege	808	powershell.exe
Token: SeDebugPrivilege	1312	powershell.exe
Token: SeDebugPrivilege	4536	powershell.exe
Token: SeDebugPrivilege	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe
Token: SeDebugPrivilege	4316	System.exe
Token: SeDebugPrivilege	4080	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 2900	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	87
PID 2740 wrote to memory of 2900	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	87
PID 2740 wrote to memory of 808	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	89
PID 2740 wrote to memory of 808	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	89
PID 2740 wrote to memory of 1312	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	93
PID 2740 wrote to memory of 1312	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	93
PID 2740 wrote to memory of 4536	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	95
PID 2740 wrote to memory of 4536	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	95
PID 2740 wrote to memory of 64	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	99
PID 2740 wrote to memory of 64	2740	08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe	99

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\08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe
"C:\Users\Admin\AppData\Local\Temp\08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.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:2740
- 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\08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348.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\System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4536
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:64

C:\Users\Admin\AppData\Roaming\System.exe
C:\Users\Admin\AppData\Roaming\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4316

C:\Users\Admin\AppData\Roaming\System.exe
C:\Users\Admin\AppData\Roaming\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4080

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\System.exe.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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
fd98baf5a9c30d41317663898985593b

SHA1
ea300b99f723d2429d75a6c40e0838bf60f17aad

SHA256
9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

SHA512
bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

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

Filesize
944B

MD5
f41f42c322498af0591f396c59dd4304

SHA1
e1e5aa68d73d48bc5e743a34f6c0fa8960ff7514

SHA256
d8bd9a4a363ff2ac2dc887759ec6ba4215a4ce0925a8fb9c531573458ee4a31c

SHA512
2328a1b402b4fb0de9c451fb630eab58549129d3bcfb70b9834cfbd16065ebaadec006b309ea17ac182d34c53e01705cbc9e0196eb0cbd62600c866e79a1844f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_brwds5sq.4ok.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\System.exe

Filesize
83KB

MD5
36939c097b21a057cd3cf29bd7d2e24c

SHA1
2d120533e21e0f4a5154deb56d552613c51e5a78

SHA256
08aaaa2767a0a4fd7eced1d065b7be7c0c67692b62b44bf4c69bf43bdbb9a348

SHA512
77e477f3cf131949f028e18ed6fe4903cd744ca47250e4728faa2b29ba9afa2259be6cbf29ffea9cdd7be13966b58faa47c4408e11048a9bc9ef88c1ef7a0522

Download Submit
memory/2740-1-0x00000000008D0000-0x00000000008EC000-memory.dmp

Filesize
112KB

Download
memory/2740-2-0x00007FFF28EB0000-0x00007FFF29971000-memory.dmp

Filesize
10.8MB

Download
memory/2740-0-0x00007FFF28EB3000-0x00007FFF28EB5000-memory.dmp

Filesize
8KB

Download
memory/2740-58-0x00007FFF28EB0000-0x00007FFF29971000-memory.dmp

Filesize
10.8MB

Download
memory/2740-52-0x00007FFF28EB3000-0x00007FFF28EB5000-memory.dmp

Filesize
8KB

Download
memory/2900-4-0x00007FFF28EB0000-0x00007FFF29971000-memory.dmp

Filesize
10.8MB

Download
memory/2900-18-0x00007FFF28EB0000-0x00007FFF29971000-memory.dmp

Filesize
10.8MB

Download
memory/2900-11-0x000001AD3F8F0000-0x000001AD3F912000-memory.dmp

Filesize
136KB

Download
memory/2900-5-0x00007FFF28EB0000-0x00007FFF29971000-memory.dmp

Filesize
10.8MB

Download
memory/2900-3-0x00007FFF28EB0000-0x00007FFF29971000-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