xworm | 13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11

General

Target

13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe
Size

64KB
MD5

0893b12cf7899e969bc6d094f13395c0
SHA1

0fb0e47ae981a3fcb02a0f0c366f1754e9f05ff8
SHA256

13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11
SHA512

891edbc54976cadcdcdccd586be39e36fc297adf5b56fc09602d99700c45a01ceec363b6f2301100880666c682eb342bf48b5f0c33bc7004572be5a52aef447a
SSDEEP

1536:+EVRBKXfmrbLO+BBUsbJU5fRqw6LCLOO4wH:RVRwunLbHbJUNYoOOrH

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

disclaimer-hose.gl.at.ply.gg:11906

Attributes

Install_directory
%Userprofile%
install_file
Microsoft Edge.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/392-1-0x0000000000A20000-0x0000000000A36000-memory.dmp	family_xworm
behavioral2/files/0x000c000000023c72-58.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
2028	powershell.exe
2792	powershell.exe
3204	powershell.exe
5096	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	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.lnk	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Edge.lnk	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe

Executes dropped EXE 2 IoCs

pid	Process
1376	Microsoft Edge.exe
3340	Microsoft Edge.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\Microsoft Edge = "C:\\Users\\Admin\\Microsoft Edge.exe"	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.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

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
1800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2028	powershell.exe
2028	powershell.exe
2792	powershell.exe
2792	powershell.exe
3204	powershell.exe
3204	powershell.exe
5096	powershell.exe
5096	powershell.exe
392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	3204	powershell.exe
Token: SeDebugPrivilege	5096	powershell.exe
Token: SeDebugPrivilege	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe
Token: SeDebugPrivilege	1376	Microsoft Edge.exe
Token: SeDebugPrivilege	3340	Microsoft Edge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 392 wrote to memory of 2028	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	87
PID 392 wrote to memory of 2028	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	87
PID 392 wrote to memory of 2792	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	89
PID 392 wrote to memory of 2792	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	89
PID 392 wrote to memory of 3204	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	91
PID 392 wrote to memory of 3204	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	91
PID 392 wrote to memory of 5096	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	93
PID 392 wrote to memory of 5096	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	93
PID 392 wrote to memory of 1800	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	95
PID 392 wrote to memory of 1800	392	13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe	95

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\13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe
"C:\Users\Admin\AppData\Local\Temp\13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.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:392
- 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\13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2028
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2792
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\Microsoft Edge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3204
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Microsoft Edge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5096
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Microsoft Edge" /tr "C:\Users\Admin\Microsoft Edge.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1800

C:\Users\Admin\Microsoft Edge.exe
"C:\Users\Admin\Microsoft Edge.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1376

C:\Users\Admin\Microsoft Edge.exe
"C:\Users\Admin\Microsoft Edge.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3340

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\Microsoft Edge.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
6c47b3f4e68eebd47e9332eebfd2dd4e

SHA1
67f0b143336d7db7b281ed3de5e877fa87261834

SHA256
8c48b1f2338e5b24094821f41121d2221f1cb3200338f46df49f64d1c4bc3e0c

SHA512
0acf302a9fc971ef9df65ed42c47ea17828e54dff685f4434f360556fd27cdc26a75069f00dcdc14ba174893c6fd7a2cfd8c6c07be3ce35dafee0a006914eaca

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

Filesize
944B

MD5
53b097b8beec621cba9eb3ae650f7c34

SHA1
8bdf179119d0d1da07bae75d7b8c3ea494d4020f

SHA256
43df638d38a3487d9908f92bc12ba836ce933cdea5b4aa5fe4d276b03c1a6fe6

SHA512
e9cf91d94322afa20404a5aa62b66935d8f82a1f90e19ab563a836e195a0e496dc494d2320c91d8554bc0df0d8046ec873b2dedba365c52e9009e51f772015dd

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

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z2ivcxft.dup.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\Microsoft Edge.exe

Filesize
64KB

MD5
0893b12cf7899e969bc6d094f13395c0

SHA1
0fb0e47ae981a3fcb02a0f0c366f1754e9f05ff8

SHA256
13cbc690202bd7f229b813662711205361e63409057d5756859d560026698d11

SHA512
891edbc54976cadcdcdccd586be39e36fc297adf5b56fc09602d99700c45a01ceec363b6f2301100880666c682eb342bf48b5f0c33bc7004572be5a52aef447a

Download Submit
memory/392-1-0x0000000000A20000-0x0000000000A36000-memory.dmp

Filesize
88KB

Download
memory/392-2-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/392-0-0x00007FFEAFD03000-0x00007FFEAFD05000-memory.dmp

Filesize
8KB

Download
memory/392-57-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2028-14-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2028-18-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2028-15-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp

Filesize
10.8MB

Download
memory/2028-10-0x0000024264860000-0x0000024264882000-memory.dmp

Filesize
136KB

Download
memory/2028-3-0x00007FFEAFD00000-0x00007FFEB07C1000-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