xworm | 2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad

General

Target

2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe
Size

575KB
MD5

cc8b1158ddbeb156968a6110a58e0403
SHA1

8dc4308b025ae703f989030da8b0ae97b2f771c4
SHA256

2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad
SHA512

eb5f2b9361dd319fcaa644035433bfc93b61e18c6b3677f71becea4b7a9bc7651d1fadeafb42845779fd7a6b66833e8684788e14159893c4ca5fe2e2dbf4ef29
SSDEEP

12288:UCQjgAtAHM+vetZxF5EWry8AJGy0wT+t1bsVKoqmqvClWZxk5:U5ZWs+OZVEWry8AFUb2ymqvCiO

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:26998

reports-identifying.gl.at.ply.gg:26998

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023277-6.dat	family_xworm
behavioral2/memory/632-23-0x0000000000DD0000-0x0000000000E0A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Checks computer location settings 2 TTPs 2 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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	loader.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
632	loader.exe
2492	XWormLoader 5.2 x64.exe
5048	System
4728	System

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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System"	loader.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4036	powershell.exe
4036	powershell.exe
936	powershell.exe
936	powershell.exe
3144	powershell.exe
3144	powershell.exe
4860	powershell.exe
4860	powershell.exe
632	loader.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	632	loader.exe
Token: SeDebugPrivilege	4036	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeDebugPrivilege	3144	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	632	loader.exe
Token: SeDebugPrivilege	5048	System
Token: SeDebugPrivilege	4728	System

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
632	loader.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4116 wrote to memory of 632	4116	2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe	85
PID 4116 wrote to memory of 632	4116	2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe	85
PID 4116 wrote to memory of 2492	4116	2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe	87
PID 4116 wrote to memory of 2492	4116	2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe	87
PID 632 wrote to memory of 4036	632	loader.exe	95
PID 632 wrote to memory of 4036	632	loader.exe	95
PID 632 wrote to memory of 936	632	loader.exe	97
PID 632 wrote to memory of 936	632	loader.exe	97
PID 632 wrote to memory of 3144	632	loader.exe	99
PID 632 wrote to memory of 3144	632	loader.exe	99
PID 632 wrote to memory of 4860	632	loader.exe	101
PID 632 wrote to memory of 4860	632	loader.exe	101
PID 632 wrote to memory of 4724	632	loader.exe	103
PID 632 wrote to memory of 4724	632	loader.exe	103

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\2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe
"C:\Users\Admin\AppData\Local\Temp\2b6c7b2d1d3096ba9c01a29d3089a02f5bd3d14bda47d20ef2cc11196f5697ad.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4116
- C:\Users\Admin\AppData\Local\Temp\loader.exe
  "C:\Users\Admin\AppData\Local\Temp\loader.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:632
- - 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\loader.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4036
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'loader.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:936
- - 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'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3144
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4860
- - 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"
    3⤵
    - Creates scheduled task(s)
    PID:4724
- C:\Users\Admin\AppData\Local\Temp\XWormLoader 5.2 x64.exe
  "C:\Users\Admin\AppData\Local\Temp\XWormLoader 5.2 x64.exe"
  2⤵
  - Executes dropped EXE
  PID:2492

C:\Users\Admin\AppData\Roaming\System
C:\Users\Admin\AppData\Roaming\System
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5048

C:\Users\Admin\AppData\Roaming\System
C:\Users\Admin\AppData\Roaming\System
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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.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
71fa55c67a762ba70e40011153e19b3c

SHA1
a36d2bb4802a8ec7db1a68de5f0c3d6007987492

SHA256
b8be6896ca89d3ebe9ee8a94e3407483f4750badaf7fa33526817cfc926dc291

SHA512
32760af7c05e20fec8cbddf56c2df544a69335f930f1d313cd1fdceaa90ed2afe81e54ac1b6770097d6f5ca5f30955f95970171a453579aa19239a17aaefe47f

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

Filesize
944B

MD5
e2da2d9f90026fdcbf934311a18284a2

SHA1
56de674db9fb5e29a62562191b498d976228dfd4

SHA256
199babd6ffc35f86a277f477aa21cc4242a5650779f79c64928eb469c857183e

SHA512
c7ed9f7540a927186f6192c71a18e41d43f87a6b7c578d0bbc63718a9f5ff3e4e597cf4ae18b2cb50ee5730d4360b45994a5931c648291f3250fd0ddfbb70bb3

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

Filesize
944B

MD5
cae60f0ddddac635da71bba775a2c5b4

SHA1
386f1a036af61345a7d303d45f5230e2df817477

SHA256
b2dd636b7b0d3bfe44cef5e1175828b1fa7bd84d5563f54342944156ba996c16

SHA512
28ed8a8bc132ef56971cfd7b517b17cdb74a7f8c247ef6bff232996210075e06aa58a415825a1e038cfb547ad3dc6882bf1ca1b68c5b360ef0512a1440850253

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

Filesize
944B

MD5
037d47adbb4a6287669fec7b7156f670

SHA1
3a662f209e7d1d8b98835cb3e49aefa59d66beb8

SHA256
9ae7b4d6e1c20e1af47b8e4c961d41557a2b02f114b73db1be0cf2ba310f65d0

SHA512
f7fe6556010eb58cd388e1066f63981b2a396b85739f897dfb1fa81f49aeea8d95d3ee012479a39ad27e553d77c7f5cf88adf2640fa3eeebf8e4fc03176665fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\XWormLoader 5.2 x64.exe

Filesize
109KB

MD5
e6a20535b636d6402164a8e2d871ef6d

SHA1
981cb1fd9361ca58f8985104e00132d1836a8736

SHA256
b461c985b53de4f6921d83925b3c2a62de3bbc5b8f9c02eecd27926f0197fae2

SHA512
35856a0268ed9d17b1570d5392833ed168c8515d73fac9f150cf63cc1aea61c096aa2e6b3c8e091a1058ba062f9333f6767e323a37dfb6f4fa7e508a2a138a30

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yoberp02.qb5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\loader.exe

Filesize
209KB

MD5
9258e54f75d5fc605c256842fac605c5

SHA1
2d738fb60c25344bf45c30ca437eb9d14c61c474

SHA256
9fd88792eef0a1607e27217b605c1248c751fa517b3fffaeb5be95ca008120d6

SHA512
70e00740f67378957ed6cb6f9538244c4bdee744ca5f007b0e279833af227f104aedea97d522637a593b36705b674a621ddaf91cf3cd52d200f7de853998bf81

Download Submit
memory/632-93-0x000000001BAB0000-0x000000001BAC0000-memory.dmp

Filesize
64KB

Download
memory/632-24-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/632-95-0x000000001BAB0000-0x000000001BAC0000-memory.dmp

Filesize
64KB

Download
memory/632-94-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/632-23-0x0000000000DD0000-0x0000000000E0A000-memory.dmp

Filesize
232KB

Download
memory/936-51-0x000001FD5FD00000-0x000001FD5FD10000-memory.dmp

Filesize
64KB

Download
memory/936-56-0x000001FD5FD00000-0x000001FD5FD10000-memory.dmp

Filesize
64KB

Download
memory/936-50-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/936-59-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/2492-26-0x0000000000290000-0x00000000002B0000-memory.dmp

Filesize
128KB

Download
memory/2492-28-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/2492-27-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/3144-70-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/3144-71-0x000001B056DD0000-0x000001B056DE0000-memory.dmp

Filesize
64KB

Download
memory/3144-72-0x000001B056DD0000-0x000001B056DE0000-memory.dmp

Filesize
64KB

Download
memory/3144-74-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4036-39-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4036-43-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4036-40-0x000002B230980000-0x000002B230990000-memory.dmp

Filesize
64KB

Download
memory/4036-38-0x000002B2308C0000-0x000002B2308E2000-memory.dmp

Filesize
136KB

Download
memory/4728-104-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4728-105-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4860-86-0x00000185E9830000-0x00000185E9840000-memory.dmp

Filesize
64KB

Download
memory/4860-85-0x00000185E9830000-0x00000185E9840000-memory.dmp

Filesize
64KB

Download
memory/4860-89-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/4860-84-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/5048-98-0x00007FFCD2280000-0x00007FFCD2D41000-memory.dmp

Filesize
10.8MB

Download
memory/5048-100-0x00007FFCD2280000-0x00007FFCD2D41000-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