xworm | afb3da161810177f73bca2a65f80c1b7f55e78bc436b9bd39b7068039b16ae10

General

Target

ohwowanigger.exe
Size

70KB
MD5

3461e8efc569040d75683831060326b5
SHA1

3b0bc2edd86f70506320dccc5b885dd01c0964c4
SHA256

afb3da161810177f73bca2a65f80c1b7f55e78bc436b9bd39b7068039b16ae10
SHA512

49042f51a7b7c1ad150f3a30d176bba7dc5a0ea696ca762d29fb2724121c9c1e86ccdad4d5c1e618ad33bb43684991c5558a3eb0c9d77717fd9771ac1b97f29f
SSDEEP

1536:J9+NvlbSaw4xra1lZbKG4kw0VKConuiGy6Y9MmOWN4ln5m:j+FcyxrEZbKG4kF+nhOJXm

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

192.168.1.47:8000

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/1372-1-0x0000000000F90000-0x0000000000FA8000-memory.dmp	family_xworm
behavioral1/files/0x000c000000023364-49.dat	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3280	powershell.exe
1012	powershell.exe
4252	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	ohwowanigger.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
1704	ohwowanigger.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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ohwowanigger = "C:\\Users\\Admin\\AppData\\Roaming\\ohwowanigger.exe"	ohwowanigger.exe

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
1940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3280	powershell.exe
3280	powershell.exe
1012	powershell.exe
1012	powershell.exe
4252	powershell.exe
4252	powershell.exe
4252	powershell.exe
1372	ohwowanigger.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1372	ohwowanigger.exe
Token: SeDebugPrivilege	3280	powershell.exe
Token: SeDebugPrivilege	1012	powershell.exe
Token: SeDebugPrivilege	4252	powershell.exe
Token: SeDebugPrivilege	1372	ohwowanigger.exe
Token: SeDebugPrivilege	1704	ohwowanigger.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1372	ohwowanigger.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 3280	1372	ohwowanigger.exe	88
PID 1372 wrote to memory of 3280	1372	ohwowanigger.exe	88
PID 1372 wrote to memory of 1012	1372	ohwowanigger.exe	92
PID 1372 wrote to memory of 1012	1372	ohwowanigger.exe	92
PID 1372 wrote to memory of 4252	1372	ohwowanigger.exe	95
PID 1372 wrote to memory of 4252	1372	ohwowanigger.exe	95
PID 1372 wrote to memory of 1940	1372	ohwowanigger.exe	98
PID 1372 wrote to memory of 1940	1372	ohwowanigger.exe	98

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\ohwowanigger.exe
"C:\Users\Admin\AppData\Local\Temp\ohwowanigger.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:1372
- 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\ohwowanigger.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3280
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ohwowanigger.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1012
- 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\ohwowanigger.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4252
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "ohwowanigger" /tr "C:\Users\Admin\AppData\Roaming\ohwowanigger.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1940

C:\Users\Admin\AppData\Roaming\ohwowanigger.exe
C:\Users\Admin\AppData\Roaming\ohwowanigger.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1704

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\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
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xvnudvje.p1f.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
70KB

MD5
3461e8efc569040d75683831060326b5

SHA1
3b0bc2edd86f70506320dccc5b885dd01c0964c4

SHA256
afb3da161810177f73bca2a65f80c1b7f55e78bc436b9bd39b7068039b16ae10

SHA512
49042f51a7b7c1ad150f3a30d176bba7dc5a0ea696ca762d29fb2724121c9c1e86ccdad4d5c1e618ad33bb43684991c5558a3eb0c9d77717fd9771ac1b97f29f

Download Submit
memory/1012-31-0x0000017CB2BD0000-0x0000017CB2DEC000-memory.dmp

Filesize
2.1MB

Download
memory/1372-1-0x0000000000F90000-0x0000000000FA8000-memory.dmp

Filesize
96KB

Download
memory/1372-53-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/1372-0-0x00007FFBC4BD3000-0x00007FFBC4BD5000-memory.dmp

Filesize
8KB

Download
memory/1372-52-0x00007FFBC4BD3000-0x00007FFBC4BD5000-memory.dmp

Filesize
8KB

Download
memory/1372-51-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/3280-12-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/3280-18-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/3280-17-0x000002437BE40000-0x000002437C05C000-memory.dmp

Filesize
2.1MB

Download
memory/3280-14-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/3280-13-0x00007FFBC4BD0000-0x00007FFBC5691000-memory.dmp

Filesize
10.8MB

Download
memory/3280-11-0x000002437C190000-0x000002437C1B2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads