xworm | 3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7

General

Target

3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe
Size

237KB
MD5

ac4ef9a196e1fcbf046a1f357d1240a2
SHA1

ab74bd5ef75aea3153da22dda211e08eb0a30c8b
SHA256

3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7
SHA512

5c79ed5aad2ca76b1faab75f125d79b46db73ae78b76951d5edd199e3e1d874cdcc1e79e7f70aff362e6cea0b4561a9998daf8db7acb0ec921148a7790747369
SSDEEP

3072:Uy+Geu6jTFr99QO/s3zLLAsNeDF5nI0PGIj9lua/Obw0hFv2PCWpIdk:UvPr9uzL0sNOBTunbw0/5Wp

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

enter-sierra.gl.at.ply.gg:55389

Mutex

lzS6Ul7Mo5UcN6CR

Attributes

Install_directory
%AppData%
install_file
Wave.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2592-1-0x00000000009B0000-0x00000000009F2000-memory.dmp	family_xworm
behavioral2/files/0x000f00000001e560-59.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
760	powershell.exe
1604	powershell.exe
2008	powershell.exe
4952	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Wave.lnk	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Wave.lnk	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe

Executes dropped EXE 2 IoCs

pid	Process
2208	Wave.exe
3756	Wave.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wave = "C:\\Users\\Admin\\AppData\\Roaming\\Wave.exe"	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.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
1360	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
760	powershell.exe
760	powershell.exe
1604	powershell.exe
1604	powershell.exe
2008	powershell.exe
2008	powershell.exe
4952	powershell.exe
4952	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe
Token: SeDebugPrivilege	760	powershell.exe
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	2008	powershell.exe
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeDebugPrivilege	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe
Token: SeDebugPrivilege	2208	Wave.exe
Token: SeDebugPrivilege	3756	Wave.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 760	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	88
PID 2592 wrote to memory of 760	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	88
PID 2592 wrote to memory of 1604	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	93
PID 2592 wrote to memory of 1604	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	93
PID 2592 wrote to memory of 2008	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	96
PID 2592 wrote to memory of 2008	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	96
PID 2592 wrote to memory of 4952	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	98
PID 2592 wrote to memory of 4952	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	98
PID 2592 wrote to memory of 1360	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	100
PID 2592 wrote to memory of 1360	2592	3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe	100

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\3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe
"C:\Users\Admin\AppData\Local\Temp\3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592
- 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\3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:760
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1604
- 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\Wave.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2008
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Wave.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4952
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Wave" /tr "C:\Users\Admin\AppData\Roaming\Wave.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1360

C:\Users\Admin\AppData\Roaming\Wave.exe
C:\Users\Admin\AppData\Roaming\Wave.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2208

C:\Users\Admin\AppData\Roaming\Wave.exe
C:\Users\Admin\AppData\Roaming\Wave.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3756

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\Wave.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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
4fc1ceefa94c82f73b7ee478e2920ea3

SHA1
17a031c8d10e316478d85d24ba8a8b5ebfda3149

SHA256
018553e7801fd476285775a4df59eb6a6c79774f6253d6dcbe9e4e96de3c96fb

SHA512
cd581f4b96e1eff3e1c8e75e9e67050060f9bdc92c2a4a0ca8282b4b1839fde9f7848cc262b8ef189466bdd51c0940be7392ae7f0278b2113d10ed590d11b311

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

Filesize
944B

MD5
e60eb305a7b2d9907488068b7065abd3

SHA1
1643dd7f915ac50c75bc01c53d68c5dafb9ce28d

SHA256
ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135

SHA512
95c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fge00yuj.vvm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
237KB

MD5
ac4ef9a196e1fcbf046a1f357d1240a2

SHA1
ab74bd5ef75aea3153da22dda211e08eb0a30c8b

SHA256
3f3d33237e56d547df335c22816af3cde586a66e234e2ea6ea9ab5f90cb4b0a7

SHA512
5c79ed5aad2ca76b1faab75f125d79b46db73ae78b76951d5edd199e3e1d874cdcc1e79e7f70aff362e6cea0b4561a9998daf8db7acb0ec921148a7790747369

Download Submit
memory/760-12-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/760-17-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/760-14-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/760-13-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/760-2-0x00000107733B0000-0x00000107733D2000-memory.dmp

Filesize
136KB

Download
memory/2592-0-0x00007FF8AC373000-0x00007FF8AC375000-memory.dmp

Filesize
8KB

Download
memory/2592-56-0x00007FF8AC373000-0x00007FF8AC375000-memory.dmp

Filesize
8KB

Download
memory/2592-57-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/2592-58-0x00007FF8AC370000-0x00007FF8ACE31000-memory.dmp

Filesize
10.8MB

Download
memory/2592-1-0x00000000009B0000-0x00000000009F2000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads