xworm | e46d80f1b4a81c1aaafdda010b0db0eca9c0957a1a3990671d583247d33371ff

General

Target

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
Size

34KB
MD5

b1277c96cd2cabd50382318e95179713
SHA1

5da077cec493cfee0d9ec1905d9882efa8a8d284
SHA256

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11
SHA512

4d28ed36ce3d3bbc6d96e4ed76e95604edd10a2eabf60001dcaf611269358e70bebe71a6d2ebfa2a747c3e2feac9e8f3c2f913b3fabdaab2b327c4f46bafd36e
SSDEEP

768:/pabA1ZUxNkLACVVickNVFy19JR6aO/hnt:fn2Nk8hcAF49JR6aO/v

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

dzn.ddns.net:5552

Mutex

mT1l25650AkcpwGy

Attributes

Install_directory
%Temp%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4148-0-0x0000000000310000-0x000000000031E000-memory.dmp	family_xworm

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

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

Processes:

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

Drops startup file 2 IoCs

Processes:

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.lnk	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.lnk	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe"	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.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

Processes:

schtasks.exe

pid process

2592 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

1664 powershell.exe
1664 powershell.exe
1408 powershell.exe
1408 powershell.exe
2740 powershell.exe
2740 powershell.exe

pid	process
2592	schtasks.exe

pid	process
1664	powershell.exe
1664	powershell.exe
1408	powershell.exe
1408	powershell.exe
2740	powershell.exe
2740	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exepowershell.exepowershell.exepowershell.exefe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exefe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

description	pid	process
Token: SeDebugPrivilege	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
Token: SeDebugPrivilege	1664	powershell.exe
Token: SeDebugPrivilege	1408	powershell.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
Token: SeDebugPrivilege	3924	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
Token: SeDebugPrivilege	3628	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe

description	pid	process	target process
PID 4148 wrote to memory of 1664	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 1664	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 1408	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 1408	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 2740	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 2740	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	powershell.exe
PID 4148 wrote to memory of 2592	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	schtasks.exe
PID 4148 wrote to memory of 2592	4148	fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe	schtasks.exe

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\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
"C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4148

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\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1664

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1408

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\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2740

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11" /tr "C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe"
2⤵
- Creates scheduled task(s)
PID:2592

C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3924

C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
C:\Users\Admin\AppData\Local\Temp\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3628

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\fe8b320087553eaee75439ab0c4c523a67687c5cb70763bcf042bcfabb205f11.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
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
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1xih33ke.jxu.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1408-28-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/1408-33-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/1408-30-0x0000021B989B0000-0x0000021B989C0000-memory.dmp

Filesize
64KB

Download
memory/1408-29-0x0000021B989B0000-0x0000021B989C0000-memory.dmp

Filesize
64KB

Download
memory/1664-14-0x000001A6374B0000-0x000001A6374D2000-memory.dmp

Filesize
136KB

Download
memory/1664-2-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/1664-17-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/1664-8-0x000001A635190000-0x000001A6351A0000-memory.dmp

Filesize
64KB

Download
memory/1664-13-0x000001A635190000-0x000001A6351A0000-memory.dmp

Filesize
64KB

Download
memory/2740-48-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/2740-45-0x0000013551B70000-0x0000013551B80000-memory.dmp

Filesize
64KB

Download
memory/2740-44-0x0000013551B70000-0x0000013551B80000-memory.dmp

Filesize
64KB

Download
memory/2740-43-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/3628-58-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/3628-59-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/3924-53-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/3924-55-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/4148-0-0x0000000000310000-0x000000000031E000-memory.dmp

Filesize
56KB

Download
memory/4148-50-0x000000001B1E0000-0x000000001B1F0000-memory.dmp

Filesize
64KB

Download
memory/4148-51-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download
memory/4148-52-0x000000001B1E0000-0x000000001B1F0000-memory.dmp

Filesize
64KB

Download
memory/4148-1-0x00007FFCDB3E0000-0x00007FFCDBEA1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads