xworm | 59129c41eeabcc689986b80f9e4f6334a72b6557b0d56d0d185f803e26f4b6c4

General

Target

295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe
Size

564KB
MD5

066ea1397f09fed558600e6c4bc7c1e4
SHA1

059f84529641a772f564f0afa890fd4260ec3a06
SHA256

295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528
SHA512

d9a494a860ab21f59b405c48343a805f792ed14a9b915decdad3295779f7fb31ab84812a71c99d66838c8c82b37e826f2d66ed9dbfedac0b895e06c9eb8f7fdd
SSDEEP

12288:4oSoGX2ry3mFpqjgS+CLuE0Fq7qUckNxxA7WkR:RSoGmr8mFpq8SjLuS7qjkNK

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

SF5USQEmssTrQl4w

Attributes

install_file
USB.exe
pastebin_url
https://pastebin.com/raw/4iZFGLTi

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2964-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2964-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2964-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2964-25-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2964-23-0x0000000000400000-0x0000000000410000-memory.dmp	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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2892	powershell.exe
2524	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

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
2632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2892	powershell.exe
2524	powershell.exe
2964	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	2524	powershell.exe
Token: SeDebugPrivilege	2964	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2964	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2892	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	30
PID 2708 wrote to memory of 2892	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	30
PID 2708 wrote to memory of 2892	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	30
PID 2708 wrote to memory of 2892	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	30
PID 2708 wrote to memory of 2524	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	32
PID 2708 wrote to memory of 2524	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	32
PID 2708 wrote to memory of 2524	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	32
PID 2708 wrote to memory of 2524	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	32
PID 2708 wrote to memory of 2632	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	34
PID 2708 wrote to memory of 2632	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	34
PID 2708 wrote to memory of 2632	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	34
PID 2708 wrote to memory of 2632	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	34
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36
PID 2708 wrote to memory of 2964	2708	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	36

C:\Users\Admin\AppData\Local\Temp\295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe
"C:\Users\Admin\AppData\Local\Temp\295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2892
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FeAlvpvraR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2524
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FeAlvpvraR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp86AD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe
  "C:\Users\Admin\AppData\Local\Temp\295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2964

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp86AD.tmp

Filesize
1KB

MD5
f4aced8ee16668d45e70a39b5ecd314d

SHA1
46af99a5bbdc841fd2d2c5ce33004506e5919115

SHA256
590c3bd58192fb341f3afa19b90df79826e82f69d05332cf31ba635ba5531c6b

SHA512
6123ed70d1772ff66110df19ca83412d6f1ec0a4033349a1115d988915cbea99f10b4f8c2c08df2e233f69f0132379485d38f339eea78f69dbd4d42de5c77f05

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\4QBL6OIAMUS4E2SHI5HE.temp

Filesize
7KB

MD5
7732eb0c8ea8b81598e7c9ffa95f00da

SHA1
6b185ec9d6d3823254ff3e7608353541ad85b8b2

SHA256
789ddabc9ffbc43f7ec8eb36f31c2d200c943383630b35eb0bef294155ed08f5

SHA512
0a2f981882052778c592672988263e34d5d1db3ba064290fc052a2420be4cd2325f7a275dcffa1c9f01217082cb7680cb23f1cf691103eaa956613b9e7485aa6

Download Submit
memory/2708-4-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2708-31-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-0-0x0000000074C5E000-0x0000000074C5F000-memory.dmp

Filesize
4KB

Download
memory/2708-5-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-6-0x00000000008E0000-0x0000000000932000-memory.dmp

Filesize
328KB

Download
memory/2708-2-0x0000000074C50000-0x000000007533E000-memory.dmp

Filesize
6.9MB

Download
memory/2708-1-0x0000000000A10000-0x0000000000AA0000-memory.dmp

Filesize
576KB

Download
memory/2708-3-0x00000000003B0000-0x00000000003CC000-memory.dmp

Filesize
112KB

Download
memory/2964-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2964-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2964-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads