xworm | 295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528

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/2532-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2532-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2532-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2532-25-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2532-23-0x0000000000400000-0x0000000000410000-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
1952	powershell.exe
2792	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 2404 set thread context of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37

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
2688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1952	powershell.exe
2792	powershell.exe
2532	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	2532	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2532	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 1952	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	31
PID 2404 wrote to memory of 1952	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	31
PID 2404 wrote to memory of 1952	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	31
PID 2404 wrote to memory of 1952	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	31
PID 2404 wrote to memory of 2792	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	33
PID 2404 wrote to memory of 2792	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	33
PID 2404 wrote to memory of 2792	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	33
PID 2404 wrote to memory of 2792	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	33
PID 2404 wrote to memory of 2688	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	35
PID 2404 wrote to memory of 2688	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	35
PID 2404 wrote to memory of 2688	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	35
PID 2404 wrote to memory of 2688	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	35
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37
PID 2404 wrote to memory of 2532	2404	295a1fe5ff733dde577267491fa637a43dfb21930c60e996121eeec21d98d528.exe	37

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:2404
- 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:1952
- 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:2792
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FeAlvpvraR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E70.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2688
- 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:2532

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\tmp2E70.tmp

Filesize
1KB

MD5
6c3f7466046662148f9c551ef88d37a8

SHA1
92de62fc45786ab800932abaec9ccdfbdc8c010f

SHA256
6f5b6d761f028b3259504d14ed1d945daa6732bf960703f682d8db71e402822e

SHA512
8084bdd0ef29b02fe5ee7d861440bb7f3acd22efec6845c8ec3165463365948e2ee55c084c8f7d0076e020ad47fbf59a04efae222fae2791645251250b846248

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\I3V9XKYDY3E7M2JQV1B6.temp

Filesize
7KB

MD5
a0bf84cdd44790eb8ec70e35f48263c9

SHA1
d9f1354d50cb2c618d412913f3be247183e726f3

SHA256
5df03801fcbc04b14c0bedcfbf4da2d371c6be562bdd60c9ad04a1e9ea6e7e83

SHA512
2bfa91d5429f6b86c5068e673c819efc1c027346fbe6a11de0891506feef9fba461d0848cfb2d8c4680888d7fa9c8cd7ff753ef2f2b318cad28969b46d53f586

Download Submit
memory/2404-4-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2404-31-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2404-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/2404-5-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2404-6-0x0000000000630000-0x0000000000682000-memory.dmp

Filesize
328KB

Download
memory/2404-2-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Filesize
6.9MB

Download
memory/2404-1-0x0000000000A20000-0x0000000000AB0000-memory.dmp

Filesize
576KB

Download
memory/2404-3-0x0000000000430000-0x000000000044C000-memory.dmp

Filesize
112KB

Download
memory/2532-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2532-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads