xworm | ec1684dc17f4518c984b32b42433db09eb8a9d3d38040ce1467f3d7d6d25606d

General

Target

39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
Size

501KB
MD5

6b34408cb796d4e16a6caa577ebce6b9
SHA1

f011ab355ac5a00204c033f3ac73848f6ce4c0ee
SHA256

39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a
SHA512

344defa68966df547a0504ee221a2037f737d469e0c496009209f9334589f0f73ac69226bb74ea60eb116332ccaefa0d5c1f8972a5b9d34628d9bfcc4147ea84
SSDEEP

12288:E2iNErX80k+laBnUISbE0u9QgYZoXONvIGc2:E1ij8v+MKjbE0ul+Nx

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

91.92.120.13:7099

Mutex

ZCamGCh7lBqmpyCR

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2520-31-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2520-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2520-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2520-26-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2520-24-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
2704	powershell.exe
2708	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2320 set thread context of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2648	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
2708	powershell.exe
2704	powershell.exe
2520	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeDebugPrivilege	2708	powershell.exe
Token: SeDebugPrivilege	2520	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2520	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2704	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	30
PID 2320 wrote to memory of 2704	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	30
PID 2320 wrote to memory of 2704	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	30
PID 2320 wrote to memory of 2704	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	30
PID 2320 wrote to memory of 2708	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	32
PID 2320 wrote to memory of 2708	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	32
PID 2320 wrote to memory of 2708	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	32
PID 2320 wrote to memory of 2708	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	32
PID 2320 wrote to memory of 2648	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	34
PID 2320 wrote to memory of 2648	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	34
PID 2320 wrote to memory of 2648	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	34
PID 2320 wrote to memory of 2648	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	34
PID 2320 wrote to memory of 2688	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	36
PID 2320 wrote to memory of 2688	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	36
PID 2320 wrote to memory of 2688	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	36
PID 2320 wrote to memory of 2688	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	36
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37
PID 2320 wrote to memory of 2520	2320	39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe	37

C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
"C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2320
- 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\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DTEmeRxUBaLqyA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2708
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DTEmeRxUBaLqyA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E4F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2648
- C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
  "C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
  2⤵
  PID:2688
- C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe
  "C:\Users\Admin\AppData\Local\Temp\39962cdef1efccb262b01e3bc41e4380ed1f925885f1a22178e505f5c440887a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2520

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4E4F.tmp

Filesize
1KB

MD5
73dc92d50cc9d6197d98c5d9d4c10b3e

SHA1
b8d1bcf2a8cdc92979c8dcfef4bb8a49def6b80b

SHA256
69e8ac8e030c8f21bd4905aacaf771693216e47b99d1fe376ddf782030f25887

SHA512
27815467f86e5bfec09a9828ef524342dc1e82062d53b1883b11fa83a9509d783d76baabf1539b6bb35454481fd276b3bf3197f1dd5fcd87e0bcf294a1a2a7f1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\1ACCBDXARJ2L7VT9V3F6.temp

Filesize
7KB

MD5
7a397d03ce637fb093edb375c031b4d6

SHA1
97b8693a11770611e46dbf7215affd2c7d70eba8

SHA256
bdc065235cee4c2fa4138c14a227f5bada2d49706d8f45a99f4f2c055f4d99a5

SHA512
df9e571f3a9633ec0dd9ca06fd6d9d5fa58e2a5ce95328e7a0da6f8e03a4c1042dd66fc0aac3e8c521a22630ff61566ae7d8ebb1bdda8587b4ccb4dd1afd2295

Download Submit
memory/2320-4-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/2320-3-0x00000000005D0000-0x00000000005EA000-memory.dmp

Filesize
104KB

Download
memory/2320-0-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/2320-5-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2320-6-0x0000000000430000-0x0000000000440000-memory.dmp

Filesize
64KB

Download
memory/2320-7-0x00000000049D0000-0x0000000004A20000-memory.dmp

Filesize
320KB

Download
memory/2320-2-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2320-1-0x00000000000C0000-0x0000000000144000-memory.dmp

Filesize
528KB

Download
memory/2320-32-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2520-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2520-26-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-24-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-22-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-20-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2520-31-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads