xworm | fea9620c907c32bef37b6e5a08699eae88ecc0ee014e52495a39a46312d4766f

Analysis

max time kernel
31s
max time network
32s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2025 19:54

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General

Target

loader.exe
Size

2.6MB
MD5

2b45969ccbd973f5bc6a10716093e00b
SHA1

596467ce3d6a3a3a80abaca3b8df30a52c95ccab
SHA256

fea9620c907c32bef37b6e5a08699eae88ecc0ee014e52495a39a46312d4766f
SHA512

b985d5a73027e07519d8f180b6b87e1b95f6a5185dc279db783f3c6f5e788b0bb9279f74bd4bb1a52fb766970d34a0e2a3a67446fd825f70d68981ef77264578
SSDEEP

49152:Uhsk/i2lNbPzoc9MmJdW8zo7UqT31p+/JLD9bC8N1FIZfIUzon0KW6My0+:gni2lRoNYo7DT3m/JL5bCCEbo0KW6

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

185.94.29.228:4444

Attributes

Install_directory
%Temp%
install_file
Spotify.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b7f-6.dat	family_xworm
behavioral2/memory/5048-15-0x0000000000E00000-0x0000000000E16000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4220	powershell.exe
4512	powershell.exe
4372	powershell.exe
2320	powershell.exe

Checks computer location settings 2 TTPs 2 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	loader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	spotify.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
5048	spotify.exe
4796	loaderr.exe
544	loaderr.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4796	loaderr.exe
4796	loaderr.exe
4220	powershell.exe
4220	powershell.exe
4512	powershell.exe
4512	powershell.exe
4372	powershell.exe
4372	powershell.exe
2320	powershell.exe
2320	powershell.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
5048	spotify.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe
544	loaderr.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5048	spotify.exe
Token: SeDebugPrivilege	4220	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	4372	powershell.exe
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	5048	spotify.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5048	spotify.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 5048	1928	loader.exe	83
PID 1928 wrote to memory of 5048	1928	loader.exe	83
PID 1928 wrote to memory of 4796	1928	loader.exe	84
PID 1928 wrote to memory of 4796	1928	loader.exe	84
PID 4796 wrote to memory of 544	4796	loaderr.exe	85
PID 4796 wrote to memory of 544	4796	loaderr.exe	85
PID 544 wrote to memory of 4024	544	loaderr.exe	87
PID 544 wrote to memory of 4024	544	loaderr.exe	87
PID 5048 wrote to memory of 4220	5048	spotify.exe	89
PID 5048 wrote to memory of 4220	5048	spotify.exe	89
PID 5048 wrote to memory of 4512	5048	spotify.exe	91
PID 5048 wrote to memory of 4512	5048	spotify.exe	91
PID 5048 wrote to memory of 4372	5048	spotify.exe	93
PID 5048 wrote to memory of 4372	5048	spotify.exe	93
PID 5048 wrote to memory of 2320	5048	spotify.exe	95
PID 5048 wrote to memory of 2320	5048	spotify.exe	95
PID 544 wrote to memory of 2228	544	loaderr.exe	109
PID 544 wrote to memory of 2228	544	loaderr.exe	109
PID 544 wrote to memory of 3660	544	loaderr.exe	110
PID 544 wrote to memory of 3660	544	loaderr.exe	110

C:\Users\Admin\AppData\Local\Temp\loader.exe
"C:\Users\Admin\AppData\Local\Temp\loader.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Public\spotify.exe
  "C:\Users\Public\spotify.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5048
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\spotify.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4220
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'spotify.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4512
- - 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\Spotify.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4372
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Spotify.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2320
- C:\Users\Public\loaderr.exe
  "C:\Users\Public\loaderr.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Users\Public\loaderr.exe
    "C:\Users\Public\loaderr.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:544
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      4⤵
      PID:4024
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      4⤵
      PID:2228
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      4⤵
      PID:3660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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
dd1d0b083fedf44b482a028fb70b96e8

SHA1
dc9c027937c9f6d52268a1504cbae42a39c8d36a

SHA256
cab7944d29e0501dc0db904ac460ca7a87700e0ec7eb62298b7b97cbf40c424c

SHA512
96bec38bfda176292ae65dcf735103e7888baa212038737c1d1e215fcb76e4c0355e4a827a1934303e7aecae91012fa412f13e38f382b732758bae985cc67973

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

Filesize
944B

MD5
6d14ccefeb263594e60b1765e131f7a3

SHA1
4a9ebdc0dff58645406c40b7b140e1b174756721

SHA256
57cd435c8b2bf10a2c77698301789c032e1b6b623ff1420c72e8bca0b10f1e5c

SHA512
2013a26123f72a4106524fd9d7389ac4654f97033d22707efc084fb2a3ad01c298eb64f01bb64861ab603615022dbe7cfc97475346edb16b3ba72e905127f101

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_m52qxp4c.i1g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\loaderr.exe

Filesize
2.6MB

MD5
70fe91a0c5f9296f4308747688d8ab23

SHA1
6373f4d14fdfd86e331aea70e992ce34c7042352

SHA256
d0044db239a246c9f854c9a0d3fff9fad04a5f4d2af570d259d39462d2842332

SHA512
0f23e322325ef03a270389cf44ac0caa162780f076e28da487f2ede7cc1c0a6c2ae23e3ea376cc0674f49c64849bbaa891e9a1d4ae2c8276ac90680b2267bb32

Download Submit
C:\Users\Public\spotify.exe

Filesize
64KB

MD5
170e58907106b43016812cecfe258605

SHA1
eee4342a64a84bbc386656b332ba4c4790be6fdd

SHA256
918f973b0d444685b0d85469a76bc0f4a6c75345b68aa2ea80206b280ba50eb4

SHA512
b39262ffab616fffbcfd4f276e44e72dad99f5463d6d9ae262cd7a5b96aa66d07d20e2429fc230a140110c01ba1d397abb9e1c8c265e3b76e8a3debb31d058e2

Download Submit
memory/1928-1-0x0000000000280000-0x0000000000528000-memory.dmp

Filesize
2.7MB

Download
memory/1928-0-0x00007FFE642D3000-0x00007FFE642D5000-memory.dmp

Filesize
8KB

Download
memory/4220-31-0x0000028851C40000-0x0000028851C62000-memory.dmp

Filesize
136KB

Download
memory/5048-15-0x0000000000E00000-0x0000000000E16000-memory.dmp

Filesize
88KB

Download
memory/5048-25-0x00007FFE642D0000-0x00007FFE64D91000-memory.dmp

Filesize
10.8MB

Download
memory/5048-24-0x00007FFE642D0000-0x00007FFE64D91000-memory.dmp

Filesize
10.8MB

Download
memory/5048-76-0x00007FFE642D0000-0x00007FFE64D91000-memory.dmp

Filesize
10.8MB

Download
memory/5048-77-0x00007FFE642D0000-0x00007FFE64D91000-memory.dmp

Filesize
10.8MB

Download