xworm | d9893a1d31b8338aedd6f9116cb5dc2c04ace45ca6f065e829ecb68c41db96c7

General

Target

wizworm v4.exe
Size

13.3MB
MD5

326cae42b360bc91696a9a09d1f497f9
SHA1

9162a3fa7edd91db0b4b209ffb632f4933530e19
SHA256

d9893a1d31b8338aedd6f9116cb5dc2c04ace45ca6f065e829ecb68c41db96c7
SHA512

a89d1551d86502d222346d44337cccabb0de1586e0d1b8981b9e63676c2341054d61fdb77d07df3aeca0920b60de5031f45067bd23bf3bb0e198224f441c910a
SSDEEP

393216:uOLsLayrPGrYlesyvrNxJ/2eMxV3ODQvT6O9lDp2h:jALHbOEiNiDhmQjg

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

3.0

C2

3skr.uncofig.com:9999

Mutex

wRjQMjeNtaZnUCMU

Attributes

Install_directory
%AppData%
install_file
USB.exe
telegram
https://api.telegram.org/bot7942324376:AAFz5Z-GdKIj1CePZyqIUmvNWOymMRw8Lmk/sendMessage?chat_id=2078478344

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x001c00000002aae3-7.dat	family_xworm
behavioral2/memory/1256-15-0x00000000003A0000-0x00000000003B0000-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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2396	powershell.exe
2796	powershell.exe
1992	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
1256	set.exe
4376	WizWorm.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
1	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 7 IoCs

pid	Process
2396	powershell.exe
2396	powershell.exe
2796	powershell.exe
2796	powershell.exe
1992	powershell.exe
1992	powershell.exe
1256	set.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1256	set.exe
Token: SeDebugPrivilege	2396	powershell.exe
Token: SeDebugPrivilege	2796	powershell.exe
Token: SeDebugPrivilege	1992	powershell.exe
Token: SeDebugPrivilege	1256	set.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1256	set.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 1256	3308	wizworm v4.exe	78
PID 3308 wrote to memory of 1256	3308	wizworm v4.exe	78
PID 3308 wrote to memory of 4376	3308	wizworm v4.exe	79
PID 3308 wrote to memory of 4376	3308	wizworm v4.exe	79
PID 1256 wrote to memory of 2396	1256	set.exe	84
PID 1256 wrote to memory of 2396	1256	set.exe	84
PID 1256 wrote to memory of 2796	1256	set.exe	86
PID 1256 wrote to memory of 2796	1256	set.exe	86
PID 1256 wrote to memory of 1992	1256	set.exe	88
PID 1256 wrote to memory of 1992	1256	set.exe	88

C:\Users\Admin\AppData\Local\Temp\wizworm v4.exe
"C:\Users\Admin\AppData\Local\Temp\wizworm v4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3308
- C:\Users\Admin\AppData\Local\Temp\set.exe
  "C:\Users\Admin\AppData\Local\Temp\set.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1256
- - 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\set.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2396
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'set.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2796
- - 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\Roaming\set.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1992
- C:\Users\Admin\AppData\Local\Temp\WizWorm.exe
  "C:\Users\Admin\AppData\Local\Temp\WizWorm.exe"
  2⤵
  - Executes dropped EXE
  PID:4376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
944B

MD5
856900844f6f1c326c89d0bcfb2f0c28

SHA1
1caad440d46fa8c0cbed4822b4be2bbdddba97c2

SHA256
ae24414ec53b3ae43ddbf1ff7b6643f8bf45281406f6415742f4305360d70a32

SHA512
ed8f421e151d797b33440dd0ddb6d6a5ec93fe7806ad82c60af3f77d545cf5dc319bce67804bd0613bb551a3f01648ec0d1918805dc7342145c8bb23ad12cab4

Download Submit
C:\Users\Admin\AppData\Local\Temp\WizWorm.exe

Filesize
19.8MB

MD5
df02e1780dd49d8f537b1250211696fa

SHA1
ed88bba690cae57196ba10fa01ec1b86f6a39fd6

SHA256
27d5ba22bafbd94685f9c8cd3e6ebabd88e2a94bbd6be8ec25ec023b0e5c066d

SHA512
fef2bbc7840fa1066ac696d0da731adaa2d57b5a63b94cf7362ede33cb590452ddd9ec253d4c03b8b7e86e93fa4a367c0882fa8f498f40a19944ccad4674d223

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jkq3pued.uy4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\set.exe

Filesize
38KB

MD5
e1929d0781ff08abf8be3051479043b6

SHA1
0605a5657e022bd1cadf80f13446c678728dcde9

SHA256
b4ae6a462c5f24bec5870f6e92d94a00b1e1a4abd95e5433d6ac99a0f9d92042

SHA512
fb47c341b636293d500f1892f02e2be2b16bd0301eedc0c30025c00ae22ce3fe6d42abc0a4837cc5551eeed6cd5bbe815a0301db86bac6a84177a6c103d54d27

Download Submit
memory/1256-34-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/1256-72-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/1256-71-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/1256-15-0x00000000003A0000-0x00000000003B0000-memory.dmp

Filesize
64KB

Download
memory/1256-16-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/2396-40-0x0000026050560000-0x0000026050582000-memory.dmp

Filesize
136KB

Download
memory/3308-0-0x00007FF9D6B73000-0x00007FF9D6B75000-memory.dmp

Filesize
8KB

Download
memory/3308-31-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/3308-4-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/3308-1-0x0000000000C20000-0x000000000196E000-memory.dmp

Filesize
13.3MB

Download
memory/4376-33-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download
memory/4376-32-0x0000025575C30000-0x000002557700A000-memory.dmp

Filesize
19.9MB

Download
memory/4376-30-0x00007FF9D6B70000-0x00007FF9D7632000-memory.dmp

Filesize
10.8MB

Download

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