xworm | cf5a0372c0667be70f46d879e0ed82af2423f7a08d80b65c6f8adb44a8586e9c

General

Target

LabyMod4.exe
Size

4.0MB
MD5

0bbe495d506dc3f4aa6ddfeab3b2621d
SHA1

a3d1a753a89d65347f1f6693dfc15753612ccb64
SHA256

cf5a0372c0667be70f46d879e0ed82af2423f7a08d80b65c6f8adb44a8586e9c
SHA512

a66afe1bbbbcbf9e10c30989afeadd6ea1ce3b3c67e2e464ab95616b602e9851e1ebc33c6356dd0241099781558b069f135ffcb021e399df9064fd01638925b9
SSDEEP

98304:8wz+aVyehU7iYSMF5cbP/5kJsPZ6NdZRM+9ylG5Mi:7+AbhU7iY9FQ5kSYX7MllGt

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

cameras-happen.gl.at.ply.gg:23386

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral4/files/0x001c00000002aae9-4.dat	family_xworm
behavioral4/memory/5092-17-0x0000000000B40000-0x0000000000B76000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
2284	powershell.exe
3016	powershell.exe
3756	powershell.exe
3036	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
5092	Ratka.exe
5024	Laby_Mod_4.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 8 IoCs

pid	Process
3036	powershell.exe
3036	powershell.exe
2284	powershell.exe
2284	powershell.exe
3016	powershell.exe
3016	powershell.exe
3756	powershell.exe
3756	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	5092	Ratka.exe
Token: SeDebugPrivilege	5024	Laby_Mod_4.exe
Token: SeDebugPrivilege	3036	powershell.exe
Token: SeDebugPrivilege	2284	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe
Token: SeDebugPrivilege	3756	powershell.exe
Token: SeDebugPrivilege	5092	Ratka.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 5092	3380	LabyMod4.exe	76
PID 3380 wrote to memory of 5092	3380	LabyMod4.exe	76
PID 3380 wrote to memory of 5024	3380	LabyMod4.exe	77
PID 3380 wrote to memory of 5024	3380	LabyMod4.exe	77
PID 3380 wrote to memory of 5024	3380	LabyMod4.exe	77
PID 5092 wrote to memory of 3036	5092	Ratka.exe	79
PID 5092 wrote to memory of 3036	5092	Ratka.exe	79
PID 5092 wrote to memory of 2284	5092	Ratka.exe	81
PID 5092 wrote to memory of 2284	5092	Ratka.exe	81
PID 5092 wrote to memory of 3016	5092	Ratka.exe	83
PID 5092 wrote to memory of 3016	5092	Ratka.exe	83
PID 5092 wrote to memory of 3756	5092	Ratka.exe	85
PID 5092 wrote to memory of 3756	5092	Ratka.exe	85

C:\Users\Admin\AppData\Local\Temp\LabyMod4.exe
"C:\Users\Admin\AppData\Local\Temp\LabyMod4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\Ratka.exe
  "C:\Users\Admin\AppData\Local\Temp\Ratka.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5092
- - 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\Ratka.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Ratka.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2284
- - 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\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3016
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3756
- C:\Users\Admin\AppData\Local\Temp\Laby_Mod_4.exe
  "C:\Users\Admin\AppData\Local\Temp\Laby_Mod_4.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:5024

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
d0a4a3b9a52b8fe3b019f6cd0ef3dad6

SHA1
fed70ce7834c3b97edbd078eccda1e5effa527cd

SHA256
21942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31

SHA512
1a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b

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

Filesize
944B

MD5
5b705b4839f481b2485f2195c589cad0

SHA1
a55866cd9e6fedf352d0e937101755ea61a50c86

SHA256
f6a3b94a63de605bbbcf1e95cb2d743166f44ea7e9d0d2bfa0e88c94c26e37c6

SHA512
f228eccd5646068a81e79baeaf7e8bfa470b30d503bf0ca8cc746c009510ab609b5c091cadf08fab1e3581900cdb7834c775c61a95a29c2d73ccd0dcbd851bab

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

Filesize
944B

MD5
80707036df540b6657f9d443b449e3c3

SHA1
b3e7d5d97274942164bf93c8c4b8a9b68713f46f

SHA256
6651e5f976619cef991deef61776cf43d4c4b3d7c551dd2192b647df71586ab0

SHA512
65e41e9e730fed4f7a7d3f6f35875a16948b897f87c8c70b371fd0ac7f0951814f6a75e7698665194bbc65a3665a684e7be229e7e24193b50483ae7e55eebf4f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Laby_Mod_4.exe

Filesize
4.5MB

MD5
ff808f2bcef1b2d33eeee8678fa2c42d

SHA1
c1f640a45ee396f4dc70bb50ead02b0899a66122

SHA256
357d5e993e6ff9d91b2c49d4bc01a0aea465b737c0e8bc21b4cf21ff1a6824bb

SHA512
dff690c735b63fcadb0f981f792eed77f7c5af58b0f11f03d365bf3b75da04fb2898d48ab6621e979f5a81aa27856ddedef0949ef2e9bc1dcc98daf98b536b87

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

Filesize
192KB

MD5
28b6f6405702915c6873e97bb0c2b9ca

SHA1
6ecbf035654ac5758073e15e1dba611397e5adad

SHA256
367f6ada7daf79724aa888bf211cd0a6f46fc082795456d67addeef8576ca431

SHA512
c2e93e96f5b537fe1919ca4a67ca02bb28c7bfa895148872d0df39a4a45aeb5433487784be930cc4b50e39ce7a24e9389c49e600e70f1d961fa5d0138f85cd0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_epjbipru.mzp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3036-42-0x0000020475860000-0x0000020475882000-memory.dmp

Filesize
136KB

Download
memory/5024-27-0x00000000009F0000-0x0000000000E74000-memory.dmp

Filesize
4.5MB

Download
memory/5024-26-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/5024-32-0x0000000005B10000-0x0000000005B1A000-memory.dmp

Filesize
40KB

Download
memory/5024-33-0x00000000745E0000-0x0000000074D91000-memory.dmp

Filesize
7.7MB

Download
memory/5024-31-0x00000000745E0000-0x0000000074D91000-memory.dmp

Filesize
7.7MB

Download
memory/5024-35-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/5024-36-0x00000000745E0000-0x0000000074D91000-memory.dmp

Filesize
7.7MB

Download
memory/5024-30-0x0000000005A60000-0x0000000005B10000-memory.dmp

Filesize
704KB

Download
memory/5024-29-0x0000000005920000-0x00000000059B2000-memory.dmp

Filesize
584KB

Download
memory/5024-28-0x0000000005FA0000-0x0000000006546000-memory.dmp

Filesize
5.6MB

Download
memory/5092-34-0x000000001B9F0000-0x000000001BA00000-memory.dmp

Filesize
64KB

Download
memory/5092-17-0x0000000000B40000-0x0000000000B76000-memory.dmp

Filesize
216KB

Download
memory/5092-12-0x00007FFF14263000-0x00007FFF14265000-memory.dmp

Filesize
8KB

Download
memory/5092-83-0x000000001B9F0000-0x000000001BA00000-memory.dmp

Filesize
64KB

Download

Analysis

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