xworm | 3721299ab8cab7453d4781c5d3acc4304dffd8335164fbdfc31c80959cb0b35b

Analysis

max time kernel
134s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29/10/2024, 14:36

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General

Target
4.exe
Size 1.1MB
Sample241029-ryqqlswdrj
SHA256 3721299ab8cab7453d4781c5d3acc4304dffd8335164fbdfc31c80959cb0b35b
MD5 b1409192281b85ae112868f828087864
SHA1 a6e85b73dfbc0494f435fe2e78bdb4977a4a2fe5
SHA512 509ad61d75da81b46ce50ab32f787b6bbf0763a5dfe9e7c2ce0791b7a5006af8529c3b54fb3ec76a3709dbf8b9562b1150fae50a59bf9eb2f56529b98ea56ebf
SSDEEP 12288:1CaR45KgL9fLyT+o2+gmuQIIq65/PKtfCnbMtqL:c2gBfLxHBQIf6pihCIc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

176.9.162.125:4060

Mutex

4ZrqftQk1xSTve1a

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2492-4-0x0000000000400000-0x0000000000410000-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
4816	powershell.exe
4672	powershell.exe
3412	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AddInProcess32.lnk	AddInProcess32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AddInProcess32.lnk	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 2492	3008	4.exe	88

System Location Discovery: System Language Discovery 1 TTPs 4 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	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4816	powershell.exe
4816	powershell.exe
4672	powershell.exe
4672	powershell.exe
3412	powershell.exe
3412	powershell.exe
2492	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	4.exe
Token: SeDebugPrivilege	2492	AddInProcess32.exe
Token: SeDebugPrivilege	4816	powershell.exe
Token: SeDebugPrivilege	4672	powershell.exe
Token: SeDebugPrivilege	3412	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2492	AddInProcess32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 2492	3008	4.exe	88
PID 3008 wrote to memory of 4564	3008	4.exe	89
PID 3008 wrote to memory of 4564	3008	4.exe	89
PID 3008 wrote to memory of 4564	3008	4.exe	89
PID 2492 wrote to memory of 4816	2492	AddInProcess32.exe	96
PID 2492 wrote to memory of 4816	2492	AddInProcess32.exe	96
PID 2492 wrote to memory of 4816	2492	AddInProcess32.exe	96
PID 2492 wrote to memory of 4672	2492	AddInProcess32.exe	101
PID 2492 wrote to memory of 4672	2492	AddInProcess32.exe	101
PID 2492 wrote to memory of 4672	2492	AddInProcess32.exe	101
PID 2492 wrote to memory of 3412	2492	AddInProcess32.exe	103
PID 2492 wrote to memory of 3412	2492	AddInProcess32.exe	103
PID 2492 wrote to memory of 3412	2492	AddInProcess32.exe	103

C:\Users\Admin\AppData\Local\Temp\4.exe
"C:\Users\Admin\AppData\Local\Temp\4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4816
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AddInProcess32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4672
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\AddInProcess32.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3412
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:4564

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
MD5 968cb9309758126772781b83adb8a28f
SHA1 8da30e71accf186b2ba11da1797cf67f8f78b47c
SHA512 4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 18KB
SHA256 bace00fbf02209bc56668ba6acd645a215c16bffb04d4c0475c2bc9aca8833ff
MD5 9ff3b84e231ba2d82a41d966428c1bd1
SHA1 df6b9455a531c5f05e46b296be15b9914832846c
SHA512 ef009bca28d4adfa63bdb0c5a08ffa4b7b258c2475db2d914acae7e9385112e6fae39273ca6abda292d1250048cc095611312b668cc79c5aeab0172677906c93
SSDEEP 384:rsf+Bo9i+3gDlipJ1mXckopToX4K6seYwMEV03SoZBfYSg8jEDkGQ0gdMtkKhD:wf+wSpopToX4NfrmSUWiED7Cm3
MD5 SHA1 SHA512 SSDEEP

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 18KB
SHA256 6a66c7e2c4e10864870a804e88c8cdbaaccfd57a27e7259856884f9a9a71f223
MD5 91c47c45ac0c9bd2ef97cdc469a975d2
SHA1 d5fc1240bab120770605ffbc2fc185b59804063f
SHA512 3ca671d7519752b48409adf0c6f0123343c07414d16cfd2621b2bfa5af6a81ffc6bf1f5c4a9a29f9f07032d9d5352d3bb32ef1b3df679bed8c8076b24db0ec1c
SSDEEP 384:Csf+Bz991zEAHuBbsBiNsNY19LG3oUZ+nL+nFVkki0SO1:ff6RO6oNsNAmfZ+KFiki0H
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_scn1fs3c.1ni.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_scn1fs3c.1ni.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/2492-108-0x0000000007330000-0x00000000073B2000-memory.dmp

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memory/2492-106-0x0000000006310000-0x000000000631A000-memory.dmp

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memory/2492-6-0x0000000005510000-0x00000000055AC000-memory.dmp

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memory/2492-75-0x000000007522E000-0x000000007522F000-memory.dmp

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memory/2492-112-0x0000000007B40000-0x0000000007B8C000-memory.dmp

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memory/2492-111-0x00000000077A0000-0x0000000007AF4000-memory.dmp

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memory/2492-110-0x0000000007730000-0x0000000007794000-memory.dmp

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memory/2492-109-0x00000000076A0000-0x000000000772C000-memory.dmp

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memory/2492-4-0x0000000000400000-0x0000000000410000-memory.dmp

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memory/2492-103-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/2492-107-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/2492-5-0x000000007522E000-0x000000007522F000-memory.dmp

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memory/2492-104-0x00000000065A0000-0x0000000006B44000-memory.dmp

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memory/2492-105-0x0000000006340000-0x00000000063D2000-memory.dmp

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memory/3008-3-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

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memory/3008-0-0x00007FFB33813000-0x00007FFB33815000-memory.dmp

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memory/3008-2-0x000001B35F770000-0x000001B35F7D2000-memory.dmp

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memory/3008-7-0x00007FFB33810000-0x00007FFB342D1000-memory.dmp

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memory/3008-1-0x000001B35F3C0000-0x000001B35F3D4000-memory.dmp

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memory/3412-88-0x00000000707D0000-0x000000007081C000-memory.dmp

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memory/3412-86-0x0000000005520000-0x0000000005874000-memory.dmp

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memory/4672-65-0x00000000707D0000-0x000000007081C000-memory.dmp

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memory/4672-59-0x0000000005460000-0x00000000057B4000-memory.dmp

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memory/4816-13-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/4816-45-0x0000000007410000-0x0000000007421000-memory.dmp

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memory/4816-46-0x0000000007440000-0x000000000744E000-memory.dmp

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memory/4816-47-0x0000000007450000-0x0000000007464000-memory.dmp

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memory/4816-48-0x0000000007560000-0x000000000757A000-memory.dmp

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memory/4816-49-0x0000000007490000-0x0000000007498000-memory.dmp

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memory/4816-52-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/4816-44-0x00000000074A0000-0x0000000007536000-memory.dmp

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memory/4816-43-0x0000000007270000-0x000000000727A000-memory.dmp

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memory/4816-42-0x0000000007210000-0x000000000722A000-memory.dmp

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memory/4816-41-0x0000000007850000-0x0000000007ECA000-memory.dmp

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memory/4816-40-0x00000000070E0000-0x0000000007183000-memory.dmp

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memory/4816-39-0x00000000070C0000-0x00000000070DE000-memory.dmp

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memory/4816-29-0x00000000707D0000-0x000000007081C000-memory.dmp

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memory/4816-28-0x00000000064A0000-0x00000000064D2000-memory.dmp

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memory/4816-27-0x0000000005F10000-0x0000000005F5C000-memory.dmp

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memory/4816-26-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

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memory/4816-25-0x00000000058D0000-0x0000000005C24000-memory.dmp

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memory/4816-14-0x00000000057F0000-0x0000000005856000-memory.dmp

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memory/4816-15-0x0000000005860000-0x00000000058C6000-memory.dmp

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memory/4816-12-0x0000000005650000-0x0000000005672000-memory.dmp

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memory/4816-11-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/4816-9-0x0000000004FC0000-0x00000000055E8000-memory.dmp

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memory/4816-10-0x0000000075220000-0x00000000759D0000-memory.dmp

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memory/4816-8-0x00000000025F0000-0x0000000002626000-memory.dmp

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