xworm | d9acb8fc36fb78b72c6c51a753bac529acc7a00fe2ab64b2e5d98c3771884081

Analysis

max time kernel
6s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01/11/2024, 05:55

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General

Target

Request for Quotation.pdf.exe
Size

1.6MB
MD5

e431cc534657e37b3e84065eba53105e
SHA1

fc88bf55a27ca270c2c2dc721c64da6966a0a5c1
SHA256

0e4aa3896358b32016c903f837a762052757ebeeb525b4077062864710de329a
SHA512

4894c6dc19987f1b2e902cfa7314de8c179c85135fcd48ee103def925316e9f15fe65bd990c9c61d61a70672b7c1cff30c6c1ff751654f63327b9a2ce1016c03
SSDEEP

12288:C27f6PD2zYzh+FoVIx+AEA4KLvSt6xjplsi:Vf8xzwFdx+Y4kvF5si

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

kanrplest.duckdns.org:4068

Mutex

TdUxMCK2FUdy51AH

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3736-4-0x0000000000400000-0x0000000000410000-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
4472	powershell.exe
1572	powershell.exe
1864	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1172 set thread context of 3736	1172	Request for Quotation.pdf.exe	89

System Location Discovery: System Language Discovery 1 TTPs 1 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	jsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	Request for Quotation.pdf.exe
Token: SeDebugPrivilege	3736	jsc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1172 wrote to memory of 1108	1172	Request for Quotation.pdf.exe	88
PID 1172 wrote to memory of 1108	1172	Request for Quotation.pdf.exe	88
PID 1172 wrote to memory of 1108	1172	Request for Quotation.pdf.exe	88
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3736	1172	Request for Quotation.pdf.exe	89
PID 1172 wrote to memory of 3484	1172	Request for Quotation.pdf.exe	90
PID 1172 wrote to memory of 3484	1172	Request for Quotation.pdf.exe	90
PID 1172 wrote to memory of 3484	1172	Request for Quotation.pdf.exe	90

C:\Users\Admin\AppData\Local\Temp\Request for Quotation.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Request for Quotation.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1172
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
  2⤵
  PID:1108
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3736
- - 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\jsc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:4472
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'jsc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:1572
- - 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\jsc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    PID:1864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  PID:3484

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
dfd279e86bf744ce78e7a4e3c39b1a7a

SHA1
16d6d7799497e5b0fce68285944eea69302620db

SHA256
8deab41a7fbfd98083114c99c5604637cceffe942ff64a923ddab75a99ac2079

SHA512
8f15173bda69e4ba9c3e21a45eab43a72ba5bf854935a806f727ad4dc921aad85dba47b3c61ae01eb35ac3834a755d56308c3e4b932596f3d70236e5ec4447b3

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

Filesize
18KB

MD5
0600672b9b4a76130d82d94c9529f2b8

SHA1
4cb36ed97822f6e5958f91e5b71818a3a7709d71

SHA256
7d577484708fc0c9d384c043456aa2a2e972fd6a5f08188d74fcf528fb310afe

SHA512
489d042380df9a42362713e471f869b57b419da3650e5d770a88c6f57e015785e50f0461dc501d41d7143fab34b73a6c3180792c7c673bc43fdfb531b328b70f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dirl3gos.uoc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1172-1-0x00000213A1750000-0x00000213A1762000-memory.dmp

Filesize
72KB

Download
memory/1172-2-0x00000213A1B70000-0x00000213A1BD2000-memory.dmp

Filesize
392KB

Download
memory/1172-3-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/1172-0-0x00007FFFAC463000-0x00007FFFAC465000-memory.dmp

Filesize
8KB

Download
memory/1172-7-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/1572-63-0x0000000006070000-0x00000000063C4000-memory.dmp

Filesize
3.3MB

Download
memory/1572-65-0x00000000707A0000-0x00000000707EC000-memory.dmp

Filesize
304KB

Download
memory/1864-85-0x0000000005F90000-0x00000000062E4000-memory.dmp

Filesize
3.3MB

Download
memory/1864-87-0x00000000707A0000-0x00000000707EC000-memory.dmp

Filesize
304KB

Download
memory/3736-6-0x0000000005490000-0x000000000552C000-memory.dmp

Filesize
624KB

Download
memory/3736-100-0x00000000751FE000-0x00000000751FF000-memory.dmp

Filesize
4KB

Download
memory/3736-107-0x0000000006570000-0x0000000006602000-memory.dmp

Filesize
584KB

Download
memory/3736-108-0x0000000006550000-0x000000000655A000-memory.dmp

Filesize
40KB

Download
memory/3736-106-0x00000000066E0000-0x0000000006C84000-memory.dmp

Filesize
5.6MB

Download
memory/3736-105-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/3736-109-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/3736-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3736-5-0x00000000751FE000-0x00000000751FF000-memory.dmp

Filesize
4KB

Download
memory/4472-29-0x00000000707A0000-0x00000000707EC000-memory.dmp

Filesize
304KB

Download
memory/4472-40-0x0000000007BB0000-0x0000000007C53000-memory.dmp

Filesize
652KB

Download
memory/4472-43-0x0000000007D50000-0x0000000007D5A000-memory.dmp

Filesize
40KB

Download
memory/4472-41-0x0000000008320000-0x000000000899A000-memory.dmp

Filesize
6.5MB

Download
memory/4472-44-0x0000000007F60000-0x0000000007FF6000-memory.dmp

Filesize
600KB

Download
memory/4472-45-0x0000000007EE0000-0x0000000007EF1000-memory.dmp

Filesize
68KB

Download
memory/4472-28-0x0000000007B70000-0x0000000007BA2000-memory.dmp

Filesize
200KB

Download
memory/4472-46-0x0000000007F10000-0x0000000007F1E000-memory.dmp

Filesize
56KB

Download
memory/4472-48-0x0000000008020000-0x000000000803A000-memory.dmp

Filesize
104KB

Download
memory/4472-49-0x0000000008000000-0x0000000008008000-memory.dmp

Filesize
32KB

Download
memory/4472-47-0x0000000007F20000-0x0000000007F34000-memory.dmp

Filesize
80KB

Download
memory/4472-52-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/4472-39-0x0000000006F90000-0x0000000006FAE000-memory.dmp

Filesize
120KB

Download
memory/4472-42-0x0000000007CE0000-0x0000000007CFA000-memory.dmp

Filesize
104KB

Download
memory/4472-9-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/4472-13-0x00000000062B0000-0x0000000006316000-memory.dmp

Filesize
408KB

Download
memory/4472-26-0x00000000069B0000-0x00000000069CE000-memory.dmp

Filesize
120KB

Download
memory/4472-27-0x00000000069F0000-0x0000000006A3C000-memory.dmp

Filesize
304KB

Download
memory/4472-14-0x0000000006320000-0x0000000006386000-memory.dmp

Filesize
408KB

Download
memory/4472-24-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/4472-25-0x0000000006390000-0x00000000066E4000-memory.dmp

Filesize
3.3MB

Download
memory/4472-12-0x0000000006150000-0x0000000006172000-memory.dmp

Filesize
136KB

Download
memory/4472-11-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/4472-10-0x0000000005AD0000-0x00000000060F8000-memory.dmp

Filesize
6.2MB

Download
memory/4472-8-0x0000000005430000-0x0000000005466000-memory.dmp

Filesize
216KB

Download