xloader | d4c0160b065dd17429cf144ca3dd2424a271b968f9de7f358c19859de933f28d

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 22:31

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General

Target

rtgs_pdf.exe
Size

334KB
MD5

2a7387a3d5311f7c3d8ae5bd744314f2
SHA1

f4f9b8650afb973059b1ead62f6bab60e52893a9
SHA256

9affeeb392ec57f487776cb8da8e8abb89b3250aefa2d2f0b29997b0bd33d00f
SHA512

9990eb16fa0273bf02353e107b02d7743e9b9946228465126b511b5c4f974f26a7a72b73fa724d467d29f87aa0107270e7cef7b354f68aea9ddcc02f673e456a
SSDEEP

6144:L5R5dVv2Xp7L76Ad+UUT4pOu0u7bNf1bqWDBtAwP/kAGL:dRJm7f6/4jx7bNf5qwVP9

Score

10^/10

xloader s9zh discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

s9zh

Decoy

paintedinafrica.com

electrumfix.download

edlange.com

tqiawy.xyz

satiscenter.xyz

nc-affiliates.com

agencybuilderforum.com

testabcde.net

venisseturf.net

rubenvdsande.com

nzmatrimony.com

mdthriftsandflips.com

virtualfxstudio.com

communityinsuranceut.com

qqbokep.com

copeva.net

bookedupdaily.com

houstongrowmyairway.com

fortunapublishing.com

empireplumbingandheating.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
Xloader family
xloader

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3640-6-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3640-8-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4452-17-0x0000000000370000-0x0000000000399000-memory.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 3640	916	rtgs_pdf.exe	95
PID 3640 set thread context of 3428	3640	vbc.exe	56
PID 4452 set thread context of 3428	4452	mstsc.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3532	916	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 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	rtgs_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
916	rtgs_pdf.exe
916	rtgs_pdf.exe
916	rtgs_pdf.exe
3640	vbc.exe
3640	vbc.exe
3640	vbc.exe
3640	vbc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe
4452	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3640	vbc.exe
3640	vbc.exe
3640	vbc.exe
4452	mstsc.exe
4452	mstsc.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	rtgs_pdf.exe
Token: SeDebugPrivilege	3640	vbc.exe
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeDebugPrivilege	4452	mstsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 916 wrote to memory of 3640	916	rtgs_pdf.exe	95
PID 3428 wrote to memory of 4452	3428	Explorer.EXE	99
PID 3428 wrote to memory of 4452	3428	Explorer.EXE	99
PID 3428 wrote to memory of 4452	3428	Explorer.EXE	99
PID 4452 wrote to memory of 2840	4452	mstsc.exe	101
PID 4452 wrote to memory of 2840	4452	mstsc.exe	101
PID 4452 wrote to memory of 2840	4452	mstsc.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Local\Temp\rtgs_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\rtgs_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:916
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3640
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 916 -s 1068
    3⤵
    - Program crash
    PID:3532
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 916 -ip 916
1⤵
PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

memory/916-0-0x0000000075402000-0x0000000075403000-memory.dmp

Filesize
4KB

Download
memory/916-1-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/916-2-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/916-4-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/916-3-0x0000000075402000-0x0000000075403000-memory.dmp

Filesize
4KB

Download
memory/916-5-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/916-11-0x0000000075400000-0x00000000759B1000-memory.dmp

Filesize
5.7MB

Download
memory/3428-9-0x0000000002980000-0x0000000002A80000-memory.dmp

Filesize
1024KB

Download
memory/3428-18-0x0000000002980000-0x0000000002A80000-memory.dmp

Filesize
1024KB

Download
memory/3428-22-0x0000000008590000-0x0000000008707000-memory.dmp

Filesize
1.5MB

Download
memory/3428-23-0x0000000008590000-0x0000000008707000-memory.dmp

Filesize
1.5MB

Download
memory/3428-25-0x0000000008590000-0x0000000008707000-memory.dmp

Filesize
1.5MB

Download
memory/3640-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3640-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3640-12-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/4452-13-0x00000000001C0000-0x00000000002FA000-memory.dmp

Filesize
1.2MB

Download
memory/4452-16-0x00000000001C0000-0x00000000002FA000-memory.dmp

Filesize
1.2MB

Download
memory/4452-17-0x0000000000370000-0x0000000000399000-memory.dmp

Filesize
164KB

Download