xloader | 762dd852506aea16a7cd743a103dce8067bc4906cdd45843778e7c0602bcc142

General

Target

Original BL Invoice & Packing List pdf.exe
Size

1.2MB
MD5

32edc7a227ce30813c73756c2fdc90cd
SHA1

bcf54c69b988f72a819f15692f53f5eb839a4be7
SHA256

3f88232fbf581d4a628de3b80c624fdabea29d159917ef596fe13b2f49f8268e
SHA512

c97da96cd175f107538eae3a7eef076b24faf69721ab52a2d01b0a5b2c67f3140c2b8eef48d51a4b74334eac8f678116102705aff66cc127eef8c82693a9f989
SSDEEP

24576:aYNkCmS4OsBgo0q4wMZa3mK/vfW+t3leBsAU8:aEZoHMZa2K3P1eB

Score

10^/10

xloader c3sc discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

c3sc

Decoy

vnye2037.com

adopttongling.com

miss-bim.com

ylyqrbii.icu

iregentos.info

teseipropiedades.com

jsprimer.com

keepminkowicz.com

7999399.com

bdgooddq.com

komovnrebi.com

politicalswim.com

justokaydrawings.com

eglidons.com

ici-voyant.com

thirstymarketing.com

viajesyturismo360.com

shadesofshadow.com

learnenglishinceret.com

notnotdown.club

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/4884-8-0x0000000003260000-0x0000000003272000-memory.dmp	CustAttr

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4280-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4280-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1348-24-0x0000000000900000-0x0000000000929000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4280 set thread context of 3424	4280	Original BL Invoice & Packing List pdf.exe	56
PID 1348 set thread context of 3424	1348	netsh.exe	56

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	Original BL Invoice & Packing List pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

pid	Process
4280	Original BL Invoice & Packing List pdf.exe
4280	Original BL Invoice & Packing List pdf.exe
4280	Original BL Invoice & Packing List pdf.exe
4280	Original BL Invoice & Packing List pdf.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe
1348	netsh.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4280	Original BL Invoice & Packing List pdf.exe
4280	Original BL Invoice & Packing List pdf.exe
4280	Original BL Invoice & Packing List pdf.exe
1348	netsh.exe
1348	netsh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4280	Original BL Invoice & Packing List pdf.exe
Token: SeDebugPrivilege	1348	netsh.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 4884 wrote to memory of 4280	4884	Original BL Invoice & Packing List pdf.exe	99
PID 3424 wrote to memory of 1348	3424	Explorer.EXE	100
PID 3424 wrote to memory of 1348	3424	Explorer.EXE	100
PID 3424 wrote to memory of 1348	3424	Explorer.EXE	100
PID 1348 wrote to memory of 1344	1348	netsh.exe	101
PID 1348 wrote to memory of 1344	1348	netsh.exe	101
PID 1348 wrote to memory of 1344	1348	netsh.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\Original BL Invoice & Packing List pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Original BL Invoice & Packing List pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Users\Admin\AppData\Local\Temp\Original BL Invoice & Packing List pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Original BL Invoice & Packing List pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4280
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.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:1348
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Original BL Invoice & Packing List pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1348-24-0x0000000000900000-0x0000000000929000-memory.dmp

Filesize
164KB

Download
memory/1348-21-0x00000000012F0000-0x000000000130E000-memory.dmp

Filesize
120KB

Download
memory/1348-23-0x00000000012F0000-0x000000000130E000-memory.dmp

Filesize
120KB

Download
memory/3424-32-0x0000000008040000-0x00000000080FE000-memory.dmp

Filesize
760KB

Download
memory/3424-30-0x0000000008040000-0x00000000080FE000-memory.dmp

Filesize
760KB

Download
memory/3424-29-0x0000000008040000-0x00000000080FE000-memory.dmp

Filesize
760KB

Download
memory/3424-25-0x0000000007B80000-0x0000000007C55000-memory.dmp

Filesize
852KB

Download
memory/3424-20-0x0000000007B80000-0x0000000007C55000-memory.dmp

Filesize
852KB

Download
memory/4280-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4280-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4280-19-0x0000000000E00000-0x0000000000E10000-memory.dmp

Filesize
64KB

Download
memory/4280-16-0x00000000012C0000-0x000000000160A000-memory.dmp

Filesize
3.3MB

Download
memory/4884-6-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4884-7-0x0000000005BB0000-0x0000000005C06000-memory.dmp

Filesize
344KB

Download
memory/4884-15-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4884-11-0x0000000007530000-0x00000000075A8000-memory.dmp

Filesize
480KB

Download
memory/4884-10-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4884-9-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/4884-8-0x0000000003260000-0x0000000003272000-memory.dmp

Filesize
72KB

Download
memory/4884-12-0x00000000075A0000-0x00000000075D0000-memory.dmp

Filesize
192KB

Download
memory/4884-0-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/4884-5-0x0000000005960000-0x000000000596A000-memory.dmp

Filesize
40KB

Download
memory/4884-4-0x00000000059B0000-0x0000000005A42000-memory.dmp

Filesize
584KB

Download
memory/4884-3-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/4884-2-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download
memory/4884-1-0x0000000000D90000-0x0000000000EC4000-memory.dmp

Filesize
1.2MB

Download

Analysis

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