xloader | aadb75ee85117dbd3cfd63f250f7f6535435d327bf5a5c18fca22cee3123b118

General

Target

WTS-SOA OCT21_pdf.exe
Size

541KB
MD5

3591900fe0a5aa6d4aa7333dd8fa2087
SHA1

6ad19947aaa288adba42f0ef78da4679a713634d
SHA256

1dd7df2847fe97dcf3a982796de329170823badae79b8342d5180ed5a11633ba
SHA512

fa0cab7da77825c50dc5963d505fe7aceb8ace8f7236190086488b81643a81a6c9b156a90e8045533c421b81175dbed7d583f28d61caa144fab61e9ab350bb5a
SSDEEP

12288:O78H1X++lTldtyhZ1g+KqRfoCoE40BhwFpCke:t+KT6Zajcon+gpCke

Score

10^/10

xloader xc52 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

xc52

Decoy

koebnertriangle.com

maltbahis74.com

invisionment.com

buzzcupid.com

portavellarestaurant.com

vegan-mexican.com

magotan100.com

focalpatio.com

teammissouri.club

marketplacejoy.com

cxz6.com

bettersalud.info

viesereine.net

neondashboard.com

linuxsauce.net

samuelcollie.com

lavishlylashed.net

gosseinsag.com

isaeitaly.com

mediakal-sa.net

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/2756-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2756-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2152-22-0x0000000000600000-0x0000000000629000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2756 set thread context of 3424	2756	WTS-SOA OCT21_pdf.exe	56
PID 2152 set thread context of 3424	2152	mstsc.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	WTS-SOA OCT21_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 46 IoCs

pid	Process
2756	WTS-SOA OCT21_pdf.exe
2756	WTS-SOA OCT21_pdf.exe
2756	WTS-SOA OCT21_pdf.exe
2756	WTS-SOA OCT21_pdf.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe
2152	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2756	WTS-SOA OCT21_pdf.exe
2756	WTS-SOA OCT21_pdf.exe
2756	WTS-SOA OCT21_pdf.exe
2152	mstsc.exe
2152	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	WTS-SOA OCT21_pdf.exe
Token: SeDebugPrivilege	2152	mstsc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 2444 wrote to memory of 2756	2444	WTS-SOA OCT21_pdf.exe	98
PID 3424 wrote to memory of 2152	3424	Explorer.EXE	99
PID 3424 wrote to memory of 2152	3424	Explorer.EXE	99
PID 3424 wrote to memory of 2152	3424	Explorer.EXE	99
PID 2152 wrote to memory of 5108	2152	mstsc.exe	100
PID 2152 wrote to memory of 5108	2152	mstsc.exe	100
PID 2152 wrote to memory of 5108	2152	mstsc.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3424
- C:\Users\Admin\AppData\Local\Temp\WTS-SOA OCT21_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\WTS-SOA OCT21_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2444
- - C:\Users\Admin\AppData\Local\Temp\WTS-SOA OCT21_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\WTS-SOA OCT21_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2756
- 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:2152
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\WTS-SOA OCT21_pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5108

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/2152-19-0x0000000000190000-0x00000000002CA000-memory.dmp

Filesize
1.2MB

Download
memory/2152-22-0x0000000000600000-0x0000000000629000-memory.dmp

Filesize
164KB

Download
memory/2152-21-0x0000000000190000-0x00000000002CA000-memory.dmp

Filesize
1.2MB

Download
memory/2444-6-0x00000000058E0000-0x00000000058EC000-memory.dmp

Filesize
48KB

Download
memory/2444-1-0x0000000000B40000-0x0000000000BCE000-memory.dmp

Filesize
568KB

Download
memory/2444-5-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/2444-0-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/2444-7-0x00000000751CE000-0x00000000751CF000-memory.dmp

Filesize
4KB

Download
memory/2444-8-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/2444-9-0x0000000007FE0000-0x000000000807C000-memory.dmp

Filesize
624KB

Download
memory/2444-10-0x0000000008080000-0x00000000080D4000-memory.dmp

Filesize
336KB

Download
memory/2444-4-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/2444-13-0x00000000751C0000-0x0000000075970000-memory.dmp

Filesize
7.7MB

Download
memory/2444-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/2444-3-0x00000000055B0000-0x0000000005642000-memory.dmp

Filesize
584KB

Download
memory/2756-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2756-17-0x00000000012A0000-0x00000000012B1000-memory.dmp

Filesize
68KB

Download
memory/2756-14-0x0000000001730000-0x0000000001A7A000-memory.dmp

Filesize
3.3MB

Download
memory/2756-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3424-18-0x00000000023D0000-0x00000000024E6000-memory.dmp

Filesize
1.1MB

Download
memory/3424-23-0x00000000023D0000-0x00000000024E6000-memory.dmp

Filesize
1.1MB

Download
memory/3424-27-0x0000000008290000-0x00000000083D6000-memory.dmp

Filesize
1.3MB

Download
memory/3424-28-0x0000000008290000-0x00000000083D6000-memory.dmp

Filesize
1.3MB

Download
memory/3424-30-0x0000000008290000-0x00000000083D6000-memory.dmp

Filesize
1.3MB

Download

Analysis

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