xloader | bb26c1f246ced83ef1ff97d4f005a7448c4c6fd85f24805eb53a69285eba7019

General

Target

PAYMENT.exe
Size

753KB
MD5

dceac041ccf4756470e11a7cf926f060
SHA1

3f887b2125c55ddb0b4dcfe4b49b9bf7f0271510
SHA256

1def824855543f8011e65445f549f01648856e222215078ebc99281415bc1268
SHA512

06ecd9b19fc3b1a7fdb6a621b9219407c3512330ccb0c405157373b64675ffa4c6d9e2ebacf2440b3ae6c6bceec24b0331d645961b1fb846d246486d42d14b7b
SSDEEP

12288:cetA1TrromUStJaIYZULyQHFoeqYsTFop4Cd1k4ONdL38arAbNjsyaUVKnp:7IHL72DNTUvkHb0zahp

Score

10^/10

xloader f4ut discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

f4ut

Decoy

studiokventura.com

rmnslashes.com

oklahomapropertybuyersllc.com

pmfce.net

yingkuncy.com

theailearning.com

artistic1cleaning.com

shqinyue.com

dentaldunya.com

karatuhotel.com

renttoownhomephoenix.com

0087wt.com

hotelsearchkwnet.com

dentavangart.com

98700l.com

seattleproducecompany.com

magicparadigm.com

cunix88.com

vr646.com

calmonleiloes.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/5000-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/5000-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1628-23-0x0000000000A30000-0x0000000000A59000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3668 set thread context of 5000	3668	PAYMENT.exe	98
PID 5000 set thread context of 3488	5000	PAYMENT.exe	56
PID 1628 set thread context of 3488	1628	ipconfig.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	PAYMENT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1628	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
5000	PAYMENT.exe
5000	PAYMENT.exe
5000	PAYMENT.exe
5000	PAYMENT.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe
1628	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
5000	PAYMENT.exe
5000	PAYMENT.exe
5000	PAYMENT.exe
1628	ipconfig.exe
1628	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5000	PAYMENT.exe
Token: SeDebugPrivilege	1628	ipconfig.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3668 wrote to memory of 5000	3668	PAYMENT.exe	98
PID 3488 wrote to memory of 1628	3488	Explorer.EXE	100
PID 3488 wrote to memory of 1628	3488	Explorer.EXE	100
PID 3488 wrote to memory of 1628	3488	Explorer.EXE	100
PID 1628 wrote to memory of 3684	1628	ipconfig.exe	101
PID 1628 wrote to memory of 3684	1628	ipconfig.exe	101
PID 1628 wrote to memory of 3684	1628	ipconfig.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3668
- - C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5000
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:3912
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/1628-23-0x0000000000A30000-0x0000000000A59000-memory.dmp

Filesize
164KB

Download
memory/1628-22-0x0000000000F80000-0x0000000000F8B000-memory.dmp

Filesize
44KB

Download
memory/1628-21-0x0000000000F80000-0x0000000000F8B000-memory.dmp

Filesize
44KB

Download
memory/3488-20-0x0000000007FF0000-0x000000000813D000-memory.dmp

Filesize
1.3MB

Download
memory/3488-31-0x00000000025C0000-0x000000000269F000-memory.dmp

Filesize
892KB

Download
memory/3488-29-0x00000000025C0000-0x000000000269F000-memory.dmp

Filesize
892KB

Download
memory/3488-28-0x00000000025C0000-0x000000000269F000-memory.dmp

Filesize
892KB

Download
memory/3488-24-0x0000000007FF0000-0x000000000813D000-memory.dmp

Filesize
1.3MB

Download
memory/3668-6-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-1-0x0000000000E90000-0x0000000000F54000-memory.dmp

Filesize
784KB

Download
memory/3668-10-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-11-0x0000000008400000-0x000000000847A000-memory.dmp

Filesize
488KB

Download
memory/3668-12-0x0000000008490000-0x00000000084C2000-memory.dmp

Filesize
200KB

Download
memory/3668-9-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/3668-15-0x0000000074830000-0x0000000074FE0000-memory.dmp

Filesize
7.7MB

Download
memory/3668-4-0x0000000005A50000-0x0000000005AE2000-memory.dmp

Filesize
584KB

Download
memory/3668-2-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/3668-3-0x0000000006000000-0x00000000065A4000-memory.dmp

Filesize
5.6MB

Download
memory/3668-8-0x0000000006CA0000-0x0000000006CC2000-memory.dmp

Filesize
136KB

Download
memory/3668-7-0x0000000005C50000-0x0000000005CA6000-memory.dmp

Filesize
344KB

Download
memory/3668-0-0x000000007483E000-0x000000007483F000-memory.dmp

Filesize
4KB

Download
memory/3668-5-0x0000000005950000-0x000000000595A000-memory.dmp

Filesize
40KB

Download
memory/5000-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/5000-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/5000-19-0x0000000001660000-0x0000000001671000-memory.dmp

Filesize
68KB

Download
memory/5000-16-0x0000000001980000-0x0000000001CCA000-memory.dmp

Filesize
3.3MB

Download

Analysis

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