xloader | 35204f1850b1439ef9a8fd958d6c3045edae69378aa3593021795d0600fc5a01

General

Target

$PLUGINSDIR/gjspvjmvb.dll
Size

21KB
MD5

cb5ae97fd494cd241495179668d3a3d2
SHA1

33e6282a11c9140860710cd4a251e428e5cb75b8
SHA256

2e31c7a695a70e216180fefa04ff81c8ad783b72b8d5fe40f506e00ada784f6f
SHA512

83d265679fcb712cb8810d9b24a68c2d952cdb00656464b3c52a34a9bac48a62d2ed26d82ff0837946876bc1d992796376703a394da4c451cae671a043f32f44
SSDEEP

384:aSpqwtpSNch8eco6p87VVV++jtFQmsDyPVyQYEJILzZcR:aSpptpVG8vVljI5DYiEJILzZk

Score

10^/10

xloader b65i discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b65i

Decoy

leofighters.com

smartat2.xyz

encontrevariedades.com

jimwilliamstutoring.com

kanpaiecuador.com

accura-inv.com

xtzgjxzz.com

scentstrategies.com

high-clicks2.com

hadishgebray.com

woodlawnbailbonds.com

dmsolutionsco.com

rdvulm21.com

beachyweens.com

ishirmansingh.com

rimmasbracelets.com

kellibrat.com

roselmasm.com

datkamoney.info

fermers.club

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral3/memory/2164-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2164-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2012-9-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2556 set thread context of 2164	2556	rundll32.exe	31
PID 2164 set thread context of 1232	2164	rundll32.exe	21
PID 2012 set thread context of 1232	2012	ipconfig.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
2012	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2164	rundll32.exe
2164	rundll32.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe
2012	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2164	rundll32.exe
2164	rundll32.exe
2164	rundll32.exe
2012	ipconfig.exe
2012	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	rundll32.exe
Token: SeDebugPrivilege	2012	ipconfig.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2168 wrote to memory of 2556	2168	rundll32.exe	30
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 2556 wrote to memory of 2164	2556	rundll32.exe	31
PID 1232 wrote to memory of 2012	1232	Explorer.EXE	37
PID 1232 wrote to memory of 2012	1232	Explorer.EXE	37
PID 1232 wrote to memory of 2012	1232	Explorer.EXE	37
PID 1232 wrote to memory of 2012	1232	Explorer.EXE	37
PID 2012 wrote to memory of 2960	2012	ipconfig.exe	38
PID 2012 wrote to memory of 2960	2012	ipconfig.exe	38
PID 2012 wrote to memory of 2960	2012	ipconfig.exe	38
PID 2012 wrote to memory of 2960	2012	ipconfig.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gjspvjmvb.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gjspvjmvb.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2556
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\gjspvjmvb.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2164
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2572
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2560
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1884
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2340
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1628
- 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:2012
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2960

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/1232-6-0x0000000006F60000-0x00000000070D3000-memory.dmp

Filesize
1.4MB

Download
memory/1232-10-0x0000000006F60000-0x00000000070D3000-memory.dmp

Filesize
1.4MB

Download
memory/2012-8-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2012-7-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2012-9-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/2164-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2164-2-0x00000000021A0000-0x00000000024A3000-memory.dmp

Filesize
3.0MB

Download
memory/2164-5-0x0000000000230000-0x0000000000241000-memory.dmp

Filesize
68KB

Download
memory/2164-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2556-0-0x0000000074775000-0x0000000074777000-memory.dmp

Filesize
8KB

Download

Analysis

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