xloader | 751c188a6867f7e56cd158413f41043fc6bab96b66c241d8b58d60e3222a19cc

General

Target

$PLUGINSDIR/nbcnvvhhow.dll
Size

20KB
MD5

967aaecddf0e31f0de8582942a26d086
SHA1

1ca5be0f614bb4db3608dfc0f549e5cf83442164
SHA256

de93a37794cf18a166c2a36646997ab128da7cd6b5b540f6f596de537bcde8ef
SHA512

bfd279d0ceea9f5e70466977989d89cf2885eca8713c63885ad2cac32e3030eb87a3237c71191448f6c026222a3bfb61a47944b2fd548f393bcc1a4313191a66
SSDEEP

384:QAMYwn4GqWlh1i9E8LB2T35YjzYDYp0fRBtsoudoq0rH+eNyp:QArwnskhU6tTuYkpoudoPty

Score

10^/10

xloader d5tt discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

d5tt

Decoy

air-bas.com

index1.one

liceist.com

racuch.com

slav-net.store

mermadekusse.store

tccaponline.online

thetalkzone.com

victoriajayde.com

wellbosoft.com

supericehockey.pro

empiredigitalweednews.com

veloci-cloud.com

all-blocks.com

malagainvestments.com

wildgiantelephant.online

surveyplatform.net

missinggate.com

cnonwovens.net

winecountryexcursions.store

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/2408-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2408-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2276-10-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2532 set thread context of 2408	2532	rundll32.exe	31
PID 2408 set thread context of 1200	2408	rundll32.exe	21
PID 2276 set thread context of 1200	2276	wlanext.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2408	rundll32.exe
2408	rundll32.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe
2276	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2408	rundll32.exe
2408	rundll32.exe
2408	rundll32.exe
2276	wlanext.exe
2276	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	rundll32.exe
Token: SeDebugPrivilege	2276	wlanext.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2260 wrote to memory of 2532	2260	rundll32.exe	30
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 2532 wrote to memory of 2408	2532	rundll32.exe	31
PID 1200 wrote to memory of 2276	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2276	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2276	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2276	1200	Explorer.EXE	32
PID 2276 wrote to memory of 2104	2276	wlanext.exe	33
PID 2276 wrote to memory of 2104	2276	wlanext.exe	33
PID 2276 wrote to memory of 2104	2276	wlanext.exe	33
PID 2276 wrote to memory of 2104	2276	wlanext.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nbcnvvhhow.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2260
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nbcnvvhhow.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2532
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nbcnvvhhow.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2408
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:2276
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2104

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/1200-7-0x0000000004700000-0x00000000047D2000-memory.dmp

Filesize
840KB

Download
memory/1200-6-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1200-11-0x0000000004700000-0x00000000047D2000-memory.dmp

Filesize
840KB

Download
memory/2276-9-0x00000000000A0000-0x00000000000B6000-memory.dmp

Filesize
88KB

Download
memory/2276-8-0x00000000000A0000-0x00000000000B6000-memory.dmp

Filesize
88KB

Download
memory/2276-10-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/2408-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2408-2-0x0000000002180000-0x0000000002483000-memory.dmp

Filesize
3.0MB

Download
memory/2408-5-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/2408-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2532-0-0x0000000000160000-0x0000000000162000-memory.dmp

Filesize
8KB

Download

Analysis

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