xloader | 4de35ea5d1f54708e27e4806246a6c9d9b2217cfef24c7b2321a8f6026c5d98c

General

Target

$PLUGINSDIR/ztqv.dll
Size

32KB
MD5

97d84d39bb68b5a29e976b40d7d0a00c
SHA1

cf4c09487fffb9ace9ab6b82f33da0d5a851ef1c
SHA256

5b29c5ee49d9cdde15d88a9e4f8f6b4bba9e2dc4ec65c02d734726fe0f2952c8
SHA512

aab5b8831538f96c00e77f16349065bfaa93e7b25206a6d5fe0871f518f38ae31437f2f9f93f36f488e1869eaf97dd4697a282d726ce9a292cf4276242733546
SSDEEP

384:0ajTrn6tBFCu8OW5x8Yz7x4qTNe730g3ErkdjrNRKJNPqDuqYASKmIWoIVgQrz/L:0ajfEoVOUN2x3ErIrCNPmuVhIW9zf/L

Score

10^/10

xloader m5cw discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

m5cw

Decoy

stolpfabriken.com

aromaessentialco.com

rmcclaincpa.com

wuruixin.com

sidhyanticlasses.com

horilka.store

organic-outlaws.com

customsoftwarelogistics.com

cheryltesting.com

thecompacthomegym.com

the22yards.club

quickloanprovidersservices.com

grippyent.com

guard-usa.com

agircredit.com

classificationmetallurgie.com

quizzesandcode.com

catdanos.com

8676789.rest

gotbestshavlngplansforyou.com

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/2832-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2832-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2344-9-0x0000000000070000-0x0000000000099000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2832	2756	rundll32.exe	32
PID 2832 set thread context of 1188	2832	rundll32.exe	21
PID 2344 set thread context of 1188	2344	cscript.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	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2832	rundll32.exe
2832	rundll32.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe
2344	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2832	rundll32.exe
2832	rundll32.exe
2832	rundll32.exe
2344	cscript.exe
2344	cscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	rundll32.exe
Token: SeDebugPrivilege	2344	cscript.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2744 wrote to memory of 2756	2744	rundll32.exe	31
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 2756 wrote to memory of 2832	2756	rundll32.exe	32
PID 1188 wrote to memory of 2344	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2344	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2344	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2344	1188	Explorer.EXE	33
PID 2344 wrote to memory of 2788	2344	cscript.exe	34
PID 2344 wrote to memory of 2788	2344	cscript.exe	34
PID 2344 wrote to memory of 2788	2344	cscript.exe	34
PID 2344 wrote to memory of 2788	2344	cscript.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ztqv.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ztqv.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2756
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\ztqv.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2832
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:2344
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2788

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/1188-6-0x0000000007350000-0x00000000074D6000-memory.dmp

Filesize
1.5MB

Download
memory/1188-10-0x0000000007350000-0x00000000074D6000-memory.dmp

Filesize
1.5MB

Download
memory/2344-8-0x0000000000530000-0x0000000000552000-memory.dmp

Filesize
136KB

Download
memory/2344-7-0x0000000000530000-0x0000000000552000-memory.dmp

Filesize
136KB

Download
memory/2344-9-0x0000000000070000-0x0000000000099000-memory.dmp

Filesize
164KB

Download
memory/2756-0-0x0000000010008000-0x000000001000A000-memory.dmp

Filesize
8KB

Download
memory/2832-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2832-2-0x0000000002100000-0x0000000002403000-memory.dmp

Filesize
3.0MB

Download
memory/2832-5-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/2832-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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