xloader | 6bdea0ba8978cd3080b6e1adb3dec027d9e6d74586b4afe88ec6744f77977918

General

Target

$PLUGINSDIR/qhcv.dll
Size

39KB
MD5

6d70c6175a3d7e78b967d0f8f349a17c
SHA1

35c22d80df2112aae34e567b6e28a3d969f23e3b
SHA256

1e22878a69afeffc681adfcb5fbb6772821bafccd966b72da2e3ba195595b735
SHA512

6472e91780238b1f47c86c5d32e238252b840619477c5c27654b99b617af123d30eb4d64336e79cb65bca6e1878c6b9d6375148b0e68ccb178c4893023eb87d2
SSDEEP

768:JMsHUlNQ80Ocx0P7+r/ti86Zs7sTHXryAm/u49o2PjK4tqPAyck5x7VCSWfNKAnr:zhxOWrODIYASRCSWfUk0H7ZJTS

Score

10^/10

xloader b2c0 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.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/2492-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2492-9-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2512-17-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2080 set thread context of 2492	2080	rundll32.exe	32
PID 2492 set thread context of 1152	2492	rundll32.exe	20
PID 2512 set thread context of 1152	2512	rundll32.exe	20

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2492	rundll32.exe
2492	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2080	rundll32.exe
2492	rundll32.exe
2492	rundll32.exe
2492	rundll32.exe
2512	rundll32.exe
2512	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	rundll32.exe
Token: SeDebugPrivilege	2512	rundll32.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 1224 wrote to memory of 2080	1224	rundll32.exe	31
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 2080 wrote to memory of 2492	2080	rundll32.exe	32
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 1152 wrote to memory of 2512	1152	Explorer.EXE	33
PID 2512 wrote to memory of 2652	2512	rundll32.exe	34
PID 2512 wrote to memory of 2652	2512	rundll32.exe	34
PID 2512 wrote to memory of 2652	2512	rundll32.exe	34
PID 2512 wrote to memory of 2652	2512	rundll32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\qhcv.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\qhcv.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2080
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\qhcv.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2492
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2512
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2652

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/1152-11-0x0000000000160000-0x0000000000260000-memory.dmp

Filesize
1024KB

Download
memory/1152-18-0x0000000006300000-0x00000000063E6000-memory.dmp

Filesize
920KB

Download
memory/1152-12-0x0000000006300000-0x00000000063E6000-memory.dmp

Filesize
920KB

Download
memory/2080-1-0x0000000074880000-0x000000007488E000-memory.dmp

Filesize
56KB

Download
memory/2080-3-0x0000000074890000-0x000000007489E000-memory.dmp

Filesize
56KB

Download
memory/2080-2-0x0000000074870000-0x000000007487E000-memory.dmp

Filesize
56KB

Download
memory/2080-0-0x0000000074890000-0x000000007489E000-memory.dmp

Filesize
56KB

Download
memory/2080-6-0x0000000074870000-0x000000007487E000-memory.dmp

Filesize
56KB

Download
memory/2080-5-0x0000000074890000-0x000000007489E000-memory.dmp

Filesize
56KB

Download
memory/2492-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2492-10-0x0000000000160000-0x0000000000171000-memory.dmp

Filesize
68KB

Download
memory/2492-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2492-7-0x0000000000BD0000-0x0000000000ED3000-memory.dmp

Filesize
3.0MB

Download
memory/2512-16-0x0000000000760000-0x000000000076E000-memory.dmp

Filesize
56KB

Download
memory/2512-14-0x0000000000760000-0x000000000076E000-memory.dmp

Filesize
56KB

Download
memory/2512-13-0x0000000000760000-0x000000000076E000-memory.dmp

Filesize
56KB

Download
memory/2512-17-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download

Analysis

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