xloader | 7716fec715a46b0eb4518d53703b0fc2186e6a473a876de7aee9155ec289f93a

General

Target

$PLUGINSDIR/hibvy.dll
Size

47KB
MD5

9381e2c18571e30359ade2d7f7b4c924
SHA1

e461e74f442f2539b9a6064b078f4bcc51829bdf
SHA256

ca8b8880222f1ebd8b4840c22b429a680fe93957effc1bc02817322229713f68
SHA512

21ca9702c8c3d04aeea5f0e8799503295883b02c26eb8f21f9eee8b07d1c67280be8d08e9c6f24c883ed6cef61bbd4c21bb9c0ceba4adefa57e77bb350ed9c52
SSDEEP

768:y975Ow3AxjNV1Qv0Sl3cHle0vzdKNnhx9YfVoltso9rxKGSQd9qKOb:y977mjNV100gWemz4dhTYfVoltso9rxO

Score

10^/10

xloader u3ja discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

u3ja

Decoy

emiratescomm.net

whattodotenerife.com

bspq-jlcd.com

torobesttanker.info

projectcentered.com

agglog.com

francesbypoppy.com

lakenormanpilates.net

chaseatms.com

bendarlingart.com

blogjust.xyz

wodeluzhou.com

p6ynwcxrxetb.biz

servpix.com

eddysearthmoving.com

rvafootcarenurses.com

contessa.store

jasonconcerttickets.com

umldbe.xyz

noroesteremotos.online

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/2716-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2716-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2720-10-0x00000000000B0000-0x00000000000D9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2716	2628	rundll32.exe	31
PID 2716 set thread context of 1268	2716	rundll32.exe	21
PID 2720 set thread context of 1268	2720	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
2716	rundll32.exe
2716	rundll32.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe
2720	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2716	rundll32.exe
2716	rundll32.exe
2716	rundll32.exe
2720	wlanext.exe
2720	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	rundll32.exe
Token: SeDebugPrivilege	2720	wlanext.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2228 wrote to memory of 2628	2228	rundll32.exe	30
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 2628 wrote to memory of 2716	2628	rundll32.exe	31
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	32
PID 1268 wrote to memory of 2720	1268	Explorer.EXE	32
PID 2720 wrote to memory of 2776	2720	wlanext.exe	33
PID 2720 wrote to memory of 2776	2720	wlanext.exe	33
PID 2720 wrote to memory of 2776	2720	wlanext.exe	33
PID 2720 wrote to memory of 2776	2720	wlanext.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hibvy.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hibvy.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2628
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hibvy.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2716
- 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:2720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2776

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/1268-7-0x0000000007430000-0x000000000754D000-memory.dmp

Filesize
1.1MB

Download
memory/1268-6-0x0000000002FB0000-0x00000000030B0000-memory.dmp

Filesize
1024KB

Download
memory/1268-11-0x0000000007430000-0x000000000754D000-memory.dmp

Filesize
1.1MB

Download
memory/1268-13-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2628-0-0x000000007455C000-0x000000007455E000-memory.dmp

Filesize
8KB

Download
memory/2716-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2716-2-0x0000000000BE0000-0x0000000000EE3000-memory.dmp

Filesize
3.0MB

Download
memory/2716-5-0x00000000001C0000-0x00000000001D1000-memory.dmp

Filesize
68KB

Download
memory/2716-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2720-9-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download
memory/2720-8-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download
memory/2720-10-0x00000000000B0000-0x00000000000D9000-memory.dmp

Filesize
164KB

Download

Analysis

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