xloader | 7d9ccf7be546cdad2baab25c98336224ae050f477594647c9a8adf6b8700011a

General

Target

Trojan.Win32.FormBook.AR.exe
Size

524KB
MD5

e125cbe585e654316d5ab0c2a73bd830
SHA1

62bf4c0a8fbd8a30663e468cf865b1c6e5f5a7bc
SHA256

7d9ccf7be546cdad2baab25c98336224ae050f477594647c9a8adf6b8700011a
SHA512

57d6ae7a7b4c13d23f0ac17a1a684a81155a4e233a107fc275e5d901db70dd4d246f7f746852d4bf4bfd17c522f0ef7e666e983f766c04248b885e044dcc704c
SSDEEP

12288:X9pL8dQnSsG5u8j/cYRHFuVP32+8AEDuME4lbMIOy:X9pL8dQnSsG5umRHFKD8AED+ibMXy

Score

10^/10

xloader ma3c discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

ma3c

Decoy

bensimonconstructions.com

margaretta.info

getreireply.com

jamierighetti.com

gxjljc.com

internet-exerzitien.com

appetiteintelligence.com

buscar-id-apple.com

unique-bikinis.com

enclassique.com

dafontonline.com

northamericancarbonexchange.com

yashasvsaluja.com

sn-international.com

humanvitality.site

sarahcasias.com

xn--vrv276h3cb.com

curiget.xyz

anxietyattackscure.com

angelstonecrystals.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2336-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2336-2-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2336-6-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2728-16-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2076	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 2336 set thread context of 1148	2336	Trojan.Win32.FormBook.AR.exe	20
PID 2336 set thread context of 1148	2336	Trojan.Win32.FormBook.AR.exe	20
PID 2728 set thread context of 1148	2728	raserver.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	Trojan.Win32.FormBook.AR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.Win32.FormBook.AR.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2336	Trojan.Win32.FormBook.AR.exe
2336	Trojan.Win32.FormBook.AR.exe
2336	Trojan.Win32.FormBook.AR.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe
2728	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2336	Trojan.Win32.FormBook.AR.exe
2336	Trojan.Win32.FormBook.AR.exe
2336	Trojan.Win32.FormBook.AR.exe
2336	Trojan.Win32.FormBook.AR.exe
2728	raserver.exe
2728	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2336	Trojan.Win32.FormBook.AR.exe
Token: SeDebugPrivilege	2728	raserver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1756	Trojan.Win32.FormBook.AR.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 1756 wrote to memory of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 1756 wrote to memory of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 1756 wrote to memory of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 1756 wrote to memory of 2336	1756	Trojan.Win32.FormBook.AR.exe	31
PID 2336 wrote to memory of 2728	2336	Trojan.Win32.FormBook.AR.exe	32
PID 2336 wrote to memory of 2728	2336	Trojan.Win32.FormBook.AR.exe	32
PID 2336 wrote to memory of 2728	2336	Trojan.Win32.FormBook.AR.exe	32
PID 2336 wrote to memory of 2728	2336	Trojan.Win32.FormBook.AR.exe	32
PID 2728 wrote to memory of 2076	2728	raserver.exe	33
PID 2728 wrote to memory of 2076	2728	raserver.exe	33
PID 2728 wrote to memory of 2076	2728	raserver.exe	33
PID 2728 wrote to memory of 2076	2728	raserver.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1148
- C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1756
- - C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe"
    3⤵
    - 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:2336
  - - C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      4⤵
      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:2728
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2076

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/1148-7-0x0000000006430000-0x0000000006528000-memory.dmp

Filesize
992KB

Download
memory/1148-3-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1148-4-0x0000000006300000-0x0000000006428000-memory.dmp

Filesize
1.2MB

Download
memory/1148-8-0x0000000006300000-0x0000000006428000-memory.dmp

Filesize
1.2MB

Download
memory/1148-15-0x0000000006430000-0x0000000006528000-memory.dmp

Filesize
992KB

Download
memory/1756-0-0x0000000000442000-0x000000000044B000-memory.dmp

Filesize
36KB

Download
memory/2336-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2336-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2336-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2336-5-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/2728-14-0x0000000000AF0000-0x0000000000B0C000-memory.dmp

Filesize
112KB

Download
memory/2728-13-0x0000000000AF0000-0x0000000000B0C000-memory.dmp

Filesize
112KB

Download
memory/2728-16-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download

Analysis

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