xloader | 7d9ccf7be546cdad2baab25c98336224ae050f477594647c9a8adf6b8700011a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 08:42

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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 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1704-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1704-2-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4548-8-0x0000000000460000-0x0000000000489000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

flow	pid	Process
41	4548	rundll32.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3224 set thread context of 1704	3224	Trojan.Win32.FormBook.AR.exe	86
PID 1704 set thread context of 3612	1704	Trojan.Win32.FormBook.AR.exe	56
PID 4548 set thread context of 3612	4548	rundll32.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1704	Trojan.Win32.FormBook.AR.exe
1704	Trojan.Win32.FormBook.AR.exe
1704	Trojan.Win32.FormBook.AR.exe
1704	Trojan.Win32.FormBook.AR.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe
4548	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1704	Trojan.Win32.FormBook.AR.exe
1704	Trojan.Win32.FormBook.AR.exe
1704	Trojan.Win32.FormBook.AR.exe
4548	rundll32.exe
4548	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	Trojan.Win32.FormBook.AR.exe
Token: SeDebugPrivilege	4548	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3224	Trojan.Win32.FormBook.AR.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 1704	3224	Trojan.Win32.FormBook.AR.exe	86
PID 3224 wrote to memory of 1704	3224	Trojan.Win32.FormBook.AR.exe	86
PID 3224 wrote to memory of 1704	3224	Trojan.Win32.FormBook.AR.exe	86
PID 3224 wrote to memory of 1704	3224	Trojan.Win32.FormBook.AR.exe	86
PID 3612 wrote to memory of 4548	3612	Explorer.EXE	87
PID 3612 wrote to memory of 4548	3612	Explorer.EXE	87
PID 3612 wrote to memory of 4548	3612	Explorer.EXE	87
PID 4548 wrote to memory of 3076	4548	rundll32.exe	89
PID 4548 wrote to memory of 3076	4548	rundll32.exe	89
PID 4548 wrote to memory of 3076	4548	rundll32.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3612
- 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:3224
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1704
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Blocklisted process makes network request
  - 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:4548
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Trojan.Win32.FormBook.AR.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1704-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1704-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3224-0-0x0000000000442000-0x000000000044B000-memory.dmp

Filesize
36KB

Download
memory/3612-3-0x00000000080A0000-0x00000000081E2000-memory.dmp

Filesize
1.3MB

Download
memory/3612-9-0x00000000080A0000-0x00000000081E2000-memory.dmp

Filesize
1.3MB

Download
memory/3612-13-0x00000000081F0000-0x00000000082F4000-memory.dmp

Filesize
1.0MB

Download
memory/3612-14-0x00000000081F0000-0x00000000082F4000-memory.dmp

Filesize
1.0MB

Download
memory/4548-5-0x0000000000C00000-0x0000000000C14000-memory.dmp

Filesize
80KB

Download
memory/4548-7-0x0000000000C00000-0x0000000000C14000-memory.dmp

Filesize
80KB

Download
memory/4548-8-0x0000000000460000-0x0000000000489000-memory.dmp

Filesize
164KB

Download