xloader | 085e90b23a737568217705115a4766b9a0a42c8335337057f6bb9164db83c64d

General

Target

PAYMENT.exe
Size

1.1MB
MD5

d639a70d7bb8cd136bc920a15ac2a5fa
SHA1

4ca0f11ba335654fe8d7dfab478202eb3d90e337
SHA256

d3e580c4794a5e5e50f2334e3ecba635ed049952c30be08f283a72e299f64f8b
SHA512

9a5c45f99c7e02a6965f413c3df9ca6408c24e0bfb934595199a04f899ce4bb02cfd3288b845cf20dc664476a889dc32c5f7571f07acdac93aca3308a157759e
SSDEEP

24576:/Fozo5ztlrUM4QgKtGoIay1vcrP0lPn1/0S+7n4SYtqChJ+hu3A8K/dwiGY1iQSQ:/wojljIKzIa+crceGP

Score

10^/10

xloader f4ut discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

f4ut

Decoy

studiokventura.com

rmnslashes.com

oklahomapropertybuyersllc.com

pmfce.net

yingkuncy.com

theailearning.com

artistic1cleaning.com

shqinyue.com

dentaldunya.com

karatuhotel.com

renttoownhomephoenix.com

0087wt.com

hotelsearchkwnet.com

dentavangart.com

98700l.com

seattleproducecompany.com

magicparadigm.com

cunix88.com

vr646.com

calmonleiloes.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4172-13-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4172-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4172-22-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3912-28-0x0000000000850000-0x0000000000879000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2056 set thread context of 4172	2056	PAYMENT.exe	91
PID 4172 set thread context of 3360	4172	PAYMENT.exe	56
PID 4172 set thread context of 3360	4172	PAYMENT.exe	56
PID 3912 set thread context of 3360	3912	msdt.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	PAYMENT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe
3912	msdt.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
4172	PAYMENT.exe
3912	msdt.exe
3912	msdt.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	PAYMENT.exe
Token: SeDebugPrivilege	4172	PAYMENT.exe
Token: SeDebugPrivilege	3912	msdt.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 2056 wrote to memory of 4172	2056	PAYMENT.exe	91
PID 3360 wrote to memory of 3912	3360	Explorer.EXE	92
PID 3360 wrote to memory of 3912	3360	Explorer.EXE	92
PID 3360 wrote to memory of 3912	3360	Explorer.EXE	92
PID 3912 wrote to memory of 4640	3912	msdt.exe	93
PID 3912 wrote to memory of 4640	3912	msdt.exe	93
PID 3912 wrote to memory of 4640	3912	msdt.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe
    "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4172
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:3912
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PAYMENT.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4640

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/2056-15-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2056-4-0x0000000004BF0000-0x0000000004C82000-memory.dmp

Filesize
584KB

Download
memory/2056-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2056-3-0x00000000051A0000-0x0000000005744000-memory.dmp

Filesize
5.6MB

Download
memory/2056-11-0x000000000A7C0000-0x000000000A83A000-memory.dmp

Filesize
488KB

Download
memory/2056-5-0x0000000004B20000-0x0000000004B2A000-memory.dmp

Filesize
40KB

Download
memory/2056-6-0x0000000004E20000-0x0000000004E76000-memory.dmp

Filesize
344KB

Download
memory/2056-7-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2056-8-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2056-9-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2056-10-0x0000000004D80000-0x0000000004DB6000-memory.dmp

Filesize
216KB

Download
memory/2056-1-0x0000000000010000-0x0000000000128000-memory.dmp

Filesize
1.1MB

Download
memory/2056-12-0x00000000006E0000-0x0000000000712000-memory.dmp

Filesize
200KB

Download
memory/2056-2-0x0000000004B50000-0x0000000004BEC000-memory.dmp

Filesize
624KB

Download
memory/3360-25-0x00000000024F0000-0x000000000265B000-memory.dmp

Filesize
1.4MB

Download
memory/3360-20-0x00000000024F0000-0x000000000265B000-memory.dmp

Filesize
1.4MB

Download
memory/3360-33-0x0000000008200000-0x0000000008324000-memory.dmp

Filesize
1.1MB

Download
memory/3360-24-0x0000000007A00000-0x0000000007B49000-memory.dmp

Filesize
1.3MB

Download
memory/3360-32-0x0000000008200000-0x0000000008324000-memory.dmp

Filesize
1.1MB

Download
memory/3360-29-0x0000000007A00000-0x0000000007B49000-memory.dmp

Filesize
1.3MB

Download
memory/3912-26-0x0000000000CD0000-0x0000000000D27000-memory.dmp

Filesize
348KB

Download
memory/3912-27-0x0000000000CD0000-0x0000000000D27000-memory.dmp

Filesize
348KB

Download
memory/3912-28-0x0000000000850000-0x0000000000879000-memory.dmp

Filesize
164KB

Download
memory/4172-19-0x0000000000E30000-0x0000000000E41000-memory.dmp

Filesize
68KB

Download
memory/4172-22-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4172-23-0x0000000000EA0000-0x0000000000EB1000-memory.dmp

Filesize
68KB

Download
memory/4172-13-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4172-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4172-16-0x0000000000F30000-0x000000000127A000-memory.dmp

Filesize
3.3MB

Download

Analysis

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