xloader | 50dfbe912c4451dca1d1daa02787cbe79d43529b6013f626508cfa1eee5a8d2c

General

Target

RFQ_AP65425652_032421 urgentes,pdf.exe
Size

834KB
MD5

6324862ccd183522472fedbe3901d267
SHA1

46b1718671e662b34d903eb9acf2cc09ef893ff6
SHA256

1da66787bac6e2293792bf1f2d262c9d587b1fb63084ec6afff294b79c208014
SHA512

e69e3ef927121ba5c89270a2d7a1ce0f5b367ddac4fc7f3aecb32b47722083d3aa437995d7766f99138f172f30b628cc806f786b916a897bff3145db8c6943df
SSDEEP

24576:IehAesJPxtoGyiI7bMQVtbl1wm9YL44Mwv5N:IehAe0toGqbMQVtbl1wmuc4H

Score

10^/10

xloader pe0r discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

pe0r

Decoy

quickeasybites.com

idilecup.com

atelierdusalon.com

tigerking-safe.com

goinyourstrength.com

ssfgasia.com

halmanseger.com

hpcovn.com

thegodfatherricedealer.com

hzmsbg.com

trickswithwix.com

rbvctiu.com

spystoredevices.com

monlexiem.com

apt-forward.com

medsez.cloud

nanantz.com

kf350.com

ztvwgqjya.com

countingeverything.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/3992-9-0x0000000005FA0000-0x0000000005FAA000-memory.dmp	CustAttr

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4380-14-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4380-19-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4100-24-0x0000000000340000-0x0000000000369000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3992 set thread context of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 4380 set thread context of 3540	4380	RFQ_AP65425652_032421 urgentes,pdf.exe	56
PID 4100 set thread context of 3540	4100	NETSTAT.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	RFQ_AP65425652_032421 urgentes,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4100	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
3992	RFQ_AP65425652_032421 urgentes,pdf.exe
3992	RFQ_AP65425652_032421 urgentes,pdf.exe
3992	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE
4100	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4380	RFQ_AP65425652_032421 urgentes,pdf.exe
4100	NETSTAT.EXE
4100	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3992	RFQ_AP65425652_032421 urgentes,pdf.exe
Token: SeDebugPrivilege	4380	RFQ_AP65425652_032421 urgentes,pdf.exe
Token: SeDebugPrivilege	4100	NETSTAT.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3992 wrote to memory of 4380	3992	RFQ_AP65425652_032421 urgentes,pdf.exe	100
PID 3540 wrote to memory of 4100	3540	Explorer.EXE	101
PID 3540 wrote to memory of 4100	3540	Explorer.EXE	101
PID 3540 wrote to memory of 4100	3540	Explorer.EXE	101
PID 4100 wrote to memory of 2240	4100	NETSTAT.EXE	102
PID 4100 wrote to memory of 2240	4100	NETSTAT.EXE	102
PID 4100 wrote to memory of 2240	4100	NETSTAT.EXE	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\RFQ_AP65425652_032421 urgentes,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ_AP65425652_032421 urgentes,pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Users\Admin\AppData\Local\Temp\RFQ_AP65425652_032421 urgentes,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\RFQ_AP65425652_032421 urgentes,pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4380
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ_AP65425652_032421 urgentes,pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/3540-21-0x00000000089A0000-0x0000000008B3D000-memory.dmp

Filesize
1.6MB

Download
memory/3540-29-0x0000000007610000-0x00000000076BA000-memory.dmp

Filesize
680KB

Download
memory/3540-27-0x0000000007610000-0x00000000076BA000-memory.dmp

Filesize
680KB

Download
memory/3540-25-0x00000000089A0000-0x0000000008B3D000-memory.dmp

Filesize
1.6MB

Download
memory/3992-12-0x0000000008710000-0x00000000087C8000-memory.dmp

Filesize
736KB

Download
memory/3992-16-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3992-6-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3992-7-0x0000000005BF0000-0x0000000005C46000-memory.dmp

Filesize
344KB

Download
memory/3992-8-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3992-9-0x0000000005FA0000-0x0000000005FAA000-memory.dmp

Filesize
40KB

Download
memory/3992-10-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/3992-11-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/3992-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/3992-13-0x00000000016C0000-0x0000000001734000-memory.dmp

Filesize
464KB

Download
memory/3992-1-0x0000000000F60000-0x0000000001036000-memory.dmp

Filesize
856KB

Download
memory/3992-5-0x0000000005990000-0x000000000599A000-memory.dmp

Filesize
40KB

Download
memory/3992-2-0x00000000058A0000-0x000000000593C000-memory.dmp

Filesize
624KB

Download
memory/3992-3-0x0000000005FB0000-0x0000000006554000-memory.dmp

Filesize
5.6MB

Download
memory/3992-4-0x0000000005A00000-0x0000000005A92000-memory.dmp

Filesize
584KB

Download
memory/4100-23-0x0000000000600000-0x000000000060B000-memory.dmp

Filesize
44KB

Download
memory/4100-22-0x0000000000600000-0x000000000060B000-memory.dmp

Filesize
44KB

Download
memory/4100-24-0x0000000000340000-0x0000000000369000-memory.dmp

Filesize
164KB

Download
memory/4380-19-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4380-20-0x0000000000F00000-0x0000000000F11000-memory.dmp

Filesize
68KB

Download
memory/4380-17-0x0000000000FF0000-0x000000000133A000-memory.dmp

Filesize
3.3MB

Download
memory/4380-14-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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