xloader | c866bebd7ff21337ee973db5078bc7635170f994a7d6c9520a88f8313e4cbd0e

General

Target

PI 4717_PDF.exe
Size

306KB
MD5

c14625cddc83ab7cc4d5bf559bb0b519
SHA1

75d857ed93cb4c5ba2e2ec6c546e49c1695aac2a
SHA256

acbc73c81f446276bb0110ac2a5d902d928556adcac4ed41fecff6671c818bfa
SHA512

faa37131339a22782b4c5023c70d506dc8be0d19f44a1a33380c06670e5d15c93defa94254a2e7a7ca9e62d2693950cde4a3226ebd22b9ed757552618ef7250f
SSDEEP

6144:rGi1YPNjmC4errA4LgFYRBvtCJ+DJgfRheS6tD4glttwcTTaTvzsErsZNC3azW:JOrrnLgFaBvtCZfRMTLaT76qH

Score

10^/10

xloader b4t9 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b4t9

Decoy

grannyh.com

spacexevent.online

hukuimaru.com

28685dw.com

butuns.com

tobiasqbrown.com

phrecruiters.com

comparativeliterature.info

cncfpro.com

kmcoti.com

jjcward.xyz

deadpangomtnu.xyz

hbbforyou.com

urbanvelites.com

neatsea.net

reyuzed.com

desenhandomagias.com

ecoecor.com

purusbontanics.com

deltavariant.tech

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2604-9-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2604-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2696-18-0x00000000000B0000-0x00000000000D9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2464	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2132	PI 4717_PDF.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 2604	2132	PI 4717_PDF.exe	28
PID 2604 set thread context of 1080	2604	PI 4717_PDF.exe	18
PID 2696 set thread context of 1080	2696	wscript.exe	18

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	PI 4717_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2604	PI 4717_PDF.exe
2604	PI 4717_PDF.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe
2696	wscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2604	PI 4717_PDF.exe
2604	PI 4717_PDF.exe
2604	PI 4717_PDF.exe
2696	wscript.exe
2696	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	PI 4717_PDF.exe
Token: SeDebugPrivilege	2696	wscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 2132 wrote to memory of 2604	2132	PI 4717_PDF.exe	28
PID 1080 wrote to memory of 2696	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2696	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2696	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2696	1080	Explorer.EXE	29
PID 2696 wrote to memory of 2464	2696	wscript.exe	30
PID 2696 wrote to memory of 2464	2696	wscript.exe	30
PID 2696 wrote to memory of 2464	2696	wscript.exe	30
PID 2696 wrote to memory of 2464	2696	wscript.exe	30

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2604
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:2696
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PI 4717_PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

\Users\Admin\AppData\Local\Temp\nsd4876.tmp\yeorkzn.dll

Filesize
134KB

MD5
de4cd82a7d5710c0920e65426ca69cdc

SHA1
f6f2644a63dfaca5e87d72f9b5bbabb88ac4b716

SHA256
7f9b3f353d52281a4c811baf32c963950139aaac91c34dd02da510eb8fcdf330

SHA512
e4b8941eaaf2d4260fc3ea7aa84196d473b6e6ebff3e253bfe1c899f3f97803d98554abf52af85c84a6278e58f06573726a0f80ede272dd6eb38c8de4bee1bbf

Download Submit
memory/1080-12-0x0000000004CE0000-0x0000000004E27000-memory.dmp

Filesize
1.3MB

Download
memory/1080-19-0x0000000004CE0000-0x0000000004E27000-memory.dmp

Filesize
1.3MB

Download
memory/2132-6-0x0000000010000000-0x0000000010026000-memory.dmp

Filesize
152KB

Download
memory/2132-17-0x0000000010000000-0x0000000010026000-memory.dmp

Filesize
152KB

Download
memory/2604-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2604-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2696-16-0x0000000000460000-0x0000000000486000-memory.dmp

Filesize
152KB

Download
memory/2696-15-0x0000000000460000-0x0000000000486000-memory.dmp

Filesize
152KB

Download
memory/2696-18-0x00000000000B0000-0x00000000000D9000-memory.dmp

Filesize
164KB

Download

Analysis

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