xloader | f1f2892cd08386e6af2477ff8340a60afb66ac66509e660c76818ea721c7fe6a

General

Target

audio.exe
Size

500KB
MD5

4b311f7098e8c26618b8c2c7366282f4
SHA1

816f73aa214c87fe2704dc8c6a9831f18969ca9b
SHA256

f1f2892cd08386e6af2477ff8340a60afb66ac66509e660c76818ea721c7fe6a
SHA512

da874e66b92be42ec1d2104fe44d8e09383f6aebb192777c105dbbb5899e6f40a7a851791229ee0bdf9d880af50adfe67d60327c6f6ee22a33b096042affec15

Score

10^/10

xloader pufi loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

pufi

C2

http://www.homestechs.com/pufi/

Decoy

fusiongroupgames.net

hugevari.com

rebeccagriffiths.com

trocaoferta.com

theslashapp.com

codezonesoftware.xyz

sottocommunications.com

minicreators.online

course2millions.com

hfm5n1dhkjqwpe.xyz

xlab-ub.com

silvanaribeirocake.com

thefabinteriordesign.com

mg-leadership.com

petbort.com

ndust.net

203040302.xyz

jakital.com

shophuunghia.info

rednacionaldejuecesrd.net

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1400-61-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1400-62-0x000000000041D450-mapping.dmp	xloader
behavioral1/memory/1400-67-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/612-74-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1152 cmd.exe

pid	process
1152	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

audio.exeaudio.exeraserver.exe

description	pid	process	target process
PID 676 set thread context of 1400	676	audio.exe	audio.exe
PID 1400 set thread context of 1388	1400	audio.exe	Explorer.EXE
PID 1400 set thread context of 1388	1400	audio.exe	Explorer.EXE
PID 612 set thread context of 1388	612	raserver.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

audio.exeraserver.exe

pid	process
1400	audio.exe
1400	audio.exe
1400	audio.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe
612	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

audio.exeraserver.exe

pid process

1400 audio.exe
1400 audio.exe
1400 audio.exe
1400 audio.exe
612 raserver.exe
612 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

audio.exeraserver.exe

description pid process

Token: SeDebugPrivilege 1400 audio.exe
Token: SeDebugPrivilege 612 raserver.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1388 Explorer.EXE
1388 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1400	audio.exe
Token: SeDebugPrivilege	612	raserver.exe

pid	process
1388	Explorer.EXE
1388	Explorer.EXE

pid	process
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

audio.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 676 wrote to memory of 1400	676	audio.exe	audio.exe
PID 1388 wrote to memory of 612	1388	Explorer.EXE	raserver.exe
PID 1388 wrote to memory of 612	1388	Explorer.EXE	raserver.exe
PID 1388 wrote to memory of 612	1388	Explorer.EXE	raserver.exe
PID 1388 wrote to memory of 612	1388	Explorer.EXE	raserver.exe
PID 612 wrote to memory of 1152	612	raserver.exe	cmd.exe
PID 612 wrote to memory of 1152	612	raserver.exe	cmd.exe
PID 612 wrote to memory of 1152	612	raserver.exe	cmd.exe
PID 612 wrote to memory of 1152	612	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1388

C:\Users\Admin\AppData\Local\Temp\audio.exe
"C:\Users\Admin\AppData\Local\Temp\audio.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:676

C:\Users\Admin\AppData\Local\Temp\audio.exe
"C:\Users\Admin\AppData\Local\Temp\audio.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1400

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:612

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\audio.exe"
3⤵
- Deletes itself
PID:1152

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/612-70-0x0000000000000000-mapping.dmp

Download
memory/612-76-0x00000000008E0000-0x0000000000970000-memory.dmp

Filesize
576KB

Download
memory/612-75-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/612-74-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/612-73-0x0000000000D60000-0x0000000000D7C000-memory.dmp

Filesize
112KB

Download
memory/612-71-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/676-56-0x0000000000410000-0x0000000000417000-memory.dmp

Filesize
28KB

Download
memory/676-57-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

Filesize
4KB

Download
memory/676-58-0x0000000001FF0000-0x000000000203A000-memory.dmp

Filesize
296KB

Download
memory/676-54-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/1152-72-0x0000000000000000-mapping.dmp

Download
memory/1388-66-0x0000000006B80000-0x0000000006CC0000-memory.dmp

Filesize
1.2MB

Download
memory/1388-69-0x0000000006CC0000-0x0000000006E2C000-memory.dmp

Filesize
1.4MB

Download
memory/1388-77-0x0000000004320000-0x00000000043DD000-memory.dmp

Filesize
756KB

Download
memory/1400-68-0x00000000002D0000-0x00000000002E1000-memory.dmp

Filesize
68KB

Download
memory/1400-67-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1400-64-0x0000000000B60000-0x0000000000E63000-memory.dmp

Filesize
3.0MB

Download
memory/1400-65-0x0000000000290000-0x00000000002A1000-memory.dmp

Filesize
68KB

Download
memory/1400-62-0x000000000041D450-mapping.dmp

Download
memory/1400-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1400-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1400-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads