xloader | c74bf1b4c0ffc5f4606080565ccb160bff27a505c468730e0d833f363494970c

General

Target

INVPRF2100114_pdf.exe
Size

412KB
MD5

08be9eb13ce48889a767c1faf80fc855
SHA1

4f8c369ff1be2d9e02594b971ee24f4a2c8e18c9
SHA256

7b5de7135bd7e3c2eb98a94977c138597d357def8a9851a8df3ee442f83ec737
SHA512

5ccbdf445507b85c5b4595b430e26b5306d30abfe60047f5d2438a3294013a93cbf8d1136ab009b1cda87a5f662fb8ca5683a11ecb60a9636a0c2155c6d9d3b4

Score

10^/10

xloader euzn loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

euzn

C2

http://www.heser.net/euzn/

Decoy

235296tyc.com

gold12guide.art

baibuaherb.com

weberwines.tax

chezvitoria.com

aidenb.tech

pitchdeckservice.com

surgeryforfdf.xyz

workunvaccinated.com

hrtaro.com

yourotcs.com

sonimultispecialityclinic.com

consultantadvisors.com

pentesting-consulting.com

dantechs.digital

longshifa.online

taweilai.net

imyusuke.com

cashndashfinancial.com

fasiglimt.quest

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1328-60-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1328-61-0x000000000041D420-mapping.dmp	xloader
behavioral1/memory/1136-69-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1828 cmd.exe

pid	process
1828	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

INVPRF2100114_pdf.exeINVPRF2100114_pdf.exehelp.exe

description	pid	process	target process
PID 1256 set thread context of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1328 set thread context of 1244	1328	INVPRF2100114_pdf.exe	Explorer.EXE
PID 1136 set thread context of 1244	1136	help.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

INVPRF2100114_pdf.exehelp.exe

pid	process
1328	INVPRF2100114_pdf.exe
1328	INVPRF2100114_pdf.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe
1136	help.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

INVPRF2100114_pdf.exehelp.exe

pid process

1328 INVPRF2100114_pdf.exe
1328 INVPRF2100114_pdf.exe
1328 INVPRF2100114_pdf.exe
1136 help.exe
1136 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INVPRF2100114_pdf.exehelp.exe

description pid process

Token: SeDebugPrivilege 1328 INVPRF2100114_pdf.exe
Token: SeDebugPrivilege 1136 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1244 Explorer.EXE
1244 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1244 Explorer.EXE
1244 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1328	INVPRF2100114_pdf.exe
Token: SeDebugPrivilege	1136	help.exe

pid	process
1244	Explorer.EXE
1244	Explorer.EXE

pid	process
1244	Explorer.EXE
1244	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

INVPRF2100114_pdf.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1256 wrote to memory of 1328	1256	INVPRF2100114_pdf.exe	INVPRF2100114_pdf.exe
PID 1244 wrote to memory of 1136	1244	Explorer.EXE	help.exe
PID 1244 wrote to memory of 1136	1244	Explorer.EXE	help.exe
PID 1244 wrote to memory of 1136	1244	Explorer.EXE	help.exe
PID 1244 wrote to memory of 1136	1244	Explorer.EXE	help.exe
PID 1136 wrote to memory of 1828	1136	help.exe	cmd.exe
PID 1136 wrote to memory of 1828	1136	help.exe	cmd.exe
PID 1136 wrote to memory of 1828	1136	help.exe	cmd.exe
PID 1136 wrote to memory of 1828	1136	help.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:1244

C:\Users\Admin\AppData\Local\Temp\INVPRF2100114_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INVPRF2100114_pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1256

C:\Users\Admin\AppData\Local\Temp\INVPRF2100114_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INVPRF2100114_pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1328

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1880

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:540

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1300

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1832

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:552

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\INVPRF2100114_pdf.exe"
3⤵
- Deletes itself
PID:1828

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1136-66-0x0000000000000000-mapping.dmp

Download
memory/1136-71-0x00000000002D0000-0x0000000000360000-memory.dmp

Filesize
576KB

Download
memory/1136-70-0x0000000000920000-0x0000000000C23000-memory.dmp

Filesize
3.0MB

Download
memory/1136-68-0x0000000000910000-0x0000000000916000-memory.dmp

Filesize
24KB

Download
memory/1136-69-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1244-72-0x0000000003D10000-0x0000000003DBE000-memory.dmp

Filesize
696KB

Download
memory/1244-65-0x0000000006260000-0x00000000063F8000-memory.dmp

Filesize
1.6MB

Download
memory/1256-55-0x0000000001050000-0x0000000001051000-memory.dmp

Filesize
4KB

Download
memory/1256-56-0x0000000000520000-0x000000000052A000-memory.dmp

Filesize
40KB

Download
memory/1256-57-0x0000000001120000-0x000000000116B000-memory.dmp

Filesize
300KB

Download
memory/1256-53-0x0000000001170000-0x0000000001171000-memory.dmp

Filesize
4KB

Download
memory/1328-62-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/1328-64-0x0000000000150000-0x0000000000161000-memory.dmp

Filesize
68KB

Download
memory/1328-61-0x000000000041D420-mapping.dmp

Download
memory/1328-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1328-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1328-58-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1828-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads