xloader | 3dafcb39d7cc251c9a8212a8e745e0d72f2c530bf699a9168a379fa25e36ec38

General

Target

RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Size

417KB
MD5

a30b50f5e2ea1a2d8c6bdf581e97d478
SHA1

9943026649061e28fe7fd626b6d3e1c893131779
SHA256

3dafcb39d7cc251c9a8212a8e745e0d72f2c530bf699a9168a379fa25e36ec38
SHA512

548ca8b3f795c32ff30d4f4810e78c6a0bb2aecf42a4bc56632612b2ab5595d9d4d3fd364b6c9bcca80135f1459f7243edc020a2b61bb3b1bce04d43d79a8088

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
behavioral2/memory/3844-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3844-126-0x000000000041D420-mapping.dmp	xloader
behavioral2/memory/2612-133-0x0000000002E10000-0x0000000002E39000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execscript.exe

description	pid	process	target process
PID 2412 set thread context of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 3844 set thread context of 392	3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	Explorer.EXE
PID 2612 set thread context of 392	2612	cscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execscript.exe

pid	process
2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe
2612	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

392 Explorer.EXE

pid	process
392	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.execscript.exe

pid	process
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2612	cscript.exe
2612	cscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execscript.exe

description	pid	process
Token: SeDebugPrivilege	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	3844	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	2612	cscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeExplorer.EXEcscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:392

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
3⤵
PID:3752

C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3844

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
3⤵
PID:3348

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/392-136-0x0000000002660000-0x0000000002721000-memory.dmp

Filesize
772KB

Download
memory/392-129-0x0000000005F40000-0x00000000060BD000-memory.dmp

Filesize
1.5MB

Download
memory/2412-120-0x0000000007990000-0x0000000007991000-memory.dmp

Filesize
4KB

Download
memory/2412-118-0x0000000005590000-0x0000000005591000-memory.dmp

Filesize
4KB

Download
memory/2412-115-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

Filesize
4KB

Download
memory/2412-121-0x00000000057A0000-0x00000000057A4000-memory.dmp

Filesize
16KB

Download
memory/2412-122-0x00000000054F0000-0x00000000059EE000-memory.dmp

Filesize
5.0MB

Download
memory/2412-123-0x0000000007D40000-0x0000000007D9C000-memory.dmp

Filesize
368KB

Download
memory/2412-124-0x0000000007DA0000-0x0000000007DCC000-memory.dmp

Filesize
176KB

Download
memory/2412-119-0x0000000005580000-0x0000000005581000-memory.dmp

Filesize
4KB

Download
memory/2412-117-0x00000000059F0000-0x00000000059F1000-memory.dmp

Filesize
4KB

Download
memory/2612-132-0x00000000008C0000-0x00000000008E7000-memory.dmp

Filesize
156KB

Download
memory/2612-135-0x0000000004B70000-0x0000000004C00000-memory.dmp

Filesize
576KB

Download
memory/2612-134-0x0000000004D10000-0x0000000005030000-memory.dmp

Filesize
3.1MB

Download
memory/2612-130-0x0000000000000000-mapping.dmp

Download
memory/2612-133-0x0000000002E10000-0x0000000002E39000-memory.dmp

Filesize
164KB

Download
memory/3348-131-0x0000000000000000-mapping.dmp

Download
memory/3844-128-0x00000000010D0000-0x00000000010E1000-memory.dmp

Filesize
68KB

Download
memory/3844-127-0x00000000011F0000-0x0000000001510000-memory.dmp

Filesize
3.1MB

Download
memory/3844-126-0x000000000041D420-mapping.dmp

Download
memory/3844-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

description	pid	process	target process
PID 2412 wrote to memory of 3752	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3752	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3752	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2412 wrote to memory of 3844	2412	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 392 wrote to memory of 2612	392	Explorer.EXE	cscript.exe
PID 392 wrote to memory of 2612	392	Explorer.EXE	cscript.exe
PID 392 wrote to memory of 2612	392	Explorer.EXE	cscript.exe
PID 2612 wrote to memory of 3348	2612	cscript.exe	cmd.exe
PID 2612 wrote to memory of 3348	2612	cscript.exe	cmd.exe
PID 2612 wrote to memory of 3348	2612	cscript.exe	cmd.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads