xloader | 662ae2a76488e0f775884f0c19daa286c910f2e72acb414a5f820b655ef42565

General

Target

RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Size

757KB
MD5

662ccb9b69a33a02460b368c77b17f04
SHA1

9c61fbf1b27de772aebde4825a66b6da8bbf7517
SHA256

662ae2a76488e0f775884f0c19daa286c910f2e72acb414a5f820b655ef42565
SHA512

86f125976f1ef582afa3dbd289e2a369a14ae940401dd967bb9c5e262a53a1479bda3dad2a268f659eb901aabe3e4759c20c6968d0d1f2b9517b4577850b1fbb

Score

10^/10

xloader euzn loader rat

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3040-127-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3040-128-0x000000000041D420-mapping.dmp	xloader
behavioral2/memory/3392-134-0x0000000000830000-0x0000000000859000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

cmstp.exe

flow pid process

25 3392 cmstp.exe

flow	pid	process
25	3392	cmstp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

description	pid	process	target process
PID 2056 set thread context of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 3040 set thread context of 3028	3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	Explorer.EXE
PID 3392 set thread context of 3028	3392	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

pid	process
2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe
3392	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3028 Explorer.EXE

pid	process
3028	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

pid	process
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
3392	cmstp.exe
3392	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeRFQ_Beijing Chengruisi Manufacturing_pdf.execmstp.exe

description	pid	process
Token: SeDebugPrivilege	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	3040	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
Token: SeDebugPrivilege	3392	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

RFQ_Beijing Chengruisi Manufacturing_pdf.exeExplorer.EXEcmstp.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3028

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:2056

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:4072

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:2720

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:3040

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3392

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ_Beijing Chengruisi Manufacturing_pdf.exe"
3⤵
PID:3684

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2056-126-0x00000000081E0000-0x000000000821A000-memory.dmp

Filesize
232KB

Download
memory/2056-117-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/2056-115-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/2056-119-0x0000000005340000-0x0000000005341000-memory.dmp

Filesize
4KB

Download
memory/2056-120-0x0000000005B50000-0x0000000005B51000-memory.dmp

Filesize
4KB

Download
memory/2056-121-0x0000000005600000-0x0000000005601000-memory.dmp

Filesize
4KB

Download
memory/2056-122-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

Filesize
4KB

Download
memory/2056-123-0x0000000007BC0000-0x0000000007BDD000-memory.dmp

Filesize
116KB

Download
memory/2056-124-0x0000000007F00000-0x0000000007F01000-memory.dmp

Filesize
4KB

Download
memory/2056-125-0x0000000008150000-0x00000000081BA000-memory.dmp

Filesize
424KB

Download
memory/2056-118-0x00000000051F0000-0x00000000051F1000-memory.dmp

Filesize
4KB

Download
memory/3028-138-0x0000000005610000-0x0000000005739000-memory.dmp

Filesize
1.2MB

Download
memory/3028-131-0x0000000002D70000-0x0000000002E3E000-memory.dmp

Filesize
824KB

Download
memory/3040-128-0x000000000041D420-mapping.dmp

Download
memory/3040-130-0x00000000010E0000-0x00000000010F1000-memory.dmp

Filesize
68KB

Download
memory/3040-129-0x0000000001180000-0x00000000014A0000-memory.dmp

Filesize
3.1MB

Download
memory/3040-127-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3392-132-0x0000000000000000-mapping.dmp

Download
memory/3392-134-0x0000000000830000-0x0000000000859000-memory.dmp

Filesize
164KB

Download
memory/3392-133-0x0000000000A30000-0x0000000000A46000-memory.dmp

Filesize
88KB

Download
memory/3392-136-0x0000000004990000-0x0000000004CB0000-memory.dmp

Filesize
3.1MB

Download
memory/3392-137-0x00000000046E0000-0x0000000004770000-memory.dmp

Filesize
576KB

Download
memory/3684-135-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 2056 wrote to memory of 4072	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 4072	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 4072	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 2720	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 2720	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 2720	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 2056 wrote to memory of 3040	2056	RFQ_Beijing Chengruisi Manufacturing_pdf.exe	RFQ_Beijing Chengruisi Manufacturing_pdf.exe
PID 3028 wrote to memory of 3392	3028	Explorer.EXE	cmstp.exe
PID 3028 wrote to memory of 3392	3028	Explorer.EXE	cmstp.exe
PID 3028 wrote to memory of 3392	3028	Explorer.EXE	cmstp.exe
PID 3392 wrote to memory of 3684	3392	cmstp.exe	cmd.exe
PID 3392 wrote to memory of 3684	3392	cmstp.exe	cmd.exe
PID 3392 wrote to memory of 3684	3392	cmstp.exe	cmd.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads