xloader | fc791a24b4250988196f8c8b174d778e0ed1f4ea2a3c8601b25ab4431df56f08

General

Target

Proforma.01102021.PDF.exe
Size

918KB
MD5

af94940941c68cabed310c1664febd82
SHA1

eee9e33fb4fac7b2bdc36873c789d3701ba0b204
SHA256

fc791a24b4250988196f8c8b174d778e0ed1f4ea2a3c8601b25ab4431df56f08
SHA512

124d162fb2e6dc11c1d2555564da3a8e1a38a61b77b60b351e2d588fdb90af550c9d2717db750b2f4e9b1fca8365da595e46f770cba3ca870462aa20f77519e3

Score

10^/10

xloader pvxz loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

pvxz

C2

http://www.finetipster.com/pvxz/

Decoy

imt-token.club

abravewayocen.online

shcloudcar.com

mshoppingworld.online

ncgf08.xyz

stuinfo.xyz

wesavetheplanetofficial.com

tourbox.xyz

believeinyourselftraining.com

jsboyat.com

aaeconomy.info

9etmorea.info

purosepeti7.com

goticketly.com

pinkmemorypt.com

mylifewellnesscentre.com

iridina.online

petrestore.online

neema.xyz

novelfooditalia.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1028-60-0x0000000000000000-mapping.dmp	xloader
behavioral1/memory/1028-63-0x0000000072480000-0x00000000724A9000-memory.dmp	xloader
behavioral1/memory/1668-72-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

cmstp.exe

flow pid process

22 1668 cmstp.exe

flow	pid	process
22	1668	cmstp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Proforma.01102021.PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uffuprmo = "C:\\Users\\Public\\Libraries\\\\omrpuffU.url"	Proforma.01102021.PDF.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

DpiScaling.execmstp.exe

description	pid	process	target process
PID 1028 set thread context of 1216	1028	DpiScaling.exe	Explorer.EXE
PID 1668 set thread context of 1216	1668	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

DpiScaling.execmstp.exe

pid	process
1028	DpiScaling.exe
1028	DpiScaling.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe
1668	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

DpiScaling.execmstp.exe

pid process

1028 DpiScaling.exe
1028 DpiScaling.exe
1028 DpiScaling.exe
1668 cmstp.exe
1668 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

DpiScaling.execmstp.exe

description pid process

Token: SeDebugPrivilege 1028 DpiScaling.exe
Token: SeDebugPrivilege 1668 cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1028	DpiScaling.exe
Token: SeDebugPrivilege	1668	cmstp.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Proforma.01102021.PDF.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1120 wrote to memory of 1028	1120	Proforma.01102021.PDF.exe	DpiScaling.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1216 wrote to memory of 1668	1216	Explorer.EXE	cmstp.exe
PID 1668 wrote to memory of 1796	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1796	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1796	1668	cmstp.exe	cmd.exe
PID 1668 wrote to memory of 1796	1668	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216

C:\Users\Admin\AppData\Local\Temp\Proforma.01102021.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma.01102021.PDF.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1120

C:\Windows\SysWOW64\DpiScaling.exe
C:\Windows\System32\DpiScaling.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1028

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:1668

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\DpiScaling.exe"
3⤵
PID:1796

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1028-65-0x0000000002170000-0x0000000002473000-memory.dmp

Filesize
3.0MB

Download
memory/1028-62-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1028-66-0x0000000000250000-0x0000000000261000-memory.dmp

Filesize
68KB

Download
memory/1028-57-0x0000000072480000-0x00000000724A9000-memory.dmp

Filesize
164KB

Download
memory/1028-60-0x0000000000000000-mapping.dmp

Download
memory/1028-58-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1028-63-0x0000000072480000-0x00000000724A9000-memory.dmp

Filesize
164KB

Download
memory/1120-56-0x00000000002C1000-0x00000000002D5000-memory.dmp

Filesize
80KB

Download
memory/1120-55-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1120-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1216-75-0x0000000006900000-0x0000000006A03000-memory.dmp

Filesize
1.0MB

Download
memory/1216-67-0x00000000065F0000-0x00000000066CA000-memory.dmp

Filesize
872KB

Download
memory/1668-68-0x0000000000000000-mapping.dmp

Download
memory/1668-71-0x0000000000B90000-0x0000000000BA8000-memory.dmp

Filesize
96KB

Download
memory/1668-73-0x0000000001FB0000-0x00000000022B3000-memory.dmp

Filesize
3.0MB

Download
memory/1668-72-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1668-74-0x0000000000870000-0x0000000000900000-memory.dmp

Filesize
576KB

Download
memory/1796-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads