xloader | 288af22386d598b4f132cdd48af047726697d5be16b5e7757eab935e54605c44

General

Target

PO894749745.exe
Size

720KB
MD5

c705b518d1ca69c0443f2f5eb0e655a2
SHA1

aab7fb45b724954b382f93a3aebc5109f7fb4138
SHA256

371a78d5f848b70de0d716586851eec55e92fc1e4e5898943c62c67a99c9e07a
SHA512

fe206b5f73624134eecf339d134384a66d44fc8a890f67e4b2fa1867caa10106b5e715343885f945d4f145b52c944caec9abe4e04126904944d9735766fc8501

Score

10^/10

xloader b6fg loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.0

Campaign

b6fg

Decoy

multlockmt5.com

mohajrannoor.com

robynhoodofretail.info

belinv.com

hotellasab.com

kibrismosad.com

xn--fxwm39aeb590h.xn--io0a7i

resetbrasil.com

tcsonhvac.com

theresav.net

bohoqi.info

machinafuturae.com

mambavault.com

xn--980am9a.top

yumiang.com

evntmonitor.com

83003kk.com

triterm.com

8800pe.com

silvanstudio.com

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/1708-62-0x000000000041C160-mapping.dmp	xloader
behavioral1/memory/1708-61-0x0000000000400000-0x0000000000427000-memory.dmp	xloader
behavioral1/memory/1708-64-0x0000000000400000-0x0000000000427000-memory.dmp	xloader
behavioral1/memory/2012-72-0x0000000000090000-0x00000000000B7000-memory.dmp	xloader

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmstp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KTNTHTGH2TV = "C:\\Program Files (x86)\\Rvrnhr6\\Cookieskpx0sfgh.exe"	cmstp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO894749745.exevbc.execmstp.exe

description	pid	process	target process
PID 1420 set thread context of 1708	1420	PO894749745.exe	vbc.exe
PID 1708 set thread context of 1252	1708	vbc.exe	Explorer.EXE
PID 2012 set thread context of 1252	2012	cmstp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmstp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Rvrnhr6\Cookieskpx0sfgh.exe cmstp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Rvrnhr6\Cookieskpx0sfgh.exe	cmstp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmstp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

PO894749745.exevbc.execmstp.exe

pid	process
1420	PO894749745.exe
1708	vbc.exe
1708	vbc.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

vbc.execmstp.exe

pid process

1708 vbc.exe
1708 vbc.exe
1708 vbc.exe
2012 cmstp.exe
2012 cmstp.exe
2012 cmstp.exe
2012 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO894749745.exevbc.execmstp.exe

description pid process

Token: SeDebugPrivilege 1420 PO894749745.exe
Token: SeDebugPrivilege 1708 vbc.exe
Token: SeDebugPrivilege 2012 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1252 Explorer.EXE
1252 Explorer.EXE

pid	process
1708	vbc.exe
1708	vbc.exe
1708	vbc.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe
2012	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1420	PO894749745.exe
Token: SeDebugPrivilege	1708	vbc.exe
Token: SeDebugPrivilege	2012	cmstp.exe

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

pid	process
1252	Explorer.EXE
1252	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

PO894749745.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1420 wrote to memory of 960	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 960	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 960	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 960	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1420 wrote to memory of 1708	1420	PO894749745.exe	vbc.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 1252 wrote to memory of 2012	1252	Explorer.EXE	cmstp.exe
PID 2012 wrote to memory of 1484	2012	cmstp.exe	cmd.exe
PID 2012 wrote to memory of 1484	2012	cmstp.exe	cmd.exe
PID 2012 wrote to memory of 1484	2012	cmstp.exe	cmd.exe
PID 2012 wrote to memory of 1484	2012	cmstp.exe	cmd.exe
PID 2012 wrote to memory of 1968	2012	cmstp.exe	Firefox.exe
PID 2012 wrote to memory of 1968	2012	cmstp.exe	Firefox.exe
PID 2012 wrote to memory of 1968	2012	cmstp.exe	Firefox.exe
PID 2012 wrote to memory of 1968	2012	cmstp.exe	Firefox.exe
PID 2012 wrote to memory of 1968	2012	cmstp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1252

C:\Users\Admin\AppData\Local\Temp\PO894749745.exe
"C:\Users\Admin\AppData\Local\Temp\PO894749745.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
3⤵
PID:960

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1708

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:1484

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1252-75-0x0000000007890000-0x0000000007A02000-memory.dmp

Filesize
1.4MB

Download
memory/1252-67-0x0000000004AD0000-0x0000000004BB5000-memory.dmp

Filesize
916KB

Download
memory/1420-54-0x00000000001F0000-0x00000000002AA000-memory.dmp

Filesize
744KB

Download
memory/1420-55-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/1420-56-0x0000000000500000-0x000000000051C000-memory.dmp

Filesize
112KB

Download
memory/1420-57-0x00000000020E0000-0x0000000002116000-memory.dmp

Filesize
216KB

Download
memory/1484-70-0x0000000000000000-mapping.dmp

Download
memory/1708-64-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1708-61-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1708-65-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download
memory/1708-66-0x00000000001E0000-0x00000000001F0000-memory.dmp

Filesize
64KB

Download
memory/1708-62-0x000000000041C160-mapping.dmp

Download
memory/1708-59-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1708-58-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2012-68-0x0000000000000000-mapping.dmp

Download
memory/2012-71-0x00000000001B0000-0x00000000001C8000-memory.dmp

Filesize
96KB

Download
memory/2012-72-0x0000000000090000-0x00000000000B7000-memory.dmp

Filesize
156KB

Download
memory/2012-73-0x0000000001E30000-0x0000000002133000-memory.dmp

Filesize
3.0MB

Download
memory/2012-74-0x0000000001C40000-0x0000000001CCF000-memory.dmp

Filesize
572KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads