xloader | acea416e96234be71f6b7876e85135d047c82b07980551cbe937e224b6321c98

General

Target

e.exe
Size

164KB
MD5

24fa54b1435a3d9f7ed24c2f0d6c1d7d
SHA1

43ee450cd49c06606705408de851639e15c4d145
SHA256

acea416e96234be71f6b7876e85135d047c82b07980551cbe937e224b6321c98
SHA512

85791641d7ef626290856726fcf859b8bc420febca5127c94b7f4a135df0ef578fe0a7f06a0141b75eb52953510d9c232ec10bef6ffa6b0b53915c4796e07e28

Score

10^/10

xloader epns loader rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epns

C2

http://www.lnvietnam.online/epns/

Decoy

mmfaccao.com

blttsperma.quest

946abe.net

indispensablehands.com

jkformationfrance.com

phonerepaire.com

lienquan-trian.com

youkuti.com

empowermindbodystudios.com

seunicapf.com

fk-link.xyz

kunai.tech

difficultbutdoablebrand.com

ejworkspace.com

teracorp.biz

thekids.today

quintaalentejana.com

annaviruksham.com

jshengrong.com

nsmetalmakina.xyz

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 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/960-59-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

cmstp.exe

flow pid process

21 960 cmstp.exe
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

flow	pid	process
21	960	cmstp.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

e.execmstp.exe

description	pid	process	target process
PID 1092 set thread context of 1360	1092	e.exe	Explorer.EXE
PID 960 set thread context of 1360	960	cmstp.exe	Explorer.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-1-5-21-3456797065-1076791440-4146276586-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

e.execmstp.exe

pid	process
1092	e.exe
1092	e.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe
960	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

e.execmstp.exe

pid process

1092 e.exe
1092 e.exe
1092 e.exe
960 cmstp.exe
960 cmstp.exe
960 cmstp.exe
960 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

e.execmstp.exe

description pid process

Token: SeDebugPrivilege 1092 e.exe
Token: SeDebugPrivilege 960 cmstp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1360 Explorer.EXE
1360 Explorer.EXE

pid	process
1360	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1092	e.exe
Token: SeDebugPrivilege	960	cmstp.exe

pid	process
1360	Explorer.EXE
1360	Explorer.EXE

pid	process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Explorer.EXEcmstp.exe

description	pid	process	target process
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 1360 wrote to memory of 960	1360	Explorer.EXE	cmstp.exe
PID 960 wrote to memory of 1008	960	cmstp.exe	Firefox.exe
PID 960 wrote to memory of 1008	960	cmstp.exe	Firefox.exe
PID 960 wrote to memory of 1008	960	cmstp.exe	Firefox.exe
PID 960 wrote to memory of 1008	960	cmstp.exe	Firefox.exe
PID 960 wrote to memory of 1008	960	cmstp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1360

C:\Users\Admin\AppData\Local\Temp\e.exe
"C:\Users\Admin\AppData\Local\Temp\e.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1092

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/960-56-0x0000000000000000-mapping.dmp

Download
memory/960-57-0x0000000074B41000-0x0000000074B43000-memory.dmp

Filesize
8KB

Download
memory/960-59-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/960-58-0x0000000000390000-0x00000000003A8000-memory.dmp

Filesize
96KB

Download
memory/960-60-0x0000000001E10000-0x0000000002113000-memory.dmp

Filesize
3.0MB

Download
memory/960-61-0x0000000001CC0000-0x0000000001D50000-memory.dmp

Filesize
576KB

Download
memory/1092-54-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/1092-53-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/1360-55-0x0000000004B10000-0x0000000004BE4000-memory.dmp

Filesize
848KB

Download
memory/1360-62-0x0000000006F60000-0x0000000007066000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads