xloader | de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

General

Target

triage_dropped_file.exe
Size

941KB
MD5

538af9b3eb449aaf53eeaf6ecf3c4037
SHA1

edc27955b5d2388c7a2b792721941d2c270eac5a
SHA256

de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220
SHA512

a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Score

10^/10

xloader fpdi loader persistence rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

fpdi

C2

http://www.walletwriter.space/fpdi/

Decoy

jencio.com

b9jty7.com

banahinvestments.com

capitolfurniture.net

jlvip1086.com

pompeyocargo.com

designbyshubhi.info

elbauldepecas.com

bracelexx.online

advanceporbrx.xyz

ruihongco.com

wipemirecord.com

goodfoodsme.com

sommpick.com

rangilugujarat.com

realestate5g.com

spunkdlashes.com

palisadestahoehousing.com

brandingsocal.com

privatejetsboston.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/720-58-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/720-59-0x000000000041D460-mapping.dmp	xloader
behavioral1/memory/1120-67-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader
behavioral1/memory/784-80-0x000000000041D460-mapping.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

systray1b0dit2.exesystray1b0dit2.exe

pid process

1672 systray1b0dit2.exe
784 systray1b0dit2.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1812 cmd.exe

pid	process
1672	systray1b0dit2.exe
784	systray1b0dit2.exe

pid	process
1812	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MBDX6TP8OX = "C:\\Program Files (x86)\\U-z4\\systray1b0dit2.exe"	mstsc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

triage_dropped_file.exetriage_dropped_file.exemstsc.exesystray1b0dit2.exe

description	pid	process	target process
PID 820 set thread context of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 720 set thread context of 1264	720	triage_dropped_file.exe	Explorer.EXE
PID 1120 set thread context of 1264	1120	mstsc.exe	Explorer.EXE
PID 1672 set thread context of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe

Drops file in Program Files directory 3 IoCs

Processes:

mstsc.exeExplorer.EXEsystray1b0dit2.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\U-z4\systray1b0dit2.exe	mstsc.exe
File created	C:\Program Files (x86)\U-z4\systray1b0dit2.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\U-z4\systray1b0dit2.exe	systray1b0dit2.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3456797065-1076791440-4146276586-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

triage_dropped_file.exemstsc.exesystray1b0dit2.exe

pid	process
720	triage_dropped_file.exe
720	triage_dropped_file.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
784	systray1b0dit2.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe
1120	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

triage_dropped_file.exemstsc.exe

pid process

720 triage_dropped_file.exe
720 triage_dropped_file.exe
720 triage_dropped_file.exe
1120 mstsc.exe
1120 mstsc.exe
1120 mstsc.exe
1120 mstsc.exe

pid	process
1264	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

triage_dropped_file.exemstsc.exesystray1b0dit2.exe

description	pid	process
Token: SeDebugPrivilege	720	triage_dropped_file.exe
Token: SeDebugPrivilege	1120	mstsc.exe
Token: SeDebugPrivilege	784	systray1b0dit2.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

triage_dropped_file.exesystray1b0dit2.exe

pid process

820 triage_dropped_file.exe
1672 systray1b0dit2.exe

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

pid	process
820	triage_dropped_file.exe
1672	systray1b0dit2.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

triage_dropped_file.exeExplorer.EXEmstsc.exesystray1b0dit2.exe

description	pid	process	target process
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 820 wrote to memory of 720	820	triage_dropped_file.exe	triage_dropped_file.exe
PID 1264 wrote to memory of 1120	1264	Explorer.EXE	mstsc.exe
PID 1264 wrote to memory of 1120	1264	Explorer.EXE	mstsc.exe
PID 1264 wrote to memory of 1120	1264	Explorer.EXE	mstsc.exe
PID 1264 wrote to memory of 1120	1264	Explorer.EXE	mstsc.exe
PID 1120 wrote to memory of 1812	1120	mstsc.exe	cmd.exe
PID 1120 wrote to memory of 1812	1120	mstsc.exe	cmd.exe
PID 1120 wrote to memory of 1812	1120	mstsc.exe	cmd.exe
PID 1120 wrote to memory of 1812	1120	mstsc.exe	cmd.exe
PID 1120 wrote to memory of 824	1120	mstsc.exe	Firefox.exe
PID 1120 wrote to memory of 824	1120	mstsc.exe	Firefox.exe
PID 1120 wrote to memory of 824	1120	mstsc.exe	Firefox.exe
PID 1120 wrote to memory of 824	1120	mstsc.exe	Firefox.exe
PID 1264 wrote to memory of 1672	1264	Explorer.EXE	systray1b0dit2.exe
PID 1264 wrote to memory of 1672	1264	Explorer.EXE	systray1b0dit2.exe
PID 1264 wrote to memory of 1672	1264	Explorer.EXE	systray1b0dit2.exe
PID 1264 wrote to memory of 1672	1264	Explorer.EXE	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1672 wrote to memory of 784	1672	systray1b0dit2.exe	systray1b0dit2.exe
PID 1120 wrote to memory of 824	1120	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1264

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:820

C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
"C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:720

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.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:1120

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
3⤵
- Deletes itself
PID:1812

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:824

C:\Program Files (x86)\U-z4\systray1b0dit2.exe
"C:\Program Files (x86)\U-z4\systray1b0dit2.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1672

C:\Program Files (x86)\U-z4\systray1b0dit2.exe
"C:\Program Files (x86)\U-z4\systray1b0dit2.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:784

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\U-z4\systray1b0dit2.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Download Submit
C:\Program Files (x86)\U-z4\systray1b0dit2.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Download Submit
C:\Program Files (x86)\U-z4\systray1b0dit2.exe
MD5
538af9b3eb449aaf53eeaf6ecf3c4037

SHA1
edc27955b5d2388c7a2b792721941d2c270eac5a

SHA256
de43df6bd459b56aec0cd86e0873cc0c5b556e08547e2b9ea79082c44d9b7220

SHA512
a5eb2c410f8669bfb744158d459fe69221649d444394958774f2d91b7082c6537f798114ca51b395d7fe35db634cf41b86d6b7bb589ee17e0acd688bfea17ba3

Download Submit
memory/720-57-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/720-58-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/720-59-0x000000000041D460-mapping.dmp

Download
memory/720-61-0x0000000000740000-0x0000000000A43000-memory.dmp

Filesize
3.0MB

Download
memory/720-62-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/720-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/784-82-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/784-80-0x000000000041D460-mapping.dmp

Download
memory/820-55-0x0000000000220000-0x000000000022A000-memory.dmp

Filesize
40KB

Download
memory/820-54-0x0000000000220000-0x0000000000226000-memory.dmp

Filesize
24KB

Download
memory/1120-68-0x0000000002190000-0x0000000002493000-memory.dmp

Filesize
3.0MB

Download
memory/1120-70-0x0000000000AC0000-0x0000000000B50000-memory.dmp

Filesize
576KB

Download
memory/1120-66-0x0000000000C80000-0x0000000000D84000-memory.dmp

Filesize
1.0MB

Download
memory/1120-67-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1120-65-0x0000000075821000-0x0000000075823000-memory.dmp

Filesize
8KB

Download
memory/1120-64-0x0000000000000000-mapping.dmp

Download
memory/1264-71-0x0000000006E20000-0x0000000006F84000-memory.dmp

Filesize
1.4MB

Download
memory/1264-63-0x0000000006CE0000-0x0000000006E13000-memory.dmp

Filesize
1.2MB

Download
memory/1672-72-0x0000000000000000-mapping.dmp

Download
memory/1672-74-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1672-75-0x0000000000270000-0x000000000027A000-memory.dmp

Filesize
40KB

Download
memory/1812-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads