xloader | 3a6cc669542f5e3f9a801e9344b182c71e72396e27afbeac14eeb3d3be0b9498

General

Target

Payment.xlsx
Size

1.3MB
MD5

05f49aa5b342dedd1d7b6673f3d8bc41
SHA1

9ca061b9851269f8b1d2fd990ebe119903a5f0fb
SHA256

3a6cc669542f5e3f9a801e9344b182c71e72396e27afbeac14eeb3d3be0b9498
SHA512

dc296422a45c34721b0746b1b3b34581def5b69b081718e790d4ad75e9e67c6f1afd6a5197ee48fba9d1d7c574ac95a4797b29ad4b2bfc094580fffa78513f2b

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.cats16.com/8u3b/

Decoy

pipienta.com

wisdomfest.net

jenniferreich.com

bigcanoehomesforless.com

kayandbernard.com

offerbuildingsecrets.com

benleefoto.com

contactlesssoftware.tech

statenislandplumbing.info

lifestylemedicineservices.com

blazerplanning.com

fnatic-skins.club

effectivemarketinginc.com

babyshopit.com

2000deal.com

k12paymentcemter.com

spwakd.com

lesreponses.com

abundando.com

hawkspremierfhc.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/832-81-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/832-82-0x000000000041D0A0-mapping.dmp	xloader
behavioral1/memory/1296-91-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1072 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1528 vbc.exe
832 vbc.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXE

pid process

1072 EQNEDT32.EXE
1072 EQNEDT32.EXE
1072 EQNEDT32.EXE
1072 EQNEDT32.EXE
1072 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 2 IoCs

Processes:

vbc.exevbc.exe

description pid process target process

PID 1528 set thread context of 832 1528 vbc.exe vbc.exe
PID 832 set thread context of 1220 832 vbc.exe Explorer.EXE
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1072 EQNEDT32.EXE

flow	pid	process
7	1072	EQNEDT32.EXE

pid	process
1528	vbc.exe
832	vbc.exe

pid	process
1072	EQNEDT32.EXE
1072	EQNEDT32.EXE
1072	EQNEDT32.EXE
1072	EQNEDT32.EXE
1072	EQNEDT32.EXE

description	pid	process	target process
PID 1528 set thread context of 832	1528	vbc.exe	vbc.exe
PID 832 set thread context of 1220	832	vbc.exe	Explorer.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
1072	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1828 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

vbc.exemsdt.exe

pid process

832 vbc.exe
832 vbc.exe
1296 msdt.exe
1296 msdt.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

vbc.exemsdt.exe

pid process

832 vbc.exe
832 vbc.exe
832 vbc.exe
1296 msdt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exemsdt.exe

description pid process

Token: SeDebugPrivilege 832 vbc.exe
Token: SeDebugPrivilege 1296 msdt.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXEvbc.exe

pid process

1828 EXCEL.EXE
1828 EXCEL.EXE
1828 EXCEL.EXE
1528 vbc.exe
1528 vbc.exe

pid	process
1828	EXCEL.EXE

pid	process
832	vbc.exe
832	vbc.exe
1296	msdt.exe
1296	msdt.exe

pid	process
832	vbc.exe
832	vbc.exe
832	vbc.exe
1296	msdt.exe

description	pid	process
Token: SeDebugPrivilege	832	vbc.exe
Token: SeDebugPrivilege	1296	msdt.exe

pid	process
1828	EXCEL.EXE
1828	EXCEL.EXE
1828	EXCEL.EXE
1528	vbc.exe
1528	vbc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 1072 wrote to memory of 1528	1072	EQNEDT32.EXE	vbc.exe
PID 1072 wrote to memory of 1528	1072	EQNEDT32.EXE	vbc.exe
PID 1072 wrote to memory of 1528	1072	EQNEDT32.EXE	vbc.exe
PID 1072 wrote to memory of 1528	1072	EQNEDT32.EXE	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1528 wrote to memory of 832	1528	vbc.exe	vbc.exe
PID 1220 wrote to memory of 1296	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 1296	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 1296	1220	Explorer.EXE	msdt.exe
PID 1220 wrote to memory of 1296	1220	Explorer.EXE	msdt.exe
PID 1296 wrote to memory of 1556	1296	msdt.exe	cmd.exe
PID 1296 wrote to memory of 1556	1296	msdt.exe	cmd.exe
PID 1296 wrote to memory of 1556	1296	msdt.exe	cmd.exe
PID 1296 wrote to memory of 1556	1296	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1220

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Payment.xlsx
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1828

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1556

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1072

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1528

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:832

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
C:\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
C:\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
\Users\Public\vbc.exe
MD5
5551346aa9f251895021b95a2a7cc390

SHA1
acbcecf7599d3c33f6f2a36c0947cfc633d0a406

SHA256
9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

SHA512
35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Download Submit
memory/832-82-0x000000000041D0A0-mapping.dmp

Download
memory/832-81-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/832-86-0x00000000002F0000-0x0000000000301000-memory.dmp

Filesize
68KB

Download
memory/832-85-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1072-63-0x00000000762C1000-0x00000000762C3000-memory.dmp

Filesize
8KB

Download
memory/1220-87-0x0000000006080000-0x0000000006211000-memory.dmp

Filesize
1.6MB

Download
memory/1296-91-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1296-92-0x0000000002270000-0x0000000002573000-memory.dmp

Filesize
3.0MB

Download
memory/1296-90-0x0000000000640000-0x0000000000734000-memory.dmp

Filesize
976KB

Download
memory/1296-88-0x0000000000000000-mapping.dmp

Download
memory/1528-75-0x0000000001241000-0x0000000001242000-memory.dmp

Filesize
4KB

Download
memory/1528-80-0x0000000001210000-0x0000000001240000-memory.dmp

Filesize
192KB

Download
memory/1528-79-0x0000000005B40000-0x0000000005BB8000-memory.dmp

Filesize
480KB

Download
memory/1528-77-0x0000000000A80000-0x0000000000A8E000-memory.dmp

Filesize
56KB

Download
memory/1528-76-0x0000000001242000-0x0000000001243000-memory.dmp

Filesize
4KB

Download
memory/1528-69-0x0000000000000000-mapping.dmp

Download
memory/1528-74-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/1528-72-0x0000000001310000-0x0000000001311000-memory.dmp

Filesize
4KB

Download
memory/1556-93-0x0000000000000000-mapping.dmp

Download
memory/1828-60-0x000000002FDA1000-0x000000002FDA4000-memory.dmp

Filesize
12KB

Download
memory/1828-61-0x0000000071CA1000-0x0000000071CA3000-memory.dmp

Filesize
8KB

Download
memory/1828-78-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1828-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads