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/1532-80-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1532-81-0x000000000041D0A0-mapping.dmp	xloader
behavioral1/memory/620-93-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 332 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1828 vbc.exe
1532 vbc.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXE

pid process

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

Scripting
T1064

flow	pid	process
6	332	EQNEDT32.EXE

pid	process
1828	vbc.exe
1532	vbc.exe

pid	process
332	EQNEDT32.EXE
332	EQNEDT32.EXE
332	EQNEDT32.EXE
332	EQNEDT32.EXE
332	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exeipconfig.exe

description	pid	process	target process
PID 1828 set thread context of 1532	1828	vbc.exe	vbc.exe
PID 1532 set thread context of 1292	1532	vbc.exe	Explorer.EXE
PID 1532 set thread context of 1292	1532	vbc.exe	Explorer.EXE
PID 620 set thread context of 1292	620	ipconfig.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
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

620 ipconfig.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

332 EQNEDT32.EXE

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

pid	process
620	ipconfig.exe

pid	process
332	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1116 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1532 vbc.exe
1532 vbc.exe
1532 vbc.exe
620 ipconfig.exe
620 ipconfig.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1292 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1532 vbc.exe
1532 vbc.exe
1532 vbc.exe
1532 vbc.exe
620 ipconfig.exe
620 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 1532 vbc.exe
Token: SeDebugPrivilege 620 ipconfig.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXEvbc.exe

pid process

1116 EXCEL.EXE
1116 EXCEL.EXE
1116 EXCEL.EXE
1828 vbc.exe
1828 vbc.exe

pid	process
1116	EXCEL.EXE

pid	process
1532	vbc.exe
1532	vbc.exe
1532	vbc.exe
620	ipconfig.exe
620	ipconfig.exe

pid	process
1292	Explorer.EXE

pid	process
1532	vbc.exe
1532	vbc.exe
1532	vbc.exe
1532	vbc.exe
620	ipconfig.exe
620	ipconfig.exe

description	pid	process
Token: SeDebugPrivilege	1532	vbc.exe
Token: SeDebugPrivilege	620	ipconfig.exe

pid	process
1116	EXCEL.EXE
1116	EXCEL.EXE
1116	EXCEL.EXE
1828	vbc.exe
1828	vbc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 332 wrote to memory of 1828	332	EQNEDT32.EXE	vbc.exe
PID 332 wrote to memory of 1828	332	EQNEDT32.EXE	vbc.exe
PID 332 wrote to memory of 1828	332	EQNEDT32.EXE	vbc.exe
PID 332 wrote to memory of 1828	332	EQNEDT32.EXE	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1828 wrote to memory of 1532	1828	vbc.exe	vbc.exe
PID 1292 wrote to memory of 620	1292	Explorer.EXE	ipconfig.exe
PID 1292 wrote to memory of 620	1292	Explorer.EXE	ipconfig.exe
PID 1292 wrote to memory of 620	1292	Explorer.EXE	ipconfig.exe
PID 1292 wrote to memory of 620	1292	Explorer.EXE	ipconfig.exe
PID 620 wrote to memory of 1072	620	ipconfig.exe	cmd.exe
PID 620 wrote to memory of 1072	620	ipconfig.exe	cmd.exe
PID 620 wrote to memory of 1072	620	ipconfig.exe	cmd.exe
PID 620 wrote to memory of 1072	620	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1292

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:1116

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:620

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1072

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:332

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:1828

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:1532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Command-Line Interface

1

T1059

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

2

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/332-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/620-92-0x0000000000300000-0x000000000030A000-memory.dmp

Filesize
40KB

Download
memory/620-95-0x0000000001F00000-0x0000000001F90000-memory.dmp

Filesize
576KB

Download
memory/620-94-0x0000000002020000-0x0000000002323000-memory.dmp

Filesize
3.0MB

Download
memory/620-93-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/620-89-0x0000000000000000-mapping.dmp

Download
memory/1072-91-0x0000000000000000-mapping.dmp

Download
memory/1116-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1116-60-0x0000000071B01000-0x0000000071B03000-memory.dmp

Filesize
8KB

Download
memory/1116-77-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1116-59-0x000000002F9C1000-0x000000002F9C4000-memory.dmp

Filesize
12KB

Download
memory/1292-96-0x0000000006A00000-0x0000000006AC6000-memory.dmp

Filesize
792KB

Download
memory/1292-88-0x0000000006DA0000-0x0000000006EBB000-memory.dmp

Filesize
1.1MB

Download
memory/1292-86-0x0000000004740000-0x0000000004833000-memory.dmp

Filesize
972KB

Download
memory/1532-85-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/1532-84-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/1532-81-0x000000000041D0A0-mapping.dmp

Download
memory/1532-80-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1532-87-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/1828-79-0x0000000004790000-0x00000000047C0000-memory.dmp

Filesize
192KB

Download
memory/1828-78-0x00000000052F0000-0x0000000005368000-memory.dmp

Filesize
480KB

Download
memory/1828-76-0x00000000004F0000-0x00000000004FE000-memory.dmp

Filesize
56KB

Download
memory/1828-75-0x0000000004EF2000-0x0000000004EF3000-memory.dmp

Filesize
4KB

Download
memory/1828-74-0x0000000004EF1000-0x0000000004EF2000-memory.dmp

Filesize
4KB

Download
memory/1828-73-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Filesize
4KB

Download
memory/1828-71-0x0000000000950000-0x0000000000951000-memory.dmp

Filesize
4KB

Download
memory/1828-68-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads