xloader | d77edf575af32f39c003ccc192ba10259ccb94bd9a5e791b4cd56605fe1bde1d

General

Target

Payment.xlsx
Size

1.9MB
MD5

3812fac8cd9bd9459499c7888db6ec01
SHA1

b86b7eec3bf457494c4c091011c681ea28a57c2e
SHA256

d77edf575af32f39c003ccc192ba10259ccb94bd9a5e791b4cd56605fe1bde1d
SHA512

5453a1f8c870340215b488dcf95e812765de22d3c4f566c387aa2f64998d08467c19522b6ea0fa19567cac022ac5a7ededdef300481967f26fa7457bb6127f42

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/1972-81-0x000000000041D0A0-mapping.dmp	xloader
behavioral1/memory/1972-80-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1472-92-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1928 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1096 vbc.exe
1972 vbc.exe
Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXE

pid process

1928 EQNEDT32.EXE
1928 EQNEDT32.EXE
1928 EQNEDT32.EXE
1928 EQNEDT32.EXE
1928 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
7	1928	EQNEDT32.EXE

pid	process
1096	vbc.exe
1972	vbc.exe

pid	process
1928	EQNEDT32.EXE
1928	EQNEDT32.EXE
1928	EQNEDT32.EXE
1928	EQNEDT32.EXE
1928	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exewininit.exe

description	pid	process	target process
PID 1096 set thread context of 1972	1096	vbc.exe	vbc.exe
PID 1972 set thread context of 1244	1972	vbc.exe	Explorer.EXE
PID 1972 set thread context of 1244	1972	vbc.exe	Explorer.EXE
PID 1472 set thread context of 1244	1472	wininit.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

1928 EQNEDT32.EXE

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

pid	process
1928	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\MenuExt	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
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
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
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

368 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

vbc.exewininit.exe

pid process

1972 vbc.exe
1972 vbc.exe
1972 vbc.exe
1472 wininit.exe
1472 wininit.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1244 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exewininit.exe

pid process

1972 vbc.exe
1972 vbc.exe
1972 vbc.exe
1972 vbc.exe
1472 wininit.exe
1472 wininit.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exewininit.exe

description pid process

Token: SeDebugPrivilege 1972 vbc.exe
Token: SeDebugPrivilege 1472 wininit.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXEvbc.exe

pid process

368 EXCEL.EXE
368 EXCEL.EXE
368 EXCEL.EXE
1096 vbc.exe
1096 vbc.exe

pid	process
368	EXCEL.EXE

pid	process
1972	vbc.exe
1972	vbc.exe
1972	vbc.exe
1472	wininit.exe
1472	wininit.exe

pid	process
1244	Explorer.EXE

pid	process
1972	vbc.exe
1972	vbc.exe
1972	vbc.exe
1972	vbc.exe
1472	wininit.exe
1472	wininit.exe

description	pid	process
Token: SeDebugPrivilege	1972	vbc.exe
Token: SeDebugPrivilege	1472	wininit.exe

pid	process
368	EXCEL.EXE
368	EXCEL.EXE
368	EXCEL.EXE
1096	vbc.exe
1096	vbc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 1928 wrote to memory of 1096	1928	EQNEDT32.EXE	vbc.exe
PID 1928 wrote to memory of 1096	1928	EQNEDT32.EXE	vbc.exe
PID 1928 wrote to memory of 1096	1928	EQNEDT32.EXE	vbc.exe
PID 1928 wrote to memory of 1096	1928	EQNEDT32.EXE	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1096 wrote to memory of 1972	1096	vbc.exe	vbc.exe
PID 1244 wrote to memory of 1472	1244	Explorer.EXE	wininit.exe
PID 1244 wrote to memory of 1472	1244	Explorer.EXE	wininit.exe
PID 1244 wrote to memory of 1472	1244	Explorer.EXE	wininit.exe
PID 1244 wrote to memory of 1472	1244	Explorer.EXE	wininit.exe
PID 1472 wrote to memory of 1340	1472	wininit.exe	cmd.exe
PID 1472 wrote to memory of 1340	1472	wininit.exe	cmd.exe
PID 1472 wrote to memory of 1340	1472	wininit.exe	cmd.exe
PID 1472 wrote to memory of 1340	1472	wininit.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1244
- 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:368
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1472
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Public\vbc.exe"
    3⤵
    PID:1340

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:1928
- 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:1096
- - 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:1972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

Scripting

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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/368-59-0x000000002FC11000-0x000000002FC14000-memory.dmp

Filesize
12KB

Download
memory/368-60-0x0000000071671000-0x0000000071673000-memory.dmp

Filesize
8KB

Download
memory/368-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/368-77-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1096-76-0x00000000009C0000-0x00000000009CE000-memory.dmp

Filesize
56KB

Download
memory/1096-75-0x0000000004922000-0x0000000004923000-memory.dmp

Filesize
4KB

Download
memory/1096-74-0x0000000004921000-0x0000000004922000-memory.dmp

Filesize
4KB

Download
memory/1096-71-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/1096-68-0x0000000000000000-mapping.dmp

Download
memory/1096-78-0x0000000006140000-0x00000000061B8000-memory.dmp

Filesize
480KB

Download
memory/1096-79-0x0000000004830000-0x0000000004860000-memory.dmp

Filesize
192KB

Download
memory/1096-73-0x0000000004920000-0x0000000004921000-memory.dmp

Filesize
4KB

Download
memory/1244-86-0x0000000006CC0000-0x0000000006E34000-memory.dmp

Filesize
1.5MB

Download
memory/1244-95-0x0000000009210000-0x0000000009370000-memory.dmp

Filesize
1.4MB

Download
memory/1244-88-0x0000000006F80000-0x0000000007116000-memory.dmp

Filesize
1.6MB

Download
memory/1340-90-0x0000000000000000-mapping.dmp

Download
memory/1472-89-0x0000000000000000-mapping.dmp

Download
memory/1472-91-0x0000000000970000-0x000000000098A000-memory.dmp

Filesize
104KB

Download
memory/1472-92-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1472-93-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/1472-94-0x0000000001E20000-0x0000000001EB0000-memory.dmp

Filesize
576KB

Download
memory/1928-62-0x0000000076661000-0x0000000076663000-memory.dmp

Filesize
8KB

Download
memory/1972-85-0x0000000000280000-0x0000000000291000-memory.dmp

Filesize
68KB

Download
memory/1972-87-0x00000000003A0000-0x00000000003B1000-memory.dmp

Filesize
68KB

Download
memory/1972-84-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1972-80-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1972-81-0x000000000041D0A0-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads