xloader | fdf00af2636a0e8756bb4f8eece1dfe360127c96030ce3f4bbb1484909333de0

General

Target

PURCHASE ORDER 5112101.xlsx
Size

1.4MB
MD5

5c28a20ff81428e4038d11a4eca86729
SHA1

8dd4efc4906f1227589515da1ce37f1a12f09e37
SHA256

fdf00af2636a0e8756bb4f8eece1dfe360127c96030ce3f4bbb1484909333de0
SHA512

ff727aab96c571b44d280b02b08bbe795d2623afd27982c7a3df2fb5c2b0d1edf7b84a8b69f365776e442cf58099beab879da532136fd7fd24033d7b7ee909e5

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.drpratimakanade.com/bucw/

Decoy

cypresscommonsmesa.com

xunzetec.com

remotelearningteaching.com

leftofcrypto.com

netoscarlocadora.com

christinahsmith.com

dentalimplantsrulerun.info

lovelutionsolutions.com

incintlservicesus.com

elktcg.com

spahnmovieranch.com

deaf-noise.xyz

shopanilora.com

mianmozx.com

brlnathletics.com

cornishway.com

landscapingdracut.com

herusageseesee.com

funimationapp.com

jflowllc.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1204-79-0x000000000041D0D0-mapping.dmp	xloader
behavioral1/memory/1204-78-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1852-89-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1996 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1776 vbc.exe
1204 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1996 EQNEDT32.EXE
1996 EQNEDT32.EXE
1996 EQNEDT32.EXE
1996 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1996	EQNEDT32.EXE

pid	process
1776	vbc.exe
1204	vbc.exe

pid	process
1996	EQNEDT32.EXE
1996	EQNEDT32.EXE
1996	EQNEDT32.EXE
1996	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeipconfig.exe

description	pid	process	target process
PID 1776 set thread context of 1204	1776	vbc.exe	vbc.exe
PID 1204 set thread context of 1212	1204	vbc.exe	Explorer.EXE
PID 1852 set thread context of 1212	1852	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

1852 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

1996 EQNEDT32.EXE

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

pid	process
1852	ipconfig.exe

pid	process
1996	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-1-5-21-2455352368-1077083310-2879168483-1000\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\Se&nd to OneNote	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 (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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	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\Se&nd to OneNote\Contexts = "55"	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1080 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1204 vbc.exe
1204 vbc.exe
1852 ipconfig.exe
1852 ipconfig.exe
1852 ipconfig.exe
1852 ipconfig.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1204 vbc.exe
1204 vbc.exe
1204 vbc.exe
1852 ipconfig.exe
1852 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 1204 vbc.exe
Token: SeDebugPrivilege 1852 ipconfig.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1080 EXCEL.EXE
1080 EXCEL.EXE
1080 EXCEL.EXE

pid	process
1080	EXCEL.EXE

pid	process
1204	vbc.exe
1204	vbc.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe
1852	ipconfig.exe

pid	process
1212	Explorer.EXE

pid	process
1204	vbc.exe
1204	vbc.exe
1204	vbc.exe
1852	ipconfig.exe
1852	ipconfig.exe

description	pid	process
Token: SeDebugPrivilege	1204	vbc.exe
Token: SeDebugPrivilege	1852	ipconfig.exe

pid	process
1080	EXCEL.EXE
1080	EXCEL.EXE
1080	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 1996 wrote to memory of 1776	1996	EQNEDT32.EXE	vbc.exe
PID 1996 wrote to memory of 1776	1996	EQNEDT32.EXE	vbc.exe
PID 1996 wrote to memory of 1776	1996	EQNEDT32.EXE	vbc.exe
PID 1996 wrote to memory of 1776	1996	EQNEDT32.EXE	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1776 wrote to memory of 1204	1776	vbc.exe	vbc.exe
PID 1212 wrote to memory of 1852	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 1852	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 1852	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 1852	1212	Explorer.EXE	ipconfig.exe
PID 1852 wrote to memory of 1292	1852	ipconfig.exe	cmd.exe
PID 1852 wrote to memory of 1292	1852	ipconfig.exe	cmd.exe
PID 1852 wrote to memory of 1292	1852	ipconfig.exe	cmd.exe
PID 1852 wrote to memory of 1292	1852	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1212

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\PURCHASE ORDER 5112101.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1080

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:1852

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1292

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:1996

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1776

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:1204

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
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
C:\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
C:\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
\Users\Public\vbc.exe
MD5
b0053ddc80b4aa7b07029f94c4d3f063

SHA1
1e77172b6474bed24831b97e4bd42828f0cce91e

SHA256
4917a12fce46a55c99e102daf9b78b0a121dfad821abfe6a43d60e6dfde4c488

SHA512
fd68bf311ef35ce444a6ad300de0180ba4f75f8233db5412db1788c38a6454383f460e8c03f15d3803296d7bdeb48da527f83f88b8c3679e28af543b10de2a16

Download Submit
memory/1080-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1080-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1080-60-0x000000002F7E1000-0x000000002F7E4000-memory.dmp

Filesize
12KB

Download
memory/1080-61-0x0000000070E31000-0x0000000070E33000-memory.dmp

Filesize
8KB

Download
memory/1204-78-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1204-83-0x0000000000120000-0x0000000000130000-memory.dmp

Filesize
64KB

Download
memory/1204-82-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/1204-79-0x000000000041D0D0-mapping.dmp

Download
memory/1212-92-0x0000000003E20000-0x0000000003EEB000-memory.dmp

Filesize
812KB

Download
memory/1212-84-0x0000000004E80000-0x0000000004F9C000-memory.dmp

Filesize
1.1MB

Download
memory/1292-87-0x0000000000000000-mapping.dmp

Download
memory/1776-74-0x00000000004B0000-0x00000000004B4000-memory.dmp

Filesize
16KB

Download
memory/1776-77-0x0000000005350000-0x00000000053CF000-memory.dmp

Filesize
508KB

Download
memory/1776-76-0x0000000005280000-0x0000000005342000-memory.dmp

Filesize
776KB

Download
memory/1776-68-0x0000000000000000-mapping.dmp

Download
memory/1776-73-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/1776-71-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/1852-85-0x0000000000000000-mapping.dmp

Download
memory/1852-89-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1852-90-0x0000000002400000-0x0000000002703000-memory.dmp

Filesize
3.0MB

Download
memory/1852-88-0x0000000000790000-0x000000000079A000-memory.dmp

Filesize
40KB

Download
memory/1852-91-0x00000000005E0000-0x000000000066F000-memory.dmp

Filesize
572KB

Download
memory/1996-63-0x0000000075801000-0x0000000075803000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads