xloader | 7df06bd9c7d806c3a7b1bddc2b78c6052070b3445cad6d2f9d3f0a21b844075c

General

Target

PO 446593.xlsx
Size

595KB
MD5

1014d65c46ff68235ce581fd93f9336d
SHA1

9ee84e43d1820c322de569124e60ee585ba9604c
SHA256

7df06bd9c7d806c3a7b1bddc2b78c6052070b3445cad6d2f9d3f0a21b844075c
SHA512

72b5023e3151018cd8fa1a7081ccc55e23e84809d9c116c45077efe12d0e8aef7cfe0af6ed7280556a99d83e6247c3948e636f13509cc4fd4f3396e8d0403484

Score

10^/10

xloader utrf loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

utrf

C2

http://www.tijprintersolution.com/utrf/

Decoy

serveyournation.com

angelaepedro2021.com

spyrodinero.com

voltaicmassage.com

companystsore.com

eulicense.com

politicianwatchlist.com

gol-investissement.com

novasolutions.website

fouralarmtechnology.com

nightloop.online

saycarrot.com

rdemnry.icu

silverspoonfrenchies.com

safetyswimwear.online

dabanse.com

oldhamvw.com

tvactivations.online

ntra120.com

gallagherandburton.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
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1392-77-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1392-78-0x000000000041D150-mapping.dmp	xloader
behavioral1/memory/984-88-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 584 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

276 vbc.exe
1392 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

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

Scripting
T1064

flow	pid	process
6	584	EQNEDT32.EXE

pid	process
276	vbc.exe
1392	vbc.exe

pid	process
584	EQNEDT32.EXE
584	EQNEDT32.EXE
584	EQNEDT32.EXE
584	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeexplorer.exe

description	pid	process	target process
PID 276 set thread context of 1392	276	vbc.exe	vbc.exe
PID 1392 set thread context of 1220	1392	vbc.exe	Explorer.EXE
PID 984 set thread context of 1220	984	explorer.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

584 EQNEDT32.EXE

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

pid	process
584	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
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 (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
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
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

2016 EXCEL.EXE

pid	process
2016	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

vbc.exeexplorer.exe

pid	process
1392	vbc.exe
1392	vbc.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe
984	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeexplorer.exe

pid process

1392 vbc.exe
1392 vbc.exe
1392 vbc.exe
984 explorer.exe
984 explorer.exe

pid	process
1220	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

vbc.exeexplorer.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1392	vbc.exe
Token: SeDebugPrivilege	984	explorer.exe
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2016 EXCEL.EXE
2016 EXCEL.EXE
2016 EXCEL.EXE

pid	process
2016	EXCEL.EXE
2016	EXCEL.EXE
2016	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 584 wrote to memory of 276	584	EQNEDT32.EXE	vbc.exe
PID 584 wrote to memory of 276	584	EQNEDT32.EXE	vbc.exe
PID 584 wrote to memory of 276	584	EQNEDT32.EXE	vbc.exe
PID 584 wrote to memory of 276	584	EQNEDT32.EXE	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 276 wrote to memory of 1392	276	vbc.exe	vbc.exe
PID 1220 wrote to memory of 984	1220	Explorer.EXE	explorer.exe
PID 1220 wrote to memory of 984	1220	Explorer.EXE	explorer.exe
PID 1220 wrote to memory of 984	1220	Explorer.EXE	explorer.exe
PID 1220 wrote to memory of 984	1220	Explorer.EXE	explorer.exe
PID 984 wrote to memory of 1784	984	explorer.exe	cmd.exe
PID 984 wrote to memory of 1784	984	explorer.exe	cmd.exe
PID 984 wrote to memory of 1784	984	explorer.exe	cmd.exe
PID 984 wrote to memory of 1784	984	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- 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\PO 446593.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2016

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:984

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1784

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:584

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:276

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:1392

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
C:\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
C:\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
\Users\Public\vbc.exe
MD5
04179ebbab706ca5b7d7eda0becd3abc

SHA1
db984084a4cb93805c8d15571430b0561495fa98

SHA256
abaca5741431ff5f4d04ac153e6d06514d1a7d92154d9ae994d253297f582930

SHA512
75a2ecf6e07d565ca15d35740dd672bd1287436fbccad93848bd6b381ca21e22f5ce5c4e75e8f1392c11121cecea33670c42519b39cb0c8e80adf3c606f9366b

Download Submit
memory/276-75-0x0000000004590000-0x00000000045F6000-memory.dmp

Filesize
408KB

Download
memory/276-76-0x0000000000BE0000-0x0000000000C11000-memory.dmp

Filesize
196KB

Download
memory/276-68-0x0000000000000000-mapping.dmp

Download
memory/276-71-0x0000000001050000-0x0000000001051000-memory.dmp

Filesize
4KB

Download
memory/276-73-0x0000000004B60000-0x0000000004B61000-memory.dmp

Filesize
4KB

Download
memory/276-74-0x0000000000650000-0x0000000000666000-memory.dmp

Filesize
88KB

Download
memory/584-63-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download
memory/984-85-0x000000006C391000-0x000000006C393000-memory.dmp

Filesize
8KB

Download
memory/984-83-0x0000000000000000-mapping.dmp

Download
memory/984-90-0x0000000002220000-0x00000000022AF000-memory.dmp

Filesize
572KB

Download
memory/984-89-0x00000000023B0000-0x00000000026B3000-memory.dmp

Filesize
3.0MB

Download
memory/984-88-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/984-87-0x0000000000B90000-0x0000000000E11000-memory.dmp

Filesize
2.5MB

Download
memory/1220-91-0x0000000003B80000-0x0000000003C64000-memory.dmp

Filesize
912KB

Download
memory/1220-82-0x0000000006F60000-0x000000000709D000-memory.dmp

Filesize
1.2MB

Download
memory/1392-81-0x00000000000B0000-0x00000000000C0000-memory.dmp

Filesize
64KB

Download
memory/1392-80-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1392-78-0x000000000041D150-mapping.dmp

Download
memory/1392-77-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1784-86-0x0000000000000000-mapping.dmp

Download
memory/2016-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2016-60-0x000000002F6F1000-0x000000002F6F4000-memory.dmp

Filesize
12KB

Download
memory/2016-61-0x0000000070F81000-0x0000000070F83000-memory.dmp

Filesize
8KB

Download
memory/2016-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads