xloader | 6c4a9d2d18a36740205a4171dd7b9b0ba89ed3f965a5b56391d582925408956f

General

Target

Additional Order Qty 197.xlsx
Size

587KB
MD5

58722230e2588518dee806fe73c6948b
SHA1

dcf0f2b354c48b17ce02fbb97a503b97fa581064
SHA256

6c4a9d2d18a36740205a4171dd7b9b0ba89ed3f965a5b56391d582925408956f
SHA512

ef1a9edd4f6db5c247744aeead2be9f8ca8ee3d931d0bc777ccb332f385840c0d51f6ea96f579a00703546aeef13109dc568479f2ae94616f584eacb8d3bc019

Score

10^/10

xloader b6a4 loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

b6a4

C2

http://www.helpmovingandstorage.com/b6a4/

Decoy

gr2future.com

asteroid.finance

skoba-plast.com

rnerfrfw5z3ki.net

thesmartroadtoretirement.com

avisdrummondhomes.com

banban365.net

profesyonelkampcadiri.net

royalloanhs.com

yulujy.com

xn--naqejahan-n3b.com

msalee.net

dollyvee.com

albertagamehawkersclub.com

cbspecialists.com

findingforeverrealty.com

mrtireshop.com

wadamasanari.com

growtechinfo.com

qipai039.com

Signatures

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

Xloader Payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2000-66-0x0000000000400000-0x0000000000429000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

8 696 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

676 vbc.exe
2000 vbc.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXE

pid process

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

Scripting
T1064
Suspicious use of SetThreadContext 2 IoCs

Processes:

vbc.exemsiexec.exe

description pid process target process

PID 676 set thread context of 2000 676 vbc.exe vbc.exe
PID 1768 set thread context of 1212 1768 msiexec.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

696 EQNEDT32.EXE

flow	pid	process
8	696	EQNEDT32.EXE

pid	process
676	vbc.exe
2000	vbc.exe

pid	process
696	EQNEDT32.EXE
696	EQNEDT32.EXE
696	EQNEDT32.EXE

description	pid	process	target process
PID 676 set thread context of 2000	676	vbc.exe	vbc.exe
PID 1768 set thread context of 1212	1768	msiexec.exe	Explorer.EXE

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

pid	process
696	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-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\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-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\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-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1148 EXCEL.EXE

pid	process
1148	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

msiexec.exe

pid	process
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

vbc.exemsiexec.exe

pid process

676 vbc.exe
1768 msiexec.exe
1768 msiexec.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

msiexec.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1768 msiexec.exe
Token: SeShutdownPrivilege 1212 Explorer.EXE
Token: SeShutdownPrivilege 1212 Explorer.EXE
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1148 EXCEL.EXE
1148 EXCEL.EXE
1148 EXCEL.EXE
1148 EXCEL.EXE
1148 EXCEL.EXE

pid	process
1212	Explorer.EXE

pid	process
676	vbc.exe
1768	msiexec.exe
1768	msiexec.exe

description	pid	process
Token: SeDebugPrivilege	1768	msiexec.exe
Token: SeShutdownPrivilege	1212	Explorer.EXE
Token: SeShutdownPrivilege	1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1148	EXCEL.EXE
1148	EXCEL.EXE
1148	EXCEL.EXE
1148	EXCEL.EXE
1148	EXCEL.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

EQNEDT32.EXEvbc.exe

description	pid	process	target process
PID 696 wrote to memory of 676	696	EQNEDT32.EXE	vbc.exe
PID 696 wrote to memory of 676	696	EQNEDT32.EXE	vbc.exe
PID 696 wrote to memory of 676	696	EQNEDT32.EXE	vbc.exe
PID 696 wrote to memory of 676	696	EQNEDT32.EXE	vbc.exe
PID 676 wrote to memory of 2000	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 2000	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 2000	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 2000	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 2000	676	vbc.exe	vbc.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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\Additional Order Qty 197.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1148

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1768

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:696

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:676

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
PID:2000

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
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
C:\Users\Public\vbc.exe
MD5
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
C:\Users\Public\vbc.exe
MD5
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
\Users\Public\vbc.exe
MD5
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
\Users\Public\vbc.exe
MD5
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
\Users\Public\vbc.exe
MD5
2a59d2396654692dc87a81df7554b608

SHA1
a545b6bc8ab5afd12feb22686af50f4075fb61cd

SHA256
04e98a900ca361b68ebcfbad6453ddc626d93c8afb13916c18dd0e9648187566

SHA512
a612f5fe059baf09f6aa30c7a41c9c00d225f326d5d6a10476aa1969c2e0ce3c39986b519ff77be787a61695d71e2fc18766ea9f93509332096c0d7e613cbea8

Download Submit
memory/676-65-0x0000000000140000-0x0000000000142000-memory.dmp

Filesize
8KB

Download
memory/676-60-0x0000000000000000-mapping.dmp

Download
memory/696-56-0x0000000076581000-0x0000000076583000-memory.dmp

Filesize
8KB

Download
memory/1148-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1148-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1148-53-0x000000002FC71000-0x000000002FC74000-memory.dmp

Filesize
12KB

Download
memory/1148-68-0x0000000005673000-0x0000000005675000-memory.dmp

Filesize
8KB

Download
memory/1148-67-0x0000000005670000-0x0000000005673000-memory.dmp

Filesize
12KB

Download
memory/1148-69-0x0000000005675000-0x0000000005677000-memory.dmp

Filesize
8KB

Download
memory/1148-54-0x0000000071501000-0x0000000071503000-memory.dmp

Filesize
8KB

Download
memory/1212-74-0x00000000069A0000-0x0000000006AB0000-memory.dmp

Filesize
1.1MB

Download
memory/1768-72-0x00000000021D0000-0x00000000024D3000-memory.dmp

Filesize
3.0MB

Download
memory/1768-73-0x0000000002040000-0x00000000020CF000-memory.dmp

Filesize
572KB

Download
memory/2000-63-0x000000000041D0B0-mapping.dmp

Download
memory/2000-66-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads