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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1236-66-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1288-75-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1772 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1128 vbc.exe
1236 vbc.exe
Loads dropped DLL 3 IoCs

Processes:

EQNEDT32.EXE

pid process

1772 EQNEDT32.EXE
1772 EQNEDT32.EXE
1772 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1772	EQNEDT32.EXE

pid	process
1128	vbc.exe
1236	vbc.exe

pid	process
1772	EQNEDT32.EXE
1772	EQNEDT32.EXE
1772	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.execmd.exe

description	pid	process	target process
PID 1128 set thread context of 1236	1128	vbc.exe	vbc.exe
PID 1236 set thread context of 1280	1236	vbc.exe	Explorer.EXE
PID 1288 set thread context of 1280	1288	cmd.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

1772 EQNEDT32.EXE

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

pid	process
1772	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
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
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\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
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\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1032 EXCEL.EXE

pid	process
1032	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

vbc.execmd.exe

pid	process
1236	vbc.exe
1236	vbc.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe
1288	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1280 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exevbc.execmd.exe

pid process

1128 vbc.exe
1236 vbc.exe
1236 vbc.exe
1236 vbc.exe
1288 cmd.exe
1288 cmd.exe

pid	process
1128	vbc.exe
1236	vbc.exe
1236	vbc.exe
1236	vbc.exe
1288	cmd.exe
1288	cmd.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

vbc.exeExplorer.EXEcmd.exe

description	pid	process
Token: SeDebugPrivilege	1236	vbc.exe
Token: SeShutdownPrivilege	1280	Explorer.EXE
Token: SeShutdownPrivilege	1280	Explorer.EXE
Token: SeDebugPrivilege	1288	cmd.exe
Token: SeShutdownPrivilege	1280	Explorer.EXE
Token: SeShutdownPrivilege	1280	Explorer.EXE

Suspicious use of FindShellTrayWindow 58 IoCs

Processes:

Explorer.EXE

pid	process
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE

Suspicious use of SendNotifyMessage 58 IoCs

Processes:

Explorer.EXE

pid	process
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE
1280	Explorer.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE

pid	process
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXE

description	pid	process	target process
PID 1772 wrote to memory of 1128	1772	EQNEDT32.EXE	vbc.exe
PID 1772 wrote to memory of 1128	1772	EQNEDT32.EXE	vbc.exe
PID 1772 wrote to memory of 1128	1772	EQNEDT32.EXE	vbc.exe
PID 1772 wrote to memory of 1128	1772	EQNEDT32.EXE	vbc.exe
PID 1128 wrote to memory of 1236	1128	vbc.exe	vbc.exe
PID 1128 wrote to memory of 1236	1128	vbc.exe	vbc.exe
PID 1128 wrote to memory of 1236	1128	vbc.exe	vbc.exe
PID 1128 wrote to memory of 1236	1128	vbc.exe	vbc.exe
PID 1128 wrote to memory of 1236	1128	vbc.exe	vbc.exe
PID 1280 wrote to memory of 1288	1280	Explorer.EXE	cmd.exe
PID 1280 wrote to memory of 1288	1280	Explorer.EXE	cmd.exe
PID 1280 wrote to memory of 1288	1280	Explorer.EXE	cmd.exe
PID 1280 wrote to memory of 1288	1280	Explorer.EXE	cmd.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
- Suspicious use of WriteProcessMemory
PID:1280

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:1032

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1288

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:1772

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:1128

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:1236

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

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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/1032-70-0x0000000005D40000-0x000000000698A000-memory.dmp

Filesize
12.3MB

Download
memory/1032-80-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1032-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1032-54-0x0000000070E41000-0x0000000070E43000-memory.dmp

Filesize
8KB

Download
memory/1032-72-0x0000000005D40000-0x000000000698A000-memory.dmp

Filesize
12.3MB

Download
memory/1032-71-0x0000000005D40000-0x000000000698A000-memory.dmp

Filesize
12.3MB

Download
memory/1032-53-0x000000002F1D1000-0x000000002F1D4000-memory.dmp

Filesize
12KB

Download
memory/1128-60-0x0000000000000000-mapping.dmp

Download
memory/1128-65-0x0000000000280000-0x0000000000282000-memory.dmp

Filesize
8KB

Download
memory/1236-68-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/1236-63-0x000000000041D0B0-mapping.dmp

Download
memory/1236-66-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1236-67-0x0000000000A60000-0x0000000000D63000-memory.dmp

Filesize
3.0MB

Download
memory/1280-69-0x00000000049F0000-0x0000000004B00000-memory.dmp

Filesize
1.1MB

Download
memory/1280-82-0x000007FF3A0F0000-0x000007FF3A0FA000-memory.dmp

Filesize
40KB

Download
memory/1280-81-0x000007FEF5F80000-0x000007FEF60C3000-memory.dmp

Filesize
1.3MB

Download
memory/1280-79-0x00000000061F0000-0x0000000006284000-memory.dmp

Filesize
592KB

Download
memory/1288-73-0x0000000000000000-mapping.dmp

Download
memory/1288-78-0x0000000001CE0000-0x0000000001D6F000-memory.dmp

Filesize
572KB

Download
memory/1288-76-0x0000000001E70000-0x0000000002173000-memory.dmp

Filesize
3.0MB

Download
memory/1288-74-0x000000004A040000-0x000000004A08C000-memory.dmp

Filesize
304KB

Download
memory/1288-75-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1772-56-0x0000000075B51000-0x0000000075B53000-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