xloader | 2c0625d46a85f0cf4b43e08abe30cb4ea591cc0a84d9414ec21fda75bef47484

General

Target

RF-E68-STD-081.xlsx
Size

2.2MB
MD5

f0a960b15283f180e599491eb1e56be7
SHA1

0477ad566347e79c96b79cbe3bc44ae9b4edcef2
SHA256

2c0625d46a85f0cf4b43e08abe30cb4ea591cc0a84d9414ec21fda75bef47484
SHA512

3ccf50cbf107bf30dcf96a60e11ae2e177e998bd31cfa7857746f8aa69a34c79ebff837f20230235128079fcc94750ad2fe7ee03f9e1a95d09d7b2251af0ed21

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

C2

http://www.856380692.xyz/nsag/

Decoy

usopencoverage.com

5bo5j.com

deliveryourvote.com

bestbuycarpethd.com

worldsourcecloud.com

glowtheblog.com

translations.tools

ithacapella.com

machinerysubway.com

aashlokhospitals.com

athara-kiano.com

anabittencourt.com

hakimkhawatmi.com

fashionwatchesstore.com

krishnagiri.info

tencenttexts.com

kodairo.com

ouitum.club

robertbeauford.net

polling.asia

Signatures

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

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/744-17-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1716-27-0x0000000000090000-0x00000000000B8000-memory.dmp	xloader

Blocklisted process makes network request 4 IoCs

Processes:

EQNEDT32.EXErundll32.exe

flow pid process

6 1908 EQNEDT32.EXE
8 1908 EQNEDT32.EXE
15 1716 rundll32.exe
33 1716 rundll32.exe
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

884 vbc.exe
744 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXEvbc.exe

pid process

1908 EQNEDT32.EXE
1908 EQNEDT32.EXE
1908 EQNEDT32.EXE
884 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1908	EQNEDT32.EXE
8	1908	EQNEDT32.EXE
15	1716	rundll32.exe
33	1716	rundll32.exe

pid	process
1908	EQNEDT32.EXE
1908	EQNEDT32.EXE
1908	EQNEDT32.EXE
884	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exerundll32.exe

description	pid	process	target process
PID 884 set thread context of 744	884	vbc.exe	vbc.exe
PID 744 set thread context of 1268	744	vbc.exe	Explorer.EXE
PID 744 set thread context of 1268	744	vbc.exe	Explorer.EXE
PID 1716 set thread context of 1268	1716	rundll32.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NSIS installer 12 IoCs

installer

Processes:

resource	yara_rule
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
\Users\Public\vbc.exe	nsis_installer_1
\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2
C:\Users\Public\vbc.exe	nsis_installer_1
C:\Users\Public\vbc.exe	nsis_installer_2

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

1908 EQNEDT32.EXE

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

pid	process
1908	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE

pid	process
292	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

vbc.exevbc.exerundll32.exe

pid	process
884	vbc.exe
884	vbc.exe
884	vbc.exe
884	vbc.exe
744	vbc.exe
744	vbc.exe
744	vbc.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe
1716	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

vbc.exevbc.exerundll32.exe

pid process

884 vbc.exe
744 vbc.exe
744 vbc.exe
744 vbc.exe
744 vbc.exe
1716 rundll32.exe
1716 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exerundll32.exe

description pid process

Token: SeDebugPrivilege 744 vbc.exe
Token: SeDebugPrivilege 1716 rundll32.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

292 EXCEL.EXE
292 EXCEL.EXE
292 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	744	vbc.exe
Token: SeDebugPrivilege	1716	rundll32.exe

pid	process
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
292	EXCEL.EXE
292	EXCEL.EXE
292	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1908 wrote to memory of 884	1908	EQNEDT32.EXE	vbc.exe
PID 1908 wrote to memory of 884	1908	EQNEDT32.EXE	vbc.exe
PID 1908 wrote to memory of 884	1908	EQNEDT32.EXE	vbc.exe
PID 1908 wrote to memory of 884	1908	EQNEDT32.EXE	vbc.exe
PID 884 wrote to memory of 744	884	vbc.exe	vbc.exe
PID 884 wrote to memory of 744	884	vbc.exe	vbc.exe
PID 884 wrote to memory of 744	884	vbc.exe	vbc.exe
PID 884 wrote to memory of 744	884	vbc.exe	vbc.exe
PID 884 wrote to memory of 744	884	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1268 wrote to memory of 1716	1268	Explorer.EXE	rundll32.exe
PID 1716 wrote to memory of 1360	1716	rundll32.exe	cmd.exe
PID 1716 wrote to memory of 1360	1716	rundll32.exe	cmd.exe
PID 1716 wrote to memory of 1360	1716	rundll32.exe	cmd.exe
PID 1716 wrote to memory of 1360	1716	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268
- 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\RF-E68-STD-081.xlsx
  2⤵
  - Enumerates system info in registry
  - Modifies Internet Explorer settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:292
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1584
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1424
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1840
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1928
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1716
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Public\vbc.exe"
    3⤵
    PID:1360

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:1908
- C:\Users\Public\vbc.exe
  "C:\Users\Public\vbc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:884
- - 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:744

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\vbc.exe

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

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

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

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

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

Download Submit
\Users\Admin\AppData\Local\Temp\nsi3757.tmp\0ps12v89.dll

MD5
4ad8a4a30a1cc665078b16cebcc04ae3

SHA1
fa62f869142deb3ab2c83e2d80be9030363aa443

SHA256
d080eadcd3766d785ab5cdebc15e67f4b18027241aa724b5581b68d26229cb06

SHA512
4b0bd177f13eae8f2762ca291ecfc9a4b95bc22795920259e8646d9912d547a3994525762bcfb66036e4a1cab155b32d694ef43ec6c4a3999b40f05a82711da0

Download Submit
\Users\Public\vbc.exe

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

Download Submit
\Users\Public\vbc.exe

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

Download Submit
\Users\Public\vbc.exe

MD5
7b6e0668659b20f30bdf81025247a199

SHA1
27f1e8665c5423b43a5ad11a7d3762c539fbef9c

SHA256
34066150ffa7efa505b8d2246925cd8a32f83b9609438ae76aa27cef7388054d

SHA512
62b1bb025e1ba2969dbed85c6c96ef4f0c78fc9c58db4442c441f70a6587e9e3421717c67c12ffd95f0e7347b941fd389cadc97be4cac612e02f71388e2e05b4

Download Submit
memory/292-3-0x0000000071CE1000-0x0000000071CE3000-memory.dmp

Filesize
8KB

Download
memory/292-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/292-2-0x000000002F561000-0x000000002F564000-memory.dmp

Filesize
12KB

Download
memory/744-15-0x000000000041D000-mapping.dmp

Download
memory/744-19-0x00000000002A0000-0x00000000002B0000-memory.dmp

Filesize
64KB

Download
memory/744-21-0x0000000000360000-0x0000000000370000-memory.dmp

Filesize
64KB

Download
memory/744-17-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/744-18-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/884-10-0x0000000000000000-mapping.dmp

Download
memory/1268-22-0x0000000004F80000-0x0000000005096000-memory.dmp

Filesize
1.1MB

Download
memory/1268-20-0x0000000004120000-0x000000000420D000-memory.dmp

Filesize
948KB

Download
memory/1268-30-0x00000000069C0000-0x0000000006AF3000-memory.dmp

Filesize
1.2MB

Download
memory/1360-25-0x0000000000000000-mapping.dmp

Download
memory/1716-23-0x0000000000000000-mapping.dmp

Download
memory/1716-26-0x0000000000E20000-0x0000000000E2E000-memory.dmp

Filesize
56KB

Download
memory/1716-27-0x0000000000090000-0x00000000000B8000-memory.dmp

Filesize
160KB

Download
memory/1716-28-0x0000000002230000-0x0000000002533000-memory.dmp

Filesize
3.0MB

Download
memory/1716-29-0x0000000000460000-0x00000000004EF000-memory.dmp

Filesize
572KB

Download
memory/1848-6-0x000007FEF6B80000-0x000007FEF6DFA000-memory.dmp

Filesize
2.5MB

Download
memory/1908-5-0x0000000076861000-0x0000000076863000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads