formbook | 04565d469f7088f9fb122dd3b42274a84bdc1650156a815420381ef770e4373e

General

Target

RFQ ORDER LIST.xlsx
Size

2.4MB
MD5

7046895bf66247768d0ea01820e10bd7
SHA1

6a8dd66b8cb3a4abff011d80c2ce92cae5376a76
SHA256

04565d469f7088f9fb122dd3b42274a84bdc1650156a815420381ef770e4373e
SHA512

9ee04cae283b8f5edc7cfd14afe82f62266db71c8a1d8ce131b90b1832b17f02ba624caac95e1148b6b5265dcbd76e3130d90c238152adae5efb435ad49010a2

Score

10^/10

formbook xloader loader rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

C2

http://www.hitchhikerfab.com/qjnt/

Decoy

silverlakesfootball.com

drivebymovie.com

precisedirections.com

xn--01-mlcpq1abi.xn--p1acf

landhubturkey.com

andronomicon.com

kindlyhomecare.com

tyequip.com

planfra.com

wy1197.com

blackcatbaker.com

ddhhynjy.com

sales-altigen.com

valerielimozin.com

walmamall.com

quishkambalito.com

gnbsuvm.icu

milanostorear.com

olympiaopen.com

zradydlyazhinok-ua.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1152-16-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1152-17-0x000000000041D030-mapping.dmp	xloader
behavioral1/memory/1132-20-0x00000000002B0000-0x00000000002DA000-memory.dmp	xloader
behavioral1/memory/792-29-0x00000000000C0000-0x00000000000E8000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1704 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1132 vbc.exe
1152 vbc.exe

flow	pid	process
7	1704	EQNEDT32.EXE

pid	process
1132	vbc.exe
1152	vbc.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
\Users\Public\vbc.exe	upx
\Users\Public\vbc.exe	upx
\Users\Public\vbc.exe	upx
\Users\Public\vbc.exe	upx
\Users\Public\vbc.exe	upx
C:\Users\Public\vbc.exe	upx
C:\Users\Public\vbc.exe	upx
C:\Users\Public\vbc.exe	upx

Loads dropped DLL 5 IoCs

Processes:

EQNEDT32.EXE

pid process

1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
1704 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE
1704	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exerundll32.exe

description	pid	process	target process
PID 1132 set thread context of 1152	1132	vbc.exe	vbc.exe
PID 1152 set thread context of 1256	1152	vbc.exe	Explorer.EXE
PID 792 set thread context of 1256	792	rundll32.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

1704 EQNEDT32.EXE

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

pid	process
1704	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-1-5-21-3825035466-2522850611-591511364-1000\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 (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
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\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE

pid	process
1096	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

vbc.exerundll32.exe

pid	process
1152	vbc.exe
1152	vbc.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe
792	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exerundll32.exe

pid process

1152 vbc.exe
1152 vbc.exe
1152 vbc.exe
792 rundll32.exe
792 rundll32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exerundll32.exe

description pid process

Token: SeDebugPrivilege 1152 vbc.exe
Token: SeDebugPrivilege 792 rundll32.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE
1096 EXCEL.EXE
1096 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1152	vbc.exe
Token: SeDebugPrivilege	792	rundll32.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1096	EXCEL.EXE
1096	EXCEL.EXE
1096	EXCEL.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1704 wrote to memory of 1132	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 1132	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 1132	1704	EQNEDT32.EXE	vbc.exe
PID 1704 wrote to memory of 1132	1704	EQNEDT32.EXE	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1132 wrote to memory of 1152	1132	vbc.exe	vbc.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 1256 wrote to memory of 792	1256	Explorer.EXE	rundll32.exe
PID 792 wrote to memory of 1604	792	rundll32.exe	cmd.exe
PID 792 wrote to memory of 1604	792	rundll32.exe	cmd.exe
PID 792 wrote to memory of 1604	792	rundll32.exe	cmd.exe
PID 792 wrote to memory of 1604	792	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:1256

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\RFQ ORDER LIST.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1096

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:792

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1604

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:1704

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1132

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:1152

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
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
C:\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
C:\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
\Users\Public\vbc.exe
MD5
4755bdfa1fb87c626856b33c48419201

SHA1
c174cf847aa3e0a06128626c13608a3a5421e0f4

SHA256
d81f4b6a0b8650415e2c2acfe4ee223f6826b3b6849393f4de2db4f3a814beaf

SHA512
d7e982eb367ee0813dcdb92604f3f444c88603dc1aa6c5c14d397d7a43dfbedc7ee9280b3674a8715c4cab8c24176f4efa24d5cf206596b5e21cdc40c467c5ca

Download Submit
memory/792-30-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/792-28-0x00000000000B0000-0x00000000000BE000-memory.dmp

Filesize
56KB

Download
memory/792-31-0x0000000001D40000-0x0000000001DCF000-memory.dmp

Filesize
572KB

Download
memory/792-25-0x0000000000000000-mapping.dmp

Download
memory/792-29-0x00000000000C0000-0x00000000000E8000-memory.dmp

Filesize
160KB

Download
memory/1096-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1096-2-0x000000002F371000-0x000000002F374000-memory.dmp

Filesize
12KB

Download
memory/1096-3-0x0000000071B21000-0x0000000071B23000-memory.dmp

Filesize
8KB

Download
memory/1132-12-0x0000000000000000-mapping.dmp

Download
memory/1132-14-0x0000000004DF0000-0x0000000004E01000-memory.dmp

Filesize
68KB

Download
memory/1132-19-0x0000000000020000-0x0000000000040000-memory.dmp

Filesize
128KB

Download
memory/1132-20-0x00000000002B0000-0x00000000002DA000-memory.dmp

Filesize
168KB

Download
memory/1152-16-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1152-22-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1152-23-0x0000000000290000-0x00000000002A0000-memory.dmp

Filesize
64KB

Download
memory/1152-17-0x000000000041D030-mapping.dmp

Download
memory/1216-6-0x000007FEF8040000-0x000007FEF82BA000-memory.dmp

Filesize
2.5MB

Download
memory/1256-24-0x0000000004060000-0x000000000412C000-memory.dmp

Filesize
816KB

Download
memory/1256-32-0x0000000006340000-0x000000000645F000-memory.dmp

Filesize
1.1MB

Download
memory/1604-27-0x0000000000000000-mapping.dmp

Download
memory/1704-5-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads