formbook | f11ea6a7155be75272d56249aaacd080aa834c25bc672cff5f88e1fcf7617b2c

General

Target

Payment Advice.xlsx
Size

2.1MB
MD5

ad384e8c8855bc77a4e28d48fe1ceda1
SHA1

2f5811ece35653b1385604d1c98c7571e664674d
SHA256

f11ea6a7155be75272d56249aaacd080aa834c25bc672cff5f88e1fcf7617b2c
SHA512

353536fbaec562b2e989d243529791cdb37dc65b9fa66605599d6ac1ca95fe0bd844f11ba0e9942711f3738e4d55efda10348ec8e1eb2506aae0e556e7f12aee

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.learnhour.net/eaud/

Decoy

modshiro.com

mademarketingoss.com

austinjourls.info

wayupteam.com

crossingfinger.com

interseptors.com

gigashit.com

livetigo.com

halamankuningindonesia.com

windhammills.com

aylinahmet.com

mbacexonan.website

shopboxbarcelona.com

youyeslive.com

coonlinesportsbooks.com

guorunme.com

putlocker2.site

pencueaidnetwork.com

likevector.com

vulcanudachi-proclub.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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1032-15-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1032-16-0x000000000041D030-mapping.dmp	xloader
behavioral1/memory/1600-19-0x0000000000000000-mapping.dmp	xloader

Blocklisted process makes network request 2 IoCs

Processes:

EQNEDT32.EXEwscript.exe

flow pid process

7 1976 EQNEDT32.EXE
20 1600 wscript.exe
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

676 vbc.exe
1032 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1976 EQNEDT32.EXE
1976 EQNEDT32.EXE
1976 EQNEDT32.EXE
1976 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
7	1976	EQNEDT32.EXE
20	1600	wscript.exe

pid	process
676	vbc.exe
1032	vbc.exe

pid	process
1976	EQNEDT32.EXE
1976	EQNEDT32.EXE
1976	EQNEDT32.EXE
1976	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exewscript.exe

description	pid	process	target process
PID 676 set thread context of 1032	676	vbc.exe	vbc.exe
PID 1032 set thread context of 1196	1032	vbc.exe	Explorer.EXE
PID 1032 set thread context of 1196	1032	vbc.exe	Explorer.EXE
PID 1600 set thread context of 1196	1600	wscript.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

1976 EQNEDT32.EXE

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

pid	process
1976	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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1832 EXCEL.EXE

pid	process
1832	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

vbc.exewscript.exe

pid	process
1032	vbc.exe
1032	vbc.exe
1032	vbc.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe
1600	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exewscript.exe

pid process

1032 vbc.exe
1032 vbc.exe
1032 vbc.exe
1032 vbc.exe
1600 wscript.exe
1600 wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exewscript.exe

description pid process

Token: SeDebugPrivilege 1032 vbc.exe
Token: SeDebugPrivilege 1600 wscript.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1832 EXCEL.EXE
1832 EXCEL.EXE
1832 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1032	vbc.exe
Token: SeDebugPrivilege	1600	wscript.exe

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1832	EXCEL.EXE
1832	EXCEL.EXE
1832	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 1976 wrote to memory of 676	1976	EQNEDT32.EXE	vbc.exe
PID 1976 wrote to memory of 676	1976	EQNEDT32.EXE	vbc.exe
PID 1976 wrote to memory of 676	1976	EQNEDT32.EXE	vbc.exe
PID 1976 wrote to memory of 676	1976	EQNEDT32.EXE	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 676 wrote to memory of 1032	676	vbc.exe	vbc.exe
PID 1196 wrote to memory of 1600	1196	Explorer.EXE	wscript.exe
PID 1196 wrote to memory of 1600	1196	Explorer.EXE	wscript.exe
PID 1196 wrote to memory of 1600	1196	Explorer.EXE	wscript.exe
PID 1196 wrote to memory of 1600	1196	Explorer.EXE	wscript.exe
PID 1600 wrote to memory of 556	1600	wscript.exe	cmd.exe
PID 1600 wrote to memory of 556	1600	wscript.exe	cmd.exe
PID 1600 wrote to memory of 556	1600	wscript.exe	cmd.exe
PID 1600 wrote to memory of 556	1600	wscript.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:1196

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\Payment Advice.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1832

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.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:1600

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:556

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:1976

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

C:\Users\Public\vbc.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1032

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
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
C:\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
C:\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
\Users\Public\vbc.exe
MD5
93c377f5008833ebaf3f50983084a0e5

SHA1
0fe9b1de40e7f16c6b4654549a035e363f7844f5

SHA256
edcbf58883f09441ef7eb461421b7ec33655663420ba2722ef5c45b62600f25c

SHA512
ef08c4d8f766bf231b9bfaf2c7e8e6ed7470b7487886fe6859fef63040d754658b4cb6d6c05cbbfc2ddcafd03a8f61eb7530746d2df7a73c39482b2123380fa9

Download Submit
memory/524-2-0x000007FEF7880000-0x000007FEF7AFA000-memory.dmp

Filesize
2.5MB

Download
memory/556-21-0x0000000000000000-mapping.dmp

Download
memory/676-13-0x0000000000390000-0x000000000039E000-memory.dmp

Filesize
56KB

Download
memory/676-11-0x0000000000B70000-0x0000000000B71000-memory.dmp

Filesize
4KB

Download
memory/676-14-0x0000000005330000-0x00000000053A6000-memory.dmp

Filesize
472KB

Download
memory/676-10-0x000000006C1B0000-0x000000006C89E000-memory.dmp

Filesize
6.9MB

Download
memory/676-7-0x0000000000000000-mapping.dmp

Download
memory/1032-15-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1032-16-0x000000000041D030-mapping.dmp

Download
memory/1196-18-0x0000000004830000-0x0000000004969000-memory.dmp

Filesize
1.2MB

Download
memory/1600-19-0x0000000000000000-mapping.dmp

Download
memory/1600-20-0x0000000000180000-0x00000000001A6000-memory.dmp

Filesize
152KB

Download
memory/1600-22-0x0000000004710000-0x000000000488D000-memory.dmp

Filesize
1.5MB

Download
memory/1600-23-0x000000006D120000-0x000000006D128000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads