formbook | 19400ad90a61f870637312b6f21305829b608cdde97e80904df1adb07793c733

General

Target

VM ASIAN CHAMPION.xlsx
Size

2.3MB
MD5

70e08fe3de511ea1c49386b235f29787
SHA1

9f2bd146123e5f51b40300146c0151b11c84e7b2
SHA256

19400ad90a61f870637312b6f21305829b608cdde97e80904df1adb07793c733
SHA512

8994961b3d40af1b416cfb48bb403d87df36e132730020cdee48ffdcad378ab94480c14189c68458ec56aa194dcfcb4fd62b77d48da723bb72ceb0db4410b512

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.thejusticeadvantageseminars.com/qccq/

Decoy

webuynyhouses.com

love-nepal.com

gardening-mistakes.com

495honda.com

newcuus.com

alefinvest.com

delhikigully.com

aznri4z9gtky4.net

hanswiemannbyaderans.com

mecaldiesel.com

akshen.net

y-agency.net

ahrohishrestha.com

arthalvorsonforcongress.com

mvmcompany.net

qyjjsk.com

yescoop.com

esergedrghwebrgqrq.xyz

kellyharmonedconsulting.com

deliciosatentacion.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/316-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/316-16-0x000000000041D100-mapping.dmp	xloader
behavioral1/memory/1692-18-0x0000000000000000-mapping.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1832 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

1416 vbc.exe
316 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1832 EQNEDT32.EXE
1832 EQNEDT32.EXE
1832 EQNEDT32.EXE
1832 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1832	EQNEDT32.EXE

pid	process
1416	vbc.exe
316	vbc.exe

pid	process
1832	EQNEDT32.EXE
1832	EQNEDT32.EXE
1832	EQNEDT32.EXE
1832	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

vbc.exevbc.exewlanext.exe

description	pid	process	target process
PID 1416 set thread context of 316	1416	vbc.exe	vbc.exe
PID 316 set thread context of 1244	316	vbc.exe	Explorer.EXE
PID 316 set thread context of 1244	316	vbc.exe	Explorer.EXE
PID 1692 set thread context of 1244	1692	wlanext.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

1832 EQNEDT32.EXE

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

pid	process
1832	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\Toolbar	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\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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE

pid	process
848	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.exewlanext.exe

pid	process
316	vbc.exe
316	vbc.exe
316	vbc.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe
1692	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

vbc.exewlanext.exe

pid process

316 vbc.exe
316 vbc.exe
316 vbc.exe
316 vbc.exe
1692 wlanext.exe
1692 wlanext.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exewlanext.exe

description pid process

Token: SeDebugPrivilege 316 vbc.exe
Token: SeDebugPrivilege 1692 wlanext.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1244 Explorer.EXE
1244 Explorer.EXE
1244 Explorer.EXE
1244 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1244 Explorer.EXE
1244 Explorer.EXE
1244 Explorer.EXE
1244 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

848 EXCEL.EXE
848 EXCEL.EXE
848 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	316	vbc.exe
Token: SeDebugPrivilege	1692	wlanext.exe

pid	process
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE

pid	process
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE
1244	Explorer.EXE

pid	process
848	EXCEL.EXE
848	EXCEL.EXE
848	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 1832 wrote to memory of 1416	1832	EQNEDT32.EXE	vbc.exe
PID 1832 wrote to memory of 1416	1832	EQNEDT32.EXE	vbc.exe
PID 1832 wrote to memory of 1416	1832	EQNEDT32.EXE	vbc.exe
PID 1832 wrote to memory of 1416	1832	EQNEDT32.EXE	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1416 wrote to memory of 316	1416	vbc.exe	vbc.exe
PID 1244 wrote to memory of 1692	1244	Explorer.EXE	wlanext.exe
PID 1244 wrote to memory of 1692	1244	Explorer.EXE	wlanext.exe
PID 1244 wrote to memory of 1692	1244	Explorer.EXE	wlanext.exe
PID 1244 wrote to memory of 1692	1244	Explorer.EXE	wlanext.exe
PID 1692 wrote to memory of 1312	1692	wlanext.exe	cmd.exe
PID 1692 wrote to memory of 1312	1692	wlanext.exe	cmd.exe
PID 1692 wrote to memory of 1312	1692	wlanext.exe	cmd.exe
PID 1692 wrote to memory of 1312	1692	wlanext.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:1244

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\VM ASIAN CHAMPION.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:848

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1312

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:1832

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1416

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:316

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
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
C:\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
C:\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
\Users\Public\vbc.exe
MD5
bdcead3de71d101dc2d02676be1c9df5

SHA1
77d0bbdcace2954887ada67d2f6e4fa00c120a78

SHA256
468a5fa19b50d02ae7d842b9892e4406bc523371b64ae599517ec04a2ec5abc7

SHA512
aa3203081a1e506bc09c2d7b9f0200dfa5305224525f7aa14c9869303149b2d429a19287adca0e34aaddef92114446e9b6a0ef5fca8cf20edbadd8934a9ba044

Download Submit
memory/316-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/316-16-0x000000000041D100-mapping.dmp

Download
memory/1312-20-0x0000000000000000-mapping.dmp

Download
memory/1416-10-0x000000006C860000-0x000000006CF4E000-memory.dmp

Filesize
6.9MB

Download
memory/1416-11-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/1416-13-0x0000000000520000-0x000000000052E000-memory.dmp

Filesize
56KB

Download
memory/1416-14-0x00000000056E0000-0x0000000005770000-memory.dmp

Filesize
576KB

Download
memory/1416-7-0x0000000000000000-mapping.dmp

Download
memory/1488-2-0x000007FEF6460000-0x000007FEF66DA000-memory.dmp

Filesize
2.5MB

Download
memory/1692-18-0x0000000000000000-mapping.dmp

Download
memory/1692-19-0x0000000000B50000-0x0000000000B66000-memory.dmp

Filesize
88KB

Download
memory/1692-21-0x00000000042C0000-0x0000000004434000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads