formbook | cafc9b500bdf7058b0d77f43d5aad253eb30347d483bc9b7a507f66503d04934

General

Target

VM ASIAN CHAMPION.xlsx
Size

1.8MB
MD5

fa54fb8f1e2cb91097b66edc81c16764
SHA1

249aee08a090bb6c57816dce20ca968fc1a7c8d6
SHA256

cafc9b500bdf7058b0d77f43d5aad253eb30347d483bc9b7a507f66503d04934
SHA512

d08b1ed7cd1c3f57ccf89b87e8c37d8a9c4c2b81d6af9865ee05dea30c64dcecb540c34b49f2d4ccf5291a5a56431a4a4e3faf13cde251768e722e5b876e4cbd

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/1628-16-0x000000000041D100-mapping.dmp	xloader
behavioral1/memory/1628-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1592-18-0x0000000000000000-mapping.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1568 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

836 vbc.exe
1628 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1568 EQNEDT32.EXE
1568 EQNEDT32.EXE
1568 EQNEDT32.EXE
1568 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1568	EQNEDT32.EXE

pid	process
836	vbc.exe
1628	vbc.exe

pid	process
1568	EQNEDT32.EXE
1568	EQNEDT32.EXE
1568	EQNEDT32.EXE
1568	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exesystray.exe

description	pid	process	target process
PID 836 set thread context of 1628	836	vbc.exe	vbc.exe
PID 1628 set thread context of 1244	1628	vbc.exe	Explorer.EXE
PID 1592 set thread context of 1244	1592	systray.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

1568 EQNEDT32.EXE

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

pid	process
1568	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-1-5-21-3825035466-2522850611-591511364-1000\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\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\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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\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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1824 EXCEL.EXE

pid	process
1824	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.exesystray.exe

pid	process
1628	vbc.exe
1628	vbc.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe
1592	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exesystray.exe

pid process

1628 vbc.exe
1628 vbc.exe
1628 vbc.exe
1592 systray.exe
1592 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exesystray.exe

description pid process

Token: SeDebugPrivilege 1628 vbc.exe
Token: SeDebugPrivilege 1592 systray.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

1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1628	vbc.exe
Token: SeDebugPrivilege	1592	systray.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
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1568 wrote to memory of 836	1568	EQNEDT32.EXE	vbc.exe
PID 1568 wrote to memory of 836	1568	EQNEDT32.EXE	vbc.exe
PID 1568 wrote to memory of 836	1568	EQNEDT32.EXE	vbc.exe
PID 1568 wrote to memory of 836	1568	EQNEDT32.EXE	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 836 wrote to memory of 1628	836	vbc.exe	vbc.exe
PID 1244 wrote to memory of 1592	1244	Explorer.EXE	systray.exe
PID 1244 wrote to memory of 1592	1244	Explorer.EXE	systray.exe
PID 1244 wrote to memory of 1592	1244	Explorer.EXE	systray.exe
PID 1244 wrote to memory of 1592	1244	Explorer.EXE	systray.exe
PID 1592 wrote to memory of 1748	1592	systray.exe	cmd.exe
PID 1592 wrote to memory of 1748	1592	systray.exe	cmd.exe
PID 1592 wrote to memory of 1748	1592	systray.exe	cmd.exe
PID 1592 wrote to memory of 1748	1592	systray.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:1824

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1592

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1748

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:1568

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:836

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:1628

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
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
C:\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
C:\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
\Users\Public\vbc.exe
MD5
70747f5955df1f8a7012cbe5d37c516f

SHA1
8a4edf21b160f31bc6d9b1d02d343e3bf5fcfd2e

SHA256
6a042012f4233929b8f5fbf73f4b958e39f2fb60d73c1d758753dd07508ef8e1

SHA512
0d84482c736c33eb5e8fc48ef1350dde530b6fbc76440dde906e31cf681631581642cd601bffbaab31fd54296489754814548f56d6c3e2a2c532b1af37309a90

Download Submit
memory/836-10-0x000000006BEC0000-0x000000006C5AE000-memory.dmp

Filesize
6.9MB

Download
memory/836-11-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/836-13-0x0000000000360000-0x000000000036E000-memory.dmp

Filesize
56KB

Download
memory/836-14-0x00000000055A0000-0x000000000562D000-memory.dmp

Filesize
564KB

Download
memory/836-7-0x0000000000000000-mapping.dmp

Download
memory/1592-18-0x0000000000000000-mapping.dmp

Download
memory/1592-19-0x0000000000C70000-0x0000000000C75000-memory.dmp

Filesize
20KB

Download
memory/1592-21-0x00000000040F0000-0x000000000418A000-memory.dmp

Filesize
616KB

Download
memory/1628-16-0x000000000041D100-mapping.dmp

Download
memory/1628-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1716-2-0x000007FEF7020000-0x000007FEF729A000-memory.dmp

Filesize
2.5MB

Download
memory/1748-20-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads