formbook | 79c8fd1442aab68baf4347c21376163936d5bba720acc046c6bd04908479552a

General

Target

DOC0_92221-09222021112118.doc
Size

15KB
MD5

5425f15c6cd1a267b6ee3675ced9ba3a
SHA1

8c85d41e1eb25f784c4badc1959bf0f4f3abd55b
SHA256

79c8fd1442aab68baf4347c21376163936d5bba720acc046c6bd04908479552a
SHA512

39dc3968cf6e00ae39a4b3adc9ba85d519b1baf73637f73bd95b287401bcf1106ba76c2b4f275c7460de20e992dce6000a2e522c1692b11d351caf67ed86dd6c

Score

10^/10

formbook vngb rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

vngb

C2

http://www.gvlc0.club/vngb/

Decoy

omertalasvegas.com

payyep.com

modasportss.com

gestionestrategicadl.com

teamolemiss.club

geektranslate.com

versatileventure.com

athletic-hub.com

vitanovaretreats.com

padison8t.com

tutoeasy.com

ediblewholesale.com

kangrungao.com

satode.com

prohibitionfeeds.com

getmorevacations.com

blinkworldbeauty.com

kdlabsallr.com

almanasef.com

transportationservicellc.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1140-76-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1140-77-0x000000000041F0E0-mapping.dmp	formbook
behavioral1/memory/1836-88-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1708 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

mpomtuq8971.exempomtuq8971.exe

pid process

1792 mpomtuq8971.exe
1140 mpomtuq8971.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

1708 EQNEDT32.EXE

flow	pid	process
6	1708	EQNEDT32.EXE

pid	process
1792	mpomtuq8971.exe
1140	mpomtuq8971.exe

pid	process
1708	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

mpomtuq8971.exempomtuq8971.exemsdt.exe

description	pid	process	target process
PID 1792 set thread context of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1140 set thread context of 1224	1140	mpomtuq8971.exe	Explorer.EXE
PID 1140 set thread context of 1224	1140	mpomtuq8971.exe	Explorer.EXE
PID 1836 set thread context of 1224	1836	msdt.exe	Explorer.EXE

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present
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

1708 EQNEDT32.EXE

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	process
1708	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1988 WINWORD.EXE

pid	process
1988	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

mpomtuq8971.exemsdt.exe

pid	process
1140	mpomtuq8971.exe
1140	mpomtuq8971.exe
1140	mpomtuq8971.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe
1836	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

mpomtuq8971.exemsdt.exe

pid process

1140 mpomtuq8971.exe
1140 mpomtuq8971.exe
1140 mpomtuq8971.exe
1140 mpomtuq8971.exe
1836 msdt.exe
1836 msdt.exe

pid	process
1224	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

mpomtuq8971.exemsdt.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1140	mpomtuq8971.exe
Token: SeDebugPrivilege	1836	msdt.exe
Token: SeShutdownPrivilege	1224	Explorer.EXE
Token: SeShutdownPrivilege	1224	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE
1224 Explorer.EXE
1224 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE
1224 Explorer.EXE
1224 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1988 WINWORD.EXE
1988 WINWORD.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE
1224	Explorer.EXE

pid	process
1988	WINWORD.EXE
1988	WINWORD.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEmpomtuq8971.exeExplorer.EXEmsdt.exe

description	pid	process	target process
PID 1708 wrote to memory of 1792	1708	EQNEDT32.EXE	mpomtuq8971.exe
PID 1708 wrote to memory of 1792	1708	EQNEDT32.EXE	mpomtuq8971.exe
PID 1708 wrote to memory of 1792	1708	EQNEDT32.EXE	mpomtuq8971.exe
PID 1708 wrote to memory of 1792	1708	EQNEDT32.EXE	mpomtuq8971.exe
PID 1988 wrote to memory of 1880	1988	WINWORD.EXE	splwow64.exe
PID 1988 wrote to memory of 1880	1988	WINWORD.EXE	splwow64.exe
PID 1988 wrote to memory of 1880	1988	WINWORD.EXE	splwow64.exe
PID 1988 wrote to memory of 1880	1988	WINWORD.EXE	splwow64.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1792 wrote to memory of 1140	1792	mpomtuq8971.exe	mpomtuq8971.exe
PID 1224 wrote to memory of 1836	1224	Explorer.EXE	msdt.exe
PID 1224 wrote to memory of 1836	1224	Explorer.EXE	msdt.exe
PID 1224 wrote to memory of 1836	1224	Explorer.EXE	msdt.exe
PID 1224 wrote to memory of 1836	1224	Explorer.EXE	msdt.exe
PID 1836 wrote to memory of 676	1836	msdt.exe	cmd.exe
PID 1836 wrote to memory of 676	1836	msdt.exe	cmd.exe
PID 1836 wrote to memory of 676	1836	msdt.exe	cmd.exe
PID 1836 wrote to memory of 676	1836	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1224

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\DOC0_92221-09222021112118.doc"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1880

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe"
3⤵
PID:676

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:1708

C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe
"C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1792

C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe
"C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1140

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe
MD5
132e157793925e5d203c1641e313d95d

SHA1
3d01108b60fb36cc24ba4ed9f20989f3c646d2dc

SHA256
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1

SHA512
75c43c4bb2dc63d51d9e79a29a842dc65f75070f7863d1cec163ebc66298a562655f34b55c443d90b976c5797c488b2aa8a9d237bea8e4903858bb0d31aaff58

Download Submit
C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe
MD5
132e157793925e5d203c1641e313d95d

SHA1
3d01108b60fb36cc24ba4ed9f20989f3c646d2dc

SHA256
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1

SHA512
75c43c4bb2dc63d51d9e79a29a842dc65f75070f7863d1cec163ebc66298a562655f34b55c443d90b976c5797c488b2aa8a9d237bea8e4903858bb0d31aaff58

Download Submit
C:\Users\Admin\AppData\Roaming\mpomtuq8971.exe
MD5
132e157793925e5d203c1641e313d95d

SHA1
3d01108b60fb36cc24ba4ed9f20989f3c646d2dc

SHA256
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1

SHA512
75c43c4bb2dc63d51d9e79a29a842dc65f75070f7863d1cec163ebc66298a562655f34b55c443d90b976c5797c488b2aa8a9d237bea8e4903858bb0d31aaff58

Download Submit
\Users\Admin\AppData\Roaming\mpomtuq8971.exe
MD5
132e157793925e5d203c1641e313d95d

SHA1
3d01108b60fb36cc24ba4ed9f20989f3c646d2dc

SHA256
e14df53adff2889344d4502133a00a389e06039715c26a7724ed3f046fc683a1

SHA512
75c43c4bb2dc63d51d9e79a29a842dc65f75070f7863d1cec163ebc66298a562655f34b55c443d90b976c5797c488b2aa8a9d237bea8e4903858bb0d31aaff58

Download Submit
memory/676-86-0x0000000000000000-mapping.dmp

Download
memory/1140-82-0x0000000000620000-0x0000000000634000-memory.dmp

Filesize
80KB

Download
memory/1140-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1140-79-0x0000000000AF0000-0x0000000000DF3000-memory.dmp

Filesize
3.0MB

Download
memory/1140-80-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/1140-77-0x000000000041F0E0-mapping.dmp

Download
memory/1224-91-0x0000000006320000-0x0000000006460000-memory.dmp

Filesize
1.2MB

Download
memory/1224-83-0x0000000002AD0000-0x0000000002B9A000-memory.dmp

Filesize
808KB

Download
memory/1224-81-0x00000000061B0000-0x000000000631D000-memory.dmp

Filesize
1.4MB

Download
memory/1792-71-0x0000000000480000-0x000000000048E000-memory.dmp

Filesize
56KB

Download
memory/1792-75-0x00000000009B0000-0x00000000009E1000-memory.dmp

Filesize
196KB

Download
memory/1792-74-0x0000000005370000-0x00000000053D0000-memory.dmp

Filesize
384KB

Download
memory/1792-65-0x0000000000000000-mapping.dmp

Download
memory/1792-70-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/1792-68-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/1836-87-0x0000000000DF0000-0x0000000000EE4000-memory.dmp

Filesize
976KB

Download
memory/1836-90-0x0000000000B60000-0x0000000000BF3000-memory.dmp

Filesize
588KB

Download
memory/1836-88-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1836-89-0x00000000022F0000-0x00000000025F3000-memory.dmp

Filesize
3.0MB

Download
memory/1836-84-0x0000000000000000-mapping.dmp

Download
memory/1880-73-0x000007FEFC051000-0x000007FEFC053000-memory.dmp

Filesize
8KB

Download
memory/1880-72-0x0000000000000000-mapping.dmp

Download
memory/1988-60-0x00000000705D1000-0x00000000705D3000-memory.dmp

Filesize
8KB

Download
memory/1988-59-0x0000000072B51000-0x0000000072B54000-memory.dmp

Filesize
12KB

Download
memory/1988-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1988-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/1988-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads