formbook | ae5beb31d816f7bc882e8422ea7d06fcd48d210d120ab9c505343f87d93e5b00

General

Target

PN210700369.doc
Size

12KB
MD5

0ab8548f84307cc143104f8557e39f20
SHA1

1a7472fc4e86faa731c4870e2ca3999f1aab5d6b
SHA256

ae5beb31d816f7bc882e8422ea7d06fcd48d210d120ab9c505343f87d93e5b00
SHA512

da2f86e69be7e0d8b8c0beafeee2230ec7ebfba7dd48c99d31bd23061eb27199145e6e65ec0ea49dc92aa50a2349454953ff3333442c1f6c3acf517b1245e3ee

Score

10^/10

formbook ed9s rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ed9s

C2

http://www.vaughnmethod.com/ed9s/

Decoy

pocketoptioniraq.com

merabestsolutions.com

atelectronics.site

fuxueshi.net

infinitystay.com

forensicconcept.site

txpmachine.com

masterwhs.xyz

dia-gnwsis.art

fulltiltnodes.com

bigbnbbsc.com

formation-figma.com

bonanacroin.net

medicalmarijuanasatx.com

bagnavy.com

aaegiscares.net

presentationpublicschool.com

bestyousite.site

prescriptionn.com

beyondthenormbouquets.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1340-77-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1340-78-0x000000000041F160-mapping.dmp	formbook
behavioral1/memory/1592-88-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1068 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 3 IoCs

Processes:

obinahwi7863.exeobinahwi7863.exeobinahwi7863.exe

pid process

1564 obinahwi7863.exe
1264 obinahwi7863.exe
1340 obinahwi7863.exe
Loads dropped DLL 1 IoCs

Processes:

EQNEDT32.EXE

pid process

1068 EQNEDT32.EXE

flow	pid	process
6	1068	EQNEDT32.EXE

pid	process
1068	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

obinahwi7863.exeobinahwi7863.execmd.exe

description	pid	process	target process
PID 1564 set thread context of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1340 set thread context of 1208	1340	obinahwi7863.exe	Explorer.EXE
PID 1340 set thread context of 1208	1340	obinahwi7863.exe	Explorer.EXE
PID 1592 set thread context of 1208	1592	cmd.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

1068 EQNEDT32.EXE

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

pid	process
1068	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\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
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 (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	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 (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

816 WINWORD.EXE

pid	process
816	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

obinahwi7863.exeobinahwi7863.execmd.exe

pid	process
1564	obinahwi7863.exe
1564	obinahwi7863.exe
1340	obinahwi7863.exe
1340	obinahwi7863.exe
1340	obinahwi7863.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe
1592	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

obinahwi7863.execmd.exe

pid process

1340 obinahwi7863.exe
1340 obinahwi7863.exe
1340 obinahwi7863.exe
1340 obinahwi7863.exe
1592 cmd.exe
1592 cmd.exe

pid	process
1208	Explorer.EXE

pid	process
1340	obinahwi7863.exe
1340	obinahwi7863.exe
1340	obinahwi7863.exe
1340	obinahwi7863.exe
1592	cmd.exe
1592	cmd.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

obinahwi7863.exeobinahwi7863.execmd.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1564	obinahwi7863.exe
Token: SeDebugPrivilege	1340	obinahwi7863.exe
Token: SeDebugPrivilege	1592	cmd.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE
Token: SeShutdownPrivilege	1208	Explorer.EXE

Suspicious use of FindShellTrayWindow 6 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

816 WINWORD.EXE
816 WINWORD.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
816	WINWORD.EXE
816	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEobinahwi7863.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 1068 wrote to memory of 1564	1068	EQNEDT32.EXE	obinahwi7863.exe
PID 1068 wrote to memory of 1564	1068	EQNEDT32.EXE	obinahwi7863.exe
PID 1068 wrote to memory of 1564	1068	EQNEDT32.EXE	obinahwi7863.exe
PID 1068 wrote to memory of 1564	1068	EQNEDT32.EXE	obinahwi7863.exe
PID 816 wrote to memory of 1032	816	WINWORD.EXE	splwow64.exe
PID 816 wrote to memory of 1032	816	WINWORD.EXE	splwow64.exe
PID 816 wrote to memory of 1032	816	WINWORD.EXE	splwow64.exe
PID 816 wrote to memory of 1032	816	WINWORD.EXE	splwow64.exe
PID 1564 wrote to memory of 1264	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1264	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1264	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1264	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1564 wrote to memory of 1340	1564	obinahwi7863.exe	obinahwi7863.exe
PID 1208 wrote to memory of 1592	1208	Explorer.EXE	cmd.exe
PID 1208 wrote to memory of 1592	1208	Explorer.EXE	cmd.exe
PID 1208 wrote to memory of 1592	1208	Explorer.EXE	cmd.exe
PID 1208 wrote to memory of 1592	1208	Explorer.EXE	cmd.exe
PID 1592 wrote to memory of 1488	1592	cmd.exe	cmd.exe
PID 1592 wrote to memory of 1488	1592	cmd.exe	cmd.exe
PID 1592 wrote to memory of 1488	1592	cmd.exe	cmd.exe
PID 1592 wrote to memory of 1488	1592	cmd.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:1208

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\PN210700369.doc"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1032

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.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\Admin\AppData\Roaming\obinahwi7863.exe"
3⤵
PID:1488

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:1068

C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
"C:\Users\Admin\AppData\Roaming\obinahwi7863.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564

C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
"C:\Users\Admin\AppData\Roaming\obinahwi7863.exe"
3⤵
- Executes dropped EXE
PID:1264

C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
"C:\Users\Admin\AppData\Roaming\obinahwi7863.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1340

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\obinahwi7863.exe
MD5
45703e2e8fea96fffb9db9aa78213b20

SHA1
4c1d8fcf41c7ea7aa12bcd716a88836fb7dae3ea

SHA256
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3

SHA512
ba3958967c0ce10455e2a1f0e0773c5ab568320c3df51324e51ca16022e36e49f84e69500043e62540df14d65610fc90aa2e77c4863b8da07f613a3227906753

Download Submit
C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
MD5
45703e2e8fea96fffb9db9aa78213b20

SHA1
4c1d8fcf41c7ea7aa12bcd716a88836fb7dae3ea

SHA256
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3

SHA512
ba3958967c0ce10455e2a1f0e0773c5ab568320c3df51324e51ca16022e36e49f84e69500043e62540df14d65610fc90aa2e77c4863b8da07f613a3227906753

Download Submit
C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
MD5
45703e2e8fea96fffb9db9aa78213b20

SHA1
4c1d8fcf41c7ea7aa12bcd716a88836fb7dae3ea

SHA256
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3

SHA512
ba3958967c0ce10455e2a1f0e0773c5ab568320c3df51324e51ca16022e36e49f84e69500043e62540df14d65610fc90aa2e77c4863b8da07f613a3227906753

Download Submit
C:\Users\Admin\AppData\Roaming\obinahwi7863.exe
MD5
45703e2e8fea96fffb9db9aa78213b20

SHA1
4c1d8fcf41c7ea7aa12bcd716a88836fb7dae3ea

SHA256
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3

SHA512
ba3958967c0ce10455e2a1f0e0773c5ab568320c3df51324e51ca16022e36e49f84e69500043e62540df14d65610fc90aa2e77c4863b8da07f613a3227906753

Download Submit
\Users\Admin\AppData\Roaming\obinahwi7863.exe
MD5
45703e2e8fea96fffb9db9aa78213b20

SHA1
4c1d8fcf41c7ea7aa12bcd716a88836fb7dae3ea

SHA256
9d503fba930fcf9724778a17659948875302b2fc7148c82779c29dfc18fb8cc3

SHA512
ba3958967c0ce10455e2a1f0e0773c5ab568320c3df51324e51ca16022e36e49f84e69500043e62540df14d65610fc90aa2e77c4863b8da07f613a3227906753

Download Submit
memory/816-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/816-60-0x000000006FD31000-0x000000006FD33000-memory.dmp

Filesize
8KB

Download
memory/816-62-0x0000000075511000-0x0000000075513000-memory.dmp

Filesize
8KB

Download
memory/816-59-0x00000000722B1000-0x00000000722B4000-memory.dmp

Filesize
12KB

Download
memory/816-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1032-72-0x0000000000000000-mapping.dmp

Download
memory/1032-73-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download
memory/1208-93-0x000007FEF5000000-0x000007FEF5143000-memory.dmp

Filesize
1.3MB

Download
memory/1208-84-0x0000000006150000-0x00000000062B9000-memory.dmp

Filesize
1.4MB

Download
memory/1208-91-0x0000000003E60000-0x0000000003F0E000-memory.dmp

Filesize
696KB

Download
memory/1208-82-0x00000000044A0000-0x00000000045A8000-memory.dmp

Filesize
1.0MB

Download
memory/1208-94-0x000007FE88740000-0x000007FE8874A000-memory.dmp

Filesize
40KB

Download
memory/1340-78-0x000000000041F160-mapping.dmp

Download
memory/1340-77-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1340-80-0x0000000000B50000-0x0000000000E53000-memory.dmp

Filesize
3.0MB

Download
memory/1340-81-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/1340-83-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1488-86-0x0000000000000000-mapping.dmp

Download
memory/1564-68-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/1564-75-0x0000000000540000-0x0000000000571000-memory.dmp

Filesize
196KB

Download
memory/1564-74-0x0000000004FF0000-0x0000000005052000-memory.dmp

Filesize
392KB

Download
memory/1564-71-0x00000000003C0000-0x00000000003CE000-memory.dmp

Filesize
56KB

Download
memory/1564-70-0x0000000004E60000-0x0000000004E61000-memory.dmp

Filesize
4KB

Download
memory/1564-65-0x0000000000000000-mapping.dmp

Download
memory/1592-85-0x0000000000000000-mapping.dmp

Download
memory/1592-87-0x0000000049D80000-0x0000000049DCC000-memory.dmp

Filesize
304KB

Download
memory/1592-88-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1592-89-0x0000000001F50000-0x0000000002253000-memory.dmp

Filesize
3.0MB

Download
memory/1592-90-0x0000000002260000-0x00000000022F3000-memory.dmp

Filesize
588KB

Download

pid	process
1564	obinahwi7863.exe
1264	obinahwi7863.exe
1340	obinahwi7863.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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