formbook | 32cfaa88c450f72627f502fa72b50b21c3ae2d0199eebbd9f3f750945521678a

General

Target

SALAMATH EXPORTS.docx
Size

10KB
MD5

12f193f5a91b18567a1dc4c652a9b9f4
SHA1

9c030151be689de05d2391114f437d748b13c8d8
SHA256

32cfaa88c450f72627f502fa72b50b21c3ae2d0199eebbd9f3f750945521678a
SHA512

ab3d112138c3e5e8b303a58ed35df967acdedd4f1e6c9efb419395c6ba6f0224f6ef2f5a429ebdf5842e59df9dcbf83f79f5ad5dd345a88e56efdc1cecb78112

Score

10^/10

formbook m8g0 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m8g0

C2

http://www.corbvalperu.com/m8g0/

Decoy

exclusivecan.com

junzhesuji.com

acces-credit-mutuel.com

iknitvintage.com

solonmodelun.com

debekia.com

peanutskitchen.com

kamanantzin.com

personalmodeststyle.com

qo49.com

googman.site

maisonshahnaz.com

annaalexandrovich.com

californiacashcars.com

ncafashionboutique.com

nsu0.com

cloudfirstlender.com

allforchildren.net

vn80000.com

restroon.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
suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016
suricata: ET MALWARE Possible Malicious Macro DL EXE Feb 2016
suricata
suricata: ET MALWARE Possible Malicious Macro EXE DL AlphaNumL
suricata: ET MALWARE Possible Malicious Macro EXE DL AlphaNumL
suricata

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1148-80-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1148-81-0x000000000041EB70-mapping.dmp	formbook
behavioral1/memory/592-90-0x0000000000100000-0x000000000012E000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

12 1812 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

vbc.exevbc.exe

pid process

928 vbc.exe
1148 vbc.exe

flow	pid	process
12	1812	EQNEDT32.EXE

pid	process
928	vbc.exe
1148	vbc.exe

Abuses OpenXML format to download file from external location 2 IoCs

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key opened	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Office\Common\Offline\Files\http://cml.lol/tj7g80	WINWORD.EXE

Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1812 EQNEDT32.EXE
1812 EQNEDT32.EXE
1812 EQNEDT32.EXE
1812 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1812	EQNEDT32.EXE
1812	EQNEDT32.EXE
1812	EQNEDT32.EXE
1812	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeipconfig.exe

description	pid	process	target process
PID 928 set thread context of 1148	928	vbc.exe	vbc.exe
PID 1148 set thread context of 1212	1148	vbc.exe	Explorer.EXE
PID 592 set thread context of 1212	592	ipconfig.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
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

592 ipconfig.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

1812 EQNEDT32.EXE

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

pid	process
592	ipconfig.exe

pid	process
1812	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	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
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
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
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
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\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

2012 WINWORD.EXE

pid	process
2012	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

vbc.exeipconfig.exe

pid	process
1148	vbc.exe
1148	vbc.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe
592	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeipconfig.exe

pid process

1148 vbc.exe
1148 vbc.exe
1148 vbc.exe
592 ipconfig.exe
592 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.exeipconfig.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1148 vbc.exe
Token: SeDebugPrivilege 592 ipconfig.exe
Token: SeShutdownPrivilege 1212 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

2012 WINWORD.EXE
2012 WINWORD.EXE

description	pid	process
Token: SeDebugPrivilege	1148	vbc.exe
Token: SeDebugPrivilege	592	ipconfig.exe
Token: SeShutdownPrivilege	1212	Explorer.EXE

pid	process
2012	WINWORD.EXE
2012	WINWORD.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEvbc.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 1812 wrote to memory of 928	1812	EQNEDT32.EXE	vbc.exe
PID 1812 wrote to memory of 928	1812	EQNEDT32.EXE	vbc.exe
PID 1812 wrote to memory of 928	1812	EQNEDT32.EXE	vbc.exe
PID 1812 wrote to memory of 928	1812	EQNEDT32.EXE	vbc.exe
PID 2012 wrote to memory of 1624	2012	WINWORD.EXE	splwow64.exe
PID 2012 wrote to memory of 1624	2012	WINWORD.EXE	splwow64.exe
PID 2012 wrote to memory of 1624	2012	WINWORD.EXE	splwow64.exe
PID 2012 wrote to memory of 1624	2012	WINWORD.EXE	splwow64.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 928 wrote to memory of 1148	928	vbc.exe	vbc.exe
PID 1212 wrote to memory of 592	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 592	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 592	1212	Explorer.EXE	ipconfig.exe
PID 1212 wrote to memory of 592	1212	Explorer.EXE	ipconfig.exe
PID 592 wrote to memory of 436	592	ipconfig.exe	cmd.exe
PID 592 wrote to memory of 436	592	ipconfig.exe	cmd.exe
PID 592 wrote to memory of 436	592	ipconfig.exe	cmd.exe
PID 592 wrote to memory of 436	592	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1212

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\SALAMATH EXPORTS.docx"
2⤵
- Abuses OpenXML format to download file from external location
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1624

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:592

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:436

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:1812

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:928

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1148

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Command-Line Interface

1

T1059

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
C:\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
C:\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
\Users\Public\vbc.exe
MD5
f0f4b5aa6183bbc5265f26e47aaeb579

SHA1
81f06990ec9c83d755d5023f95af114d92e68d45

SHA256
f8d239a08e27c28f5a5dea56ab895274476ae7360d5d456d89b58d33a392d49c

SHA512
3bc8bb2ac4dc15c484aac016b5c09ff55c45f7db2127a10ba5621711d66dc6287ad109906a1707dcbf0f6c8ba0078b8f6b4603e4a6365726ef419aabe7cf02e6

Download Submit
memory/436-88-0x0000000000000000-mapping.dmp

Download
memory/592-89-0x00000000008E0000-0x00000000008EA000-memory.dmp

Filesize
40KB

Download
memory/592-90-0x0000000000100000-0x000000000012E000-memory.dmp

Filesize
184KB

Download
memory/592-91-0x0000000001FC0000-0x00000000022C3000-memory.dmp

Filesize
3.0MB

Download
memory/592-92-0x0000000001DA0000-0x0000000001E33000-memory.dmp

Filesize
588KB

Download
memory/592-86-0x0000000000000000-mapping.dmp

Download
memory/928-76-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

Filesize
4KB

Download
memory/928-72-0x00000000012A0000-0x00000000012A1000-memory.dmp

Filesize
4KB

Download
memory/928-77-0x00000000003E0000-0x00000000003E7000-memory.dmp

Filesize
28KB

Download
memory/928-78-0x0000000004A00000-0x0000000004A69000-memory.dmp

Filesize
420KB

Download
memory/928-79-0x0000000001010000-0x0000000001043000-memory.dmp

Filesize
204KB

Download
memory/928-69-0x0000000000000000-mapping.dmp

Download
memory/1148-80-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1148-83-0x0000000000980000-0x0000000000C83000-memory.dmp

Filesize
3.0MB

Download
memory/1148-84-0x0000000000140000-0x0000000000154000-memory.dmp

Filesize
80KB

Download
memory/1148-81-0x000000000041EB70-mapping.dmp

Download
memory/1212-85-0x0000000004F40000-0x0000000005063000-memory.dmp

Filesize
1.1MB

Download
memory/1212-93-0x0000000004500000-0x00000000045CA000-memory.dmp

Filesize
808KB

Download
memory/1624-75-0x000007FEFB681000-0x000007FEFB683000-memory.dmp

Filesize
8KB

Download
memory/1624-74-0x0000000000000000-mapping.dmp

Download
memory/2012-60-0x0000000072181000-0x0000000072184000-memory.dmp

Filesize
12KB

Download
memory/2012-63-0x0000000074D91000-0x0000000074D93000-memory.dmp

Filesize
8KB

Download
memory/2012-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2012-61-0x000000006FC01000-0x000000006FC03000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads