formbook | 25aa6bd2dcdf1aa19a84a16daf35ddecf15f62cbfb76a4e6d06735abed15dd7d

General

Target

PO 24000109490.xlsx
Size

2.0MB
MD5

6379ce1baf8d921aaae608b2dd8906c6
SHA1

ce09f77a95714d7a44f2ad55c64a7c60ac2ada3a
SHA256

25aa6bd2dcdf1aa19a84a16daf35ddecf15f62cbfb76a4e6d06735abed15dd7d
SHA512

efc3710a2fec71e1b553233585fa266b952aab1d83f12c681b05bff4b9f744f5ae58ee15b1ac97abdb849da823e155c611e14ee98888928cb3c361c1f65a9662

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.bodyfuelrtd.com/8rg4/

Decoy

fakecostasunglasses.com

twinbrothers.pizza

jizhoujsp.com

qscrit.com

hotelmanise.com

fer-ua.online

europserver-simcloud.systems

redwap2.pro

betwalkoffame.com

latashalovemillionaire.com

8million-lr.com

tomatrader.com

modaluxcutabovefitness.com

shishijiazu.com

cckytx.com

reversehomeloansmiami.com

imaginenationnetwork.com

thecyclistshop.com

jorgegiljewelry.com

hlaprotiens.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/792-17-0x000000000041D070-mapping.dmp	xloader
behavioral1/memory/792-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1564-19-0x0000000000000000-mapping.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 1956 EQNEDT32.EXE
Executes dropped EXE 3 IoCs

Processes:

vbc.exevbc.exevbc.exe

pid process

304 vbc.exe
1708 vbc.exe
792 vbc.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXE

pid process

1956 EQNEDT32.EXE
1956 EQNEDT32.EXE
1956 EQNEDT32.EXE
1956 EQNEDT32.EXE
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
7	1956	EQNEDT32.EXE

pid	process
1956	EQNEDT32.EXE
1956	EQNEDT32.EXE
1956	EQNEDT32.EXE
1956	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exewininit.exe

description	pid	process	target process
PID 304 set thread context of 792	304	vbc.exe	vbc.exe
PID 792 set thread context of 1260	792	vbc.exe	Explorer.EXE
PID 1564 set thread context of 1260	1564	wininit.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

1956 EQNEDT32.EXE

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

pid	process
1956	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\MenuExt\E&xport to Microsoft Excel	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
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\Se&nd to OneNote	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 (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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

532 EXCEL.EXE

pid	process
532	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

vbc.exevbc.exewininit.exe

pid	process
304	vbc.exe
304	vbc.exe
792	vbc.exe
792	vbc.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe
1564	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exewininit.exe

pid process

792 vbc.exe
792 vbc.exe
792 vbc.exe
1564 wininit.exe
1564 wininit.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.exevbc.exewininit.exe

description pid process

Token: SeDebugPrivilege 304 vbc.exe
Token: SeDebugPrivilege 792 vbc.exe
Token: SeDebugPrivilege 1564 wininit.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

532 EXCEL.EXE
532 EXCEL.EXE
532 EXCEL.EXE

pid	process
792	vbc.exe
792	vbc.exe
792	vbc.exe
1564	wininit.exe
1564	wininit.exe

description	pid	process
Token: SeDebugPrivilege	304	vbc.exe
Token: SeDebugPrivilege	792	vbc.exe
Token: SeDebugPrivilege	1564	wininit.exe

pid	process
1260	Explorer.EXE
1260	Explorer.EXE
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
532	EXCEL.EXE
532	EXCEL.EXE
532	EXCEL.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

EQNEDT32.EXEvbc.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 1956 wrote to memory of 304	1956	EQNEDT32.EXE	vbc.exe
PID 1956 wrote to memory of 304	1956	EQNEDT32.EXE	vbc.exe
PID 1956 wrote to memory of 304	1956	EQNEDT32.EXE	vbc.exe
PID 1956 wrote to memory of 304	1956	EQNEDT32.EXE	vbc.exe
PID 304 wrote to memory of 1708	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 1708	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 1708	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 1708	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 304 wrote to memory of 792	304	vbc.exe	vbc.exe
PID 1260 wrote to memory of 1564	1260	Explorer.EXE	wininit.exe
PID 1260 wrote to memory of 1564	1260	Explorer.EXE	wininit.exe
PID 1260 wrote to memory of 1564	1260	Explorer.EXE	wininit.exe
PID 1260 wrote to memory of 1564	1260	Explorer.EXE	wininit.exe
PID 1564 wrote to memory of 1320	1564	wininit.exe	cmd.exe
PID 1564 wrote to memory of 1320	1564	wininit.exe	cmd.exe
PID 1564 wrote to memory of 1320	1564	wininit.exe	cmd.exe
PID 1564 wrote to memory of 1320	1564	wininit.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:1260

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\PO 24000109490.xlsx"
2⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:532

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Public\vbc.exe"
3⤵
PID:1320

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:1956

C:\Users\Public\vbc.exe
"C:\Users\Public\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:304

C:\Users\Public\vbc.exe
"{path}"
3⤵
- Executes dropped EXE
PID:1708

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:792

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
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
C:\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
C:\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
C:\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
\Users\Public\vbc.exe
MD5
c6a79aaad7ae2619ef0a38d08af79c83

SHA1
8d6ef31473f3907846b532e5419bd5989375bb04

SHA256
a7df5fff3eb06082036dd6634fa7c5022c48ae5438e5cff66bc500906c16597e

SHA512
4074036556fb6b6a114173165cdb4dad324498b4d682e068ef42dff55cae52df8296e0699ecda1825e730b5642be136f181615b32eabb430760beba9eab5f7c6

Download Submit
memory/304-7-0x0000000000000000-mapping.dmp

Download
memory/304-11-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/304-13-0x0000000000310000-0x000000000031E000-memory.dmp

Filesize
56KB

Download
memory/304-14-0x00000000056C0000-0x0000000005755000-memory.dmp

Filesize
596KB

Download
memory/304-10-0x000000006BEB0000-0x000000006C59E000-memory.dmp

Filesize
6.9MB

Download
memory/792-17-0x000000000041D070-mapping.dmp

Download
memory/792-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1320-21-0x0000000000000000-mapping.dmp

Download
memory/1512-2-0x000007FEF62A0000-0x000007FEF651A000-memory.dmp

Filesize
2.5MB

Download
memory/1564-19-0x0000000000000000-mapping.dmp

Download
memory/1564-20-0x0000000000B50000-0x0000000000B6A000-memory.dmp

Filesize
104KB

Download
memory/1564-22-0x0000000004250000-0x00000000043A5000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads