formbook | 6b80459293e1eae78fa4efafbc8ddae1fb2bdb73c35c0b1880fdb65d80a49114

General

Target

44a6829e3ee6c5d98fccde99b502f7e2.exe
Size

260KB
MD5

44a6829e3ee6c5d98fccde99b502f7e2
SHA1

a64dce6694fc716860a52b367317efc095e46756
SHA256

6b80459293e1eae78fa4efafbc8ddae1fb2bdb73c35c0b1880fdb65d80a49114
SHA512

94a51cc57016387bc64107f4b159dd9bfb588fca597bbec9137e94ef832e2a1471a742bd20de3405f2c9cdf4b3b7436ac6889295ba424d678236232d148c26cd

Score

10^/10

formbook xloader be4o loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

be4o

Decoy

laboratoriobioixcha.com

tictocperushop.online

wild-oceans.com

belaruscountry.com

kicktmall.com

fitcoinweb.tech

mores.one

gogear.one

gxrcksy.com

samrcq.com

impossible-icecream.com

bravesxx.com

bookchainart.com

sleepsolutionsofmboro.com

ocbrazilbusinessclub.com

advisor76.xyz

xitaotech.com

mgsdtytifgf3414.xyz

johnson-brown.net

cr3drt.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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2020-60-0x000000000041F270-mapping.dmp	xloader
behavioral1/memory/2020-61-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/2020-66-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/1336-72-0x00000000000D0000-0x00000000000FB000-memory.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wuapp.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wuapp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KHJ8UFWH2T = "C:\\Program Files (x86)\\Fzp3du\\msfldd6tp.exe"	wuapp.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

44a6829e3ee6c5d98fccde99b502f7e2.exevbc.exewuapp.exe

description	pid	process	target process
PID 560 set thread context of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 2020 set thread context of 1428	2020	vbc.exe	Explorer.EXE
PID 2020 set thread context of 1428	2020	vbc.exe	Explorer.EXE
PID 1336 set thread context of 1428	1336	wuapp.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wuapp.exe

description ioc process

File opened for modification C:\Program Files (x86)\Fzp3du\msfldd6tp.exe wuapp.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Fzp3du\msfldd6tp.exe	wuapp.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wuapp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wuapp.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

vbc.exewuapp.exe

pid	process
2020	vbc.exe
2020	vbc.exe
2020	vbc.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe
1336	wuapp.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

vbc.exewuapp.exe

pid process

2020 vbc.exe
2020 vbc.exe
2020 vbc.exe
2020 vbc.exe
1336 wuapp.exe
1336 wuapp.exe
1336 wuapp.exe
1336 wuapp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exewuapp.exe

description pid process

Token: SeDebugPrivilege 2020 vbc.exe
Token: SeDebugPrivilege 1336 wuapp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1428 Explorer.EXE
1428 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1428 Explorer.EXE
1428 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2020	vbc.exe
Token: SeDebugPrivilege	1336	wuapp.exe

pid	process
1428	Explorer.EXE
1428	Explorer.EXE

pid	process
1428	Explorer.EXE
1428	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

44a6829e3ee6c5d98fccde99b502f7e2.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 560 wrote to memory of 2020	560	44a6829e3ee6c5d98fccde99b502f7e2.exe	vbc.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1428 wrote to memory of 1336	1428	Explorer.EXE	wuapp.exe
PID 1336 wrote to memory of 824	1336	wuapp.exe	cmd.exe
PID 1336 wrote to memory of 824	1336	wuapp.exe	cmd.exe
PID 1336 wrote to memory of 824	1336	wuapp.exe	cmd.exe
PID 1336 wrote to memory of 824	1336	wuapp.exe	cmd.exe
PID 1336 wrote to memory of 764	1336	wuapp.exe	Firefox.exe
PID 1336 wrote to memory of 764	1336	wuapp.exe	Firefox.exe
PID 1336 wrote to memory of 764	1336	wuapp.exe	Firefox.exe
PID 1336 wrote to memory of 764	1336	wuapp.exe	Firefox.exe
PID 1336 wrote to memory of 764	1336	wuapp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1428

C:\Users\Admin\AppData\Local\Temp\44a6829e3ee6c5d98fccde99b502f7e2.exe
"C:\Users\Admin\AppData\Local\Temp\44a6829e3ee6c5d98fccde99b502f7e2.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:560

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2020

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1736

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1052

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1960

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1992

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1996

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1940

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1732

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1964

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1952

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:600

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:288

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:324

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1148

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1724

C:\Windows\SysWOW64\wuapp.exe
"C:\Windows\SysWOW64\wuapp.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
PID:824

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/560-54-0x0000000001150000-0x0000000001196000-memory.dmp

Filesize
280KB

Download
memory/560-55-0x0000000075271000-0x0000000075273000-memory.dmp

Filesize
8KB

Download
memory/824-70-0x0000000000000000-mapping.dmp

Download
memory/1336-75-0x0000000000630000-0x00000000006C0000-memory.dmp

Filesize
576KB

Download
memory/1336-73-0x0000000002160000-0x0000000002463000-memory.dmp

Filesize
3.0MB

Download
memory/1336-72-0x00000000000D0000-0x00000000000FB000-memory.dmp

Filesize
172KB

Download
memory/1336-71-0x00000000001B0000-0x00000000001BB000-memory.dmp

Filesize
44KB

Download
memory/1336-69-0x0000000000000000-mapping.dmp

Download
memory/1428-65-0x00000000067A0000-0x00000000068A0000-memory.dmp

Filesize
1024KB

Download
memory/1428-68-0x00000000069A0000-0x0000000006A84000-memory.dmp

Filesize
912KB

Download
memory/1428-76-0x0000000007100000-0x0000000007253000-memory.dmp

Filesize
1.3MB

Download
memory/2020-66-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/2020-67-0x0000000000250000-0x0000000000261000-memory.dmp

Filesize
68KB

Download
memory/2020-64-0x0000000000170000-0x0000000000181000-memory.dmp

Filesize
68KB

Download
memory/2020-63-0x0000000000EF0000-0x00000000011F3000-memory.dmp

Filesize
3.0MB

Download
memory/2020-61-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/2020-60-0x000000000041F270-mapping.dmp

Download
memory/2020-57-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/2020-56-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads