formbook | 661eda3234e1b3b497701920414c03108188d4e4cadc8a3de7dbda17753c9e09

General

Target

doc001876543456781987651000_pdf .exe
Size

857KB
MD5

862a815ffdf58d6c2ae62a2948658e74
SHA1

df09b761005eba5e45cc3c1503cf2761077d4c49
SHA256

c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95
SHA512

95a79ac52b0b36b4232fdd7a49dca9dfd1be0ae5bc9ae98020e4150e8c8d5859103cf8a7d07773f86ee1841939817022071f46e7893c09826ff204ceab690099
SSDEEP

12288:L2/pKmJAagHvRnAmqgc/SdORHmV1ujAcV0szEZbnRQuNbNhPDDSXG:L2/pL+RvCT/SoRHmKgszEZNZH4G

Score

10^/10

formbook xloader b6qc loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

b6qc

Decoy

etofood.com

bigtimberroofingnc.com

jacque.doctor

9588uy.site

nosceremonies-lefilm.com

xposetattoosjaipur.com

universalwebbinq.com

klthealthfrancesarl.com

tinyhome.deals

neroivr.com

floridaappeals.net

vladartsmith.com

chatbothealthcare.com

akutansi.online

appointmentcart.com

vertue.xyz

healthplanslakeland.com

es-verification.biz

thatsod.com

521ini.xyz

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1952-62-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1952-63-0x000000000041F310-mapping.dmp	xloader
behavioral1/memory/1952-65-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/928-71-0x0000000000070000-0x000000000009B000-memory.dmp	xloader
behavioral1/memory/928-76-0x0000000000070000-0x000000000009B000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\XTXXEX50_D9 = "C:\\Program Files (x86)\\Bd0h4kzi\\winrfih0.exe"	wscript.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

684 cmd.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
684	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

doc001876543456781987651000_pdf .exedoc001876543456781987651000_pdf .exewscript.exe

description	pid	process	target process
PID 856 set thread context of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1952 set thread context of 1236	1952	doc001876543456781987651000_pdf .exe	Explorer.EXE
PID 928 set thread context of 1236	928	wscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Bd0h4kzi\winrfih0.exe wscript.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Bd0h4kzi\winrfih0.exe	wscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1214520366-621468234-4062160515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

doc001876543456781987651000_pdf .exewscript.exe

pid	process
1952	doc001876543456781987651000_pdf .exe
1952	doc001876543456781987651000_pdf .exe
928	wscript.exe
928	wscript.exe
928	wscript.exe
928	wscript.exe
928	wscript.exe
928	wscript.exe
928	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE

pid	process
1236	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

doc001876543456781987651000_pdf .exewscript.exe

pid	process
1952	doc001876543456781987651000_pdf .exe
1952	doc001876543456781987651000_pdf .exe
1952	doc001876543456781987651000_pdf .exe
928	wscript.exe
928	wscript.exe
928	wscript.exe
928	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

doc001876543456781987651000_pdf .exewscript.exe

description	pid	process
Token: SeDebugPrivilege	1952	doc001876543456781987651000_pdf .exe
Token: SeDebugPrivilege	928	wscript.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

doc001876543456781987651000_pdf .exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 856 wrote to memory of 1952	856	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1236 wrote to memory of 928	1236	Explorer.EXE	wscript.exe
PID 1236 wrote to memory of 928	1236	Explorer.EXE	wscript.exe
PID 1236 wrote to memory of 928	1236	Explorer.EXE	wscript.exe
PID 1236 wrote to memory of 928	1236	Explorer.EXE	wscript.exe
PID 928 wrote to memory of 684	928	wscript.exe	cmd.exe
PID 928 wrote to memory of 684	928	wscript.exe	cmd.exe
PID 928 wrote to memory of 684	928	wscript.exe	cmd.exe
PID 928 wrote to memory of 684	928	wscript.exe	cmd.exe
PID 928 wrote to memory of 1188	928	wscript.exe	Firefox.exe
PID 928 wrote to memory of 1188	928	wscript.exe	Firefox.exe
PID 928 wrote to memory of 1188	928	wscript.exe	Firefox.exe
PID 928 wrote to memory of 1188	928	wscript.exe	Firefox.exe
PID 928 wrote to memory of 1188	928	wscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	wscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236

C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe
"C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:856

C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe
"C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1952

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Adds policy 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
- System policy modification
PID:928

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
3⤵
- Deletes itself
PID:684

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1188

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/684-73-0x0000000000000000-mapping.dmp

Download
memory/856-55-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/856-56-0x0000000000960000-0x0000000000976000-memory.dmp

Filesize
88KB

Download
memory/856-57-0x0000000005E30000-0x0000000005EBE000-memory.dmp

Filesize
568KB

Download
memory/856-58-0x00000000042E0000-0x0000000004312000-memory.dmp

Filesize
200KB

Download
memory/856-54-0x0000000000E00000-0x0000000000EDC000-memory.dmp

Filesize
880KB

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

Download
memory/928-71-0x0000000000070000-0x000000000009B000-memory.dmp

Filesize
172KB

Download
memory/928-76-0x0000000000070000-0x000000000009B000-memory.dmp

Filesize
172KB

Download
memory/928-74-0x00000000022A0000-0x0000000002330000-memory.dmp

Filesize
576KB

Download
memory/928-70-0x00000000003A0000-0x00000000003C6000-memory.dmp

Filesize
152KB

Download
memory/928-72-0x0000000001F90000-0x0000000002293000-memory.dmp

Filesize
3.0MB

Download
memory/1236-78-0x00000000043D0000-0x00000000044BF000-memory.dmp

Filesize
956KB

Download
memory/1236-68-0x0000000004C10000-0x0000000004D7A000-memory.dmp

Filesize
1.4MB

Download
memory/1236-75-0x00000000043D0000-0x00000000044BF000-memory.dmp

Filesize
956KB

Download
memory/1952-59-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1952-67-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/1952-66-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/1952-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1952-63-0x000000000041F310-mapping.dmp

Download
memory/1952-62-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1952-60-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads