formbook | c9fd4faec6e143563890f5fa1008ecf9d66fecfef294b883a65439dd71dd8b8f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 19:43

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General

Target

0133_3674633_83637598_3647,pdf.exe
Size

1.3MB
MD5

c3f45e9d88589b1ff6a362dddd17c55d
SHA1

92d450501abdeb9148dc5ae2fcf20cbb98451d12
SHA256

c9ccfbfa367975e9c021bb6dc0d0bd42b31922c328a46d8547e28f11c55c689e
SHA512

0e539f253b20c1a4d59a5b44e0417d18e22f58ca1f4fe1118048c47f05d5bd2a672d7aafb63ae8501569840f98e04d61e6e15ea35fd942c903612e516b938062
SSDEEP

24576:/7E1X+6AX8B26SLmfpL8qn/ytBgXfKnks1qUhVJR1IoIhI:/uX+6Ao2FaL5natBBnks1zLR1IoIhI

Score

10^/10

formbook ch24 discovery evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ch24

Decoy

tmicp.com

lauriceiker.quest

neighbor-works.com

santiemprenderich.wiki

thecraftytxdogmom.com

abramolfactory.com

prettylittlesoles.com

thistimeandilove.space

imperialshaving.com

aflorideallgarden.com

thbfjs.com

marketmove.info

echocoins.com

ztkzw.com

sandyhookfishandribhouse.com

gamesxfr.com

frontline500.com

cbburrnet.com

boliviaoferta.com

jdzmklc.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/1492-8-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral2/memory/1492-11-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral2/memory/1492-18-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral2/memory/3192-25-0x0000000000D40000-0x0000000000D6F000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	0133_3674633_83637598_3647,pdf.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	0133_3674633_83637598_3647,pdf.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0133_3674633_83637598_3647,pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0133_3674633_83637598_3647,pdf.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0133_3674633_83637598_3647,pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	0133_3674633_83637598_3647,pdf.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4784 set thread context of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 1492 set thread context of 3556	1492	control.exe	56
PID 1492 set thread context of 3556	1492	control.exe	56
PID 3192 set thread context of 3556	3192	netsh.exe	56

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0133_3674633_83637598_3647,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
1492	control.exe
1492	control.exe
1492	control.exe
1492	control.exe
4784	0133_3674633_83637598_3647,pdf.exe
4784	0133_3674633_83637598_3647,pdf.exe
1492	control.exe
1492	control.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe
3192	netsh.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1492	control.exe
1492	control.exe
1492	control.exe
1492	control.exe
3192	netsh.exe
3192	netsh.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	0133_3674633_83637598_3647,pdf.exe
Token: SeDebugPrivilege	1492	control.exe
Token: SeDebugPrivilege	3192	netsh.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 4784 wrote to memory of 1492	4784	0133_3674633_83637598_3647,pdf.exe	84
PID 3556 wrote to memory of 3192	3556	Explorer.EXE	86
PID 3556 wrote to memory of 3192	3556	Explorer.EXE	86
PID 3556 wrote to memory of 3192	3556	Explorer.EXE	86
PID 3192 wrote to memory of 1756	3192	netsh.exe	87
PID 3192 wrote to memory of 1756	3192	netsh.exe	87
PID 3192 wrote to memory of 1756	3192	netsh.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Users\Admin\AppData\Local\Temp\0133_3674633_83637598_3647,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\0133_3674633_83637598_3647,pdf.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4784
- - C:\Windows\SysWOW64\control.exe
    "C:\Windows\SysWOW64\control.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1492
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3192
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\control.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1492-9-0x0000000001390000-0x00000000016DA000-memory.dmp

Filesize
3.3MB

Download
memory/1492-18-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1492-19-0x00000000017E0000-0x00000000017F4000-memory.dmp

Filesize
80KB

Download
memory/1492-12-0x0000000001320000-0x0000000001334000-memory.dmp

Filesize
80KB

Download
memory/1492-11-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/1492-8-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/3192-25-0x0000000000D40000-0x0000000000D6F000-memory.dmp

Filesize
188KB

Download
memory/3192-24-0x0000000001490000-0x00000000014AE000-memory.dmp

Filesize
120KB

Download
memory/3192-22-0x0000000001490000-0x00000000014AE000-memory.dmp

Filesize
120KB

Download
memory/3556-21-0x00000000081F0000-0x0000000008351000-memory.dmp

Filesize
1.4MB

Download
memory/3556-26-0x0000000008400000-0x0000000008531000-memory.dmp

Filesize
1.2MB

Download
memory/3556-32-0x0000000002D10000-0x0000000002DFB000-memory.dmp

Filesize
940KB

Download
memory/3556-13-0x00000000081F0000-0x0000000008351000-memory.dmp

Filesize
1.4MB

Download
memory/3556-31-0x0000000002D10000-0x0000000002DFB000-memory.dmp

Filesize
940KB

Download
memory/3556-29-0x0000000002D10000-0x0000000002DFB000-memory.dmp

Filesize
940KB

Download
memory/3556-20-0x0000000008400000-0x0000000008531000-memory.dmp

Filesize
1.2MB

Download
memory/4784-16-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4784-4-0x0000000004BE0000-0x0000000004CA0000-memory.dmp

Filesize
768KB

Download
memory/4784-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/4784-3-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/4784-2-0x0000000004B40000-0x0000000004BDC000-memory.dmp

Filesize
624KB

Download
memory/4784-1-0x0000000000040000-0x0000000000198000-memory.dmp

Filesize
1.3MB

Download
memory/4784-5-0x0000000004AF0000-0x0000000004B2C000-memory.dmp

Filesize
240KB

Download
memory/4784-6-0x0000000006620000-0x0000000006BC4000-memory.dmp

Filesize
5.6MB

Download
memory/4784-15-0x0000000071DF5000-0x0000000071DF6000-memory.dmp

Filesize
4KB

Download
memory/4784-7-0x0000000006150000-0x00000000061B6000-memory.dmp

Filesize
408KB

Download