formbook | 70f5e926cb6a97a9f461940ec83fb13ebf330912b871ae2d7870cd49ff306808

Analysis

max time kernel
298s
max time network
300s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2024 01:27

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General

Target

Arrival Notice.exe
Size

772KB
MD5

96df83409286c456fa56c37a0d5098be
SHA1

9140c707f2e625caa4f300ccbc2c1f7136048b64
SHA256

1dab7f07bfa344e601226bc0657decbabd3b421fd207e031ae99ccfbc5637414
SHA512

3ea8150f356a1ba5ab75f6d49db8fa7e0cc86aa850575f605df308de4ba9248739745f5ade53135ac5be167abeb5246b0452141091a3665f0ff19f09e806557f
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLv/ZbzqgYP1Q7aem6GKxA4ElbxKEfbOeuOU5Km3awZ:tthEVaPqLv/Eb2nm8VEHffb/U5Km3ZkG

Score

10^/10

formbook c89p discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c89p

Decoy

ftersaleb.top

dcustomdesgins.net

ostbet2024.live

rhgtrdjdjytkyhretrdjfytd.buzz

atauniversity.tech

idoctor365.net

x-design-courses-29670.bond

ellowold-pc.top

ransportationmmsytpro.top

areerfest.xyz

artiresbah-in.today

ijie.pro

torehousestudio.info

69-11-luxury-watches.shop

earing-tests-44243.bond

hits.shop

hzl9.bond

lood-test-jp-1.bond

livialiving.online

usymomsmakingmoney.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4472-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4472-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3952-15-0x0000000000310000-0x000000000033F000-memory.dmp	formbook

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3916-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral2/memory/3916-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3916-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3916 set thread context of 4472	3916	Arrival Notice.exe	81
PID 4472 set thread context of 3376	4472	svchost.exe	56
PID 3952 set thread context of 3376	3952	raserver.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Arrival Notice.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4472	svchost.exe
4472	svchost.exe
4472	svchost.exe
4472	svchost.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe
3952	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3916	Arrival Notice.exe
4472	svchost.exe
4472	svchost.exe
4472	svchost.exe
3952	raserver.exe
3952	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	svchost.exe
Token: SeDebugPrivilege	3952	raserver.exe
Token: SeShutdownPrivilege	3376	Explorer.EXE
Token: SeCreatePagefilePrivilege	3376	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3916	Arrival Notice.exe
3916	Arrival Notice.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3916	Arrival Notice.exe
3916	Arrival Notice.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 4472	3916	Arrival Notice.exe	81
PID 3916 wrote to memory of 4472	3916	Arrival Notice.exe	81
PID 3916 wrote to memory of 4472	3916	Arrival Notice.exe	81
PID 3916 wrote to memory of 4472	3916	Arrival Notice.exe	81
PID 3376 wrote to memory of 3952	3376	Explorer.EXE	82
PID 3376 wrote to memory of 3952	3376	Explorer.EXE	82
PID 3376 wrote to memory of 3952	3376	Explorer.EXE	82
PID 3952 wrote to memory of 4528	3952	raserver.exe	85
PID 3952 wrote to memory of 4528	3952	raserver.exe	85
PID 3952 wrote to memory of 4528	3952	raserver.exe	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3376
- C:\Users\Admin\AppData\Local\Temp\Arrival Notice.exe
  "C:\Users\Admin\AppData\Local\Temp\Arrival Notice.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Arrival Notice.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4472
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:3952
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3376-23-0x0000000008B10000-0x0000000008C49000-memory.dmp

Filesize
1.2MB

Download
memory/3376-21-0x0000000008B10000-0x0000000008C49000-memory.dmp

Filesize
1.2MB

Download
memory/3376-20-0x0000000008B10000-0x0000000008C49000-memory.dmp

Filesize
1.2MB

Download
memory/3376-16-0x0000000008610000-0x000000000874E000-memory.dmp

Filesize
1.2MB

Download
memory/3376-11-0x0000000008610000-0x000000000874E000-memory.dmp

Filesize
1.2MB

Download
memory/3916-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/3916-3-0x00000000042A0000-0x00000000044A0000-memory.dmp

Filesize
2.0MB

Download
memory/3916-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/3952-14-0x0000000000AC0000-0x0000000000ADF000-memory.dmp

Filesize
124KB

Download
memory/3952-12-0x0000000000AC0000-0x0000000000ADF000-memory.dmp

Filesize
124KB

Download
memory/3952-15-0x0000000000310000-0x000000000033F000-memory.dmp

Filesize
188KB

Download
memory/4472-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4472-10-0x0000000001670000-0x0000000001684000-memory.dmp

Filesize
80KB

Download
memory/4472-7-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/4472-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download