formbook | 3bc0a08eba4fb6dd392f1ebcc76c47a5b1df2c912e364b08b724bf9d1c86e81c

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 04:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

DUE INVOICES-SEPTEMBER 2024.exe
Size

1.1MB
MD5

e935df5b9f8f05c32ee0f9e3e7db5de1
SHA1

3d332bd1f017b6064beab2f625af8943b03ea30b
SHA256

e5bb1ba175379b3456a486c9f2fe575e81b2e772894c6d014220a7eed1ea6b81
SHA512

78d1008e8b9c44271d612199c9c0c98b7eb8d616896b999ea16b70020f21b5ad014f3f2dc4dab9ca00596dbeaf26e602a0ef40e38429f4134f46060b175c52d3
SSDEEP

24576:8RmJkcoQricOIQxiZY1iaASkI0D78XOVMHZmtVTSIltL4zXR0PCmn:pJZoQrbTFZY1iaASk5ce6HZadt0N2Cmn

Score

10^/10

formbook e62s discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

e62s

Decoy

ellinksa.shop

uckyspinph.xyz

owdark.net

arriage-therapy-72241.bond

w7ijko4rv4p97b.top

heirbuzzwords.buzz

aspart.shop

ctivemail5-kagoya-com.info

shacertification9.shop

zitcd65k3.buzz

llkosoi.info

ru8.info

rhgtrdjdjykyetrdjftd.buzz

yschoollist.kiwi

oftfolio.online

rograma-de-almacen-2.online

oudoarms.top

mwquas.xyz

orjagaucha.website

nlinechat-mh.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/2428-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2428-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4432-12-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 2428	1816	DUE INVOICES-SEPTEMBER 2024.exe	87
PID 2428 set thread context of 3420	2428	svchost.exe	56
PID 4432 set thread context of 3420	4432	mstsc.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	DUE INVOICES-SEPTEMBER 2024.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2428	svchost.exe
2428	svchost.exe
2428	svchost.exe
2428	svchost.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe
4432	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1816	DUE INVOICES-SEPTEMBER 2024.exe
2428	svchost.exe
2428	svchost.exe
2428	svchost.exe
4432	mstsc.exe
4432	mstsc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	svchost.exe
Token: SeDebugPrivilege	4432	mstsc.exe
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1816	DUE INVOICES-SEPTEMBER 2024.exe
1816	DUE INVOICES-SEPTEMBER 2024.exe
1816	DUE INVOICES-SEPTEMBER 2024.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1816	DUE INVOICES-SEPTEMBER 2024.exe
1816	DUE INVOICES-SEPTEMBER 2024.exe
1816	DUE INVOICES-SEPTEMBER 2024.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3420	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 2428	1816	DUE INVOICES-SEPTEMBER 2024.exe	87
PID 1816 wrote to memory of 2428	1816	DUE INVOICES-SEPTEMBER 2024.exe	87
PID 1816 wrote to memory of 2428	1816	DUE INVOICES-SEPTEMBER 2024.exe	87
PID 1816 wrote to memory of 2428	1816	DUE INVOICES-SEPTEMBER 2024.exe	87
PID 3420 wrote to memory of 4432	3420	Explorer.EXE	90
PID 3420 wrote to memory of 4432	3420	Explorer.EXE	90
PID 3420 wrote to memory of 4432	3420	Explorer.EXE	90
PID 4432 wrote to memory of 3256	4432	mstsc.exe	93
PID 4432 wrote to memory of 3256	4432	mstsc.exe	93
PID 4432 wrote to memory of 3256	4432	mstsc.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\DUE INVOICES-SEPTEMBER 2024.exe
  "C:\Users\Admin\AppData\Local\Temp\DUE INVOICES-SEPTEMBER 2024.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:1816
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\DUE INVOICES-SEPTEMBER 2024.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2428
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:4432
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3256

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

Loading Replay Monitor...

Downloads

memory/1816-2-0x00000000043C0000-0x00000000047C0000-memory.dmp

Filesize
4.0MB

Download
memory/2428-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2428-4-0x0000000001300000-0x000000000164A000-memory.dmp

Filesize
3.3MB

Download
memory/2428-7-0x0000000000FA0000-0x0000000000FB5000-memory.dmp

Filesize
84KB

Download
memory/2428-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3420-13-0x0000000004270000-0x00000000043C7000-memory.dmp

Filesize
1.3MB

Download
memory/3420-8-0x0000000004270000-0x00000000043C7000-memory.dmp

Filesize
1.3MB

Download
memory/3420-17-0x0000000008620000-0x000000000875B000-memory.dmp

Filesize
1.2MB

Download
memory/3420-18-0x0000000008620000-0x000000000875B000-memory.dmp

Filesize
1.2MB

Download
memory/3420-20-0x0000000008620000-0x000000000875B000-memory.dmp

Filesize
1.2MB

Download
memory/4432-9-0x0000000000600000-0x000000000073A000-memory.dmp

Filesize
1.2MB

Download
memory/4432-11-0x0000000000600000-0x000000000073A000-memory.dmp

Filesize
1.2MB

Download
memory/4432-12-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download