formbook | d2c3ec17a82adc64cbf865b806ea8df48efcee31a55e5ee6e61de3dccbbcf6bf

Analysis

max time kernel
148s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 02:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Invoice -BF.exe
Size

1.1MB
MD5

a574d8e90f0174f5fe30edb676b9f106
SHA1

e5a008bf01cf36c343fc9d90fc8d728524e33fe5
SHA256

d2c3ec17a82adc64cbf865b806ea8df48efcee31a55e5ee6e61de3dccbbcf6bf
SHA512

04653911205ec9f3c093ac6640cfcd42ef9cd45924c6536d7bf721db672d4459a24c79bfb9771165d2a80cbcf613ca3fd7e481360a0c3498d8c2b33b711ce532
SSDEEP

24576:0tb20pkaCqT5TBWgNQ7ap4hb3i8jR16n6A:dVg5tQ7apijs5

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

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

Processes:

resource	yara_rule
behavioral2/memory/2448-7-0x0000000000450000-0x000000000047F000-memory.dmp	formbook
behavioral2/memory/2448-11-0x0000000000450000-0x000000000047F000-memory.dmp	formbook
behavioral2/memory/2448-15-0x0000000000450000-0x000000000047F000-memory.dmp	formbook
behavioral2/memory/4180-21-0x0000000000340000-0x000000000036F000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/4808-6-0x0000000001240000-0x0000000001640000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Invoice -BF.exesvchost.exechkdsk.exe

description	pid	Process	procid_target
PID 4808 set thread context of 2448	4808	Invoice -BF.exe	83
PID 2448 set thread context of 3472	2448	svchost.exe	56
PID 2448 set thread context of 3472	2448	svchost.exe	56
PID 4180 set thread context of 3472	4180	chkdsk.exe	56

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

Processes:

Invoice -BF.exechkdsk.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice -BF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

chkdsk.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exechkdsk.exe

pid	Process
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe
4180	chkdsk.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

Invoice -BF.exesvchost.exechkdsk.exe

pid	Process
4808	Invoice -BF.exe
4808	Invoice -BF.exe
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
2448	svchost.exe
4180	chkdsk.exe
4180	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exechkdsk.exe

description	pid	Process
Token: SeDebugPrivilege	2448	svchost.exe
Token: SeDebugPrivilege	4180	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Invoice -BF.exe

pid	Process
4808	Invoice -BF.exe
4808	Invoice -BF.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Invoice -BF.exe

pid	Process
4808	Invoice -BF.exe
4808	Invoice -BF.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Invoice -BF.exeExplorer.EXEchkdsk.exe

description	pid	Process	procid_target
PID 4808 wrote to memory of 2448	4808	Invoice -BF.exe	83
PID 4808 wrote to memory of 2448	4808	Invoice -BF.exe	83
PID 4808 wrote to memory of 2448	4808	Invoice -BF.exe	83
PID 4808 wrote to memory of 2448	4808	Invoice -BF.exe	83
PID 3472 wrote to memory of 4180	3472	Explorer.EXE	98
PID 3472 wrote to memory of 4180	3472	Explorer.EXE	98
PID 3472 wrote to memory of 4180	3472	Explorer.EXE	98
PID 4180 wrote to memory of 4784	4180	chkdsk.exe	102
PID 4180 wrote to memory of 4784	4180	chkdsk.exe	102
PID 4180 wrote to memory of 4784	4180	chkdsk.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\Invoice -BF.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice -BF.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:4808
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice -BF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2448
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:5112
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2536
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4220
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3988
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4908
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4180
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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/2448-15-0x0000000000450000-0x000000000047F000-memory.dmp

Filesize
188KB

Download
memory/2448-10-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/2448-16-0x0000000002C40000-0x0000000002C54000-memory.dmp

Filesize
80KB

Download
memory/2448-11-0x0000000000450000-0x000000000047F000-memory.dmp

Filesize
188KB

Download
memory/2448-12-0x0000000000980000-0x0000000000994000-memory.dmp

Filesize
80KB

Download
memory/2448-7-0x0000000000450000-0x000000000047F000-memory.dmp

Filesize
188KB

Download
memory/3472-13-0x0000000002D70000-0x0000000002E54000-memory.dmp

Filesize
912KB

Download
memory/3472-17-0x00000000084F0000-0x000000000861A000-memory.dmp

Filesize
1.2MB

Download
memory/3472-18-0x0000000002D70000-0x0000000002E54000-memory.dmp

Filesize
912KB

Download
memory/3472-22-0x00000000084F0000-0x000000000861A000-memory.dmp

Filesize
1.2MB

Download
memory/3472-25-0x0000000002B70000-0x0000000002C40000-memory.dmp

Filesize
832KB

Download
memory/3472-27-0x0000000002B70000-0x0000000002C40000-memory.dmp

Filesize
832KB

Download
memory/3472-28-0x0000000002B70000-0x0000000002C40000-memory.dmp

Filesize
832KB

Download
memory/4180-19-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/4180-20-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/4180-21-0x0000000000340000-0x000000000036F000-memory.dmp

Filesize
188KB

Download
memory/4808-6-0x0000000001240000-0x0000000001640000-memory.dmp

Filesize
4.0MB

Download