formbook | 676dd73ec1a0a71496fc607ff2d8addea8d09b402a78947640d59eb86c9f87cc

General

Target

RFQ 1024.scr
Size

649KB
MD5

1366223ed40a1a49c6509a9d7c308d45
SHA1

0ebe3c24e44b842096cb55839bbc2ba9a0db3996
SHA256

48b1fedfda70deb6e9daab21da06e53950f54c828c40a7390b63baf0a93c956f
SHA512

bbfca208f541bbd0cc0a8c757bc5d36ce4fdc8892eb069cb223b474dbd28cc5c29a069d14c3e6a0a641d5a1dd46c0741550ee3cb13f022de7dba342b7810fbab
SSDEEP

12288:RnCMxdmEi+hKB6yRP1aZueG0sNhes6EiR9koplkR:3xYEiL51cujNhesfijkou

Score

10^/10

formbook c24t discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

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
behavioral1/memory/1720-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1720-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2568-23-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2812	powershell.exe

Deletes itself 1 IoCs

pid	Process
2924	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 1720	2660	RFQ 1024.scr	32
PID 1720 set thread context of 1260	1720	RFQ 1024.scr	21
PID 2568 set thread context of 1260	2568	mstsc.exe	21

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 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	RFQ 1024.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2660	RFQ 1024.scr
2660	RFQ 1024.scr
1720	RFQ 1024.scr
1720	RFQ 1024.scr
2812	powershell.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe
2568	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1720	RFQ 1024.scr
1720	RFQ 1024.scr
1720	RFQ 1024.scr
2568	mstsc.exe
2568	mstsc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	RFQ 1024.scr
Token: SeDebugPrivilege	1720	RFQ 1024.scr
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	2568	mstsc.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2812	2660	RFQ 1024.scr	30
PID 2660 wrote to memory of 2812	2660	RFQ 1024.scr	30
PID 2660 wrote to memory of 2812	2660	RFQ 1024.scr	30
PID 2660 wrote to memory of 2812	2660	RFQ 1024.scr	30
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 2660 wrote to memory of 1720	2660	RFQ 1024.scr	32
PID 1260 wrote to memory of 2568	1260	Explorer.EXE	33
PID 1260 wrote to memory of 2568	1260	Explorer.EXE	33
PID 1260 wrote to memory of 2568	1260	Explorer.EXE	33
PID 1260 wrote to memory of 2568	1260	Explorer.EXE	33
PID 2568 wrote to memory of 2924	2568	mstsc.exe	34
PID 2568 wrote to memory of 2924	2568	mstsc.exe	34
PID 2568 wrote to memory of 2924	2568	mstsc.exe	34
PID 2568 wrote to memory of 2924	2568	mstsc.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr
  "C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr" /S
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2812
- - C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr
    "C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1720
- 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:2568
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\RFQ 1024.scr"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1260-19-0x0000000007650000-0x0000000007756000-memory.dmp

Filesize
1.0MB

Download
memory/1260-24-0x0000000007650000-0x0000000007756000-memory.dmp

Filesize
1.0MB

Download
memory/1720-15-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1720-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-18-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/1720-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-22-0x0000000000BB0000-0x0000000000CB4000-memory.dmp

Filesize
1.0MB

Download
memory/2568-23-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2660-6-0x00000000056C0000-0x0000000005736000-memory.dmp

Filesize
472KB

Download
memory/2660-5-0x0000000074210000-0x00000000748FE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-14-0x0000000074210000-0x00000000748FE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-0-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download
memory/2660-2-0x0000000074210000-0x00000000748FE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-4-0x000000007421E000-0x000000007421F000-memory.dmp

Filesize
4KB

Download
memory/2660-3-0x00000000004D0000-0x00000000004E8000-memory.dmp

Filesize
96KB

Download
memory/2660-1-0x0000000001190000-0x0000000001236000-memory.dmp

Filesize
664KB

Download

Analysis

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