formbook | 31a702cd5ff00baefbeb5f301ca3015587a099b0046939cc3d1e8cd553eb3147

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-10-2024 13:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

P.O.exe
Size

556KB
MD5

283809f80d5c24b3eb3e917a5b3c4c53
SHA1

1da1a8aec833aaa560e50170407f4d371b9cbca9
SHA256

31a702cd5ff00baefbeb5f301ca3015587a099b0046939cc3d1e8cd553eb3147
SHA512

792a0adcaefdb0e5bec5e820f1070bbd5235f1407638dc8365f56592a5947fd1c38d74ddd2d6fe29dab9e1d171ccee26638b10e4157e01304da228da7a162e2b
SSDEEP

12288:QgUSUpCEg1GSbvTOfkeepuEAewOlCXwxYsGpSuMDKaqfr2:Q+Q7g117O8FwEAeFlf8haN

Score

10^/10

formbook c24t discovery 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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2000-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2000-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/228-24-0x0000000000D60000-0x0000000000D8F000-memory.dmp	formbook
behavioral2/memory/228-26-0x0000000000D60000-0x0000000000D8F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 2000	4436	P.O.exe	97
PID 2000 set thread context of 3444	2000	P.O.exe	56
PID 228 set thread context of 3444	228	msiexec.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	P.O.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
2000	P.O.exe
2000	P.O.exe
2000	P.O.exe
2000	P.O.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe
228	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2000	P.O.exe
2000	P.O.exe
2000	P.O.exe
228	msiexec.exe
228	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	P.O.exe
Token: SeDebugPrivilege	228	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3444	Explorer.EXE
3444	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3444	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 4436 wrote to memory of 2000	4436	P.O.exe	97
PID 3444 wrote to memory of 228	3444	Explorer.EXE	98
PID 3444 wrote to memory of 228	3444	Explorer.EXE	98
PID 3444 wrote to memory of 228	3444	Explorer.EXE	98
PID 228 wrote to memory of 4984	228	msiexec.exe	99
PID 228 wrote to memory of 4984	228	msiexec.exe	99
PID 228 wrote to memory of 4984	228	msiexec.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\P.O.exe
  "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4436
- - C:\Users\Admin\AppData\Local\Temp\P.O.exe
    "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2000
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:228
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\P.O.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/228-19-0x0000000000A80000-0x0000000000A92000-memory.dmp

Filesize
72KB

Download
memory/228-28-0x0000000002D30000-0x0000000002DC3000-memory.dmp

Filesize
588KB

Download
memory/228-26-0x0000000000D60000-0x0000000000D8F000-memory.dmp

Filesize
188KB

Download
memory/228-25-0x0000000002F60000-0x00000000032AA000-memory.dmp

Filesize
3.3MB

Download
memory/228-24-0x0000000000D60000-0x0000000000D8F000-memory.dmp

Filesize
188KB

Download
memory/228-21-0x0000000000A80000-0x0000000000A92000-memory.dmp

Filesize
72KB

Download
memory/228-23-0x0000000000A80000-0x0000000000A92000-memory.dmp

Filesize
72KB

Download
memory/2000-17-0x0000000001A80000-0x0000000001A94000-memory.dmp

Filesize
80KB

Download
memory/2000-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-14-0x00000000015D0000-0x000000000191A000-memory.dmp

Filesize
3.3MB

Download
memory/3444-27-0x0000000002850000-0x000000000296A000-memory.dmp

Filesize
1.1MB

Download
memory/3444-31-0x0000000008080000-0x00000000081AA000-memory.dmp

Filesize
1.2MB

Download
memory/3444-35-0x0000000008080000-0x00000000081AA000-memory.dmp

Filesize
1.2MB

Download
memory/3444-33-0x0000000008080000-0x00000000081AA000-memory.dmp

Filesize
1.2MB

Download
memory/3444-32-0x00007FFF7EFFA000-0x00007FFF7EFFB000-memory.dmp

Filesize
4KB

Download
memory/3444-18-0x0000000002850000-0x000000000296A000-memory.dmp

Filesize
1.1MB

Download
memory/4436-4-0x0000000004D70000-0x0000000004D7A000-memory.dmp

Filesize
40KB

Download
memory/4436-6-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

Filesize
624KB

Download
memory/4436-5-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/4436-13-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/4436-3-0x0000000004BE0000-0x0000000004C72000-memory.dmp

Filesize
584KB

Download
memory/4436-2-0x00000000050F0000-0x0000000005694000-memory.dmp

Filesize
5.6MB

Download
memory/4436-8-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/4436-1-0x0000000000130000-0x00000000001C2000-memory.dmp

Filesize
584KB

Download
memory/4436-7-0x00000000050C0000-0x00000000050D2000-memory.dmp

Filesize
72KB

Download
memory/4436-9-0x0000000074CB0000-0x0000000075460000-memory.dmp

Filesize
7.7MB

Download
memory/4436-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/4436-10-0x0000000006160000-0x00000000061D6000-memory.dmp

Filesize
472KB

Download