formbook | 18d42895a0a37161199e0f3da093cb3057f71a608866a3d3284c83a7b90dbf81

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
28/07/2024, 17:35

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General

Target
$TEMP/Conservatory.dll
Size 43KB
Sample240728-v6d9bsvfpp
SHA256 0a5e2d346b9e7296275bf79fbda56cfc21a8af540b836dba04df1b6270bfe2c3
MD5 255c2887e6b5f9756a9a473952e0807a
SHA1 b13718feb8e932e6a59d76a9984fa043d6f7826b
SHA512 e45ee410d61639ea098c9d8f831126d62cb67144834e6da6bab5c929cc8fe7a92493ef8a0c83c73b19942540318598987214c6b3377d6959425a91d269527823
SSDEEP 768:GTLZ/ZYB0KBLqpnn9rhwmmnTEDi4hvyPTsU9MBacUlT:GTt/ZQ0EM99MJbdMUcUlT
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook c233 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

c233

Decoy

concentratedprerolls.com
17aia.com
the-mistershop.com
pro-ecare.com
hushkeeper.com
zhmeiju.com
locationdd.com
rupanaa.com
smartlivegt.com
oidhlima.com
climpuright.icu
shopmaincollection.com
divineconsciousnessacademy.com
lumenhealthandwellness.com
relicstudios.net
gamelosophers.com
minimalismoweb.com
ecoapiaryfarms.com
siyuechuanmei.com
advincicode.com
rzpte.com
qualitygenerallegalhelp.website
gregorywise.com
indiankhedu.com
sarabarlow.com
travel-vermont.net
6960081.com
abcantrack.com
profitableadvisors.com
affilexample6.com
alfacapital.fund
henesymarte.com
snelitepainting.com
lentosrestaurant.com
flosparkling.com
easyasit.com
thislandselfcare.com
corkandmauve.com
mitchellexperience.com
affilitatedphysicians.com
froovesell.com
dontcarehoodie.com
doordelensvananouk.com
lithoprints.art
xn--c1abvlc0ba.xn--p1acf
fallmoblie.com
jacryp.com
leafsayang.com
brokervimarart.com
frootroot.com
socasagaboys.com
forestgrovetreeservicellc.com
westernmurraylig.online
camisetasretrodefutbol.com
cevebe-orles.com
windwavebb.com
698bq.com
dp3z.com
hoalanvietkhanh.com
kendallsla.com
webcommerceplaces.com
vortexdefi.com
vxpmeeting.com
bestnewbusiness2020.com
glowtey.com

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
behavioral32/memory/4700-5-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral32/memory/4700-7-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral32/memory/4700-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4700 set thread context of 3508	4700	cmd.exe	56
PID 4700 set thread context of 3508	4700	cmd.exe	56
PID 4956 set thread context of 3508	4956	raserver.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
556	rundll32.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe
4956	raserver.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
556	rundll32.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4700	cmd.exe
4956	raserver.exe
4956	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4700	cmd.exe
Token: SeDebugPrivilege	4956	raserver.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3508	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 556	1212	rundll32.exe	84
PID 1212 wrote to memory of 556	1212	rundll32.exe	84
PID 1212 wrote to memory of 556	1212	rundll32.exe	84
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86
PID 556 wrote to memory of 4700	556	rundll32.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
PID:3508
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\Conservatory.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1212
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\Conservatory.dll,#1
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:556
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4700
- 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
  PID:4956
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\cmd.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4120

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

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Downloads

memory/556-0-0x00000000026D0000-0x00000000026D3000-memory.dmp

Download

memory/556-1-0x0000000075360000-0x0000000075428000-memory.dmp

Download

memory/556-2-0x0000000075DE0000-0x0000000075E43000-memory.dmp

Download

memory/556-4-0x0000000075360000-0x0000000075428000-memory.dmp

Download

memory/3508-12-0x0000000003340000-0x00000000033F9000-memory.dmp

Download

memory/4700-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

Download

memory/4700-5-0x0000000000400000-0x000000000042E000-memory.dmp

Download

memory/4700-7-0x0000000000400000-0x000000000042E000-memory.dmp

Download

memory/4700-9-0x0000000000400000-0x000000000042E000-memory.dmp

Download

memory/4956-8-0x0000000000980000-0x000000000099F000-memory.dmp

Download

memory/4956-10-0x0000000000980000-0x000000000099F000-memory.dmp

Download