formbook | 2f42f3029723540c5b3526f4d5e8b06c9cb924cb0b53f16be06d63d2faf55ec2

Analysis

max time kernel
150s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2024 02:43

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General

Target

Dhl package - pdf.exe
Size

576KB
MD5

904fd496b076d10ab4fc547559b5d0b4
SHA1

b8e8a890eb523e786793e95a305d319632a60e87
SHA256

3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56
SHA512

3c5f5ca06c0eb27ba1156d8ca3c9d7de23d3383cf8be2bd941bba14b22d81d7142a96c344941f006a82af80f617ee6680a090e56726ad2046580d2ed9374e8c2
SSDEEP

12288:EanbtiNPkq2Nu/RXNV74UlGpVXG455ihwSREfCYCNl2SSDlrgCemY87zvL:ztm8TN8oV2+UwrfCzNlkDl8S77zj

Score

10^/10

formbook c232 credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c232

Decoy

tangdourenfz.com

helpforkids.today

bioethanol-us.com

0351zc.com

3rdimultimedia.com

thecannibisconnection.net

mktoob.net

orchidinvestmentlimited.com

moccustoms.com

shopendora.com

rosariosandino.com

bien-vivre-tunisie.com

godofgreens.com

nhathuocphuongle.com

thefastsource.com

viagra2tadalafil.com

abarroteslacanasta.com

versabiosciences.com

nergiztarimhayvancilik.com

airpodsbayi.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1184-50-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1184-52-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

pid	Process
4000	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8PLPOZVPOD = "C:\\Program Files (x86)\\Dojlhzlb\\mj9l_rchrl7.exe"	wscript.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1184 set thread context of 3436	1184	cmd.exe	56
PID 3404 set thread context of 3436	3404	wscript.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Dojlhzlb\mj9l_rchrl7.exe	wscript.exe

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 5 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dhl package - pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

pid	Process
4000	rundll32.exe
1184	cmd.exe
1184	cmd.exe
1184	cmd.exe
1184	cmd.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4000	rundll32.exe
1184	cmd.exe
1184	cmd.exe
1184	cmd.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe
3404	wscript.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1184	cmd.exe
Token: SeDebugPrivilege	3404	wscript.exe
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 4000	1560	Dhl package - pdf.exe	81
PID 1560 wrote to memory of 4000	1560	Dhl package - pdf.exe	81
PID 1560 wrote to memory of 4000	1560	Dhl package - pdf.exe	81
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82
PID 4000 wrote to memory of 1184	4000	rundll32.exe	82

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\Dhl package - pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Dhl package - pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe Conservatory,Piggins
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4000
  - - 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:1184
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:3404
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\cmd.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4984
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2224
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Bortsch

Filesize
328KB

MD5
0a1abca59ff51574b3ce8e0e9778314d

SHA1
c0d93d6c842297c70581a591b6a7809294749f69

SHA256
fb0c43ea5b29f44aedf038dc5f0dbe25f9678b726cbeb98b7326cb6c54fceaaa

SHA512
678acd9c8e999013238054e8bd771bc07f9c226d7d06b57544b6528cd7adee0f7265d16b2fc74a23c9444096a1fd793a94588d7afdfd71d76308a8acc6d25e2f

Download Submit
C:\Users\Admin\AppData\Local\Temp\Conservatory.DLL

Filesize
43KB

MD5
255c2887e6b5f9756a9a473952e0807a

SHA1
b13718feb8e932e6a59d76a9984fa043d6f7826b

SHA256
0a5e2d346b9e7296275bf79fbda56cfc21a8af540b836dba04df1b6270bfe2c3

SHA512
e45ee410d61639ea098c9d8f831126d62cb67144834e6da6bab5c929cc8fe7a92493ef8a0c83c73b19942540318598987214c6b3377d6959425a91d269527823

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
memory/1184-47-0x0000000000BC0000-0x0000000000BC6000-memory.dmp

Filesize
24KB

Download
memory/1184-50-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1184-52-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3404-53-0x0000000000710000-0x0000000000737000-memory.dmp

Filesize
156KB

Download
memory/3436-56-0x0000000008680000-0x00000000087C3000-memory.dmp

Filesize
1.3MB

Download
memory/4000-44-0x0000000002690000-0x0000000002693000-memory.dmp

Filesize
12KB

Download
memory/4000-45-0x0000000074CF0000-0x0000000074DB8000-memory.dmp

Filesize
800KB

Download
memory/4000-46-0x0000000075F40000-0x0000000075FA3000-memory.dmp

Filesize
396KB

Download
memory/4000-48-0x0000000074CF0000-0x0000000074DB8000-memory.dmp

Filesize
800KB

Download