formbook | 1ebcadef0f2790a5c28cc8d6100007eb6a82a0cf7fc582e7595fa9a3407d3049

Analysis

max time kernel
147s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 17:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

$PLUGINSDIR/2g6ght2plrugud.dll
Size

5KB
MD5

64ade443342d3aa3790c2846abf93959
SHA1

d6668f6881d40dc3dc3d1f627f2721e1d333e698
SHA256

ea1deb95fa6614524006ee3260957aef27ebd563f609dde680cace5f2ea09e45
SHA512

2fdce6c768ded710d6d011be5317b184a09e10058145bdff545e83df63f5e0f46db4f679161174397b37d0fb2f43abe7275405845742e4a73bc6ef995edf4845
SSDEEP

48:aiVuJ3n1ASkT3rNDZbitP8XgRYB0K/PbKq1nh/SS72+DtMYquSzieLURuqS:/43n1ASkfNDZ+tBYB0A/2otsJzax

Score

10^/10

formbook dxe discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dxe

Decoy

sardarfarm.com

959tremont.com

privat-livecam.net

ansel-homebakery.com

joysupermarket.com

peninsulamatchmakers.net

northsytyle.com

radioconexaoubermusic.com

relocatingrealtor.com

desyrnan.com

onlinehoortoestel.online

enpointe.online

rvvikings.com

paulpoirier.com

shitarpa.net

kerneis.net

rokitreach.com

essentiallygaia.com

prestiged.net

fuerzaagavera.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral4/memory/4008-1-0x0000000000270000-0x000000000029E000-memory.dmp	formbook
behavioral4/memory/4008-5-0x0000000000270000-0x000000000029E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1712 set thread context of 4008	1712	rundll32.exe	86
PID 4008 set thread context of 3452	4008	rundll32.exe	56
PID 1664 set thread context of 3452	1664	wscript.exe	56

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4008	rundll32.exe
4008	rundll32.exe
4008	rundll32.exe
4008	rundll32.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe
1664	wscript.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1712	rundll32.exe
1712	rundll32.exe
4008	rundll32.exe
4008	rundll32.exe
4008	rundll32.exe
1664	wscript.exe
1664	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4008	rundll32.exe
Token: SeDebugPrivilege	1664	wscript.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 1712	3316	rundll32.exe	85
PID 3316 wrote to memory of 1712	3316	rundll32.exe	85
PID 3316 wrote to memory of 1712	3316	rundll32.exe	85
PID 1712 wrote to memory of 4008	1712	rundll32.exe	86
PID 1712 wrote to memory of 4008	1712	rundll32.exe	86
PID 1712 wrote to memory of 4008	1712	rundll32.exe	86
PID 1712 wrote to memory of 4008	1712	rundll32.exe	86
PID 3452 wrote to memory of 1664	3452	Explorer.EXE	87
PID 3452 wrote to memory of 1664	3452	Explorer.EXE	87
PID 3452 wrote to memory of 1664	3452	Explorer.EXE	87
PID 1664 wrote to memory of 2188	1664	wscript.exe	88
PID 1664 wrote to memory of 2188	1664	wscript.exe	88
PID 1664 wrote to memory of 2188	1664	wscript.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\2g6ght2plrugud.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3316
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\2g6ght2plrugud.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1712
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\2g6ght2plrugud.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4008
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.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:1664
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2188

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/1664-9-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/1664-8-0x00000000005D0000-0x00000000005F7000-memory.dmp

Filesize
156KB

Download
memory/1712-0-0x0000000001410000-0x0000000001412000-memory.dmp

Filesize
8KB

Download
memory/3452-7-0x0000000002B60000-0x0000000002C39000-memory.dmp

Filesize
868KB

Download
memory/3452-10-0x0000000002B60000-0x0000000002C39000-memory.dmp

Filesize
868KB

Download
memory/3452-14-0x0000000003050000-0x000000000316F000-memory.dmp

Filesize
1.1MB

Download
memory/3452-15-0x0000000003050000-0x000000000316F000-memory.dmp

Filesize
1.1MB

Download
memory/3452-17-0x0000000003050000-0x000000000316F000-memory.dmp

Filesize
1.1MB

Download
memory/4008-1-0x0000000000270000-0x000000000029E000-memory.dmp

Filesize
184KB

Download
memory/4008-4-0x00000000024D0000-0x000000000281A000-memory.dmp

Filesize
3.3MB

Download
memory/4008-5-0x0000000000270000-0x000000000029E000-memory.dmp

Filesize
184KB

Download
memory/4008-6-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download