formbook | 594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 13:22

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General

Target

Invoice#45.exe
Size

1.1MB
MD5

606756c712cb86af9ce0ec454fe92c99
SHA1

7d5000c5d2a1b5b88039994db9dfa17941170c0c
SHA256

594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730
SHA512

58354f340dc460275137fb25fd175e4cd52a4dcb40f750007a5ba5c68b13a2f5083a372210f5cfb80cd91c8700f425f7bdb37eecdc626b5feb829ecd43151ba3
SSDEEP

24576:utb20pkaCqT5TBWgNQ7aK3ngGxIKLgh06A:bVg5tQ7ainPxIK35

Score

10^/10

formbook bi05 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi05

Decoy

ollow-the-bit.online

aopho.autos

14ra567dp.autos

48651301.top

ussian-dating-54714.bond

sychology-degree-80838.bond

lytracker.xyz

strology-forest.sbs

swjbcl3.top

ridgenexttechnologies.partners

lroy.sbs

kyscreen.vip

anhit.live

uckyheart.xyz

orddserials.online

hetune.shop

nherited-traits-ant.bond

stanaslot-1.xyz

sychologist-therapy-36914.bond

iandramonami.net

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
behavioral2/memory/1924-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1924-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4656-21-0x0000000001120000-0x000000000114F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 1924	2876	Invoice#45.exe	89
PID 1924 set thread context of 3456	1924	svchost.exe	56
PID 4656 set thread context of 3456	4656	cscript.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	Invoice#45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1924	svchost.exe
1924	svchost.exe
1924	svchost.exe
1924	svchost.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe
4656	cscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2876	Invoice#45.exe
1924	svchost.exe
1924	svchost.exe
1924	svchost.exe
4656	cscript.exe
4656	cscript.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	svchost.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeDebugPrivilege	4656	cscript.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2876	Invoice#45.exe
2876	Invoice#45.exe
3456	Explorer.EXE
3456	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2876	Invoice#45.exe
2876	Invoice#45.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 1924	2876	Invoice#45.exe	89
PID 2876 wrote to memory of 1924	2876	Invoice#45.exe	89
PID 2876 wrote to memory of 1924	2876	Invoice#45.exe	89
PID 2876 wrote to memory of 1924	2876	Invoice#45.exe	89
PID 3456 wrote to memory of 4656	3456	Explorer.EXE	90
PID 3456 wrote to memory of 4656	3456	Explorer.EXE	90
PID 3456 wrote to memory of 4656	3456	Explorer.EXE	90
PID 4656 wrote to memory of 3692	4656	cscript.exe	92
PID 4656 wrote to memory of 3692	4656	cscript.exe	92
PID 4656 wrote to memory of 3692	4656	cscript.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1924
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:4656
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3692

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

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Downloads

memory/1924-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-13-0x0000000001B00000-0x0000000001E4A000-memory.dmp

Filesize
3.3MB

Download
memory/1924-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1924-16-0x0000000001E50000-0x0000000001E64000-memory.dmp

Filesize
80KB

Download
memory/2876-11-0x0000000002160000-0x0000000002164000-memory.dmp

Filesize
16KB

Download
memory/3456-22-0x0000000008250000-0x00000000083F4000-memory.dmp

Filesize
1.6MB

Download
memory/3456-17-0x0000000008250000-0x00000000083F4000-memory.dmp

Filesize
1.6MB

Download
memory/3456-26-0x00000000089C0000-0x0000000008A78000-memory.dmp

Filesize
736KB

Download
memory/3456-27-0x00000000089C0000-0x0000000008A78000-memory.dmp

Filesize
736KB

Download
memory/3456-29-0x00000000089C0000-0x0000000008A78000-memory.dmp

Filesize
736KB

Download
memory/4656-18-0x00000000003C0000-0x00000000003E7000-memory.dmp

Filesize
156KB

Download
memory/4656-20-0x00000000003C0000-0x00000000003E7000-memory.dmp

Filesize
156KB

Download
memory/4656-21-0x0000000001120000-0x000000000114F000-memory.dmp

Filesize
188KB

Download