formbook | 2df4ae6ef86f42ce706dfa48d4421b0ce38596b7cc4b4b144a1ad7298ecbbccc

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 21:43

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General

Target

0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
Size

1011KB
MD5

926683bcefaa5c0f235a2ab849910468
SHA1

faad2c56e0daaef20e4fe3b9dc55cc186b05248c
SHA256

0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916
SHA512

ec484bfac455891323d550c957c658201c2f136c62153c7eb85c9ac0b3366b0f75e25005339ef177da31778f73a1eda2f6d253527b37b8c47eee72f0f435f0e5
SSDEEP

24576:bKVAMZ/KKLHceVye1bOTijzw4Go5KGUP:uVAMLf1bQy841KGc

Score

10^/10

formbook k8be discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k8be

Decoy

wakecountyrealtyexpert.com

marianichola.com

artesaniasyalgomas.com

generationstart.xyz

huaiyou.net

takaokaaki.com

akiactu.info

poulmanfatime.com

mosznowladcy.com

post-consumerism.com

mcdonaldscheeseburger.com

mhkxlgs.com

bigbox.pro

littlekylskap.com

tacos-blog.com

leanbellyofficialstore.online

drakesportsmarketing.com

catholicsinglestv.com

gazoo-bike.com

33sexy.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1060-6-0x0000000000400000-0x000000000044F000-memory.dmp	formbook
behavioral2/memory/1060-9-0x0000000000400000-0x000000000044F000-memory.dmp	formbook
behavioral2/memory/4188-17-0x0000000000170000-0x000000000019F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4620 set thread context of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 1060 set thread context of 3436	1060	mountvol.exe	56
PID 4188 set thread context of 3436	4188	cmmon32.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	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mountvol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
1060	mountvol.exe
1060	mountvol.exe
1060	mountvol.exe
1060	mountvol.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe
4188	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1060	mountvol.exe
1060	mountvol.exe
1060	mountvol.exe
4188	cmmon32.exe
4188	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
Token: SeDebugPrivilege	1060	mountvol.exe
Token: SeDebugPrivilege	4188	cmmon32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 4620 wrote to memory of 1060	4620	0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe	84
PID 3436 wrote to memory of 4188	3436	Explorer.EXE	85
PID 3436 wrote to memory of 4188	3436	Explorer.EXE	85
PID 3436 wrote to memory of 4188	3436	Explorer.EXE	85
PID 4188 wrote to memory of 1308	4188	cmmon32.exe	86
PID 4188 wrote to memory of 1308	4188	cmmon32.exe	86
PID 4188 wrote to memory of 1308	4188	cmmon32.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe
  "C:\Users\Admin\AppData\Local\Temp\0ef96ff9377d04bcd3e007944145f1f75a4d35a49c283c705d4439d7551ef916.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4620
- - C:\Windows\SysWOW64\mountvol.exe
    "C:\Windows\SysWOW64\mountvol.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1060
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:4188
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\mountvol.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1308

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/1060-10-0x0000000001790000-0x00000000017A4000-memory.dmp

Filesize
80KB

Download
memory/1060-9-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1060-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1060-7-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/3436-25-0x0000000006E50000-0x0000000006FA8000-memory.dmp

Filesize
1.3MB

Download
memory/3436-23-0x0000000006E50000-0x0000000006FA8000-memory.dmp

Filesize
1.3MB

Download
memory/3436-22-0x0000000006E50000-0x0000000006FA8000-memory.dmp

Filesize
1.3MB

Download
memory/3436-18-0x0000000002750000-0x000000000285E000-memory.dmp

Filesize
1.1MB

Download
memory/3436-11-0x0000000002750000-0x000000000285E000-memory.dmp

Filesize
1.1MB

Download
memory/4188-17-0x0000000000170000-0x000000000019F000-memory.dmp

Filesize
188KB

Download
memory/4188-16-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4188-15-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4620-5-0x0000000005520000-0x000000000554A000-memory.dmp

Filesize
168KB

Download
memory/4620-13-0x0000000072755000-0x0000000072756000-memory.dmp

Filesize
4KB

Download
memory/4620-14-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4620-0-0x0000000074FEE000-0x0000000074FEF000-memory.dmp

Filesize
4KB

Download
memory/4620-4-0x0000000005250000-0x000000000531A000-memory.dmp

Filesize
808KB

Download
memory/4620-3-0x0000000074FE0000-0x0000000075790000-memory.dmp

Filesize
7.7MB

Download
memory/4620-2-0x0000000005330000-0x00000000053CC000-memory.dmp

Filesize
624KB

Download
memory/4620-1-0x0000000000860000-0x0000000000962000-memory.dmp

Filesize
1.0MB

Download