formbook | 1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30

Analysis

max time kernel
148s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
05-08-2024 07:09

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General

Target

MalwareBazaar.exe
Size

653KB
MD5

4f9709aa08fb342403b4a9d952419184
SHA1

07913a57cfe7e1674525397f571ae98d3195a11c
SHA256

1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30
SHA512

cde7fe3db0ee4fd1876e3b40601e4d9c81ae4b2fa525335d183c9d0314fde6eaaa5820303d3fd2eb0a008f09511c08967fe0ba00fea83c9dee8d98d80f513fe0
SSDEEP

12288:3Zxa/zmcDXmyLO609WOgt3MbOSJ6gAFss9ewhMBdULG503vdPlLVBkR:3ZxaakZb0wr3MRJ7U9ZMBYG503DLVc

Score

10^/10

formbook v15n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

v15n

Decoy

dyahwoahjuk.store

toysstorm.com

y7rak9.com

2222233p6.shop

betbox2341.com

visualvarta.com

nijssenadventures.com

main-12.site

leng4d.net

kurainu.xyz

hatesa.xyz

culturamosaica.com

supermallify.store

gigboard.app

rxforgive.com

ameliestones.com

kapalwin.live

tier.credit

sobol-ksa.com

faredeal.online

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2728-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2864-28-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2412	powershell.exe
2828	powershell.exe

Deletes itself 1 IoCs

pid	Process
2056	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 2728	1940	MalwareBazaar.exe	36
PID 2728 set thread context of 1204	2728	MalwareBazaar.exe	21
PID 2864 set thread context of 1204	2864	svchost.exe	21

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 6 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MalwareBazaar.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2728	MalwareBazaar.exe
2728	MalwareBazaar.exe
2412	powershell.exe
2828	powershell.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe
2864	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2728	MalwareBazaar.exe
2728	MalwareBazaar.exe
2728	MalwareBazaar.exe
2864	svchost.exe
2864	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	MalwareBazaar.exe
Token: SeDebugPrivilege	2412	powershell.exe
Token: SeDebugPrivilege	2828	powershell.exe
Token: SeDebugPrivilege	2864	svchost.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2412	1940	MalwareBazaar.exe	30
PID 1940 wrote to memory of 2412	1940	MalwareBazaar.exe	30
PID 1940 wrote to memory of 2412	1940	MalwareBazaar.exe	30
PID 1940 wrote to memory of 2412	1940	MalwareBazaar.exe	30
PID 1940 wrote to memory of 2828	1940	MalwareBazaar.exe	32
PID 1940 wrote to memory of 2828	1940	MalwareBazaar.exe	32
PID 1940 wrote to memory of 2828	1940	MalwareBazaar.exe	32
PID 1940 wrote to memory of 2828	1940	MalwareBazaar.exe	32
PID 1940 wrote to memory of 2740	1940	MalwareBazaar.exe	34
PID 1940 wrote to memory of 2740	1940	MalwareBazaar.exe	34
PID 1940 wrote to memory of 2740	1940	MalwareBazaar.exe	34
PID 1940 wrote to memory of 2740	1940	MalwareBazaar.exe	34
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1940 wrote to memory of 2728	1940	MalwareBazaar.exe	36
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	37
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	37
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	37
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	37
PID 2864 wrote to memory of 2056	2864	svchost.exe	39
PID 2864 wrote to memory of 2056	2864	svchost.exe	39
PID 2864 wrote to memory of 2056	2864	svchost.exe	39
PID 2864 wrote to memory of 2056	2864	svchost.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2412
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dacYzRiJuWECy.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2828
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dacYzRiJuWECy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCC25.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2740
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:2864
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCC25.tmp

Filesize
1KB

MD5
40803061b96c88c183b7fac2858a3e40

SHA1
004f8dd27e35c6f578ec3899edb328c6940dca1d

SHA256
dffd3fb24f711b0ecdd5223de95371be6a34ffa9e8511a96592f999b12b6f4d8

SHA512
b95dbfdaa009ae668d27ef99cb7ef870c5f6281752c5042f44cb338dcf9ac2c77af9f031f779a54fa296124c4480f61b2e18bf4e777e3b5ffe1aec1df7feee2f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\W0BMVO9DHTG5RTLJYYEM.temp

Filesize
7KB

MD5
7a071e1abde38e2a1dbe563a2dc9d873

SHA1
2db9b3349e60274305645702f61b76960753b47e

SHA256
f4bf51e81f5fa64f59ed4a9df9d8d28047f1b1f7a7e6a8bf4043728a28df3490

SHA512
446a3bd861bbb938176f5e0873b38c2d8abb42a11a0ecece435b938b8ded7a140dae3ac48081846b138d12a3872a66662d37061a1cc9046354158f317f8854b4

Download Submit
memory/1940-4-0x0000000000480000-0x000000000048E000-memory.dmp

Filesize
56KB

Download
memory/1940-25-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-0-0x000000007452E000-0x000000007452F000-memory.dmp

Filesize
4KB

Download
memory/1940-5-0x00000000008F0000-0x0000000000906000-memory.dmp

Filesize
88KB

Download
memory/1940-6-0x0000000004E00000-0x0000000004E76000-memory.dmp

Filesize
472KB

Download
memory/1940-2-0x0000000074520000-0x0000000074C0E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-1-0x00000000011C0000-0x0000000001266000-memory.dmp

Filesize
664KB

Download
memory/1940-3-0x00000000008D0000-0x00000000008E8000-memory.dmp

Filesize
96KB

Download
memory/2728-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2728-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2728-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2864-27-0x0000000000EA0000-0x0000000000EA8000-memory.dmp

Filesize
32KB

Download
memory/2864-28-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download