formbook | 256de281ea46412e8c0743811da3d3075fb2ea1891125c1b055d5c0c01d1045f

Analysis

max time kernel
148s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2025 08:50

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General

Target

SKMBT_28324122512260.pdf.exe
Size

1.3MB
MD5

00c66ed3dd9c5c71ff67ab6a4e3656e9
SHA1

a9522924477ac1c8c70e66a1ed007c23fb7e3028
SHA256

256de281ea46412e8c0743811da3d3075fb2ea1891125c1b055d5c0c01d1045f
SHA512

0cbb2fea2e8c485c80b522f4bcda11cd93e390d7237331c99334bccca5e7beeb90edfdd0122a20fb164a43a5aeb329e4a0d74b0bb979cc859fb23e58061dd391
SSDEEP

24576:ktb20pkaCqT5TBWgNQ7a++wVXSsJAzFfaeiwKyod/Qsb6A:NVg5tQ7a++wpSYgMei5yi/H5

Score

10^/10

formbook s94p discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s94p

Decoy

akeimpact.xyz

obsters.online

lsnmarketing.info

mm789.xyz

lack-loan-1232998.fyi

aaafsaneh1.info

nsurance-59975.bond

itricboost.cloud

0011997.xyz

st3jr71.world

winkletown3.store

imhell.cyou

nfluencer-marketing-72763.bond

etirement-plans-42889.bond

ugar-test-lab-near-me.today

llseasoncleaning.net

ksoftware.info

lientfirst.xyz

aatahmineh-inter5.rest

lsolutions.xyz

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4648-3-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/4648-7-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/4648-11-0x00000000004A0000-0x00000000004CF000-memory.dmp	formbook
behavioral2/memory/4664-18-0x0000000000F40000-0x0000000000F6F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3016 set thread context of 4648	3016	SKMBT_28324122512260.pdf.exe	83
PID 4648 set thread context of 3520	4648	svchost.exe	56
PID 4648 set thread context of 3520	4648	svchost.exe	56
PID 4664 set thread context of 3520	4664	WWAHost.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SKMBT_28324122512260.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WWAHost.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe
4664	WWAHost.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
3016	SKMBT_28324122512260.pdf.exe
3016	SKMBT_28324122512260.pdf.exe
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4648	svchost.exe
4664	WWAHost.exe
4664	WWAHost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4648	svchost.exe
Token: SeDebugPrivilege	4664	WWAHost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3016	SKMBT_28324122512260.pdf.exe
3016	SKMBT_28324122512260.pdf.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3016	SKMBT_28324122512260.pdf.exe
3016	SKMBT_28324122512260.pdf.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 4648	3016	SKMBT_28324122512260.pdf.exe	83
PID 3016 wrote to memory of 4648	3016	SKMBT_28324122512260.pdf.exe	83
PID 3016 wrote to memory of 4648	3016	SKMBT_28324122512260.pdf.exe	83
PID 3016 wrote to memory of 4648	3016	SKMBT_28324122512260.pdf.exe	83
PID 3520 wrote to memory of 4664	3520	Explorer.EXE	93
PID 3520 wrote to memory of 4664	3520	Explorer.EXE	93
PID 3520 wrote to memory of 4664	3520	Explorer.EXE	93
PID 4664 wrote to memory of 1896	4664	WWAHost.exe	98
PID 4664 wrote to memory of 1896	4664	WWAHost.exe	98
PID 4664 wrote to memory of 1896	4664	WWAHost.exe	98

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\SKMBT_28324122512260.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\SKMBT_28324122512260.pdf.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:3016
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\SKMBT_28324122512260.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4648
- C:\Windows\SysWOW64\WWAHost.exe
  "C:\Windows\SysWOW64\WWAHost.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:4664
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1896

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/3016-2-0x0000000001200000-0x0000000001600000-memory.dmp

Filesize
4.0MB

Download
memory/3520-25-0x00000000085B0000-0x00000000086A7000-memory.dmp

Filesize
988KB

Download
memory/3520-24-0x00000000085B0000-0x00000000086A7000-memory.dmp

Filesize
988KB

Download
memory/3520-22-0x00000000085B0000-0x00000000086A7000-memory.dmp

Filesize
988KB

Download
memory/3520-19-0x0000000002CC0000-0x0000000002D99000-memory.dmp

Filesize
868KB

Download
memory/3520-9-0x0000000002EE0000-0x0000000002FDB000-memory.dmp

Filesize
1004KB

Download
memory/3520-13-0x0000000002CC0000-0x0000000002D99000-memory.dmp

Filesize
868KB

Download
memory/3520-14-0x0000000002EE0000-0x0000000002FDB000-memory.dmp

Filesize
1004KB

Download
memory/4648-11-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/4648-12-0x0000000002C30000-0x0000000002C44000-memory.dmp

Filesize
80KB

Download
memory/4648-7-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/4648-8-0x0000000001330000-0x0000000001344000-memory.dmp

Filesize
80KB

Download
memory/4648-6-0x0000000000A00000-0x0000000000D4A000-memory.dmp

Filesize
3.3MB

Download
memory/4648-3-0x00000000004A0000-0x00000000004CF000-memory.dmp

Filesize
188KB

Download
memory/4664-15-0x00000000007F0000-0x00000000008CC000-memory.dmp

Filesize
880KB

Download
memory/4664-17-0x00000000007F0000-0x00000000008CC000-memory.dmp

Filesize
880KB

Download
memory/4664-18-0x0000000000F40000-0x0000000000F6F000-memory.dmp

Filesize
188KB

Download