formbook | 0c75f9346023e418ff8265fb609a392086a32d894482fad2426e7993467e0eda

Analysis

max time kernel
1200s
max time network
842s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 14:52

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General

Target

malw.exe
Size

557KB
MD5

382c88984b3c6ee204de52753ef3430a
SHA1

6a3e055ed4b30137798e379408894298d6caf652
SHA256

0c75f9346023e418ff8265fb609a392086a32d894482fad2426e7993467e0eda
SHA512

e5b9658766c195274d41869253ded042cb8c8d7c2f9439b7ee3335bc049b4b1d6ef14ed86f78d5a7de67fbf2ea16d542db151924ef2c9f4293204ce9d2cde2fa
SSDEEP

12288:7bUSAWFHil5oqaWB1meO4pT7eTAqLySHqiO/B/rbKbp/zF8PnEh2vo1:7bAkCEqaW/mZkT7gAMKL/6p/GEum

Score

10^/10

formbook t18n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t18n

Decoy

tmusicoregon.net

atici.online

j7u7.xyz

iewunucierwuerwnziqi1.info

ruvabetgiris.website

acik.lat

obsk.top

sphaltpaving-ttp1-shd-us-2.shop

ispensarynearme.news

b3nd.bond

urelook.xyz

gearlpfbm.top

aconstructionjob.bond

killsnexis.info

oshon.xyz

ashabsxw.top

ussiatraiding.buzz

raipsehumus.homes

6ae23rx.forum

edar88vvip.shop

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
behavioral1/memory/2908-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2908-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2984-24-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2608	powershell.exe

Deletes itself 1 IoCs

pid	Process
2660	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 2908	1900	malw.exe	33
PID 2908 set thread context of 1176	2908	malw.exe	21
PID 2984 set thread context of 1176	2984	wininit.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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	malw.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2908	malw.exe
2908	malw.exe
2608	powershell.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe
2984	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2908	malw.exe
2908	malw.exe
2908	malw.exe
2984	wininit.exe
2984	wininit.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2908	malw.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2984	wininit.exe
Token: SeShutdownPrivilege	1176	Explorer.EXE
Token: SeShutdownPrivilege	1176	Explorer.EXE
Token: SeShutdownPrivilege	1176	Explorer.EXE
Token: SeShutdownPrivilege	1176	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2608	1900	malw.exe	31
PID 1900 wrote to memory of 2608	1900	malw.exe	31
PID 1900 wrote to memory of 2608	1900	malw.exe	31
PID 1900 wrote to memory of 2608	1900	malw.exe	31
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1900 wrote to memory of 2908	1900	malw.exe	33
PID 1176 wrote to memory of 2984	1176	Explorer.EXE	34
PID 1176 wrote to memory of 2984	1176	Explorer.EXE	34
PID 1176 wrote to memory of 2984	1176	Explorer.EXE	34
PID 1176 wrote to memory of 2984	1176	Explorer.EXE	34
PID 2984 wrote to memory of 2660	2984	wininit.exe	35
PID 2984 wrote to memory of 2660	2984	wininit.exe	35
PID 2984 wrote to memory of 2660	2984	wininit.exe	35
PID 2984 wrote to memory of 2660	2984	wininit.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Users\Admin\AppData\Local\Temp\malw.exe
  "C:\Users\Admin\AppData\Local\Temp\malw.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1900
- - 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\malw.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2608
- - C:\Users\Admin\AppData\Local\Temp\malw.exe
    "C:\Users\Admin\AppData\Local\Temp\malw.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2908
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:2984
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\malw.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/1176-20-0x0000000004C80000-0x0000000004D5B000-memory.dmp

Filesize
876KB

Download
memory/1176-26-0x0000000004C80000-0x0000000004D5B000-memory.dmp

Filesize
876KB

Download
memory/1176-25-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1900-5-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/1900-4-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/1900-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/1900-6-0x0000000004EF0000-0x0000000004F66000-memory.dmp

Filesize
472KB

Download
memory/1900-1-0x00000000009F0000-0x0000000000A82000-memory.dmp

Filesize
584KB

Download
memory/1900-2-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/1900-16-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/1900-3-0x00000000004B0000-0x00000000004C2000-memory.dmp

Filesize
72KB

Download
memory/2908-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2908-19-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/2908-17-0x0000000000A90000-0x0000000000D93000-memory.dmp

Filesize
3.0MB

Download
memory/2908-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2908-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2908-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2908-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2984-23-0x0000000000A80000-0x0000000000A9A000-memory.dmp

Filesize
104KB

Download
memory/2984-24-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download