formbook | cbeee5f0d63a9178155739c1eca36e16ceaffc7ccda4154d991f068766df52ba

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
15-08-2024 09:37

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General

Target

OVERDUESOA_pdf.exe
Size

733KB
MD5

7095e01e6bf3655a8b1d1449a91cd195
SHA1

59bcb0f7b17b4d6ccb6efd8f3a47a5bf6f1b2268
SHA256

cbeee5f0d63a9178155739c1eca36e16ceaffc7ccda4154d991f068766df52ba
SHA512

ab6444bc46a4f037ecdce3b57b9f92732ce17e4034e9616d067c6148bae34ed3bfeba4f6e2b2aee2d4391cd679a0737e4fabaf0d0c940ec0b22bad167e501a21
SSDEEP

12288:FoQyRAvxF72mzaRZJvfUAp2F0Fthci5UoiKqBLXpOi/8UOkWTSWK:sSxF7HzaRFpA0X3viKk5JsfSz

Score

10^/10

formbook bi05 discovery execution 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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2968-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2272-30-0x00000000000D0000-0x00000000000FF000-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
2752	powershell.exe
2992	powershell.exe

Deletes itself 1 IoCs

pid	Process
2020	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2968 set thread context of 1232	2968	OVERDUESOA_pdf.exe	21
PID 2272 set thread context of 1232	2272	cmstp.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	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OVERDUESOA_pdf.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	powershell.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
2692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2672	OVERDUESOA_pdf.exe
2672	OVERDUESOA_pdf.exe
2968	OVERDUESOA_pdf.exe
2992	powershell.exe
2752	powershell.exe
2968	OVERDUESOA_pdf.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe
2272	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2968	OVERDUESOA_pdf.exe
2968	OVERDUESOA_pdf.exe
2968	OVERDUESOA_pdf.exe
2272	cmstp.exe
2272	cmstp.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	OVERDUESOA_pdf.exe
Token: SeDebugPrivilege	2992	powershell.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2968	OVERDUESOA_pdf.exe
Token: SeDebugPrivilege	2272	cmstp.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2752	2672	OVERDUESOA_pdf.exe	31
PID 2672 wrote to memory of 2752	2672	OVERDUESOA_pdf.exe	31
PID 2672 wrote to memory of 2752	2672	OVERDUESOA_pdf.exe	31
PID 2672 wrote to memory of 2752	2672	OVERDUESOA_pdf.exe	31
PID 2672 wrote to memory of 2992	2672	OVERDUESOA_pdf.exe	33
PID 2672 wrote to memory of 2992	2672	OVERDUESOA_pdf.exe	33
PID 2672 wrote to memory of 2992	2672	OVERDUESOA_pdf.exe	33
PID 2672 wrote to memory of 2992	2672	OVERDUESOA_pdf.exe	33
PID 2672 wrote to memory of 2692	2672	OVERDUESOA_pdf.exe	35
PID 2672 wrote to memory of 2692	2672	OVERDUESOA_pdf.exe	35
PID 2672 wrote to memory of 2692	2672	OVERDUESOA_pdf.exe	35
PID 2672 wrote to memory of 2692	2672	OVERDUESOA_pdf.exe	35
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 2672 wrote to memory of 2968	2672	OVERDUESOA_pdf.exe	37
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 1232 wrote to memory of 2272	1232	Explorer.EXE	38
PID 2272 wrote to memory of 2020	2272	cmstp.exe	39
PID 2272 wrote to memory of 2020	2272	cmstp.exe	39
PID 2272 wrote to memory of 2020	2272	cmstp.exe	39
PID 2272 wrote to memory of 2020	2272	cmstp.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\OVERDUESOA_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\OVERDUESOA_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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\OVERDUESOA_pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ajZqJStNo.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2992
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ajZqJStNo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp189F.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2692
- - C:\Users\Admin\AppData\Local\Temp\OVERDUESOA_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\OVERDUESOA_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2968
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2272
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\OVERDUESOA_pdf.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2020

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\tmp189F.tmp

Filesize
1KB

MD5
925be8a21c6bc9e870949270524173eb

SHA1
92bb3a2ada197642ee613fddd4473b67377996a8

SHA256
2a49c12404be57b194adba3ee4545d2dcc826b016ae24fe0bbd3cbd5d2c6b084

SHA512
a0dbc0df99fda3f792399295954143068ebcc85af52334c70f06cd6205f473b67f78851c938b8700f417fc34b2e518a8304a179f428d66a5a14d84425548650c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
6afb5a689a283106f64b547fb9c312e9

SHA1
b278df345f44c316719f24a36db1bf7778fed330

SHA256
2d7df026b0dce4cbb0644c16dd9de5f32182d2d30eeb8691a12c47d06fc8cd28

SHA512
ab9b2912b68ec877821e3824e284580487a04f8f7a670e72b75af751e11b1bfe7a3139a3e6f09edd0a05fd9beb824a9434050c4435cae83d4a6b16ddce985853

Download Submit
memory/1232-28-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2272-30-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2272-29-0x0000000000F40000-0x0000000000F58000-memory.dmp

Filesize
96KB

Download
memory/2672-4-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2672-6-0x0000000000510000-0x0000000000526000-memory.dmp

Filesize
88KB

Download
memory/2672-7-0x0000000004D70000-0x0000000004DE6000-memory.dmp

Filesize
472KB

Download
memory/2672-5-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2672-3-0x00000000009E0000-0x00000000009FE000-memory.dmp

Filesize
120KB

Download
memory/2672-26-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-1-0x00000000013C0000-0x000000000147C000-memory.dmp

Filesize
752KB

Download
memory/2968-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2968-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2968-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download