formbook | 5789d779f7aff954b10c95ab92c85c787c25f4b348f43db969b70c5329e74b93

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 15:23

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General

Target

5.exe
Size

584KB
MD5

a23f608230a404028b541bcfce9a6704
SHA1

ba91b94100ec0b7350e8cbfe42879fa8032eca7b
SHA256

5789d779f7aff954b10c95ab92c85c787c25f4b348f43db969b70c5329e74b93
SHA512

866fbc614293427b006bad91d69d45e6c65e6693713e55ecec7fd35253b56e709a129fec97ab71750f2ffaa64b98c28984c2ebaa5b659c5d398a39d91f1b1ff3
SSDEEP

12288:08XO0aNADvB4s44IwaA7jt2wFHrItx6AD0OaaMLi27IKhgIm3YMnkR:0LyBDqYtnFHcl4OvMwdNYMy

Score

10^/10

formbook c24t discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4768-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4768-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4768-68-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4316-76-0x0000000001220000-0x000000000124F000-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
2328	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	5.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4604 set thread context of 4768	4604	5.exe	91
PID 4768 set thread context of 3436	4768	5.exe	56
PID 4768 set thread context of 3436	4768	5.exe	56
PID 4316 set thread context of 3436	4316	msiexec.exe	56

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 5 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	5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
4604	5.exe
4604	5.exe
4768	5.exe
4768	5.exe
4768	5.exe
4768	5.exe
2328	powershell.exe
2328	powershell.exe
4768	5.exe
4768	5.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe
4316	msiexec.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4768	5.exe
4768	5.exe
4768	5.exe
4768	5.exe
4316	msiexec.exe
4316	msiexec.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	5.exe
Token: SeDebugPrivilege	4768	5.exe
Token: SeDebugPrivilege	2328	powershell.exe
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeDebugPrivilege	4316	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 2328	4604	5.exe	89
PID 4604 wrote to memory of 2328	4604	5.exe	89
PID 4604 wrote to memory of 2328	4604	5.exe	89
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4604 wrote to memory of 4768	4604	5.exe	91
PID 4768 wrote to memory of 4316	4768	5.exe	106
PID 4768 wrote to memory of 4316	4768	5.exe	106
PID 4768 wrote to memory of 4316	4768	5.exe	106
PID 4316 wrote to memory of 1236	4316	msiexec.exe	107
PID 4316 wrote to memory of 1236	4316	msiexec.exe	107
PID 4316 wrote to memory of 1236	4316	msiexec.exe	107

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3436
- C:\Users\Admin\AppData\Local\Temp\5.exe
  "C:\Users\Admin\AppData\Local\Temp\5.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4604
- - 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\5.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2328
- - C:\Users\Admin\AppData\Local\Temp\5.exe
    "C:\Users\Admin\AppData\Local\Temp\5.exe"
    3⤵
    - 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:4768
  - - C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      4⤵
      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:4316
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\5.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1236
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4200
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3144
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3504
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2948
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4268
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3448
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4936
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4764
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4800
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4900
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4152
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1804

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

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dsdsx3it.2p1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2328-38-0x0000000005B90000-0x0000000005BAE000-memory.dmp

Filesize
120KB

Download
memory/2328-60-0x00000000070E0000-0x00000000070EE000-memory.dmp

Filesize
56KB

Download
memory/2328-19-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2328-14-0x00000000021F0000-0x0000000002226000-memory.dmp

Filesize
216KB

Download
memory/2328-66-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2328-63-0x00000000071D0000-0x00000000071D8000-memory.dmp

Filesize
32KB

Download
memory/2328-62-0x00000000071F0000-0x000000000720A000-memory.dmp

Filesize
104KB

Download
memory/2328-61-0x00000000070F0000-0x0000000007104000-memory.dmp

Filesize
80KB

Download
memory/2328-16-0x0000000004D20000-0x0000000005348000-memory.dmp

Filesize
6.2MB

Download
memory/2328-59-0x00000000070B0000-0x00000000070C1000-memory.dmp

Filesize
68KB

Download
memory/2328-58-0x0000000007130000-0x00000000071C6000-memory.dmp

Filesize
600KB

Download
memory/2328-39-0x0000000005C50000-0x0000000005C9C000-memory.dmp

Filesize
304KB

Download
memory/2328-56-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

Filesize
104KB

Download
memory/2328-55-0x0000000007500000-0x0000000007B7A000-memory.dmp

Filesize
6.5MB

Download
memory/2328-54-0x0000000006B80000-0x0000000006C23000-memory.dmp

Filesize
652KB

Download
memory/2328-53-0x0000000006140000-0x000000000615E000-memory.dmp

Filesize
120KB

Download
memory/2328-52-0x00000000046E0000-0x00000000046F0000-memory.dmp

Filesize
64KB

Download
memory/2328-42-0x0000000070E30000-0x0000000070E7C000-memory.dmp

Filesize
304KB

Download
memory/2328-41-0x0000000006160000-0x0000000006192000-memory.dmp

Filesize
200KB

Download
memory/2328-25-0x0000000004AC0000-0x0000000004AE2000-memory.dmp

Filesize
136KB

Download
memory/2328-27-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/2328-26-0x0000000004BE0000-0x0000000004C46000-memory.dmp

Filesize
408KB

Download
memory/2328-20-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2328-40-0x000000007FD50000-0x000000007FD60000-memory.dmp

Filesize
64KB

Download
memory/2328-33-0x00000000054C0000-0x0000000005814000-memory.dmp

Filesize
3.3MB

Download
memory/2328-57-0x0000000006F30000-0x0000000006F3A000-memory.dmp

Filesize
40KB

Download
memory/2328-15-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/3436-70-0x0000000002990000-0x0000000002A49000-memory.dmp

Filesize
740KB

Download
memory/3436-80-0x0000000002CF0000-0x0000000002DC7000-memory.dmp

Filesize
860KB

Download
memory/3436-77-0x0000000008080000-0x0000000008208000-memory.dmp

Filesize
1.5MB

Download
memory/3436-24-0x0000000002990000-0x0000000002A49000-memory.dmp

Filesize
740KB

Download
memory/3436-71-0x0000000008080000-0x0000000008208000-memory.dmp

Filesize
1.5MB

Download
memory/4316-73-0x0000000000BB0000-0x0000000000BC2000-memory.dmp

Filesize
72KB

Download
memory/4316-75-0x0000000000BB0000-0x0000000000BC2000-memory.dmp

Filesize
72KB

Download
memory/4316-72-0x0000000000BB0000-0x0000000000BC2000-memory.dmp

Filesize
72KB

Download
memory/4316-76-0x0000000001220000-0x000000000124F000-memory.dmp

Filesize
188KB

Download
memory/4604-10-0x0000000006780000-0x00000000067F6000-memory.dmp

Filesize
472KB

Download
memory/4604-11-0x0000000008E10000-0x0000000008EAC000-memory.dmp

Filesize
624KB

Download
memory/4604-6-0x0000000005430000-0x00000000054BC000-memory.dmp

Filesize
560KB

Download
memory/4604-5-0x0000000004E00000-0x0000000004E0A000-memory.dmp

Filesize
40KB

Download
memory/4604-4-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4604-2-0x00000000054C0000-0x0000000005A64000-memory.dmp

Filesize
5.6MB

Download
memory/4604-7-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

Filesize
64KB

Download
memory/4604-1-0x00000000004B0000-0x0000000000544000-memory.dmp

Filesize
592KB

Download
memory/4604-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4604-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

Filesize
584KB

Download
memory/4604-18-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4604-8-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4604-9-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4768-23-0x0000000001170000-0x0000000001184000-memory.dmp

Filesize
80KB

Download
memory/4768-69-0x00000000013D0000-0x00000000013E4000-memory.dmp

Filesize
80KB

Download
memory/4768-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4768-68-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4768-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4768-21-0x0000000001450000-0x000000000179A000-memory.dmp

Filesize
3.3MB

Download