formbook | 40cebb630f935210e93b1e5569a1181a0c19cee3c4c129550dece7add29f27b6

General

Target

Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
Size

755KB
MD5

a1a321f41094dc2e821ae3fd23c123f4
SHA1

272f153247ce26851f3300be06bcf4fa2b8e6553
SHA256

40cebb630f935210e93b1e5569a1181a0c19cee3c4c129550dece7add29f27b6
SHA512

4292318a9a85a2b9aa677eda93444b7c7819d8725f36459cf554c78b9f08e17cdebc4c4face3020bb2271273019fd3335be35d8fc7c9aecf82002cbac4accf57
SSDEEP

12288:DYAMd6OdKEari+auFvnnrcMXsnx2NVDN2P4Ypq1a3P14aePmcDomo:DM6h1OCrKx2fSbq1a3PKjbDom

Score

10^/10

formbook pz12 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

pz12

Decoy

paucanyes.com

autonwheels.com

cowboysandcaviarbar.com

fitnessengineeredworkouts.com

nuevobajonfavorito.com

dflx8.com

rothability.com

sxybet88.com

onesource.live

brenjitu1904.com

airdrop-zero1labs.com

guangdongqiangzhetc.com

apartments-for-rent-72254.bond

ombak99.lol

qqfoodsolutions.com

kyyzz.com

thepicklematch.com

ainth.com

missorris.com

gabbygomez.com

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
behavioral1/memory/2712-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2712-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2712-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2056-26-0x00000000000C0000-0x00000000000EF000-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
2324	powershell.exe

Deletes itself 1 IoCs

pid	Process
2616	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 836 set thread context of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 2712 set thread context of 1192	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	21
PID 2712 set thread context of 1192	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	21
PID 2056 set thread context of 1192	2056	help.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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2324	powershell.exe
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe
2056	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
2056	help.exe
2056	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
Token: SeDebugPrivilege	2324	powershell.exe
Token: SeDebugPrivilege	2056	help.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 2324	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	31
PID 836 wrote to memory of 2324	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	31
PID 836 wrote to memory of 2324	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	31
PID 836 wrote to memory of 2324	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	31
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 836 wrote to memory of 2712	836	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	33
PID 2712 wrote to memory of 2056	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	34
PID 2712 wrote to memory of 2056	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	34
PID 2712 wrote to memory of 2056	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	34
PID 2712 wrote to memory of 2056	2712	Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe	34
PID 2056 wrote to memory of 2616	2056	help.exe	35
PID 2056 wrote to memory of 2616	2056	help.exe	35
PID 2056 wrote to memory of 2616	2056	help.exe	35
PID 2056 wrote to memory of 2616	2056	help.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
  "C:\Users\Admin\AppData\Local\Temp\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:836
- - 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\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2324
- - C:\Users\Admin\AppData\Local\Temp\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe
    "C:\Users\Admin\AppData\Local\Temp\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.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:2712
  - - C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.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:2056
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\Tu van thanh toan dien tu Vietcombank USD 59 174 00 VCB190824.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/836-6-0x00000000004C0000-0x00000000004D0000-memory.dmp

Filesize
64KB

Download
memory/836-1-0x0000000000E30000-0x0000000000EF2000-memory.dmp

Filesize
776KB

Download
memory/836-2-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/836-3-0x00000000004B0000-0x00000000004C2000-memory.dmp

Filesize
72KB

Download
memory/836-4-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/836-5-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/836-7-0x0000000005B00000-0x0000000005B76000-memory.dmp

Filesize
472KB

Download
memory/836-0-0x00000000742DE000-0x00000000742DF000-memory.dmp

Filesize
4KB

Download
memory/836-16-0x00000000742D0000-0x00000000749BE000-memory.dmp

Filesize
6.9MB

Download
memory/1192-19-0x0000000003B80000-0x0000000003C80000-memory.dmp

Filesize
1024KB

Download
memory/1192-23-0x0000000004D00000-0x0000000004E09000-memory.dmp

Filesize
1.0MB

Download
memory/2056-26-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2056-25-0x0000000000F00000-0x0000000000F06000-memory.dmp

Filesize
24KB

Download
memory/2712-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-17-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2712-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2712-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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