formbook | 1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30

General

Target

1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe
Size

653KB
MD5

4f9709aa08fb342403b4a9d952419184
SHA1

07913a57cfe7e1674525397f571ae98d3195a11c
SHA256

1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30
SHA512

cde7fe3db0ee4fd1876e3b40601e4d9c81ae4b2fa525335d183c9d0314fde6eaaa5820303d3fd2eb0a008f09511c08967fe0ba00fea83c9dee8d98d80f513fe0
SSDEEP

12288:3Zxa/zmcDXmyLO609WOgt3MbOSJ6gAFss9ewhMBdULG503vdPlLVBkR:3ZxaakZb0wr3MRJ7U9ZMBYG503DLVc

Score

10^/10

formbook v15n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

v15n

Decoy

dyahwoahjuk.store

toysstorm.com

y7rak9.com

2222233p6.shop

betbox2341.com

visualvarta.com

nijssenadventures.com

main-12.site

leng4d.net

kurainu.xyz

hatesa.xyz

culturamosaica.com

supermallify.store

gigboard.app

rxforgive.com

ameliestones.com

kapalwin.live

tier.credit

sobol-ksa.com

faredeal.online

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2656-24-0x0000000000400000-0x000000000042F000-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
2080	powershell.exe
2316	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1052 set thread context of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.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
2800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2656	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe
2080	powershell.exe
2316	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	powershell.exe
Token: SeDebugPrivilege	2316	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 2080	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	30
PID 1052 wrote to memory of 2080	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	30
PID 1052 wrote to memory of 2080	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	30
PID 1052 wrote to memory of 2080	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	30
PID 1052 wrote to memory of 2316	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	32
PID 1052 wrote to memory of 2316	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	32
PID 1052 wrote to memory of 2316	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	32
PID 1052 wrote to memory of 2316	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	32
PID 1052 wrote to memory of 2800	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	34
PID 1052 wrote to memory of 2800	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	34
PID 1052 wrote to memory of 2800	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	34
PID 1052 wrote to memory of 2800	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	34
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36
PID 1052 wrote to memory of 2656	1052	1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe	36

C:\Users\Admin\AppData\Local\Temp\1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe
"C:\Users\Admin\AppData\Local\Temp\1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052
- 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\1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dacYzRiJuWECy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2316
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dacYzRiJuWECy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2800
- C:\Users\Admin\AppData\Local\Temp\1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe
  "C:\Users\Admin\AppData\Local\Temp\1b9e77854e399411406c1f8e3fa6e0bceb4a1284c7bedeed503bcb24bdcfbe30.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDD6.tmp

Filesize
1KB

MD5
e38c1b34ae7492efe7b87e89baf69cc4

SHA1
2fbff92950a4e2eb44cbc31c95875b7646e890ad

SHA256
92290ade72979fb8d1fdf824918da456339d47e33195ac7e7280652b3d902ca2

SHA512
0d54eb26ddbb6274654edce4f1e4318581f074a792b7801bc2ad6a6a1a7e5a2c10d6b513e608dd95838ef20f0d2ca56c51e2708c02d71414dae64ee1058e15f9

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

Filesize
7KB

MD5
922dd46af91b0253c0e8467b9f3e24cc

SHA1
2c69188866739330487b0af2e83c06e3767eb784

SHA256
8574546d2a627b03b75fa3e71830c9a4e21faabf1b0bc8af063775bc7713c14b

SHA512
c8da94664154cfdad1f8d1637dcd2220375e1f7142c3470f27647eac40de59b30c76229ccb0d7e7c44e5f1c720862444303d3b2854ee99f1b01618c5d2c5264a

Download Submit
memory/1052-6-0x0000000004CF0000-0x0000000004D66000-memory.dmp

Filesize
472KB

Download
memory/1052-3-0x0000000000360000-0x0000000000378000-memory.dmp

Filesize
96KB

Download
memory/1052-4-0x0000000000380000-0x000000000038E000-memory.dmp

Filesize
56KB

Download
memory/1052-5-0x0000000000390000-0x00000000003A6000-memory.dmp

Filesize
88KB

Download
memory/1052-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/1052-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/1052-1-0x0000000001180000-0x0000000001226000-memory.dmp

Filesize
664KB

Download
memory/1052-25-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2656-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2656-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads