formbook | 5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 06:16

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General

Target

5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
Size

925KB
MD5

6e9319dca3bfbcefce52d8c1ee590b7b
SHA1

80c7c30f95a7821186e8f566c02aea4898e3d190
SHA256

5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4
SHA512

f4ae7600b94b866bea1935c0d30ee4a7338d1ba1b9b3bec68d2e9bf4afbec57534d882c8d9db03ca5362be48aab6de7009cb832e54306d669ec55884ada50991
SSDEEP

12288:Cd0NmhWSft/ywIYHeRP+cuYWqV/WNyHZGijPSJAjHFHSUw0fedLGL31d8B8dkc9V:w0YhWIBywpUH5bgijq2dPw

Score

10^/10

formbook b02a discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b02a

Decoy

nnovate.host

yrvo.shop

obify.party

55665.one

vlisazouasiul.store

arjohbs.shop

mjsccc5716.shop

nfluencer-marketing-86606.bond

atellite-internet-74549.bond

arehouse-inventory-82506.bond

kanzaturf.net

airbypatrickmcguire.net

90880a15.buzz

ancake888.info

hopcroma.store

usinessloanscanada524285.icu

mdjr.world

9kct.xyz

ombrd.finance

luratu.xyz

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2736-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2736-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3064-30-0x00000000000C0000-0x00000000000EF000-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
2424	powershell.exe
2816	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2736 set thread context of 1200	2736	RegSvcs.exe	21
PID 2736 set thread context of 1200	2736	RegSvcs.exe	21
PID 3064 set thread context of 1200	3064	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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.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
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
2736	RegSvcs.exe
2816	powershell.exe
2424	powershell.exe
2736	RegSvcs.exe
2736	RegSvcs.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe
3064	wininit.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2736	RegSvcs.exe
2736	RegSvcs.exe
2736	RegSvcs.exe
2736	RegSvcs.exe
3064	wininit.exe
3064	wininit.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
Token: SeDebugPrivilege	2816	powershell.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeDebugPrivilege	2736	RegSvcs.exe
Token: SeDebugPrivilege	3064	wininit.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2424	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	31
PID 2492 wrote to memory of 2424	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	31
PID 2492 wrote to memory of 2424	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	31
PID 2492 wrote to memory of 2424	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	31
PID 2492 wrote to memory of 2816	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	33
PID 2492 wrote to memory of 2816	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	33
PID 2492 wrote to memory of 2816	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	33
PID 2492 wrote to memory of 2816	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	33
PID 2492 wrote to memory of 2752	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	35
PID 2492 wrote to memory of 2752	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	35
PID 2492 wrote to memory of 2752	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	35
PID 2492 wrote to memory of 2752	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	35
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2492 wrote to memory of 2736	2492	5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe	37
PID 2736 wrote to memory of 3064	2736	RegSvcs.exe	38
PID 2736 wrote to memory of 3064	2736	RegSvcs.exe	38
PID 2736 wrote to memory of 3064	2736	RegSvcs.exe	38
PID 2736 wrote to memory of 3064	2736	RegSvcs.exe	38
PID 3064 wrote to memory of 1000	3064	wininit.exe	39
PID 3064 wrote to memory of 1000	3064	wininit.exe	39
PID 3064 wrote to memory of 1000	3064	wininit.exe	39
PID 3064 wrote to memory of 1000	3064	wininit.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- C:\Users\Admin\AppData\Local\Temp\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe
  "C:\Users\Admin\AppData\Local\Temp\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2492
- - 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\5a5ecb542145e7b9cc78d7f3d55a3b5d5183b8c5e7fb604c35085485127de7f4.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2424
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nXFySbbIRNPzW.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2816
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nXFySbbIRNPzW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD51A.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2752
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.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:2736
  - - C:\Windows\SysWOW64\wininit.exe
      "C:\Windows\SysWOW64\wininit.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:3064
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1000

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\tmpD51A.tmp

Filesize
1KB

MD5
f45551b2d2f485a37790a009b30a9b83

SHA1
53ebe472273c431dad7dece8b8bc6f236a3f3c08

SHA256
511c7e2380dc66af692a61c7aed86c409ec403f6d034cc8d53212736a0780e41

SHA512
8bc93a2a26e52e00260e0b2df546f67f40a46b6430abbccb67671c6dbeee114088e7be58ddcab025e1455245ec0be1cb72e0826b55da95c850c8f930461f4f10

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

Filesize
7KB

MD5
8a9dc1af9a01aafa9660cb6107637ff7

SHA1
13d9da03df73e7c49a378ee3bfbc4c7453a6c3e4

SHA256
2bd51a044cba82d5596bd32d1e2b9ce0c263f471b106ebd1a9ccb8013b6a96e9

SHA512
82e6ad06377bc9a78930ab2a254ee8d7473fef1a5e5d63e5ee239e1a3909da72c09e9504fb5aa4c1224468a3af7b1bf7cb66cab11819fbe28691878a815d9adf

Download Submit
memory/1200-31-0x0000000004D90000-0x0000000004E90000-memory.dmp

Filesize
1024KB

Download
memory/1200-28-0x0000000004440000-0x00000000044F6000-memory.dmp

Filesize
728KB

Download
memory/2492-4-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2492-25-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-6-0x00000000004C0000-0x0000000000538000-memory.dmp

Filesize
480KB

Download
memory/2492-0-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2492-3-0x0000000000560000-0x000000000057E000-memory.dmp

Filesize
120KB

Download
memory/2492-1-0x0000000001100000-0x00000000011EE000-memory.dmp

Filesize
952KB

Download
memory/2492-2-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-5-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3064-29-0x0000000000C90000-0x0000000000CAA000-memory.dmp

Filesize
104KB

Download
memory/3064-30-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download