formbook | 741addd2850aa3852e18c3571cb3bbbe198535acbe9ee9a03a6bbc2848e1e924

General

Target

SWIFT pdf.exe
Size

687KB
MD5

2c108e76865f4f65725c9f3410c87cd0
SHA1

0c3776f261d22cdb975e3faf7b2070b0febb3030
SHA256

124a32f23ee38371976744f5787e82d923cb0d2a366d75d6ca74a9a774a74a23
SHA512

7c3c1ce1321f0672b6f59b43f670a479506353b2070b207ead10338d65c21fd9b05ab862904c42764d796208527c7c42576d370ff3e47e82b42687afed8ba298
SSDEEP

12288:/Y2qghb7wmWrBpoMwnwVrG9R6hUBB3PaRHlOGiI818efoXFYiqp:w2dbK3xwnSrZOa2Gi3HoXy

Score

10^/10

formbook o10c discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o10c

Decoy

regnancy-67873.bond

oppyworld.fun

oomoo.store

illyjolly.online

-avi.art

unisitri.net

unaid-jamshed.shop

ookcovers.xyz

estrated.xyz

rpa.club

4rcraft.online

litz.baby

lysiannails.art

commerce-69321.bond

rokidu.info

havuonvanthanh.store

hiteelephant.online

ghkp.shop

uabf.info

ynthesizerwf.store

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/3052-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3052-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2136-26-0x0000000000080000-0x00000000000AF000-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
2968	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 3052	1704	SWIFT pdf.exe	35
PID 3052 set thread context of 1244	3052	RegSvcs.exe	21
PID 3052 set thread context of 1244	3052	RegSvcs.exe	21
PID 2136 set thread context of 1244	2136	control.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	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SWIFT 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	RegSvcs.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
3044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
1704	SWIFT pdf.exe
3052	RegSvcs.exe
3052	RegSvcs.exe
1704	SWIFT pdf.exe
2968	powershell.exe
3052	RegSvcs.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe
2136	control.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3052	RegSvcs.exe
3052	RegSvcs.exe
3052	RegSvcs.exe
3052	RegSvcs.exe
2136	control.exe
2136	control.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	SWIFT pdf.exe
Token: SeDebugPrivilege	3052	RegSvcs.exe
Token: SeDebugPrivilege	2968	powershell.exe
Token: SeDebugPrivilege	2136	control.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2968	1704	SWIFT pdf.exe	31
PID 1704 wrote to memory of 2968	1704	SWIFT pdf.exe	31
PID 1704 wrote to memory of 2968	1704	SWIFT pdf.exe	31
PID 1704 wrote to memory of 2968	1704	SWIFT pdf.exe	31
PID 1704 wrote to memory of 3044	1704	SWIFT pdf.exe	32
PID 1704 wrote to memory of 3044	1704	SWIFT pdf.exe	32
PID 1704 wrote to memory of 3044	1704	SWIFT pdf.exe	32
PID 1704 wrote to memory of 3044	1704	SWIFT pdf.exe	32
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 1704 wrote to memory of 3052	1704	SWIFT pdf.exe	35
PID 3052 wrote to memory of 2136	3052	RegSvcs.exe	36
PID 3052 wrote to memory of 2136	3052	RegSvcs.exe	36
PID 3052 wrote to memory of 2136	3052	RegSvcs.exe	36
PID 3052 wrote to memory of 2136	3052	RegSvcs.exe	36
PID 2136 wrote to memory of 2492	2136	control.exe	37
PID 2136 wrote to memory of 2492	2136	control.exe	37
PID 2136 wrote to memory of 2492	2136	control.exe	37
PID 2136 wrote to memory of 2492	2136	control.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1244
- C:\Users\Admin\AppData\Local\Temp\SWIFT pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\SWIFT 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:1704
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JnVKXZkOEdAX.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2968
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JnVKXZkOEdAX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE198.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3044
- - 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:3052
  - - C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.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:2136
    - - 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:2492

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\tmpE198.tmp

Filesize
1KB

MD5
3aba3da19539b2c75ae3d2cd9c82c0de

SHA1
84ea4341182307244e17512cb06fad21d633994a

SHA256
882c93594435998b9389ba7a9dfc7893a7ed97d9c7f08a23776c8c3d3c0c014b

SHA512
d0ab9be83a1803dee1f85cc71c1e1c491e172f84cfc3f5db888c0a7e5d14c5fdb6ddb0c8856bfdf7d3a9b8545a8823063a6e215e9596bed7eef5378a0274e7da

Download Submit
memory/1244-27-0x0000000005210000-0x00000000052F2000-memory.dmp

Filesize
904KB

Download
memory/1704-4-0x0000000000480000-0x000000000049E000-memory.dmp

Filesize
120KB

Download
memory/1704-22-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1704-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/1704-5-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/1704-6-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1704-7-0x0000000000340000-0x00000000003B8000-memory.dmp

Filesize
480KB

Download
memory/1704-2-0x0000000074A80000-0x000000007516E000-memory.dmp

Filesize
6.9MB

Download
memory/1704-3-0x0000000000E00000-0x0000000000EA2000-memory.dmp

Filesize
648KB

Download
memory/1704-1-0x0000000001300000-0x00000000013B2000-memory.dmp

Filesize
712KB

Download
memory/2136-26-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2136-25-0x0000000000FB0000-0x0000000000FCF000-memory.dmp

Filesize
124KB

Download
memory/3052-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3052-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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