formbook | d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-11-2024 12:35

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General

Target

dekont.pdf.exe
Size

689KB
MD5

e5030819a8f2a25db1d44af66e00f397
SHA1

af2a32d408423b80f5bc659f708ff373947f633c
SHA256

d6cb94e803a570db4987655ae100b9dcca4ca11d45c7a0b9ab004f494855b1fb
SHA512

f7694edf91dbad898f73338eb9ce1166e3fec240f0bd700d97ad8cc9455c15805e36d73d607976185fa8559b5b158490fc82fd6fbd73cdf4ecccc5f80e9e2138
SSDEEP

12288:1bJbQWSL/h6HWSpws2t0dAWT9ymEtboOCJVMH:dJbQxLQHWSph2t0OWTgmENoOCJV

Score

10^/10

formbook m17o discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m17o

Decoy

kzqh72.top

arket-obybqq.xyz

afechoice.click

ote-knplpa.xyz

aqgpie.xyz

orker-ornp.xyz

he-beds321.today

ut-nlvv.xyz

31231827.xyz

milymariephotography.net

wquqo.click

veu-where.xyz

mjcpo-pick.xyz

yself-lpnbdl.xyz

austoowagosha.net

ive-wgag.xyz

lay-drift-palace.xyz

old-vubgv.xyz

ideo-shooting-courses.today

ntendsisaiasjazmin.shop

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

Processes:

resource	yara_rule
behavioral2/memory/4348-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4348-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2652-72-0x0000000000900000-0x000000000092F000-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

Processes:

powershell.exe

pid process

4272 powershell.exe

pid	process
4272	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

Processes:

dekont.pdf.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	dekont.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dekont.pdf.exedekont.pdf.execmd.exe

description	pid	process	target process
PID 2800 set thread context of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 4348 set thread context of 3472	4348	dekont.pdf.exe	Explorer.EXE
PID 2652 set thread context of 3472	2652	cmd.exe	Explorer.EXE

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

Processes:

dekont.pdf.exepowershell.execmd.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dekont.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

Processes:

dekont.pdf.exepowershell.execmd.exe

pid	process
4348	dekont.pdf.exe
4348	dekont.pdf.exe
4348	dekont.pdf.exe
4348	dekont.pdf.exe
4272	powershell.exe
4272	powershell.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe
2652	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

dekont.pdf.execmd.exe

pid process

4348 dekont.pdf.exe
4348 dekont.pdf.exe
4348 dekont.pdf.exe
2652 cmd.exe
2652 cmd.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

dekont.pdf.exepowershell.execmd.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4348	dekont.pdf.exe
Token: SeDebugPrivilege	4272	powershell.exe
Token: SeDebugPrivilege	2652	cmd.exe
Token: SeShutdownPrivilege	3472	Explorer.EXE
Token: SeCreatePagefilePrivilege	3472	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3472 Explorer.EXE

pid	process
3472	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

dekont.pdf.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 2800 wrote to memory of 4272	2800	dekont.pdf.exe	powershell.exe
PID 2800 wrote to memory of 4272	2800	dekont.pdf.exe	powershell.exe
PID 2800 wrote to memory of 4272	2800	dekont.pdf.exe	powershell.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 2800 wrote to memory of 4348	2800	dekont.pdf.exe	dekont.pdf.exe
PID 3472 wrote to memory of 2652	3472	Explorer.EXE	cmd.exe
PID 3472 wrote to memory of 2652	3472	Explorer.EXE	cmd.exe
PID 3472 wrote to memory of 2652	3472	Explorer.EXE	cmd.exe
PID 2652 wrote to memory of 916	2652	cmd.exe	cmd.exe
PID 2652 wrote to memory of 916	2652	cmd.exe	cmd.exe
PID 2652 wrote to memory of 916	2652	cmd.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2800
- - 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\dekont.pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4272
- - C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4348
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - 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:2652
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:916

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_2wij31tx.cah.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2652-54-0x0000000000060000-0x00000000000BA000-memory.dmp

Filesize
360KB

Download
memory/2652-56-0x0000000000060000-0x00000000000BA000-memory.dmp

Filesize
360KB

Download
memory/2652-72-0x0000000000900000-0x000000000092F000-memory.dmp

Filesize
188KB

Download
memory/2800-8-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/2800-13-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/2800-6-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/2800-7-0x0000000005BD0000-0x0000000005BE2000-memory.dmp

Filesize
72KB

Download
memory/2800-4-0x0000000005920000-0x00000000059BC000-memory.dmp

Filesize
624KB

Download
memory/2800-9-0x0000000074610000-0x0000000074DC0000-memory.dmp

Filesize
7.7MB

Download
memory/2800-10-0x0000000006DF0000-0x0000000006E6A000-memory.dmp

Filesize
488KB

Download
memory/2800-5-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/2800-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/2800-1-0x0000000000DA0000-0x0000000000E52000-memory.dmp

Filesize
712KB

Download
memory/2800-3-0x0000000005880000-0x0000000005912000-memory.dmp

Filesize
584KB

Download
memory/2800-2-0x0000000005D90000-0x0000000006334000-memory.dmp

Filesize
5.6MB

Download
memory/3472-64-0x0000000008150000-0x000000000825C000-memory.dmp

Filesize
1.0MB

Download
memory/3472-77-0x0000000002E70000-0x0000000002F68000-memory.dmp

Filesize
992KB

Download
memory/3472-19-0x0000000008150000-0x000000000825C000-memory.dmp

Filesize
1.0MB

Download
memory/4272-37-0x0000000006300000-0x000000000631E000-memory.dmp

Filesize
120KB

Download
memory/4272-58-0x0000000007620000-0x000000000763A000-memory.dmp

Filesize
104KB

Download
memory/4272-24-0x0000000005240000-0x0000000005262000-memory.dmp

Filesize
136KB

Download
memory/4272-25-0x0000000005BB0000-0x0000000005C16000-memory.dmp

Filesize
408KB

Download
memory/4272-26-0x0000000005CD0000-0x0000000005D36000-memory.dmp

Filesize
408KB

Download
memory/4272-15-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/4272-32-0x0000000005D40000-0x0000000006094000-memory.dmp

Filesize
3.3MB

Download
memory/4272-21-0x0000000004D60000-0x0000000004D96000-memory.dmp

Filesize
216KB

Download
memory/4272-38-0x0000000006390000-0x00000000063DC000-memory.dmp

Filesize
304KB

Download
memory/4272-39-0x000000007EE10000-0x000000007EE20000-memory.dmp

Filesize
64KB

Download
memory/4272-40-0x0000000006900000-0x0000000006932000-memory.dmp

Filesize
200KB

Download
memory/4272-41-0x00000000704B0000-0x00000000704FC000-memory.dmp

Filesize
304KB

Download
memory/4272-52-0x0000000004D50000-0x0000000004D60000-memory.dmp

Filesize
64KB

Download
memory/4272-51-0x00000000068C0000-0x00000000068DE000-memory.dmp

Filesize
120KB

Download
memory/4272-53-0x0000000007500000-0x00000000075A3000-memory.dmp

Filesize
652KB

Download
memory/4272-17-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4272-23-0x00000000053D0000-0x00000000059F8000-memory.dmp

Filesize
6.2MB

Download
memory/4272-71-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4272-57-0x0000000007C60000-0x00000000082DA000-memory.dmp

Filesize
6.5MB

Download
memory/4272-59-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/4272-60-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4272-61-0x0000000007690000-0x000000000769A000-memory.dmp

Filesize
40KB

Download
memory/4272-62-0x00000000078C0000-0x0000000007956000-memory.dmp

Filesize
600KB

Download
memory/4272-63-0x0000000007840000-0x0000000007851000-memory.dmp

Filesize
68KB

Download
memory/4272-22-0x0000000004D50000-0x0000000004D60000-memory.dmp

Filesize
64KB

Download
memory/4272-65-0x0000000007870000-0x000000000787E000-memory.dmp

Filesize
56KB

Download
memory/4272-66-0x0000000007880000-0x0000000007894000-memory.dmp

Filesize
80KB

Download
memory/4272-67-0x0000000007980000-0x000000000799A000-memory.dmp

Filesize
104KB

Download
memory/4272-68-0x0000000007960000-0x0000000007968000-memory.dmp

Filesize
32KB

Download
memory/4348-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4348-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4348-14-0x00000000018A0000-0x0000000001BEA000-memory.dmp

Filesize
3.3MB

Download
memory/4348-18-0x00000000013A0000-0x00000000013B5000-memory.dmp

Filesize
84KB

Download