formbook | 87333c68bf4dcdf822c5dc527c912fdfcaf4d13bf03aa2f7d70bd98e9d76f1db

Analysis

max time kernel
148s
max time network
148s
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 11:58

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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

resource	yara_rule
behavioral2/memory/3164-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3164-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1856-72-0x0000000000E00000-0x0000000000E2F000-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
3348	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	dekont.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1096 set thread context of 3164	1096	dekont.pdf.exe	102
PID 3164 set thread context of 3504	3164	dekont.pdf.exe	56
PID 1856 set thread context of 3504	1856	cmmon32.exe	56

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	cmd.exe
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	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

pid	Process
3164	dekont.pdf.exe
3164	dekont.pdf.exe
3164	dekont.pdf.exe
3164	dekont.pdf.exe
3348	powershell.exe
3348	powershell.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe
1856	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3164	dekont.pdf.exe
3164	dekont.pdf.exe
3164	dekont.pdf.exe
1856	cmmon32.exe
1856	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3164	dekont.pdf.exe
Token: SeDebugPrivilege	3348	powershell.exe
Token: SeDebugPrivilege	1856	cmmon32.exe
Token: SeShutdownPrivilege	3504	Explorer.EXE
Token: SeCreatePagefilePrivilege	3504	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3504	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 3348	1096	dekont.pdf.exe	100
PID 1096 wrote to memory of 3348	1096	dekont.pdf.exe	100
PID 1096 wrote to memory of 3348	1096	dekont.pdf.exe	100
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 1096 wrote to memory of 3164	1096	dekont.pdf.exe	102
PID 3504 wrote to memory of 1856	3504	Explorer.EXE	103
PID 3504 wrote to memory of 1856	3504	Explorer.EXE	103
PID 3504 wrote to memory of 1856	3504	Explorer.EXE	103
PID 1856 wrote to memory of 1196	1856	cmmon32.exe	104
PID 1856 wrote to memory of 1196	1856	cmmon32.exe	104
PID 1856 wrote to memory of 1196	1856	cmmon32.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3504
- 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:1096
- - 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:3348
- - 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:3164
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:1856
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\dekont.pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1196

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_rtwhb12y.4s5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1096-9-0x0000000074630000-0x0000000074DE0000-memory.dmp

Filesize
7.7MB

Download
memory/1096-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1096-8-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1096-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp

Filesize
584KB

Download
memory/1096-4-0x0000000004C90000-0x0000000004D2C000-memory.dmp

Filesize
624KB

Download
memory/1096-5-0x0000000004C00000-0x0000000004C0A000-memory.dmp

Filesize
40KB

Download
memory/1096-6-0x0000000074630000-0x0000000074DE0000-memory.dmp

Filesize
7.7MB

Download
memory/1096-7-0x0000000004DC0000-0x0000000004DD2000-memory.dmp

Filesize
72KB

Download
memory/1096-2-0x0000000005100000-0x00000000056A4000-memory.dmp

Filesize
5.6MB

Download
memory/1096-1-0x0000000000090000-0x0000000000142000-memory.dmp

Filesize
712KB

Download
memory/1096-13-0x0000000074630000-0x0000000074DE0000-memory.dmp

Filesize
7.7MB

Download
memory/1096-10-0x00000000063A0000-0x000000000641A000-memory.dmp

Filesize
488KB

Download
memory/1856-56-0x00000000002F0000-0x00000000002FC000-memory.dmp

Filesize
48KB

Download
memory/1856-72-0x0000000000E00000-0x0000000000E2F000-memory.dmp

Filesize
188KB

Download
memory/1856-55-0x00000000002F0000-0x00000000002FC000-memory.dmp

Filesize
48KB

Download
memory/3164-15-0x0000000001210000-0x000000000155A000-memory.dmp

Filesize
3.3MB

Download
memory/3164-18-0x00000000011D0000-0x00000000011E5000-memory.dmp

Filesize
84KB

Download
memory/3164-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3164-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3348-37-0x0000000006110000-0x000000000612E000-memory.dmp

Filesize
120KB

Download
memory/3348-58-0x0000000007460000-0x000000000747A000-memory.dmp

Filesize
104KB

Download
memory/3348-25-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/3348-24-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/3348-31-0x0000000005920000-0x0000000005986000-memory.dmp

Filesize
408KB

Download
memory/3348-36-0x0000000005C50000-0x0000000005FA4000-memory.dmp

Filesize
3.3MB

Download
memory/3348-22-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-38-0x0000000006150000-0x000000000619C000-memory.dmp

Filesize
304KB

Download
memory/3348-40-0x0000000006710000-0x0000000006742000-memory.dmp

Filesize
200KB

Download
memory/3348-39-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-41-0x00000000704D0000-0x000000007051C000-memory.dmp

Filesize
304KB

Download
memory/3348-51-0x00000000066F0000-0x000000000670E000-memory.dmp

Filesize
120KB

Download
memory/3348-53-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-52-0x0000000007150000-0x00000000071F3000-memory.dmp

Filesize
652KB

Download
memory/3348-54-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-16-0x0000000004B70000-0x0000000004BA6000-memory.dmp

Filesize
216KB

Download
memory/3348-20-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/3348-23-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-57-0x0000000007AA0000-0x000000000811A000-memory.dmp

Filesize
6.5MB

Download
memory/3348-59-0x00000000074D0000-0x00000000074DA000-memory.dmp

Filesize
40KB

Download
memory/3348-60-0x00000000076E0000-0x0000000007776000-memory.dmp

Filesize
600KB

Download
memory/3348-61-0x0000000007660000-0x0000000007671000-memory.dmp

Filesize
68KB

Download
memory/3348-62-0x0000000007690000-0x000000000769E000-memory.dmp

Filesize
56KB

Download
memory/3348-64-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/3348-66-0x00000000076A0000-0x00000000076B4000-memory.dmp

Filesize
80KB

Download
memory/3348-21-0x00000000052F0000-0x0000000005918000-memory.dmp

Filesize
6.2MB

Download
memory/3348-71-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-65-0x00000000746B0000-0x0000000074E60000-memory.dmp

Filesize
7.7MB

Download
memory/3348-67-0x00000000077A0000-0x00000000077BA000-memory.dmp

Filesize
104KB

Download
memory/3348-68-0x0000000007780000-0x0000000007788000-memory.dmp

Filesize
32KB

Download
memory/3504-63-0x00000000083E0000-0x0000000008555000-memory.dmp

Filesize
1.5MB

Download
memory/3504-19-0x00000000083E0000-0x0000000008555000-memory.dmp

Filesize
1.5MB

Download
memory/3504-77-0x0000000006E80000-0x0000000006F4B000-memory.dmp

Filesize
812KB

Download