formbook | 78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 14:15

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General

Target

Payment Copy88382pdf.exe
Size

686KB
MD5

dc33f885728b308c7159ffd95a728331
SHA1

45ee3cf5a16ed7770a9e78bc2d09294128a38e6c
SHA256

78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16
SHA512

929e020d609a8e3d065df62f978cf787a60e63629d6d28eaf287a2f1b3b1e30c4ffb67ac509d26e32623087c3a4665f46067e0c1f36423d922f5d64a49779910
SSDEEP

12288:5RYpw+u2yCIxGFvNUuqjL8nk3iS7bbRVXMGeUbE0X2tpXEe2nBeZ5O6suWb3L/KF:Q91IQNNUbonqnTX9eUA0XAUeiE2

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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/536-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1648-32-0x0000000000090000-0x00000000000BF000-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
2880	powershell.exe
2656	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 536	2760	Payment Copy88382pdf.exe	36
PID 536 set thread context of 1196	536	RegSvcs.exe	21
PID 1648 set thread context of 1196	1648	msiexec.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	Payment Copy88382pdf.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	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2760	Payment Copy88382pdf.exe
2760	Payment Copy88382pdf.exe
536	RegSvcs.exe
536	RegSvcs.exe
2656	powershell.exe
2880	powershell.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe
1648	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
536	RegSvcs.exe
536	RegSvcs.exe
536	RegSvcs.exe
1648	msiexec.exe
1648	msiexec.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	Payment Copy88382pdf.exe
Token: SeDebugPrivilege	536	RegSvcs.exe
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	2880	powershell.exe
Token: SeDebugPrivilege	1648	msiexec.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 2880	2760	Payment Copy88382pdf.exe	30
PID 2760 wrote to memory of 2880	2760	Payment Copy88382pdf.exe	30
PID 2760 wrote to memory of 2880	2760	Payment Copy88382pdf.exe	30
PID 2760 wrote to memory of 2880	2760	Payment Copy88382pdf.exe	30
PID 2760 wrote to memory of 2656	2760	Payment Copy88382pdf.exe	32
PID 2760 wrote to memory of 2656	2760	Payment Copy88382pdf.exe	32
PID 2760 wrote to memory of 2656	2760	Payment Copy88382pdf.exe	32
PID 2760 wrote to memory of 2656	2760	Payment Copy88382pdf.exe	32
PID 2760 wrote to memory of 2612	2760	Payment Copy88382pdf.exe	34
PID 2760 wrote to memory of 2612	2760	Payment Copy88382pdf.exe	34
PID 2760 wrote to memory of 2612	2760	Payment Copy88382pdf.exe	34
PID 2760 wrote to memory of 2612	2760	Payment Copy88382pdf.exe	34
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 2760 wrote to memory of 536	2760	Payment Copy88382pdf.exe	36
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1196 wrote to memory of 1648	1196	Explorer.EXE	47
PID 1648 wrote to memory of 2932	1648	msiexec.exe	48
PID 1648 wrote to memory of 2932	1648	msiexec.exe	48
PID 1648 wrote to memory of 2932	1648	msiexec.exe	48
PID 1648 wrote to memory of 2932	1648	msiexec.exe	48

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\Payment Copy88382pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Copy88382pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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\Payment Copy88382pdf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2880
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CeKWKoi.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2656
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CeKWKoi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8601.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2612
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:536
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2208
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2256
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2648
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2196
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2180
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2704
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2308
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:352
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1692
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:812
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:1648
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2932

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8601.tmp

Filesize
1KB

MD5
85dabab72edd8e512eb43df582caa2b1

SHA1
1901b72e3285aba936aceb7258f7c5eee69b9b6d

SHA256
8703064e6f7a32ef3f270691f4181c18c8e4d7d758edfadd07daf45e3c023fc4

SHA512
ebe17d2e97535baeddf159cb114854d6e9f2a5103e8eacf2ba4137d53458ad5e9878b2be0a9a668a97e3b9ec0148f328736daf5935866b8a58ec0bb92833d3ff

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

Filesize
7KB

MD5
6f468406a7443403230b8587f46ae678

SHA1
043802d233266869f5ca9e532ae2759506c10ad3

SHA256
43b38ac2410801bd1792cb4e401707238a23ce464dab80cf16690c663ac26f1c

SHA512
11557643fabaecf23698219afdee13e4084a16141e940ea5cf968b6411ccb9ea12f2fa73b8ab4130b81db5f4629ae5589132482b25fb9304e65060698190b7c8

Download Submit
memory/536-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/536-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/536-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/536-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1648-32-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1648-31-0x00000000003A0000-0x00000000003B4000-memory.dmp

Filesize
80KB

Download
memory/1648-29-0x00000000003A0000-0x00000000003B4000-memory.dmp

Filesize
80KB

Download
memory/2760-1-0x0000000000D10000-0x0000000000DC2000-memory.dmp

Filesize
712KB

Download
memory/2760-3-0x0000000004B90000-0x0000000004C32000-memory.dmp

Filesize
648KB

Download
memory/2760-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2760-7-0x0000000000340000-0x00000000003B8000-memory.dmp

Filesize
480KB

Download
memory/2760-26-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-6-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-5-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2760-4-0x0000000000630000-0x000000000064E000-memory.dmp

Filesize
120KB

Download