formbook | 78e8787616a4d7be2eb5c127e75e3326de2c3e2dbf2a2533163f9594c0214b16

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 14:14

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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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2640-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2640-29-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1508-32-0x0000000000080000-0x00000000000AF000-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
2864	powershell.exe
2752	powershell.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 2640	2096	Payment Copy88382pdf.exe	38
PID 2640 set thread context of 1156	2640	RegSvcs.exe	20
PID 2640 set thread context of 1156	2640	RegSvcs.exe	20
PID 1508 set thread context of 1156	1508	help.exe	20

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

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
2744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
2096	Payment Copy88382pdf.exe
2752	powershell.exe
2864	powershell.exe
2096	Payment Copy88382pdf.exe
2096	Payment Copy88382pdf.exe
2096	Payment Copy88382pdf.exe
2640	RegSvcs.exe
2640	RegSvcs.exe
2640	RegSvcs.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe
1508	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2640	RegSvcs.exe
2640	RegSvcs.exe
2640	RegSvcs.exe
2640	RegSvcs.exe
1508	help.exe
1508	help.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	Payment Copy88382pdf.exe
Token: SeDebugPrivilege	2752	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	2640	RegSvcs.exe
Token: SeDebugPrivilege	1508	help.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2864	2096	Payment Copy88382pdf.exe	31
PID 2096 wrote to memory of 2864	2096	Payment Copy88382pdf.exe	31
PID 2096 wrote to memory of 2864	2096	Payment Copy88382pdf.exe	31
PID 2096 wrote to memory of 2864	2096	Payment Copy88382pdf.exe	31
PID 2096 wrote to memory of 2752	2096	Payment Copy88382pdf.exe	33
PID 2096 wrote to memory of 2752	2096	Payment Copy88382pdf.exe	33
PID 2096 wrote to memory of 2752	2096	Payment Copy88382pdf.exe	33
PID 2096 wrote to memory of 2752	2096	Payment Copy88382pdf.exe	33
PID 2096 wrote to memory of 2744	2096	Payment Copy88382pdf.exe	35
PID 2096 wrote to memory of 2744	2096	Payment Copy88382pdf.exe	35
PID 2096 wrote to memory of 2744	2096	Payment Copy88382pdf.exe	35
PID 2096 wrote to memory of 2744	2096	Payment Copy88382pdf.exe	35
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2628	2096	Payment Copy88382pdf.exe	37
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 2096 wrote to memory of 2640	2096	Payment Copy88382pdf.exe	38
PID 1156 wrote to memory of 1508	1156	Explorer.EXE	61
PID 1156 wrote to memory of 1508	1156	Explorer.EXE	61
PID 1156 wrote to memory of 1508	1156	Explorer.EXE	61
PID 1156 wrote to memory of 1508	1156	Explorer.EXE	61
PID 1508 wrote to memory of 2140	1508	help.exe	62
PID 1508 wrote to memory of 2140	1508	help.exe	62
PID 1508 wrote to memory of 2140	1508	help.exe	62
PID 1508 wrote to memory of 2140	1508	help.exe	62

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1156
- 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:2096
- - 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:2864
- - 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:2752
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CeKWKoi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE74.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2744
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:2628
- - 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:2640
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:108
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1200
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1788
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2612
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2688
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2932
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2532
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1252
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1992
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2056
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2064
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2164
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1716
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1104
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2364
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2508
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1268
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1372
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2372
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2528
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1504
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2840
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:1508
- - 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:2140

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\tmpEE74.tmp

Filesize
1KB

MD5
19a09b43dcf542a4847ad28002c94149

SHA1
c4149f35f2454086eb8663b1a48bec495c26e540

SHA256
d4ead073263ba0d64846625bd2a01628c401d006d83bea4817243b7be51d1edf

SHA512
fb665fa915c7b04095c89f27ca9f3eabdfee095c11c6aad62cd0416364d7c506b2f88c681a7014eb6c48859b2f791d28a9411adb458067fb644d2fdfc1cdd56a

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

Filesize
7KB

MD5
de419699b771dd07bd3eec6152f70801

SHA1
53820185665831be69e4a1f1a5cf80535697ac25

SHA256
ad7b4abb1b393bb2a5204b12a5fe648fd0ef2e1c10b24ed174a128afba92a63d

SHA512
450ba9774d84e45f03450dc83e7b6b609c960222faab56ef65371e89b546d50f5a2cd8c33d520ecbc57de95e75468c0f3b477bbe7df79c6dc7764ea3c20ab69e

Download Submit
memory/1156-30-0x00000000050A0000-0x00000000051B1000-memory.dmp

Filesize
1.1MB

Download
memory/1156-28-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1508-32-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1508-31-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2096-5-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2096-4-0x00000000003A0000-0x00000000003BE000-memory.dmp

Filesize
120KB

Download
memory/2096-6-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2096-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

Filesize
4KB

Download
memory/2096-1-0x0000000000CD0000-0x0000000000D82000-memory.dmp

Filesize
712KB

Download
memory/2096-2-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2096-3-0x0000000004860000-0x0000000004902000-memory.dmp

Filesize
648KB

Download
memory/2096-7-0x00000000004E0000-0x0000000000558000-memory.dmp

Filesize
480KB

Download
memory/2096-26-0x0000000074C00000-0x00000000752EE000-memory.dmp

Filesize
6.9MB

Download
memory/2640-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2640-29-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2640-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2640-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download