formbook | e01ecfb4715d951f1f9a63a88cbecfee8690df2ef98491b76a795e602796c230

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
15/04/2026, 07:58

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General

Target
payment 14.04.2026.js
Size 2.0MB
Sample260415-jtw3tscs6x
SHA256 e01ecfb4715d951f1f9a63a88cbecfee8690df2ef98491b76a795e602796c230
MD5 031b4e2e26a3ac8a616084d279cb23a1
SHA1 a90feb3182a26f726cb3a90fc41e9aa4d0f4f916
SHA512 1d9f3a01e66d9d7e37e6d39d41f592e2171a4097aeacc8ac0fafc8ba19a24f3c6c112406db821d903b289af728baf58029d4c2c744563034b0322c06b93ccaa0
SSDEEP 24576:v0oKyngVx6qyxdqCRSeofWWiTAfLvA+nQsJX54m1fzHjBXf+pH7W9pnCpO7+4YG4:W6VceofWRW3eKP9iopCk+pGk/
TLSH
T14695F2118AC43FB8CFEC161980FE250EA3B04A8E541A758AEF73BD5AEFB7644511719C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution formbook rat spyware stealer trojan

Malware Config

Signatures

Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 5 IoCs

rat

resource	yara_rule
behavioral2/memory/4516-15-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/4516-19-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/4516-32-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/4464-34-0x0000000000F10000-0x0000000000F53000-memory.dmp	family_formbook
behavioral2/memory/4464-43-0x0000000000F10000-0x0000000000F53000-memory.dmp	family_formbook

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	4864	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4328	powershell.exe

ConfuserEx .NET packer 2 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/4328-12-0x0000010543070000-0x0000010543082000-memory.dmp	ConfuserEx
behavioral2/memory/4328-49-0x0000010543130000-0x0000010543142000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 11 IoCs

description	pid	Process	procid_target
PID 4328 set thread context of 4516	4328	powershell.exe	86
PID 4516 set thread context of 4864	4516	aspnet_compiler.exe	78
PID 4516 set thread context of 4464	4516	aspnet_compiler.exe	87
PID 4328 set thread context of 3064	4328	powershell.exe	88
PID 4464 set thread context of 4864	4464	proquota.exe	78
PID 4328 set thread context of 5972	4328	powershell.exe	89
PID 4328 set thread context of 1384	4328	powershell.exe	91
PID 4328 set thread context of 5224	4328	powershell.exe	92
PID 4328 set thread context of 1276	4328	powershell.exe	93
PID 4328 set thread context of 1748	4328	powershell.exe	94
PID 4328 set thread context of 1804	4328	powershell.exe	99

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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 1 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	proquota.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
128	taskkill.exe

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4516	aspnet_compiler.exe
4516	aspnet_compiler.exe
4516	aspnet_compiler.exe
4516	aspnet_compiler.exe
4328	powershell.exe
4464	proquota.exe
4464	proquota.exe
4464	proquota.exe
4464	proquota.exe
4328	powershell.exe
3064	aspnet_compiler.exe
4328	powershell.exe
5972	aspnet_compiler.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
1384	aspnet_compiler.exe
4328	powershell.exe
5224	aspnet_compiler.exe
4328	powershell.exe
1276	aspnet_compiler.exe
4328	powershell.exe
1748	aspnet_compiler.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
4328	powershell.exe
1804	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4516	aspnet_compiler.exe
4864	wscript.exe
4864	wscript.exe
4464	proquota.exe
4464	proquota.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4328	powershell.exe
Token: SeDebugPrivilege	128	taskkill.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 4328	4864	wscript.exe	79
PID 4328 wrote to memory of 2532	4328	powershell.exe	81
PID 4328 wrote to memory of 624	4328	powershell.exe	82
PID 4328 wrote to memory of 3928	4328	powershell.exe	83
PID 4328 wrote to memory of 5952	4328	powershell.exe	84
PID 4328 wrote to memory of 4204	4328	powershell.exe	85
PID 4328 wrote to memory of 4516	4328	powershell.exe	86
PID 4328 wrote to memory of 4516	4328	powershell.exe	86
PID 4328 wrote to memory of 4516	4328	powershell.exe	86
PID 4864 wrote to memory of 4464	4864	wscript.exe	87
PID 4328 wrote to memory of 3064	4328	powershell.exe	88
PID 4328 wrote to memory of 3064	4328	powershell.exe	88
PID 4328 wrote to memory of 3064	4328	powershell.exe	88
PID 4328 wrote to memory of 5972	4328	powershell.exe	89
PID 4328 wrote to memory of 5972	4328	powershell.exe	89
PID 4328 wrote to memory of 5972	4328	powershell.exe	89
PID 4328 wrote to memory of 1580	4328	powershell.exe	90
PID 4328 wrote to memory of 1384	4328	powershell.exe	91
PID 4328 wrote to memory of 1384	4328	powershell.exe	91
PID 4328 wrote to memory of 1384	4328	powershell.exe	91
PID 4328 wrote to memory of 5224	4328	powershell.exe	92
PID 4328 wrote to memory of 5224	4328	powershell.exe	92
PID 4328 wrote to memory of 5224	4328	powershell.exe	92
PID 4328 wrote to memory of 1276	4328	powershell.exe	93
PID 4328 wrote to memory of 1276	4328	powershell.exe	93
PID 4328 wrote to memory of 1276	4328	powershell.exe	93
PID 4328 wrote to memory of 1748	4328	powershell.exe	94
PID 4328 wrote to memory of 1748	4328	powershell.exe	94
PID 4328 wrote to memory of 1748	4328	powershell.exe	94
PID 4328 wrote to memory of 2208	4328	powershell.exe	95
PID 4328 wrote to memory of 820	4328	powershell.exe	96
PID 4328 wrote to memory of 5444	4328	powershell.exe	97
PID 4328 wrote to memory of 1704	4328	powershell.exe	98
PID 4328 wrote to memory of 1804	4328	powershell.exe	99
PID 4328 wrote to memory of 1804	4328	powershell.exe	99
PID 4328 wrote to memory of 1804	4328	powershell.exe	99
PID 4864 wrote to memory of 128	4864	wscript.exe	101

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\payment 14.04.2026.js"
1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_Hsb2hnm4suoF_1776239894900.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4328
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2532
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:624
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3928
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5952
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4204
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:4516
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3064
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:5972
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1580
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1384
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:5224
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1276
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2208
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:820
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5444
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1704
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1804
- C:\Windows\SysWOW64\proquota.exe
  "C:\Windows\SysWOW64\proquota.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4464
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:128

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

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

ps_Hsb2hnm4suoF_1776239894900.ps1

Path C:\Temp\ps_Hsb2hnm4suoF_1776239894900.ps1
Size 1.4MB
SHA256 9032b41fce7f8f4b4213d6123990f5bf9a221356259b3521f2112135ea67186e
MD5 76f0f5fc0c03500e9fe282ed7cf2caee
SHA1 fddfca03775d16b6f8f80942d5223b6076c8c6b0
SHA512 b5b5d99d2f97f571e9fb608eb7ad81d6ce7dd7214dfb40753d7cc1b5701379747b78291e02f613e0218cfa9522a5f3586ee5a49c7e1e7434ca80fafd1396a2f0
SSDEEP 24576:5dzkZD7Fo/m1ZKdPjheE4EtOBWoYtdbYjZblebDh4lPRfVh7eS6vvqQxz5cd9wo:HkZDBoxdsE4EMgTiYudWz56wo
TLSH
T1356533643E79B8F80E8C833A26BEDFBC0BF12E950008E4D7B57618921D5BB166543D6D
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_hrmdw1rb.uts.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hrmdw1rb.uts.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/4328-12-0x0000010543070000-0x0000010543082000-memory.dmp

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memory/4328-8-0x0000010542DE0000-0x0000010542E02000-memory.dmp

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memory/4328-10-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-1-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-20-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-13-0x0000010543080000-0x0000010543086000-memory.dmp

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memory/4328-49-0x0000010543130000-0x0000010543142000-memory.dmp

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memory/4328-17-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-16-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-2-0x0000010542D10000-0x0000010542D20000-memory.dmp

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memory/4328-27-0x0000010542D90000-0x0000010542DA2000-memory.dmp

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memory/4328-26-0x000001052A680000-0x000001052A68C000-memory.dmp

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memory/4464-30-0x0000000000F10000-0x0000000000F53000-memory.dmp

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memory/4464-28-0x0000000000F10000-0x0000000000F53000-memory.dmp

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memory/4464-43-0x0000000000F10000-0x0000000000F53000-memory.dmp

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memory/4464-34-0x0000000000F10000-0x0000000000F53000-memory.dmp

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memory/4516-29-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4516-22-0x0000000001150000-0x0000000001172000-memory.dmp

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memory/4516-19-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4516-18-0x0000000001180000-0x00000000014D6000-memory.dmp

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memory/4516-14-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/4516-21-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4516-15-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4516-32-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4516-33-0x0000000001150000-0x0000000001172000-memory.dmp

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memory/4864-24-0x000001C569120000-0x000001C56923E000-memory.dmp

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memory/4864-35-0x0000000000DA0000-0x00000000015CA000-memory.dmp

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memory/4864-39-0x000001C56C6D0000-0x000001C56C7E8000-memory.dmp

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memory/4864-23-0x0000000000DA0000-0x00000000015CA000-memory.dmp

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memory/4864-25-0x000001C56AB10000-0x000001C56AB1C000-memory.dmp

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memory/4864-62-0x000001C56C6D0000-0x000001C56C7E8000-memory.dmp

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