formbook | 17a6642be4a37635d5b9a00d9d8b5ff14ae7f4d8e94fdc1c8a53f664513c27da

Analysis

max time kernel
149s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
06/05/2026, 12:35

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General

Target
_17a6642be4a37635d5b9a00d9d8b5ff14ae7f4d8e94fdc1c8a53f664513c27da.js
Size 3.0MB
Sample260506-psltcsa12v
SHA256 17a6642be4a37635d5b9a00d9d8b5ff14ae7f4d8e94fdc1c8a53f664513c27da
MD5 f0bf4b4dcb11f4e4c29c9eacc851e20b
SHA1 e14dfc8b3cda8f44a4602a4da1844901a4296d31
SHA512 93942b34715ed131e1ab3b864c175521f767a9b33e3a608a40b30c7d64884838126770c87fde51779b01531cb970546e0ce1888fdce191d2cfa3b26f28a4db2a
SSDEEP 49152:LvlGK6QWKci05OsAdTIM4mj5rMJUGAAAPkTZODwZtRqG4xanMqdmyB:q
TLSH
T113E55B17C66F974E180D3B51006A5D9AFE89CAFCEF727BC4E0CF90B614AA1110B856B7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware 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/908-16-0x0000000001580000-0x00000000015C6000-memory.dmp	family_formbook
behavioral2/memory/908-20-0x0000000001580000-0x00000000015C6000-memory.dmp	family_formbook
behavioral2/memory/908-22-0x0000000001580000-0x00000000015C6000-memory.dmp	family_formbook
behavioral2/memory/908-32-0x0000000001580000-0x00000000015C6000-memory.dmp	family_formbook
behavioral2/memory/3900-34-0x0000000001020000-0x0000000001064000-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	4592	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3232	powershell.exe

ConfuserEx .NET packer 2 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/3232-12-0x000001CF7B300000-0x000001CF7B314000-memory.dmp	ConfuserEx
behavioral2/memory/3232-14-0x000001CF7B5D0000-0x000001CF7B5E4000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 13 IoCs

description	pid	Process	procid_target
PID 3232 set thread context of 908	3232	powershell.exe	88
PID 908 set thread context of 4592	908	aspnet_compiler.exe	79
PID 908 set thread context of 3900	908	aspnet_compiler.exe	89
PID 3232 set thread context of 2556	3232	powershell.exe	90
PID 3900 set thread context of 4592	3900	rekeywiz.exe	79
PID 3232 set thread context of 2988	3232	powershell.exe	92
PID 3232 set thread context of 5040	3232	powershell.exe	94
PID 3232 set thread context of 2360	3232	powershell.exe	97
PID 3900 set thread context of 856	3900	rekeywiz.exe	95
PID 3232 set thread context of 3288	3232	powershell.exe	100
PID 3232 set thread context of 3936	3232	powershell.exe	102
PID 3232 set thread context of 4736	3232	powershell.exe	105
PID 3900 set thread context of 1176	3900	rekeywiz.exe	103

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	rekeywiz.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
1428	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3847269522-1618051987-1942096715-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rekeywiz.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

pid	Process
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
908	aspnet_compiler.exe
908	aspnet_compiler.exe
908	aspnet_compiler.exe
908	aspnet_compiler.exe
3232	powershell.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3232	powershell.exe
2556	aspnet_compiler.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
2988	aspnet_compiler.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
5040	aspnet_compiler.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
2360	aspnet_compiler.exe
3232	powershell.exe
3288	aspnet_compiler.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
3936	aspnet_compiler.exe
3232	powershell.exe
3232	powershell.exe
3232	powershell.exe
4736	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
908	aspnet_compiler.exe
4592	wscript.exe
4592	wscript.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe
3900	rekeywiz.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3232	powershell.exe
Token: SeDebugPrivilege	1428	taskkill.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 3232	4592	wscript.exe	80
PID 3232 wrote to memory of 2148	3232	powershell.exe	82
PID 3232 wrote to memory of 2844	3232	powershell.exe	83
PID 3232 wrote to memory of 1916	3232	powershell.exe	84
PID 3232 wrote to memory of 580	3232	powershell.exe	85
PID 3232 wrote to memory of 1052	3232	powershell.exe	86
PID 3232 wrote to memory of 2952	3232	powershell.exe	87
PID 3232 wrote to memory of 908	3232	powershell.exe	88
PID 3232 wrote to memory of 908	3232	powershell.exe	88
PID 3232 wrote to memory of 908	3232	powershell.exe	88
PID 4592 wrote to memory of 3900	4592	wscript.exe	89
PID 3232 wrote to memory of 2556	3232	powershell.exe	90
PID 3232 wrote to memory of 2556	3232	powershell.exe	90
PID 3232 wrote to memory of 2556	3232	powershell.exe	90
PID 3232 wrote to memory of 2092	3232	powershell.exe	91
PID 3232 wrote to memory of 2988	3232	powershell.exe	92
PID 3232 wrote to memory of 2988	3232	powershell.exe	92
PID 3232 wrote to memory of 2988	3232	powershell.exe	92
PID 3232 wrote to memory of 2616	3232	powershell.exe	93
PID 3232 wrote to memory of 5040	3232	powershell.exe	94
PID 3232 wrote to memory of 5040	3232	powershell.exe	94
PID 3232 wrote to memory of 5040	3232	powershell.exe	94
PID 3900 wrote to memory of 856	3900	rekeywiz.exe	95
PID 3232 wrote to memory of 2644	3232	powershell.exe	96
PID 3232 wrote to memory of 2360	3232	powershell.exe	97
PID 3232 wrote to memory of 2360	3232	powershell.exe	97
PID 3232 wrote to memory of 2360	3232	powershell.exe	97
PID 3232 wrote to memory of 3288	3232	powershell.exe	100
PID 3232 wrote to memory of 3288	3232	powershell.exe	100
PID 3232 wrote to memory of 3288	3232	powershell.exe	100
PID 3232 wrote to memory of 1392	3232	powershell.exe	101
PID 3232 wrote to memory of 3936	3232	powershell.exe	102
PID 3232 wrote to memory of 3936	3232	powershell.exe	102
PID 3232 wrote to memory of 3936	3232	powershell.exe	102
PID 3900 wrote to memory of 1176	3900	rekeywiz.exe	103
PID 3232 wrote to memory of 2216	3232	powershell.exe	104
PID 3232 wrote to memory of 4736	3232	powershell.exe	105
PID 3232 wrote to memory of 4736	3232	powershell.exe	105
PID 3232 wrote to memory of 4736	3232	powershell.exe	105
PID 4592 wrote to memory of 1428	4592	wscript.exe	107

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\_17a6642be4a37635d5b9a00d9d8b5ff14ae7f4d8e94fdc1c8a53f664513c27da.js
1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_QKNOgEQ51KUV_1778070959024.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3232
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2148
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1916
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:580
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2952
- - 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:908
- - 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:2556
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2092
- - 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:2988
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2616
- - 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:5040
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2644
- - 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:2360
- - 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:3288
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1392
- - 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:3936
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2216
- - 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:4736
- C:\Windows\SysWOW64\rekeywiz.exe
  "C:\Windows\SysWOW64\rekeywiz.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3900
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:856
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1176
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1428

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:948

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:3972

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

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

ps_QKNOgEQ51KUV_1778070959024.ps1

Path C:\Temp\ps_QKNOgEQ51KUV_1778070959024.ps1
Size 2.2MB
SHA256 6db6d7559fa56ed966201a73e820342664b3c9041f8609e66c5219f0be86f066
MD5 fe97c71ac64ada0b5030f1b2c38c6d6c
SHA1 cbbf3726d9af44f31b3b54999026ba22fd4cf691
SHA512 6638ea64f2187d34b87c7cc4720684d3f849aedf00a3d795531f75058dbfcab5cfa3447449361948d2bc53c3e1fdfae42df347015d942efc4cac669a9433334c
SSDEEP 24576:6EVoN/TyUNy/NIYh0VuIXX4N6M9WlWKLal3z1lzOS:j
TLSH
T196B5BFC9D16E44D29C053FC998142AC78B2586728A7400283A7FBD498F7B5FFC15EEE6
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_dlw3ylhw.ft3.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dlw3ylhw.ft3.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/856-52-0x000001E36E9B0000-0x000001E36EA6C000-memory.dmp

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memory/908-33-0x0000000001E90000-0x0000000001EB4000-memory.dmp

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memory/908-20-0x0000000001580000-0x00000000015C6000-memory.dmp

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memory/908-31-0x0000000001EC0000-0x0000000001F9F000-memory.dmp

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memory/908-32-0x0000000001580000-0x00000000015C6000-memory.dmp

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memory/908-29-0x0000000001580000-0x00000000015C6000-memory.dmp

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memory/908-15-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/908-23-0x0000000001E90000-0x0000000001EB4000-memory.dmp

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memory/908-22-0x0000000001580000-0x00000000015C6000-memory.dmp

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memory/908-16-0x0000000001580000-0x00000000015C6000-memory.dmp

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memory/908-19-0x0000000001A30000-0x0000000001D86000-memory.dmp

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memory/1176-67-0x000001CB60430000-0x000001CB6053C000-memory.dmp

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memory/3232-17-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-14-0x000001CF7B5D0000-0x000001CF7B5E4000-memory.dmp

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memory/3232-18-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-10-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-9-0x000001CF7B310000-0x000001CF7B332000-memory.dmp

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memory/3232-27-0x000001CF7B2C0000-0x000001CF7B2D2000-memory.dmp

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memory/3232-26-0x000001CF7AC20000-0x000001CF7AC2C000-memory.dmp

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memory/3232-1-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-12-0x000001CF7B300000-0x000001CF7B314000-memory.dmp

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memory/3232-21-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-2-0x000001CF7AC90000-0x000001CF7ACA0000-memory.dmp

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memory/3232-13-0x000001CF7B5A0000-0x000001CF7B5A6000-memory.dmp

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memory/3900-28-0x0000000001020000-0x0000000001064000-memory.dmp

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memory/3900-34-0x0000000001020000-0x0000000001064000-memory.dmp

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memory/3900-36-0x0000000001520000-0x00000000015FF000-memory.dmp

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memory/4592-37-0x0000000000CC0000-0x0000000002082000-memory.dmp

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memory/4592-38-0x000002AC329D0000-0x000002AC32A9E000-memory.dmp

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memory/4592-24-0x0000000000CC0000-0x0000000002082000-memory.dmp

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memory/4592-25-0x000002AC2E070000-0x000002AC2E07C000-memory.dmp

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memory/4592-68-0x000002AC329D0000-0x000002AC32A9E000-memory.dmp

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