formbook | 610b6eb873a9a8bf9022c5bcdc4c415a0ceaa2b29f02a969ef8f0b9178cb5c21

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/06/2026, 12:41

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General

Target
tmphbi8vakm.js
Size 3.7MB
Sample260602-pws2vadv31
SHA256 610b6eb873a9a8bf9022c5bcdc4c415a0ceaa2b29f02a969ef8f0b9178cb5c21
MD5 9290f3d2c69fb07093580e699d4a1c5b
SHA1 d18d2258e8cdf07e1d0ad4639e89513364b29311
SHA512 4f1ee95b99a69592f35e85a4a1238538f5fea5690f57b92ff37754ba3d87dc91495f28e9bf3d44b3c982d0c3e9b008f0d027839ba57d55512b2434725fb4c180
SSDEEP 49152:86OWx73AVPzPaaoB0j/f630jA+Y16OWx73AVPzPaaoB0j/f630jA+9:5
TLSH
T15106021189C82FB4CFAC5A1980FE191EA3F04A8F542A7A49F733BD46BFE7904520719D
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware collection 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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4604-16-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/4604-18-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/4604-23-0x0000000000BB0000-0x0000000000BF6000-memory.dmp	family_formbook
behavioral2/memory/2584-24-0x0000000000B70000-0x0000000000BB3000-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
38	3868	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3184	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-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation	wscript.exe

Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	proquota.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/3184-12-0x000001BDAD280000-0x000001BDAD28C000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 13 IoCs

description	pid	Process	procid_target
PID 3184 set thread context of 4604	3184	powershell.exe	98
PID 4604 set thread context of 3868	4604	aspnet_compiler.exe	85
PID 4604 set thread context of 2584	4604	aspnet_compiler.exe	99
PID 3184 set thread context of 2952	3184	powershell.exe	105
PID 2584 set thread context of 3868	2584	proquota.exe	85
PID 3184 set thread context of 2100	3184	powershell.exe	108
PID 3184 set thread context of 1912	3184	powershell.exe	110
PID 3184 set thread context of 4932	3184	powershell.exe	113
PID 2584 set thread context of 4168	2584	proquota.exe	112
PID 3184 set thread context of 3712	3184	powershell.exe	116
PID 3184 set thread context of 3360	3184	powershell.exe	118
PID 3184 set thread context of 720	3184	powershell.exe	120
PID 2584 set thread context of 1580	2584	proquota.exe	119

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
3088	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	proquota.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
3184	powershell.exe
4604	aspnet_compiler.exe
4604	aspnet_compiler.exe
4604	aspnet_compiler.exe
4604	aspnet_compiler.exe
3184	powershell.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe
3184	powershell.exe
3184	powershell.exe
2952	aspnet_compiler.exe
3184	powershell.exe
2100	aspnet_compiler.exe
3184	powershell.exe
1912	aspnet_compiler.exe
3184	powershell.exe
4932	aspnet_compiler.exe
3184	powershell.exe
3712	aspnet_compiler.exe
3184	powershell.exe
3360	aspnet_compiler.exe
3184	powershell.exe
720	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
4604	aspnet_compiler.exe
3868	wscript.exe
3868	wscript.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe
2584	proquota.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3184	powershell.exe
Token: SeDebugPrivilege	3088	taskkill.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3868 wrote to memory of 3184	3868	wscript.exe	86
PID 3184 wrote to memory of 3720	3184	powershell.exe	91
PID 3184 wrote to memory of 2120	3184	powershell.exe	92
PID 3184 wrote to memory of 2052	3184	powershell.exe	93
PID 3184 wrote to memory of 3836	3184	powershell.exe	94
PID 3184 wrote to memory of 1784	3184	powershell.exe	95
PID 3184 wrote to memory of 4604	3184	powershell.exe	98
PID 3184 wrote to memory of 4604	3184	powershell.exe	98
PID 3184 wrote to memory of 4604	3184	powershell.exe	98
PID 3868 wrote to memory of 2584	3868	wscript.exe	99
PID 3184 wrote to memory of 2952	3184	powershell.exe	105
PID 3184 wrote to memory of 2952	3184	powershell.exe	105
PID 3184 wrote to memory of 2952	3184	powershell.exe	105
PID 3184 wrote to memory of 2100	3184	powershell.exe	108
PID 3184 wrote to memory of 2100	3184	powershell.exe	108
PID 3184 wrote to memory of 2100	3184	powershell.exe	108
PID 3184 wrote to memory of 1912	3184	powershell.exe	110
PID 3184 wrote to memory of 1912	3184	powershell.exe	110
PID 3184 wrote to memory of 1912	3184	powershell.exe	110
PID 2584 wrote to memory of 4168	2584	proquota.exe	112
PID 3184 wrote to memory of 4932	3184	powershell.exe	113
PID 3184 wrote to memory of 4932	3184	powershell.exe	113
PID 3184 wrote to memory of 4932	3184	powershell.exe	113
PID 3184 wrote to memory of 3712	3184	powershell.exe	116
PID 3184 wrote to memory of 3712	3184	powershell.exe	116
PID 3184 wrote to memory of 3712	3184	powershell.exe	116
PID 3184 wrote to memory of 3360	3184	powershell.exe	118
PID 3184 wrote to memory of 3360	3184	powershell.exe	118
PID 3184 wrote to memory of 3360	3184	powershell.exe	118
PID 2584 wrote to memory of 1580	2584	proquota.exe	119
PID 3184 wrote to memory of 720	3184	powershell.exe	120
PID 3184 wrote to memory of 720	3184	powershell.exe	120
PID 3184 wrote to memory of 720	3184	powershell.exe	120
PID 3868 wrote to memory of 3088	3868	wscript.exe	121

outlook_office_path 1 IoCs

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	proquota.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\tmphbi8vakm.js
1⤵
- Badlisted process makes network request
- Checks computer location settings
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3868
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_uTVZdyv1ICgp_1780404075282.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3184
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3720
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2120
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2052
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1784
- - 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:4604
- - 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: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 behavior: EnumeratesProcesses
    PID:2100
- - 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:1912
- - 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:4932
- - 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:3712
- - 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:3360
- - 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:720
- C:\Windows\SysWOW64\proquota.exe
  "C:\Windows\SysWOW64\proquota.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  PID:2584
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:4168
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1580
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3088

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:4244

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:2148

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

ps_uTVZdyv1ICgp_1780404075282.ps1

Path C:\Temp\ps_uTVZdyv1ICgp_1780404075282.ps1
Size 1.4MB
SHA256 19013922104cf4cb7f264c84052f87cc78558a9c7b28f773c07d6fb323f2423e
MD5 3aa445a777d14ce9e701965453e83dcf
SHA1 5f1a51ac171fd9222cd7e5bd704c1cb1e90d91e4
SHA512 b9638518be712f64f8e6c68882e0809fe4713858b063e5baa6ff31ff088e393e6d8b4f98a01357089c9c2cc983956e570f4d90167df3c5cc400b8b287ad5275c
SSDEEP 24576:B9z2r04QpOv1bxN5sZUB0MeEhDgSjUGm70v+t7uDUPET/2P3gt9GUVT:srbYS0UhKbNtvVer
TLSH
T169653322E784BCA507DD522C964D4F990A7513AEC819E2F726FC25D3654FB0A807FE0E
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_gu5qodhz.zia.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gu5qodhz.zia.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1580-42-0x0000025BE8600000-0x0000025BE86AD000-memory.dmp

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memory/2584-22-0x0000000000B70000-0x0000000000BB3000-memory.dmp

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memory/2584-24-0x0000000000B70000-0x0000000000BB3000-memory.dmp

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memory/3184-12-0x000001BDAD280000-0x000001BDAD28C000-memory.dmp

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memory/3184-21-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3184-7-0x000001BDC7910000-0x000001BDC7932000-memory.dmp

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memory/3184-13-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3184-15-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3184-11-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3184-1-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3184-19-0x000001BDC5890000-0x000001BDC58A0000-memory.dmp

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memory/3868-26-0x0000000000BB0000-0x0000000003E2D000-memory.dmp

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memory/3868-20-0x0000000000BB0000-0x0000000003E2D000-memory.dmp

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memory/3868-27-0x00000161D6FA0000-0x00000161D705A000-memory.dmp

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memory/3868-41-0x00000161D6FA0000-0x00000161D705A000-memory.dmp

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memory/4168-34-0x0000015532D70000-0x0000015532E40000-memory.dmp

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memory/4604-18-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4604-23-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4604-17-0x0000000001190000-0x00000000014DA000-memory.dmp

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memory/4604-16-0x0000000000BB0000-0x0000000000BF6000-memory.dmp

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memory/4604-14-0x0000000000400000-0x0000000000446000-memory.dmp

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