formbook | e34026dc1422cbc2708192df2d577e1de13971f43b826e68c1c4cf0ea813d696

Analysis

max time kernel
149s
max time network
99s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
20/04/2026, 15:04

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General

Target
AGIMERO #AG2026032.js
Size 1.8MB
Sample260420-sfx8eahw2z
SHA256 e34026dc1422cbc2708192df2d577e1de13971f43b826e68c1c4cf0ea813d696
MD5 90eb4544e1509b6b1d942d1b13578b53
SHA1 0373176783d213834be53f109f81ea108ac59a88
SHA512 e351885a094772c42750ab31caf2a69b6b95df7903bea86fe0f0e560edc92a5d0bbd608cb5aa0f3d0b05dbaec6a3e35df217b69c7178ef4f0e5abeb2f97a035e
SSDEEP 24576:NHB98BvGa7VGvJ+aAsKWC17b0OE8+YV6MqhX8EjOVGF9Ae5ePnJXSFlTDCnO6:Bi9Q7KULrslGXg
TLSH
T17B95021189C46FB9CFEC561D90FE1A0EA3F04A8A501A798AE733BD47EFF7504521B198
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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/3912-15-0x0000000001650000-0x0000000001696000-memory.dmp	family_formbook
behavioral2/memory/3912-18-0x0000000001650000-0x0000000001696000-memory.dmp	family_formbook
behavioral2/memory/3912-27-0x0000000001650000-0x0000000001696000-memory.dmp	family_formbook
behavioral2/memory/1440-29-0x0000000000600000-0x0000000000643000-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	4924	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4012	powershell.exe

Suspicious use of SetThreadContext 13 IoCs

description	pid	Process	procid_target
PID 4012 set thread context of 3912	4012	powershell.exe	87
PID 3912 set thread context of 4924	3912	aspnet_compiler.exe	79
PID 3912 set thread context of 1440	3912	aspnet_compiler.exe	88
PID 4012 set thread context of 2404	4012	powershell.exe	91
PID 1440 set thread context of 4924	1440	upnpcont.exe	79
PID 4012 set thread context of 4016	4012	powershell.exe	92
PID 4012 set thread context of 3644	4012	powershell.exe	93
PID 4012 set thread context of 4844	4012	powershell.exe	95
PID 1440 set thread context of 3704	1440	upnpcont.exe	94
PID 4012 set thread context of 1296	4012	powershell.exe	98
PID 4012 set thread context of 3172	4012	powershell.exe	99
PID 4012 set thread context of 3388	4012	powershell.exe	101
PID 1440 set thread context of 5040	1440	upnpcont.exe	100

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	upnpcont.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
5000	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1383858298-2057492509-1726743289-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	upnpcont.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
3912	aspnet_compiler.exe
3912	aspnet_compiler.exe
3912	aspnet_compiler.exe
3912	aspnet_compiler.exe
4012	powershell.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
4012	powershell.exe
2404	aspnet_compiler.exe
4012	powershell.exe
4016	aspnet_compiler.exe
4012	powershell.exe
3644	aspnet_compiler.exe
4012	powershell.exe
4844	aspnet_compiler.exe
4012	powershell.exe
1296	aspnet_compiler.exe
4012	powershell.exe
3172	aspnet_compiler.exe
4012	powershell.exe
3388	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
3912	aspnet_compiler.exe
4924	wscript.exe
4924	wscript.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe
1440	upnpcont.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4012	powershell.exe
Token: SeDebugPrivilege	5000	taskkill.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4012	4924	wscript.exe	80
PID 4012 wrote to memory of 3972	4012	powershell.exe	82
PID 4012 wrote to memory of 2044	4012	powershell.exe	83
PID 4012 wrote to memory of 996	4012	powershell.exe	84
PID 4012 wrote to memory of 1896	4012	powershell.exe	85
PID 4012 wrote to memory of 2668	4012	powershell.exe	86
PID 4012 wrote to memory of 3912	4012	powershell.exe	87
PID 4012 wrote to memory of 3912	4012	powershell.exe	87
PID 4012 wrote to memory of 3912	4012	powershell.exe	87
PID 4924 wrote to memory of 1440	4924	wscript.exe	88
PID 4012 wrote to memory of 4244	4012	powershell.exe	89
PID 4012 wrote to memory of 2276	4012	powershell.exe	90
PID 4012 wrote to memory of 2404	4012	powershell.exe	91
PID 4012 wrote to memory of 2404	4012	powershell.exe	91
PID 4012 wrote to memory of 2404	4012	powershell.exe	91
PID 4012 wrote to memory of 4016	4012	powershell.exe	92
PID 4012 wrote to memory of 4016	4012	powershell.exe	92
PID 4012 wrote to memory of 4016	4012	powershell.exe	92
PID 4012 wrote to memory of 3644	4012	powershell.exe	93
PID 4012 wrote to memory of 3644	4012	powershell.exe	93
PID 4012 wrote to memory of 3644	4012	powershell.exe	93
PID 1440 wrote to memory of 3704	1440	upnpcont.exe	94
PID 4012 wrote to memory of 4844	4012	powershell.exe	95
PID 4012 wrote to memory of 4844	4012	powershell.exe	95
PID 4012 wrote to memory of 4844	4012	powershell.exe	95
PID 4012 wrote to memory of 1296	4012	powershell.exe	98
PID 4012 wrote to memory of 1296	4012	powershell.exe	98
PID 4012 wrote to memory of 1296	4012	powershell.exe	98
PID 4012 wrote to memory of 3172	4012	powershell.exe	99
PID 4012 wrote to memory of 3172	4012	powershell.exe	99
PID 4012 wrote to memory of 3172	4012	powershell.exe	99
PID 1440 wrote to memory of 5040	1440	upnpcont.exe	100
PID 4012 wrote to memory of 3388	4012	powershell.exe	101
PID 4012 wrote to memory of 3388	4012	powershell.exe	101
PID 4012 wrote to memory of 3388	4012	powershell.exe	101
PID 4924 wrote to memory of 5000	4924	wscript.exe	103

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\AGIMERO #AG2026032.js"
1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_O8ocs8tv9DUu_1776697500985.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3972
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2044
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:996
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1896
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2668
- - 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:3912
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4244
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2276
- - 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:2404
- - 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:4016
- - 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:3644
- - 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:4844
- - 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:1296
- - 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:3172
- - 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:3388
- C:\Windows\SysWOW64\upnpcont.exe
  "C:\Windows\SysWOW64\upnpcont.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:1440
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:3704
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:5040
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5000

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:2656

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:3084

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_O8ocs8tv9DUu_1776697500985.ps1

Path C:\Temp\ps_O8ocs8tv9DUu_1776697500985.ps1
Size 1.4MB
SHA256 ebbbe693e344634586260fc55ddaef6260508f3cb24960d9b987688705df1536
MD5 700daccd095914d06ed4d0431aac5a7a
SHA1 b1bb835b13e27f4299097b545a919daf5e992f3d
SHA512 211c46c12a37b8dd6b01fd4c58e78e7614571b78e036a027dc52074db98b4500aa1b4ac23f7ff5621fb12abb96291ed119ddfbfd1b7aacf7f54eb424a30d6628
SSDEEP 24576:a7Q+WRaVHXMyDlBHJQs4qXiu9NN4r01CKNkWjel9Z6KsSU6K:dbGHBDLpQszKQ1HNZD
TLSH
T1B8653350DE6F246FA658597A21BB7B3D46B3CD73568C088B4290A1C90C2B3D38F1F25E
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_e1qucjhg.jba.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e1qucjhg.jba.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1440-26-0x0000000000600000-0x0000000000643000-memory.dmp

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memory/1440-29-0x0000000000600000-0x0000000000643000-memory.dmp

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memory/1440-53-0x0000000000E90000-0x0000000000FDD000-memory.dmp

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memory/2656-50-0x0000024C4BFE0000-0x0000024C4C03D000-memory.dmp

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memory/3084-51-0x000001AAE83B0000-0x000001AAE840D000-memory.dmp

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memory/3704-49-0x00000276CCE70000-0x00000276CCF8E000-memory.dmp

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memory/3912-14-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/3912-15-0x0000000001650000-0x0000000001696000-memory.dmp

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memory/3912-27-0x0000000001650000-0x0000000001696000-memory.dmp

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memory/3912-17-0x0000000001A10000-0x0000000001D66000-memory.dmp

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memory/3912-18-0x0000000001650000-0x0000000001696000-memory.dmp

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memory/4012-12-0x0000026577220000-0x000002657722C000-memory.dmp

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memory/4012-19-0x00000265772C0000-0x00000265772D0000-memory.dmp

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memory/4012-16-0x00000265772C0000-0x00000265772D0000-memory.dmp

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memory/4012-2-0x00000265772C0000-0x00000265772D0000-memory.dmp

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memory/4012-23-0x000002655ECB0000-0x000002655ECBC000-memory.dmp

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memory/4012-25-0x000002655ED10000-0x000002655ED22000-memory.dmp

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memory/4012-24-0x00000265772D0000-0x0000026577A7E000-memory.dmp

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memory/4012-13-0x0000026577BF0000-0x0000026577BF8000-memory.dmp

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memory/4012-10-0x00000265772C0000-0x00000265772D0000-memory.dmp

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memory/4012-3-0x0000026577230000-0x0000026577252000-memory.dmp

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memory/4012-1-0x00000265772C0000-0x00000265772D0000-memory.dmp

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memory/4924-22-0x00000212AF750000-0x00000212AFEFE000-memory.dmp

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memory/4924-32-0x00000212AE880000-0x00000212AE96A000-memory.dmp

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memory/4924-31-0x00000000005B0000-0x0000000001F4C000-memory.dmp

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memory/4924-21-0x00000212AC110000-0x00000212AC11C000-memory.dmp

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memory/4924-20-0x00000000005B0000-0x0000000001F4C000-memory.dmp

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memory/4924-71-0x00000212AE880000-0x00000212AE96A000-memory.dmp

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memory/4924-73-0x00000212AF750000-0x00000212AFEFE000-memory.dmp

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memory/5040-65-0x000001D34CE40000-0x000001D34CEF3000-memory.dmp

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