formbook | c2474da768d306dfa0e4504d8d999dec37705232059734b25f78620fea2d53ce

Analysis

max time kernel
149s
max time network
151s
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, 12:44

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General

Target
tmpast1wn81.js
Size 1.9MB
Sample260602-pytfdsdv8s
SHA256 c2474da768d306dfa0e4504d8d999dec37705232059734b25f78620fea2d53ce
MD5 a2c09997b70907379c9920821cb9d570
SHA1 8100e102daf2f05400a02e4e8f5d1056599eaaf6
SHA512 09e61ae14d861c00a619f667aea084612fd1d699e2a9127af0624f94e476d0c830c3e5a4cc403f63316473010c9db0f767c49f244f6484a01ce814d997235ae9
SSDEEP 24576:8GShpyj6tmzhkjPfuak/9vfffgs8CFjiMHQm67AUIwTKzzR6yByC:BYPhCpMurHQ/VLTKZ
TLSH
T1AB95025189C83FB8CFA85A1C40FE150E93F14D8E54196989FB73BE4ABFBB504522B1D8
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/2728-17-0x0000000000750000-0x0000000000796000-memory.dmp	family_formbook
behavioral2/memory/2728-20-0x0000000000750000-0x0000000000796000-memory.dmp	family_formbook
behavioral2/memory/2728-25-0x0000000000750000-0x0000000000796000-memory.dmp	family_formbook
behavioral2/memory/1920-26-0x0000000000F30000-0x0000000000F73000-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
20	3372	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2284	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-1-5-21-668679576-120646659-2289335452-1000\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-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	at.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/2284-13-0x000001AACADA0000-0x000001AACADAC000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 13 IoCs

description	pid	Process	procid_target
PID 2284 set thread context of 2728	2284	powershell.exe	98
PID 2728 set thread context of 3372	2728	aspnet_compiler.exe	86
PID 2728 set thread context of 1920	2728	aspnet_compiler.exe	102
PID 2284 set thread context of 2772	2284	powershell.exe	103
PID 1920 set thread context of 3372	1920	at.exe	86
PID 2284 set thread context of 444	2284	powershell.exe	104
PID 2284 set thread context of 2504	2284	powershell.exe	105
PID 2284 set thread context of 3632	2284	powershell.exe	109
PID 1920 set thread context of 2632	1920	at.exe	108
PID 2284 set thread context of 1064	2284	powershell.exe	116
PID 2284 set thread context of 3396	2284	powershell.exe	119
PID 2284 set thread context of 2600	2284	powershell.exe	121
PID 1920 set thread context of 4496	1920	at.exe	120

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	at.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
3568	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	at.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2284	powershell.exe
2728	aspnet_compiler.exe
2728	aspnet_compiler.exe
2728	aspnet_compiler.exe
2728	aspnet_compiler.exe
2284	powershell.exe
1920	at.exe
1920	at.exe
1920	at.exe
1920	at.exe
2284	powershell.exe
2772	aspnet_compiler.exe
2284	powershell.exe
444	aspnet_compiler.exe
2284	powershell.exe
2504	aspnet_compiler.exe
2284	powershell.exe
3632	aspnet_compiler.exe
2284	powershell.exe
2284	powershell.exe
1064	aspnet_compiler.exe
2284	powershell.exe
3396	aspnet_compiler.exe
2284	powershell.exe
2600	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
2728	aspnet_compiler.exe
3372	wscript.exe
3372	wscript.exe
1920	at.exe
1920	at.exe
1920	at.exe
1920	at.exe
1920	at.exe
1920	at.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2284	powershell.exe
Token: SeDebugPrivilege	3568	taskkill.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 2284	3372	wscript.exe	89
PID 2284 wrote to memory of 3164	2284	powershell.exe	92
PID 2284 wrote to memory of 4816	2284	powershell.exe	93
PID 2284 wrote to memory of 2720	2284	powershell.exe	94
PID 2284 wrote to memory of 3464	2284	powershell.exe	95
PID 2284 wrote to memory of 4812	2284	powershell.exe	96
PID 2284 wrote to memory of 2728	2284	powershell.exe	98
PID 2284 wrote to memory of 2728	2284	powershell.exe	98
PID 2284 wrote to memory of 2728	2284	powershell.exe	98
PID 3372 wrote to memory of 1920	3372	wscript.exe	102
PID 2284 wrote to memory of 2772	2284	powershell.exe	103
PID 2284 wrote to memory of 2772	2284	powershell.exe	103
PID 2284 wrote to memory of 2772	2284	powershell.exe	103
PID 2284 wrote to memory of 444	2284	powershell.exe	104
PID 2284 wrote to memory of 444	2284	powershell.exe	104
PID 2284 wrote to memory of 444	2284	powershell.exe	104
PID 2284 wrote to memory of 2504	2284	powershell.exe	105
PID 2284 wrote to memory of 2504	2284	powershell.exe	105
PID 2284 wrote to memory of 2504	2284	powershell.exe	105
PID 1920 wrote to memory of 2632	1920	at.exe	108
PID 2284 wrote to memory of 3632	2284	powershell.exe	109
PID 2284 wrote to memory of 3632	2284	powershell.exe	109
PID 2284 wrote to memory of 3632	2284	powershell.exe	109
PID 2284 wrote to memory of 1064	2284	powershell.exe	116
PID 2284 wrote to memory of 1064	2284	powershell.exe	116
PID 2284 wrote to memory of 1064	2284	powershell.exe	116
PID 2284 wrote to memory of 3396	2284	powershell.exe	119
PID 2284 wrote to memory of 3396	2284	powershell.exe	119
PID 2284 wrote to memory of 3396	2284	powershell.exe	119
PID 1920 wrote to memory of 4496	1920	at.exe	120
PID 2284 wrote to memory of 2600	2284	powershell.exe	121
PID 2284 wrote to memory of 2600	2284	powershell.exe	121
PID 2284 wrote to memory of 2600	2284	powershell.exe	121
PID 3372 wrote to memory of 3568	3372	wscript.exe	122

outlook_office_path 1 IoCs

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	at.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\tmpast1wn81.js
1⤵
- Badlisted process makes network request
- Checks computer location settings
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_4AwY1XcedMEW_1780404283910.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3164
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4816
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2720
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3464
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4812
- - 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:2728
- - 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:2772
- - 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:444
- - 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:2504
- - 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:3632
- - 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:1064
- - 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:3396
- - 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:2600
- C:\Windows\SysWOW64\at.exe
  "C:\Windows\SysWOW64\at.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:1920
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:2632
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4496
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3568

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:3520

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:4100

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_4AwY1XcedMEW_1780404283910.ps1

Path C:\Temp\ps_4AwY1XcedMEW_1780404283910.ps1
Size 1.4MB
SHA256 d59186e4e3aedd78c10d75f069b1babfea7a88beeec236a52cd6df30c2d9a381
MD5 4d5e97e5edceca8c0d51e711d3dfc64c
SHA1 9b638935d7dfb37f94cf88cf9e915db271c7e08b
SHA512 8e809b003a76d106677bd16f08ddc6db9730248c0770f71b4ae41f269e7df6d2d430b2230ecb2afb6e8bd6251cf9136fb341f27d2e9ab4ac69370f1d3f7fd292
SSDEEP 24576:7EUXuRir0oF38rz99mQLZA0BJP63Xnmz6kgIVVlc1c8jmvXCA19rQ4Bz7Mhzdn:7EDRiYodyzF7Pbgg+nwtjan
TLSH
T1446533345BA4BE6E06B8E70584236F249B63034269B9F9CB01E1DDF39B5B7C4D48BD24
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_335mi4iz.gnk.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_335mi4iz.gnk.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1920-24-0x0000000000F30000-0x0000000000F73000-memory.dmp

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memory/1920-26-0x0000000000F30000-0x0000000000F73000-memory.dmp

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memory/2284-13-0x000001AACADA0000-0x000001AACADAC000-memory.dmp

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memory/2284-12-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-23-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-14-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-15-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-18-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-3-0x000001AACAA10000-0x000001AACAA32000-memory.dmp

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memory/2284-1-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-2-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2284-21-0x000001AAB02E0000-0x000001AAB02F0000-memory.dmp

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memory/2632-36-0x0000017D76A60000-0x0000017D76B57000-memory.dmp

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memory/2728-19-0x00000000010F0000-0x000000000143A000-memory.dmp

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memory/2728-20-0x0000000000750000-0x0000000000796000-memory.dmp

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memory/2728-25-0x0000000000750000-0x0000000000796000-memory.dmp

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memory/2728-17-0x0000000000750000-0x0000000000796000-memory.dmp

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memory/2728-16-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/3372-22-0x00000000006D0000-0x0000000003415000-memory.dmp

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memory/3372-28-0x00000000006D0000-0x0000000003415000-memory.dmp

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memory/3372-29-0x000002074AD80000-0x000002074AE33000-memory.dmp

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memory/3372-44-0x000002074AD80000-0x000002074AE33000-memory.dmp

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memory/4496-43-0x000001D628640000-0x000001D628707000-memory.dmp

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