formbook | c2474da768d306dfa0e4504d8d999dec37705232059734b25f78620fea2d53ce

Analysis

max time kernel
149s
max time network
94s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/06/2026, 12:44

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

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

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
behavioral3/memory/4948-14-0x0000000001560000-0x00000000015A6000-memory.dmp	family_formbook
behavioral3/memory/4948-18-0x0000000001560000-0x00000000015A6000-memory.dmp	family_formbook
behavioral3/memory/4948-22-0x0000000001560000-0x00000000015A6000-memory.dmp	family_formbook
behavioral3/memory/568-24-0x0000000000120000-0x0000000000163000-memory.dmp	family_formbook

Badlisted process makes network request 2 IoCs

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

flow	pid	Process
2	3516	wscript.exe
3	3516	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
5012	powershell.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral3/memory/5012-12-0x000001FE7B4B0000-0x000001FE7B4BC000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 11 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 4948	5012	powershell.exe	88
PID 4948 set thread context of 3516	4948	aspnet_compiler.exe	79
PID 4948 set thread context of 568	4948	aspnet_compiler.exe	89
PID 5012 set thread context of 3964	5012	powershell.exe	91
PID 568 set thread context of 3516	568	at.exe	79
PID 5012 set thread context of 5052	5012	powershell.exe	92
PID 5012 set thread context of 4976	5012	powershell.exe	93
PID 5012 set thread context of 2304	5012	powershell.exe	95
PID 5012 set thread context of 964	5012	powershell.exe	96
PID 5012 set thread context of 852	5012	powershell.exe	98
PID 5012 set thread context of 4228	5012	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	at.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
3344	taskkill.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

pid	Process
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
4948	aspnet_compiler.exe
4948	aspnet_compiler.exe
4948	aspnet_compiler.exe
4948	aspnet_compiler.exe
5012	powershell.exe
568	at.exe
568	at.exe
568	at.exe
568	at.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
3964	aspnet_compiler.exe
5012	powershell.exe
5052	aspnet_compiler.exe
5012	powershell.exe
4976	aspnet_compiler.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
2304	aspnet_compiler.exe
5012	powershell.exe
964	aspnet_compiler.exe
5012	powershell.exe
5012	powershell.exe
5012	powershell.exe
852	aspnet_compiler.exe
5012	powershell.exe
4228	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4948	aspnet_compiler.exe
3516	wscript.exe
3516	wscript.exe
568	at.exe
568	at.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	3344	taskkill.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 5012	3516	wscript.exe	80
PID 5012 wrote to memory of 2476	5012	powershell.exe	82
PID 5012 wrote to memory of 5092	5012	powershell.exe	83
PID 5012 wrote to memory of 820	5012	powershell.exe	84
PID 5012 wrote to memory of 2280	5012	powershell.exe	85
PID 5012 wrote to memory of 2756	5012	powershell.exe	86
PID 5012 wrote to memory of 4304	5012	powershell.exe	87
PID 5012 wrote to memory of 4948	5012	powershell.exe	88
PID 5012 wrote to memory of 4948	5012	powershell.exe	88
PID 5012 wrote to memory of 4948	5012	powershell.exe	88
PID 3516 wrote to memory of 568	3516	wscript.exe	89
PID 5012 wrote to memory of 3768	5012	powershell.exe	90
PID 5012 wrote to memory of 3964	5012	powershell.exe	91
PID 5012 wrote to memory of 3964	5012	powershell.exe	91
PID 5012 wrote to memory of 3964	5012	powershell.exe	91
PID 5012 wrote to memory of 5052	5012	powershell.exe	92
PID 5012 wrote to memory of 5052	5012	powershell.exe	92
PID 5012 wrote to memory of 5052	5012	powershell.exe	92
PID 5012 wrote to memory of 4976	5012	powershell.exe	93
PID 5012 wrote to memory of 4976	5012	powershell.exe	93
PID 5012 wrote to memory of 4976	5012	powershell.exe	93
PID 5012 wrote to memory of 3232	5012	powershell.exe	94
PID 5012 wrote to memory of 2304	5012	powershell.exe	95
PID 5012 wrote to memory of 2304	5012	powershell.exe	95
PID 5012 wrote to memory of 2304	5012	powershell.exe	95
PID 5012 wrote to memory of 964	5012	powershell.exe	96
PID 5012 wrote to memory of 964	5012	powershell.exe	96
PID 5012 wrote to memory of 964	5012	powershell.exe	96
PID 5012 wrote to memory of 4148	5012	powershell.exe	97
PID 5012 wrote to memory of 852	5012	powershell.exe	98
PID 5012 wrote to memory of 852	5012	powershell.exe	98
PID 5012 wrote to memory of 852	5012	powershell.exe	98
PID 5012 wrote to memory of 4228	5012	powershell.exe	99
PID 5012 wrote to memory of 4228	5012	powershell.exe	99
PID 5012 wrote to memory of 4228	5012	powershell.exe	99
PID 3516 wrote to memory of 3344	3516	wscript.exe	101

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\tmpast1wn81.js
1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_yroHudGZzMir_1780404282818.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5012
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2476
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5092
- - 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:2280
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2756
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4304
- - 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:4948
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3768
- - 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:3964
- - 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:5052
- - 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:4976
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    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⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2304
- - 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:964
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4148
- - 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:852
- - 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:4228
- C:\Windows\SysWOW64\at.exe
  "C:\Windows\SysWOW64\at.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:568
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3344

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

Loading Replay Monitor...

Downloads

ps_yroHudGZzMir_1780404282818.ps1

Path C:\Temp\ps_yroHudGZzMir_1780404282818.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_rftie1yv.qdc.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rftie1yv.qdc.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/568-21-0x0000000000120000-0x0000000000163000-memory.dmp

Download

memory/568-24-0x0000000000120000-0x0000000000163000-memory.dmp

Download

memory/3516-20-0x0000000000960000-0x0000000003936000-memory.dmp

Download

memory/3516-34-0x000001800F090000-0x000001800F18A000-memory.dmp

Download

memory/3516-27-0x000001800F090000-0x000001800F18A000-memory.dmp

Download

memory/3516-26-0x0000000000960000-0x0000000003936000-memory.dmp

Download

memory/4948-17-0x0000000001AE0000-0x0000000001E36000-memory.dmp

Download

memory/4948-14-0x0000000001560000-0x00000000015A6000-memory.dmp

Download

memory/4948-18-0x0000000001560000-0x00000000015A6000-memory.dmp

Download

memory/4948-22-0x0000000001560000-0x00000000015A6000-memory.dmp

Download

memory/4948-13-0x0000000000400000-0x0000000000446000-memory.dmp

Download

memory/5012-15-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download

memory/5012-9-0x000001FE7B460000-0x000001FE7B482000-memory.dmp

Download

memory/5012-19-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download

memory/5012-16-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download

memory/5012-1-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download

memory/5012-12-0x000001FE7B4B0000-0x000001FE7B4BC000-memory.dmp

Download

memory/5012-2-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download

memory/5012-10-0x000001FE785F0000-0x000001FE78600000-memory.dmp

Download