formbook | 2a2b4598b2a424bba1b0f6e1f3837e1268d210291b22e52f67ee6b6c62a95f11

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20251016-en
resource tags

arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2025, 00:56

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
slynewbin.ps1
Size 2.1MB
Sample251023-bard8seq2z
SHA256 2a2b4598b2a424bba1b0f6e1f3837e1268d210291b22e52f67ee6b6c62a95f11
MD5 bb5d3144cb91960c8fc3f932c781d112
SHA1 e4a23638662ab245092944f3b76345b11beffdbe
SHA512 a7b23c9c83cccf8b9495b17d25f8f57caafc69f1676462a154ff021baf9379e042e3f80abfbbaa2f1f791713866d29b168be2c9d5a8b05a2069d9159d7212712
SSDEEP 24576:iBaInCIPCsINKuDHssLjjoZJIlZnxsDDzZCkc7J3Dd4N5ZJ7B4VCFUP0c7Y2WAHp:7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

adware discovery execution formbook rat spyware stealer trojan

Malware Config

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 8 IoCs

rat

resource	yara_rule
behavioral1/memory/5484-15-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral1/memory/5484-17-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral1/memory/5484-18-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral1/memory/5484-22-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral1/memory/3128-25-0x0000000000180000-0x00000000001C5000-memory.dmp	family_formbook
behavioral1/memory/3128-29-0x0000000000180000-0x00000000001C5000-memory.dmp	family_formbook
behavioral1/memory/5616-33-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral1/memory/3952-43-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook

Badlisted process makes network request 14 IoCs

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

flow	pid	Process
32	4244	powershell.exe
39	4244	powershell.exe
40	4244	powershell.exe
41	4244	powershell.exe
42	4244	powershell.exe
43	4244	powershell.exe
45	4244	powershell.exe
46	4244	powershell.exe
47	4244	powershell.exe
52	4244	powershell.exe
53	4244	powershell.exe
55	4244	powershell.exe
55	4244	powershell.exe
55	4244	powershell.exe

Suspicious use of SetThreadContext 15 IoCs

description	pid	Process	procid_target
PID 4244 set thread context of 5484	4244	powershell.exe	94
PID 5484 set thread context of 4244	5484	aspnet_compiler.exe	81
PID 5484 set thread context of 3128	5484	aspnet_compiler.exe	95
PID 4244 set thread context of 5616	4244	powershell.exe	96
PID 3128 set thread context of 4244	3128	userinit.exe	81
PID 4244 set thread context of 3952	4244	powershell.exe	104
PID 3128 set thread context of 5692	3128	userinit.exe	105
PID 4244 set thread context of 3956	4244	powershell.exe	106
PID 3128 set thread context of 5532	3128	userinit.exe	107
PID 4244 set thread context of 4996	4244	powershell.exe	108
PID 4244 set thread context of 4692	4244	powershell.exe	109
PID 4244 set thread context of 3260	4244	powershell.exe	110
PID 4244 set thread context of 1572	4244	powershell.exe	112
PID 4244 set thread context of 5012	4244	powershell.exe	113
PID 4244 set thread context of 6084	4244	powershell.exe	115

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4244	powershell.exe

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	userinit.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1919182765-2457925700-1517026611-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	userinit.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
5484	aspnet_compiler.exe
4244	powershell.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
5616	aspnet_compiler.exe
5616	aspnet_compiler.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
3952	aspnet_compiler.exe
3952	aspnet_compiler.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
3956	aspnet_compiler.exe
3956	aspnet_compiler.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
4996	aspnet_compiler.exe
4996	aspnet_compiler.exe
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
5484	aspnet_compiler.exe
4244	powershell.exe
4244	powershell.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe
3128	userinit.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	powershell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 1940	4244	powershell.exe	88
PID 4244 wrote to memory of 1940	4244	powershell.exe	88
PID 4244 wrote to memory of 1940	4244	powershell.exe	88
PID 4244 wrote to memory of 5528	4244	powershell.exe	89
PID 4244 wrote to memory of 5528	4244	powershell.exe	89
PID 4244 wrote to memory of 5528	4244	powershell.exe	89
PID 4244 wrote to memory of 5344	4244	powershell.exe	90
PID 4244 wrote to memory of 5344	4244	powershell.exe	90
PID 4244 wrote to memory of 5344	4244	powershell.exe	90
PID 4244 wrote to memory of 1944	4244	powershell.exe	91
PID 4244 wrote to memory of 1944	4244	powershell.exe	91
PID 4244 wrote to memory of 1944	4244	powershell.exe	91
PID 4244 wrote to memory of 5992	4244	powershell.exe	92
PID 4244 wrote to memory of 5992	4244	powershell.exe	92
PID 4244 wrote to memory of 5992	4244	powershell.exe	92
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 5484	4244	powershell.exe	94
PID 4244 wrote to memory of 3128	4244	powershell.exe	95
PID 4244 wrote to memory of 3128	4244	powershell.exe	95
PID 4244 wrote to memory of 3128	4244	powershell.exe	95
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 5616	4244	powershell.exe	96
PID 4244 wrote to memory of 3864	4244	powershell.exe	100
PID 4244 wrote to memory of 3864	4244	powershell.exe	100
PID 4244 wrote to memory of 3864	4244	powershell.exe	100
PID 4244 wrote to memory of 3924	4244	powershell.exe	101
PID 4244 wrote to memory of 3924	4244	powershell.exe	101
PID 4244 wrote to memory of 3924	4244	powershell.exe	101
PID 4244 wrote to memory of 5136	4244	powershell.exe	102
PID 4244 wrote to memory of 5136	4244	powershell.exe	102
PID 4244 wrote to memory of 5136	4244	powershell.exe	102
PID 4244 wrote to memory of 3760	4244	powershell.exe	103
PID 4244 wrote to memory of 3760	4244	powershell.exe	103
PID 4244 wrote to memory of 3760	4244	powershell.exe	103
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 4244 wrote to memory of 3952	4244	powershell.exe	104
PID 3128 wrote to memory of 5692	3128	userinit.exe	105
PID 3128 wrote to memory of 5692	3128	userinit.exe	105
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 4244 wrote to memory of 3956	4244	powershell.exe	106
PID 3128 wrote to memory of 5532	3128	userinit.exe	107
PID 3128 wrote to memory of 5532	3128	userinit.exe	107
PID 4244 wrote to memory of 4996	4244	powershell.exe	108
PID 4244 wrote to memory of 4996	4244	powershell.exe	108
PID 4244 wrote to memory of 4996	4244	powershell.exe	108
PID 4244 wrote to memory of 4996	4244	powershell.exe	108
PID 4244 wrote to memory of 4996	4244	powershell.exe	108
PID 4244 wrote to memory of 4996	4244	powershell.exe	108

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\slynewbin.ps1
1⤵
- Badlisted process makes network request
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4244
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1940
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5344
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1944
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5992
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:5484
- C:\Windows\SysWOW64\userinit.exe
  "C:\Windows\SysWOW64\userinit.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:3128
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5692
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:5532
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3864
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3924
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5136
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3760
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3952
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4996
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:4692
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3260
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5384
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1572
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5012
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:4920
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:6084

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

__PSScriptPolicyTest_uuyegern.asr.ps1

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

Submit Download

memory/3128-24-0x00000000009F0000-0x0000000000D3A000-memory.dmp

Download

memory/3128-27-0x0000000000DF0000-0x0000000000E93000-memory.dmp

Download

memory/3128-21-0x0000000000180000-0x00000000001C5000-memory.dmp

Download

memory/3128-20-0x0000000000180000-0x00000000001C5000-memory.dmp

Download

memory/3128-29-0x0000000000180000-0x00000000001C5000-memory.dmp

Download

memory/3128-25-0x0000000000180000-0x00000000001C5000-memory.dmp

Download

memory/3952-36-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/3952-43-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/4244-14-0x000001AA73A40000-0x000001AA73A50000-memory.dmp

Download

memory/4244-34-0x000001AA75180000-0x000001AA75274000-memory.dmp

Download

memory/4244-30-0x000001AA75180000-0x000001AA75274000-memory.dmp

Download

memory/4244-28-0x000001AA75180000-0x000001AA75274000-memory.dmp

Download

memory/4244-13-0x000001AA73A40000-0x000001AA73A50000-memory.dmp

Download

memory/4244-12-0x000001AA73A40000-0x000001AA73A50000-memory.dmp

Download

memory/4244-10-0x000001AA73970000-0x000001AA73980000-memory.dmp

Download

memory/4244-0-0x000001AA73A40000-0x000001AA73A50000-memory.dmp

Download

memory/4244-9-0x000001AA73A40000-0x000001AA73A50000-memory.dmp

Download

memory/4244-1-0x000001AA73980000-0x000001AA739A2000-memory.dmp

Download

memory/5484-23-0x0000000000E50000-0x0000000000E74000-memory.dmp

Download

memory/5484-22-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5484-18-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5484-19-0x0000000000E50000-0x0000000000E74000-memory.dmp

Download

memory/5484-17-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5484-16-0x00000000012D0000-0x000000000161A000-memory.dmp

Download

memory/5484-15-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5484-11-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5532-46-0x000001F55CBE0000-0x000001F55CCD5000-memory.dmp

Download

memory/5616-31-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5616-32-0x0000000000EF0000-0x000000000123A000-memory.dmp

Download

memory/5616-33-0x0000000000400000-0x0000000000448000-memory.dmp

Download

memory/5692-42-0x0000021E513D0000-0x0000021E5149A000-memory.dmp

Download