formbook | 2a2b4598b2a424bba1b0f6e1f3837e1268d210291b22e52f67ee6b6c62a95f11

Analysis

max time kernel
149s
max time network
146s
platform
windows11-21h2_x64
resource
win11-20251015-en
resource tags

arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-x64system
submitted
23/10/2025, 00:56

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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 6 IoCs

rat

resource	yara_rule
behavioral2/memory/5052-15-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral2/memory/5052-17-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral2/memory/5052-18-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral2/memory/5052-22-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook
behavioral2/memory/3172-25-0x0000000000960000-0x00000000009A5000-memory.dmp	family_formbook
behavioral2/memory/4800-33-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook

Badlisted process makes network request 21 IoCs

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

flow	pid	Process
23	5884	PowerShell.exe
30	5884	PowerShell.exe
31	5884	PowerShell.exe
32	5884	PowerShell.exe
34	5884	PowerShell.exe
35	5884	PowerShell.exe
36	5884	PowerShell.exe
38	5884	PowerShell.exe
39	5884	PowerShell.exe
40	5884	PowerShell.exe
41	5884	PowerShell.exe
42	5884	PowerShell.exe
43	5884	PowerShell.exe
44	5884	PowerShell.exe
45	5884	PowerShell.exe
46	5884	PowerShell.exe
47	5884	PowerShell.exe
48	5884	PowerShell.exe
49	5884	PowerShell.exe
50	5884	PowerShell.exe
51	5884	PowerShell.exe

Suspicious use of SetThreadContext 16 IoCs

description	pid	Process	procid_target
PID 5884 set thread context of 5052	5884	PowerShell.exe	88
PID 5052 set thread context of 5884	5052	aspnet_compiler.exe	78
PID 5052 set thread context of 3172	5052	aspnet_compiler.exe	89
PID 5884 set thread context of 4800	5884	PowerShell.exe	90
PID 3172 set thread context of 5884	3172	userinit.exe	78
PID 5884 set thread context of 236	5884	PowerShell.exe	98
PID 3172 set thread context of 5820	3172	userinit.exe	97
PID 5884 set thread context of 5880	5884	PowerShell.exe	101
PID 3172 set thread context of 5876	3172	userinit.exe	100
PID 5884 set thread context of 3176	5884	PowerShell.exe	104
PID 3172 set thread context of 5624	3172	userinit.exe	103
PID 5884 set thread context of 3980	5884	PowerShell.exe	105
PID 5884 set thread context of 5672	5884	PowerShell.exe	107
PID 5884 set thread context of 3888	5884	PowerShell.exe	108
PID 5884 set thread context of 432	5884	PowerShell.exe	109
PID 5884 set thread context of 1248	5884	PowerShell.exe	112

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
5884	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-1-5-21-1811515719-224358676-1950738906-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	userinit.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5052	aspnet_compiler.exe
5884	PowerShell.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
4800	aspnet_compiler.exe
4800	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
236	aspnet_compiler.exe
236	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5880	aspnet_compiler.exe
5880	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
3176	aspnet_compiler.exe
3176	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
3980	aspnet_compiler.exe
3980	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
5884	PowerShell.exe
5672	aspnet_compiler.exe
5672	aspnet_compiler.exe
5884	PowerShell.exe

Suspicious behavior: MapViewOfSection 11 IoCs

pid	Process
5052	aspnet_compiler.exe
5884	PowerShell.exe
5884	PowerShell.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe
3172	userinit.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5884	PowerShell.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5884 wrote to memory of 3536	5884	PowerShell.exe	83
PID 5884 wrote to memory of 3536	5884	PowerShell.exe	83
PID 5884 wrote to memory of 3536	5884	PowerShell.exe	83
PID 5884 wrote to memory of 2812	5884	PowerShell.exe	84
PID 5884 wrote to memory of 2812	5884	PowerShell.exe	84
PID 5884 wrote to memory of 2812	5884	PowerShell.exe	84
PID 5884 wrote to memory of 1348	5884	PowerShell.exe	85
PID 5884 wrote to memory of 1348	5884	PowerShell.exe	85
PID 5884 wrote to memory of 1348	5884	PowerShell.exe	85
PID 5884 wrote to memory of 4416	5884	PowerShell.exe	86
PID 5884 wrote to memory of 4416	5884	PowerShell.exe	86
PID 5884 wrote to memory of 4416	5884	PowerShell.exe	86
PID 5884 wrote to memory of 3632	5884	PowerShell.exe	87
PID 5884 wrote to memory of 3632	5884	PowerShell.exe	87
PID 5884 wrote to memory of 3632	5884	PowerShell.exe	87
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 5052	5884	PowerShell.exe	88
PID 5884 wrote to memory of 3172	5884	PowerShell.exe	89
PID 5884 wrote to memory of 3172	5884	PowerShell.exe	89
PID 5884 wrote to memory of 3172	5884	PowerShell.exe	89
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 5884 wrote to memory of 4800	5884	PowerShell.exe	90
PID 3172 wrote to memory of 5820	3172	userinit.exe	97
PID 3172 wrote to memory of 5820	3172	userinit.exe	97
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 5884 wrote to memory of 236	5884	PowerShell.exe	98
PID 3172 wrote to memory of 5876	3172	userinit.exe	100
PID 3172 wrote to memory of 5876	3172	userinit.exe	100
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 5884 wrote to memory of 5880	5884	PowerShell.exe	101
PID 3172 wrote to memory of 5624	3172	userinit.exe	103
PID 3172 wrote to memory of 5624	3172	userinit.exe	103
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3176	5884	PowerShell.exe	104
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 3980	5884	PowerShell.exe	105
PID 5884 wrote to memory of 5672	5884	PowerShell.exe	107
PID 5884 wrote to memory of 5672	5884	PowerShell.exe	107
PID 5884 wrote to memory of 5672	5884	PowerShell.exe	107
PID 5884 wrote to memory of 5672	5884	PowerShell.exe	107

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:5884
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3536
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:2812
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1348
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:4416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3632
- 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:5052
- 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:3172
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:5820
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
    3⤵
    PID:5876
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:5624
- 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:4800
- 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:236
- 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:5880
- 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:3176
- 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:3980
- 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:5672
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3888
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:432
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:5292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1248

C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"
1⤵
PID:336

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

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Downloads

__PSScriptPolicyTest_dshonzkp.ob4.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dshonzkp.ob4.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/3172-28-0x0000000000960000-0x00000000009A5000-memory.dmp

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memory/3172-25-0x0000000000960000-0x00000000009A5000-memory.dmp

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memory/3172-24-0x0000000001360000-0x00000000016B6000-memory.dmp

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memory/3172-21-0x0000000000960000-0x00000000009A5000-memory.dmp

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memory/3172-27-0x00000000012B0000-0x0000000001353000-memory.dmp

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memory/3172-20-0x0000000000960000-0x00000000009A5000-memory.dmp

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memory/4800-33-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/4800-31-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/4800-32-0x00000000013A0000-0x00000000016F6000-memory.dmp

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memory/5052-18-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/5052-16-0x0000000001850000-0x0000000001BA6000-memory.dmp

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memory/5052-17-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/5052-19-0x00000000017C0000-0x00000000017E4000-memory.dmp

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memory/5052-15-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/5052-11-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/5052-23-0x00000000017C0000-0x00000000017E4000-memory.dmp

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memory/5052-22-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/5624-46-0x000001EF27D00000-0x000001EF27DBE000-memory.dmp

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memory/5820-39-0x000001C8EB150000-0x000001C8EB254000-memory.dmp

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memory/5876-43-0x000001F043F90000-0x000001F04405C000-memory.dmp

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memory/5884-13-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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memory/5884-29-0x000001DB2A560000-0x000001DB2A683000-memory.dmp

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memory/5884-14-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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memory/5884-30-0x000001DB2A560000-0x000001DB2A683000-memory.dmp

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memory/5884-0-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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memory/5884-12-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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memory/5884-10-0x000001DB2A2B0000-0x000001DB2A2C0000-memory.dmp

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memory/5884-34-0x000001DB2A560000-0x000001DB2A683000-memory.dmp

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memory/5884-9-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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memory/5884-8-0x000001DB2A280000-0x000001DB2A2A2000-memory.dmp

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memory/5884-1-0x000001DB2A2C0000-0x000001DB2A2D0000-memory.dmp

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