formbook | 412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd

Analysis

max time kernel
102s
max time network
108s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
09/10/2025, 13:59

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General

Target
412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe
Size 759KB
Sample251009-ragg2atwey
SHA256 412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd
MD5 f1f30f216e7082600f668dd03f3b475d
SHA1 73be63cc43ca852cc9e71e5207ecc8dc0426cc4e
SHA512 b5248f00d711962f2c12a027a8d089493242e59eb54542741895c8066f324faff453b915094ced3c9ed9c16ebf9c7a392cb5d7d780e8136b48db7a12f81b0042
SSDEEP 12288:BU2hPMlJJrkSi5P99e6skVFYsrGqw5B87eSvnH2bO6Z1e6u/x7untvfhIPQvZHz:BU2hPyJdi5P9E6RYsqBBUdewB7wpfyI5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery 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 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3304-12-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3116 set thread context of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1280	3304	WerFault.exe	78

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	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3304	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe
3304	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78
PID 3116 wrote to memory of 3304	3116	412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe	78

C:\Users\Admin\AppData\Local\Temp\412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe
"C:\Users\Admin\AppData\Local\Temp\412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3116
- C:\Users\Admin\AppData\Local\Temp\412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe
  "C:\Users\Admin\AppData\Local\Temp\412fe692b6a79f5f9fa633ea35f902ceaf3c4dadd4c6f186a6efaf34cdc831bd.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3304
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3304 -s 196
    3⤵
    - Program crash
    PID:1280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3304 -ip 3304
1⤵
PID:1816

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/3116-0-0x0000000000B80000-0x0000000000C44000-memory.dmp

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memory/3116-1-0x0000000005C90000-0x0000000006236000-memory.dmp

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memory/3116-2-0x0000000005780000-0x0000000005812000-memory.dmp

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memory/3116-3-0x00000000058C0000-0x00000000058D0000-memory.dmp

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memory/3116-4-0x0000000005710000-0x000000000571A000-memory.dmp

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memory/3116-5-0x00000000059C0000-0x0000000005A5C000-memory.dmp

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memory/3116-6-0x0000000007120000-0x0000000007138000-memory.dmp

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memory/3116-7-0x00000000058C0000-0x00000000058D0000-memory.dmp

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memory/3116-8-0x0000000007190000-0x0000000007222000-memory.dmp

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memory/3304-9-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/3304-11-0x0000000000FD0000-0x0000000001326000-memory.dmp

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memory/3304-12-0x0000000000400000-0x0000000000448000-memory.dmp

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