formbook | ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4

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
06/11/2025, 11:21

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General

Target
d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe
Size 1.2MB
Sample251106-nf6sbsam21
SHA256 ea03b1c2d2aa3ec74bf4194c7f623670e13df20b4bfdaae11f2e8604521f77e4
MD5 d30e1c2cf252b4ed2b9e325bda40b81c
SHA1 4a4b8f0848470066cbd9043f45f0506f1779c950
SHA512 d8b3f460410cb15b94dd0f7c1fd77a8d234cd213b525da59209ea8ed1f1623f63d3da1778417282ab42e27d6e92976ff26fe3e6cf4465ff8865f6c682b44c727
SSDEEP 24576:C5EmXFtKaL4/oFe5T9yyXYfP1MAXDzECzKNWsre37/NbA+SQu:CPVt/LZeJbInGizEzAT/i+
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
behavioral1/memory/2452-17-0x0000000000400000-0x0000000000448000-memory.dmp	family_formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/4448-0-0x0000000000B30000-0x0000000000C65000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4448 set thread context of 2452	4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe	87

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	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe
4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe
4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4448 wrote to memory of 2452	4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe	87
PID 4448 wrote to memory of 2452	4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe	87
PID 4448 wrote to memory of 2452	4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe	87
PID 4448 wrote to memory of 2452	4448	d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe	87

C:\Users\Admin\AppData\Local\Temp\d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe
"C:\Users\Admin\AppData\Local\Temp\d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4448
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\d03d5c962c99335e1ca1701937074be95c015d8f7cf37828c178b35acbd99309.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2452

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

Replay Monitor

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Downloads

aut7ABF.tmp

Path C:\Users\Admin\AppData\Local\Temp\aut7ABF.tmp
Size 286KB
SHA256 ccbcb8fedc5a1315dc909b8a2272a47031efa8bfbfe13707bad42401cda4b632
MD5 97472fcebe7afca9db34cdcc61cd7ed9
SHA1 1217709814f8f1606c3e0aaf1e7931b23abb1f29
SHA512 3dbd6313c751a7dda93c0b80a80a488be1560fc73556d65263137f4b1360cd7ad8fc90f3cfa6abb58e2e1e605bece36da3fc09511fed8948578172091a8b9e4e
SSDEEP 6144:LuhDWY2xyQTgjUvf3JklqKb1wxUkYCyZqbBtO6Dlp6PM:Cp2wQwUXJkA9yZqfhGPM
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2452-14-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/2452-15-0x0000000001800000-0x0000000001B4A000-memory.dmp

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memory/2452-16-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/2452-17-0x0000000000400000-0x0000000000448000-memory.dmp

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memory/4448-0-0x0000000000B30000-0x0000000000C65000-memory.dmp

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memory/4448-13-0x0000000001290000-0x0000000001690000-memory.dmp

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