formbook | f8638f083c98bd295705f0e563077726a72ef319635d4211e84df369cec98230

Analysis

max time kernel
104s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20250610-en
resource tags

arch:x64arch:x86image:win10v2004-20250610-enlocale:en-usos:windows10-2004-x64system
submitted
18/07/2025, 09:43

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
Enquiry 1525.exe
Size 749KB
Sample250718-lp49raywas
SHA256 50bee81de3e9e73ef381e154620e5e81a3e8aa2d62ae88efca8e56d27feaf1a0
MD5 d3d40a99751c1f6b3c90efb533adf324
SHA1 11d2bc3713ed2c7f758f652f8dfbf3faaf7b21f5
SHA512 e28c40caaee931f668b5a17f7835c89b665fed671bb6c57f2dff41970215948e33526e9bfd88a8af0b7e30ee3d5cafe597082ed46d6ee80993dd753b29d2fd5f
SSDEEP 12288:VSHfLPHe/8XuRHfZbHb+cRKBjrjX1PYdwNhUy9ScuV3HBTk1/vMlb+:VwfjHe/hHfNHbkVrRgdwNhF9Sc4xY1Uy
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook discovery 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/5060-13-0x0000000000400000-0x0000000000449000-memory.dmp	family_formbook

SmartAssembly .NET packer 1 IoCs

Detects SmartAssembly .NET packer.

resource	yara_rule
behavioral1/memory/5824-6-0x0000000004E90000-0x0000000004EA4000-memory.dmp	SmartAssembly

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5824 set thread context of 5060	5824	Enquiry 1525.exe	98

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	Enquiry 1525.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
5824	Enquiry 1525.exe
5824	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe
5060	Enquiry 1525.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5824	Enquiry 1525.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5824 wrote to memory of 5048	5824	Enquiry 1525.exe	97
PID 5824 wrote to memory of 5048	5824	Enquiry 1525.exe	97
PID 5824 wrote to memory of 5048	5824	Enquiry 1525.exe	97
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98
PID 5824 wrote to memory of 5060	5824	Enquiry 1525.exe	98

C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe
"C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5824
- C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe
  "C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe"
  2⤵
  PID:5048
- C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe
  "C:\Users\Admin\AppData\Local\Temp\Enquiry 1525.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5060

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

Loading Replay Monitor...

Downloads

memory/5060-9-0x0000000000400000-0x0000000000449000-memory.dmp

Download

memory/5060-13-0x0000000000400000-0x0000000000449000-memory.dmp

Download

memory/5060-12-0x0000000001A30000-0x0000000001D7A000-memory.dmp

Download

memory/5060-11-0x0000000000400000-0x0000000000449000-memory.dmp

Download

memory/5824-3-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Download

memory/5824-5-0x0000000004B10000-0x0000000004BAC000-memory.dmp

Download

memory/5824-6-0x0000000004E90000-0x0000000004EA4000-memory.dmp

Download

memory/5824-7-0x0000000004BE0000-0x0000000004BF0000-memory.dmp

Download

memory/5824-8-0x0000000006390000-0x0000000006424000-memory.dmp

Download

memory/5824-4-0x00000000049A0000-0x00000000049AA000-memory.dmp

Download

memory/5824-0-0x0000000000030000-0x00000000000F2000-memory.dmp

Download

memory/5824-2-0x00000000049B0000-0x0000000004A42000-memory.dmp

Download

memory/5824-1-0x0000000004EC0000-0x0000000005464000-memory.dmp

Download