formbook | fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 06:06

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
Size

1.1MB
MD5

1ce360f7532eeff6b69b01a1f59cbbad
SHA1

1d4497e3469dff17d05be582a07ae8bce1072de7
SHA256

fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a
SHA512

90d8c8268fd8703c61fc1a27b4cbb705af40f7b30498bd21b661f198dab1a77e0e15e9b259b1e75235a1d68eb94138eeca73d5cce3bf96ae0b5884c9c74d956f
SSDEEP

24576:AqDEvCTbMWu7rQYlBQcBiT6rprG8aJA9Um9EJolTJyY3BoUp:ATvC/MTQYxsWR7aJ6Uuo0TJHx

Score

10^/10

formbook at22 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

at22

Decoy

etween-us.online

sphaleia.net

ental-implants-78350.bond

q4a.lat

commerce-97292.bond

linds-curtains-38811.bond

gyptevoyages.net

landofigueroa-abogados.net

cuitis.xyz

hantom.city

yzk.online

afikabmedan.store

ome-remodeling-67289.bond

ebpage-klzdxrhnazi.shop

eject.lol

rismart.xyz

nfluencer-marketing-72407.bond

ksolotl.xyz

ebsbayrntilrmizin93.xyz

pps-75399.bond

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4344-7-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook
behavioral2/memory/4344-11-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook
behavioral2/memory/4344-15-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook
behavioral2/memory/4920-23-0x00000000012B0000-0x00000000012DF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4208 set thread context of 4344	4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe	82
PID 4344 set thread context of 3488	4344	svchost.exe	56
PID 4344 set thread context of 3488	4344	svchost.exe	56
PID 4920 set thread context of 3488	4920	mstsc.exe	56

System Location Discovery: System Language Discovery 1 TTPs 4 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe
4920	mstsc.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4344	svchost.exe
4920	mstsc.exe
4920	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4344	svchost.exe
Token: SeDebugPrivilege	4920	mstsc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 4344	4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe	82
PID 4208 wrote to memory of 4344	4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe	82
PID 4208 wrote to memory of 4344	4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe	82
PID 4208 wrote to memory of 4344	4208	fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe	82
PID 4344 wrote to memory of 4920	4344	svchost.exe	90
PID 4344 wrote to memory of 4920	4344	svchost.exe	90
PID 4344 wrote to memory of 4920	4344	svchost.exe	90
PID 4920 wrote to memory of 5060	4920	mstsc.exe	91
PID 4920 wrote to memory of 5060	4920	mstsc.exe	91
PID 4920 wrote to memory of 5060	4920	mstsc.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3488
- C:\Users\Admin\AppData\Local\Temp\fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe
  "C:\Users\Admin\AppData\Local\Temp\fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe"
  2⤵
  - 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:4208
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\fb950137c6cdd6106f6a642ffa4c8073c067b2cf8a057802415310cf24f6fc8a.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4344
  - - C:\Windows\SysWOW64\mstsc.exe
      "C:\Windows\SysWOW64\mstsc.exe"
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4920
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:5060

Network

MITRE ATT&CK Enterprise v15

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/3488-18-0x0000000002F70000-0x00000000030F8000-memory.dmp

Filesize
1.5MB

Download
memory/3488-29-0x00000000084A0000-0x00000000085A1000-memory.dmp

Filesize
1.0MB

Download
memory/3488-27-0x00000000084A0000-0x00000000085A1000-memory.dmp

Filesize
1.0MB

Download
memory/3488-26-0x00000000084A0000-0x00000000085A1000-memory.dmp

Filesize
1.0MB

Download
memory/3488-13-0x0000000002F70000-0x00000000030F8000-memory.dmp

Filesize
1.5MB

Download
memory/3488-17-0x0000000008A20000-0x0000000008B88000-memory.dmp

Filesize
1.4MB

Download
memory/3488-22-0x0000000008A20000-0x0000000008B88000-memory.dmp

Filesize
1.4MB

Download
memory/4208-6-0x0000000001470000-0x0000000001870000-memory.dmp

Filesize
4.0MB

Download
memory/4344-11-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/4344-15-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/4344-16-0x0000000000E40000-0x0000000000E55000-memory.dmp

Filesize
84KB

Download
memory/4344-12-0x0000000000DE0000-0x0000000000DF5000-memory.dmp

Filesize
84KB

Download
memory/4344-10-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/4344-7-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/4920-19-0x0000000000900000-0x0000000000A3A000-memory.dmp

Filesize
1.2MB

Download
memory/4920-21-0x0000000000900000-0x0000000000A3A000-memory.dmp

Filesize
1.2MB

Download
memory/4920-23-0x00000000012B0000-0x00000000012DF000-memory.dmp

Filesize
188KB

Download