formbook | 3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f

Analysis

max time kernel
146s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 04:20

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General

Target

3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
Size

1.1MB
MD5

2dcf6ba3617009251149bf80ff92ae04
SHA1

5e20666eeb55bc5125a73c61481b0999b1030b63
SHA256

3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f
SHA512

502eee3c93e6daa4b65da5cd0ad4a3b2b93b6e05c7ed5a557151cdc9c5316c9bdb7395b01b46e5ec59793619bf5a0452c42efecb9fb8f6897653addfef8ed164
SSDEEP

24576:YqDEvCTbMWu7rQYlBQcBiT6rprG8ac59xpJtvf:YTvC/MTQYxsWR7acDxpJZ

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/2128-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2128-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2128-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1348-22-0x00000000012E0000-0x000000000130F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4904 set thread context of 2128	4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	83
PID 2128 set thread context of 3544	2128	svchost.exe	56
PID 2128 set thread context of 3544	2128	svchost.exe	56
PID 1348 set thread context of 3544	1348	wlanext.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	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe
1348	wlanext.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
2128	svchost.exe
1348	wlanext.exe
1348	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	svchost.exe
Token: SeDebugPrivilege	1348	wlanext.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 2128	4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	83
PID 4904 wrote to memory of 2128	4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	83
PID 4904 wrote to memory of 2128	4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	83
PID 4904 wrote to memory of 2128	4904	3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe	83
PID 2128 wrote to memory of 1348	2128	svchost.exe	93
PID 2128 wrote to memory of 1348	2128	svchost.exe	93
PID 2128 wrote to memory of 1348	2128	svchost.exe	93
PID 1348 wrote to memory of 3536	1348	wlanext.exe	94
PID 1348 wrote to memory of 3536	1348	wlanext.exe	94
PID 1348 wrote to memory of 3536	1348	wlanext.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3544
- C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.exe
  "C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.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:4904
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\3640c9b3dc4bc344424c63f9511b4ce997b08a4e67ddd55791c60b1875e19c7f.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:2128
  - - C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.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:1348
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Windows\SysWOW64\svchost.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3536

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

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Downloads

memory/1348-20-0x0000000000230000-0x0000000000247000-memory.dmp

Filesize
92KB

Download
memory/1348-22-0x00000000012E0000-0x000000000130F000-memory.dmp

Filesize
188KB

Download
memory/1348-18-0x0000000000230000-0x0000000000247000-memory.dmp

Filesize
92KB

Download
memory/2128-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2128-11-0x0000000001D60000-0x0000000001D75000-memory.dmp

Filesize
84KB

Download
memory/2128-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2128-8-0x0000000001900000-0x0000000001C4A000-memory.dmp

Filesize
3.3MB

Download
memory/2128-15-0x0000000003720000-0x0000000003735000-memory.dmp

Filesize
84KB

Download
memory/2128-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3544-17-0x0000000003420000-0x0000000003502000-memory.dmp

Filesize
904KB

Download
memory/3544-16-0x00000000092F0000-0x0000000009493000-memory.dmp

Filesize
1.6MB

Download
memory/3544-21-0x00000000092F0000-0x0000000009493000-memory.dmp

Filesize
1.6MB

Download
memory/3544-12-0x0000000003420000-0x0000000003502000-memory.dmp

Filesize
904KB

Download
memory/3544-25-0x0000000009990000-0x0000000009AB3000-memory.dmp

Filesize
1.1MB

Download
memory/3544-26-0x0000000009990000-0x0000000009AB3000-memory.dmp

Filesize
1.1MB

Download
memory/3544-28-0x0000000009990000-0x0000000009AB3000-memory.dmp

Filesize
1.1MB

Download
memory/4904-6-0x0000000001510000-0x0000000001910000-memory.dmp

Filesize
4.0MB

Download