formbook | 0899d3894338f52e9c7108e34d49e9b99fd9f6d78536cacedca6c1c90a9fdf58

Resubmissions

15-11-2024 11:09

241115-m89t1ssmgw 10

15-11-2024 07:54

241115-jrjdys1dph 10

Analysis

max time kernel
148s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-11-2024 07:54

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General

Target

Transfer of rights and privilege.exe
Size

1.1MB
MD5

fa91a7463a9ea4918102bccaa035dac1
SHA1

eb1e162fc866d77e6ca4f68c464e4793a9013094
SHA256

e5eda013173004830010766af13273e9ee2b96c0c63628a531945e4e8c0da884
SHA512

a40959b205039c308f3bc396bd86d060da71938d1199b1000837fd1037e01dcd9a530ad7083ab4f66458c3772b64fe27cd372fcc747fa6e931ec4393a38d3cc4
SSDEEP

24576:Dtb20pkaCqT5TBWgNQ7ayLWZ2KbH1EhzJ9OPR7z6A:AVg5tQ7ayLWZ2KOJIRP5

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/2612-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2612-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3064-15-0x0000000000580000-0x00000000005AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2708 set thread context of 2612	2708	Transfer of rights and privilege.exe	86
PID 2612 set thread context of 3452	2612	svchost.exe	56
PID 3064 set thread context of 3452	3064	wscript.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1536	2708	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 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	Transfer of rights and privilege.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe
3064	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2708	Transfer of rights and privilege.exe
2612	svchost.exe
2612	svchost.exe
2612	svchost.exe
3064	wscript.exe
3064	wscript.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2612	svchost.exe
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeShutdownPrivilege	3452	Explorer.EXE
Token: SeCreatePagefilePrivilege	3452	Explorer.EXE
Token: SeDebugPrivilege	3064	wscript.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3452	Explorer.EXE
3452	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3452	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 2612	2708	Transfer of rights and privilege.exe	86
PID 2708 wrote to memory of 2612	2708	Transfer of rights and privilege.exe	86
PID 2708 wrote to memory of 2612	2708	Transfer of rights and privilege.exe	86
PID 2708 wrote to memory of 2612	2708	Transfer of rights and privilege.exe	86
PID 3452 wrote to memory of 3064	3452	Explorer.EXE	91
PID 3452 wrote to memory of 3064	3452	Explorer.EXE	91
PID 3452 wrote to memory of 3064	3452	Explorer.EXE	91
PID 3064 wrote to memory of 664	3064	wscript.exe	97
PID 3064 wrote to memory of 664	3064	wscript.exe	97
PID 3064 wrote to memory of 664	3064	wscript.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Users\Admin\AppData\Local\Temp\Transfer of rights and privilege.exe
  "C:\Users\Admin\AppData\Local\Temp\Transfer of rights and privilege.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Transfer of rights and privilege.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2612
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2708 -s 652
    3⤵
    - Program crash
    PID:1536
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1060
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - 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:3064
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2708 -ip 2708
1⤵
PID:3004

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

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Downloads

memory/2612-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2612-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2612-8-0x0000000001000000-0x000000000134A000-memory.dmp

Filesize
3.3MB

Download
memory/2612-11-0x0000000000F00000-0x0000000000F14000-memory.dmp

Filesize
80KB

Download
memory/2708-6-0x0000000000CC0000-0x00000000010C0000-memory.dmp

Filesize
4.0MB

Download
memory/3064-13-0x00000000003F0000-0x0000000000417000-memory.dmp

Filesize
156KB

Download
memory/3064-14-0x00000000003F0000-0x0000000000417000-memory.dmp

Filesize
156KB

Download
memory/3064-15-0x0000000000580000-0x00000000005AF000-memory.dmp

Filesize
188KB

Download
memory/3452-12-0x0000000006BB0000-0x0000000006C6A000-memory.dmp

Filesize
744KB

Download
memory/3452-16-0x0000000006BB0000-0x0000000006C6A000-memory.dmp

Filesize
744KB

Download
memory/3452-19-0x0000000008690000-0x0000000008744000-memory.dmp

Filesize
720KB

Download
memory/3452-21-0x0000000008690000-0x0000000008744000-memory.dmp

Filesize
720KB

Download
memory/3452-22-0x0000000008690000-0x0000000008744000-memory.dmp

Filesize
720KB

Download