formbook | 7f6e3386bf352d8d9c0ff3868a8a71bf0d15628789956b443e6ba630e4acf5e2

Analysis

max time kernel
147s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2024 07:08

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General

Target

Invoice -BF.exe
Size

1.1MB
MD5

a574d8e90f0174f5fe30edb676b9f106
SHA1

e5a008bf01cf36c343fc9d90fc8d728524e33fe5
SHA256

d2c3ec17a82adc64cbf865b806ea8df48efcee31a55e5ee6e61de3dccbbcf6bf
SHA512

04653911205ec9f3c093ac6640cfcd42ef9cd45924c6536d7bf721db672d4459a24c79bfb9771165d2a80cbcf613ca3fd7e481360a0c3498d8c2b33b711ce532
SSDEEP

24576:0tb20pkaCqT5TBWgNQ7ap4hb3i8jR16n6A:dVg5tQ7apijs5

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

Processes:

resource	yara_rule
behavioral2/memory/1328-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1328-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2272-15-0x0000000000C80000-0x0000000000CAF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Invoice -BF.exesvchost.exesystray.exe

description	pid	Process	procid_target
PID 3052 set thread context of 1328	3052	Invoice -BF.exe	83
PID 1328 set thread context of 3444	1328	svchost.exe	56
PID 2272 set thread context of 3444	2272	systray.exe	56

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

Processes:

Invoice -BF.exesystray.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice -BF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exesystray.exe

pid	Process
1328	svchost.exe
1328	svchost.exe
1328	svchost.exe
1328	svchost.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe
2272	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Invoice -BF.exesvchost.exesystray.exe

pid	Process
3052	Invoice -BF.exe
1328	svchost.exe
1328	svchost.exe
1328	svchost.exe
2272	systray.exe
2272	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exesystray.exe

description	pid	Process
Token: SeDebugPrivilege	1328	svchost.exe
Token: SeDebugPrivilege	2272	systray.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Invoice -BF.exe

pid	Process
3052	Invoice -BF.exe
3052	Invoice -BF.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Invoice -BF.exe

pid	Process
3052	Invoice -BF.exe
3052	Invoice -BF.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Invoice -BF.exeExplorer.EXEsystray.exe

description	pid	Process	procid_target
PID 3052 wrote to memory of 1328	3052	Invoice -BF.exe	83
PID 3052 wrote to memory of 1328	3052	Invoice -BF.exe	83
PID 3052 wrote to memory of 1328	3052	Invoice -BF.exe	83
PID 3052 wrote to memory of 1328	3052	Invoice -BF.exe	83
PID 3444 wrote to memory of 2272	3444	Explorer.EXE	85
PID 3444 wrote to memory of 2272	3444	Explorer.EXE	85
PID 3444 wrote to memory of 2272	3444	Explorer.EXE	85
PID 2272 wrote to memory of 3676	2272	systray.exe	93
PID 2272 wrote to memory of 3676	2272	systray.exe	93
PID 2272 wrote to memory of 3676	2272	systray.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\Invoice -BF.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice -BF.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:3052
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice -BF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1328
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:3100
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2272
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3676

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/1328-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1328-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1328-8-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/1328-11-0x0000000001CD0000-0x0000000001CE4000-memory.dmp

Filesize
80KB

Download
memory/2272-13-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download
memory/2272-14-0x0000000000FB0000-0x0000000000FB6000-memory.dmp

Filesize
24KB

Download
memory/2272-15-0x0000000000C80000-0x0000000000CAF000-memory.dmp

Filesize
188KB

Download
memory/3052-6-0x0000000001280000-0x0000000001680000-memory.dmp

Filesize
4.0MB

Download
memory/3444-12-0x0000000008180000-0x00000000082B8000-memory.dmp

Filesize
1.2MB

Download
memory/3444-16-0x0000000008180000-0x00000000082B8000-memory.dmp

Filesize
1.2MB

Download
memory/3444-20-0x0000000008850000-0x00000000089E3000-memory.dmp

Filesize
1.6MB

Download
memory/3444-21-0x0000000008850000-0x00000000089E3000-memory.dmp

Filesize
1.6MB

Download
memory/3444-23-0x0000000008850000-0x00000000089E3000-memory.dmp

Filesize
1.6MB

Download