formbook | a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 01:44

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General

Target

a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
Size

1.1MB
MD5

df6915639adaa48dad6b5cad220f1b73
SHA1

b7780024fb645196808de54fcb3d48a5581c026d
SHA256

a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db
SHA512

c6951e5781c2fe9211863d51872bd135bf9ca67bbc40c2e613642fb102103ad396167e2ab725055cdff6dcd6f2499a0b2a70ba3400602d29bcbcf0d5cabe269f
SSDEEP

24576:uqDEvCTbMWu7rQYlBQcBiT6rprG8aRo8Awaa:uTvC/MTQYxsWR7aRo8n

Score

10^/10

formbook pt46 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

pt46

Decoy

twinportslocal.com

rovor.store

98169.club

mdywl.com

jrd3s.rest

aston1717.top

floridawoodworkingmachinery.com

17tk555t.com

ankitsho.shop

seclameh.com

realrecordlabel.com

trenchonbirmingham.com

af28.top

rtp1kenzototo.com

theselflovesite.com

promotegetpaid.info

strategiclogisticsagency.com

learneracademy.net

per-watch.com

betbox2341.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1028-11-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook
behavioral2/memory/1028-15-0x00000000003A0000-0x00000000003CF000-memory.dmp	formbook
behavioral2/memory/4528-20-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5064 set thread context of 1028	5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe	87
PID 1028 set thread context of 3388	1028	svchost.exe	55
PID 4528 set thread context of 3388	4528	NETSTAT.EXE	55

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	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4528	NETSTAT.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
1028	svchost.exe
1028	svchost.exe
1028	svchost.exe
1028	svchost.exe
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE
4528	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
1028	svchost.exe
1028	svchost.exe
1028	svchost.exe
4528	NETSTAT.EXE
4528	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1028	svchost.exe
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeShutdownPrivilege	3388	Explorer.EXE
Token: SeCreatePagefilePrivilege	3388	Explorer.EXE
Token: SeDebugPrivilege	4528	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
3388	Explorer.EXE
3388	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3388	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 1028	5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe	87
PID 5064 wrote to memory of 1028	5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe	87
PID 5064 wrote to memory of 1028	5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe	87
PID 5064 wrote to memory of 1028	5064	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe	87
PID 3388 wrote to memory of 4528	3388	Explorer.EXE	88
PID 3388 wrote to memory of 4528	3388	Explorer.EXE	88
PID 3388 wrote to memory of 4528	3388	Explorer.EXE	88
PID 4528 wrote to memory of 2360	4528	NETSTAT.EXE	94
PID 4528 wrote to memory of 2360	4528	NETSTAT.EXE	94
PID 4528 wrote to memory of 2360	4528	NETSTAT.EXE	94

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:3388
- C:\Users\Admin\AppData\Local\Temp\a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe
  "C:\Users\Admin\AppData\Local\Temp\a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.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:5064
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1028
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/1028-15-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/1028-11-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/1028-14-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/1028-16-0x0000000000ED0000-0x0000000000EE4000-memory.dmp

Filesize
80KB

Download
memory/3388-21-0x0000000002FD0000-0x00000000030BB000-memory.dmp

Filesize
940KB

Download
memory/3388-17-0x0000000002FD0000-0x00000000030BB000-memory.dmp

Filesize
940KB

Download
memory/3388-25-0x0000000008D40000-0x0000000008E28000-memory.dmp

Filesize
928KB

Download
memory/3388-26-0x0000000008D40000-0x0000000008E28000-memory.dmp

Filesize
928KB

Download
memory/3388-28-0x0000000008D40000-0x0000000008E28000-memory.dmp

Filesize
928KB

Download
memory/4528-19-0x0000000000960000-0x000000000096B000-memory.dmp

Filesize
44KB

Download
memory/4528-18-0x0000000000960000-0x000000000096B000-memory.dmp

Filesize
44KB

Download
memory/4528-20-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/5064-10-0x0000000000BA0000-0x0000000000BA4000-memory.dmp

Filesize
16KB

Download