formbook | f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66

Analysis

max time kernel
146s
max time network
138s
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 03:21

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General

Target

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
Size

1.0MB
MD5

a44cd4afa52a450fa94c656b8d760339
SHA1

09e74273689360524e0afb2f394675d6753867b4
SHA256

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66
SHA512

a9e244674485d5d54efd79156c893b375f6a183404225520fb9ac501cd1fd8a99dd6faee6ce777a77996b6106bea91dbba0cc56b7ebf9af9bf8a6f1cb909d833
SSDEEP

24576:3AHnh+eWsN3skA4RV1Hom2KXMmHaGNrTAVTZN6EP5:qh+ZkldoPK8YaGx+24

Score

10^/10

formbook ma28 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ma28

Decoy

orth.monster

5970.pizza

oinayangi.net

usiness-funding-48965.bond

uttere.buzz

raumainformed.xyz

amewith.today

hetangosalon.net

irewoodprice168.shop

commerce-96305.bond

3107.loan

uohan.tech

agakaw.website

fricaduka.store

ecga.info

arehouse-inventory-27582.bond

itchen-design-87997.bond

eishahousesteaksushi.shop

liopew.xyz

4769.pizza

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/2096-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2096-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2376-15-0x0000000000770000-0x000000000079F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exesvchost.exeraserver.exe

description	pid	Process	procid_target
PID 3140 set thread context of 2096	3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe	82
PID 2096 set thread context of 3352	2096	svchost.exe	56
PID 2376 set thread context of 3352	2376	raserver.exe	56

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1324	3140	WerFault.exe	81

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:

cmd.exef43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exeraserver.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

svchost.exeraserver.exe

pid	Process
2096	svchost.exe
2096	svchost.exe
2096	svchost.exe
2096	svchost.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe
2376	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exesvchost.exeraserver.exe

pid	Process
3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
2096	svchost.exe
2096	svchost.exe
2096	svchost.exe
2376	raserver.exe
2376	raserver.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

svchost.exeExplorer.EXEraserver.exe

description	pid	Process
Token: SeDebugPrivilege	2096	svchost.exe
Token: SeShutdownPrivilege	3352	Explorer.EXE
Token: SeCreatePagefilePrivilege	3352	Explorer.EXE
Token: SeShutdownPrivilege	3352	Explorer.EXE
Token: SeCreatePagefilePrivilege	3352	Explorer.EXE
Token: SeDebugPrivilege	2376	raserver.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe

pid	Process
3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe

pid	Process
3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exeExplorer.EXEraserver.exe

description	pid	Process	procid_target
PID 3140 wrote to memory of 2096	3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe	82
PID 3140 wrote to memory of 2096	3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe	82
PID 3140 wrote to memory of 2096	3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe	82
PID 3140 wrote to memory of 2096	3140	f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe	82
PID 3352 wrote to memory of 2376	3352	Explorer.EXE	86
PID 3352 wrote to memory of 2376	3352	Explorer.EXE	86
PID 3352 wrote to memory of 2376	3352	Explorer.EXE	86
PID 2376 wrote to memory of 1172	2376	raserver.exe	89
PID 2376 wrote to memory of 1172	2376	raserver.exe	89
PID 2376 wrote to memory of 1172	2376	raserver.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\Temp\f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe
  "C:\Users\Admin\AppData\Local\Temp\f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.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:3140
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\f43fcf8e27da60e8295eed641aa845de83bb90e8e4e29ad90722e2f72236cb66.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2096
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 692
    3⤵
    - Program crash
    PID:1324
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2376
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3140 -ip 3140
1⤵
PID:2204

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/2096-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2096-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2096-7-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/2096-10-0x0000000000F40000-0x0000000000F54000-memory.dmp

Filesize
80KB

Download
memory/2376-12-0x00000000008F0000-0x000000000090F000-memory.dmp

Filesize
124KB

Download
memory/2376-14-0x00000000008F0000-0x000000000090F000-memory.dmp

Filesize
124KB

Download
memory/2376-15-0x0000000000770000-0x000000000079F000-memory.dmp

Filesize
188KB

Download
memory/3140-5-0x0000000001090000-0x0000000001094000-memory.dmp

Filesize
16KB

Download
memory/3352-11-0x0000000008880000-0x00000000089E9000-memory.dmp

Filesize
1.4MB

Download
memory/3352-16-0x0000000008880000-0x00000000089E9000-memory.dmp

Filesize
1.4MB

Download
memory/3352-20-0x0000000008B10000-0x0000000008C2A000-memory.dmp

Filesize
1.1MB

Download
memory/3352-21-0x0000000008B10000-0x0000000008C2A000-memory.dmp

Filesize
1.1MB

Download
memory/3352-23-0x0000000008B10000-0x0000000008C2A000-memory.dmp

Filesize
1.1MB

Download