formbook | 46bcde824114484f405e35827ddd2a1520ba1349644cd0bd7d9bead3f3d83730

General

Target

46bcde824114484f405e35827ddd2a1520ba1349644cd0bd7d9bead3f3d83730.xlsx
Size

1.5MB
MD5

e15cba1287fd9a0d755685df0c8d24e2
SHA1

39be11722c3417a9e330dd265cae7d30c2b23c32
SHA256

46bcde824114484f405e35827ddd2a1520ba1349644cd0bd7d9bead3f3d83730
SHA512

e96d726f92d5de720cad1bae386999cabc588c72968cf824428ef853660fa839a6fdb1ff79ed78ae21a5a395f41556ce045a99c282508e30ab2517ee2770906e
SSDEEP

49152:iwoULlGhp8mRgfzBMzlkc3PakctEXuS0EOrrb:JoULlGv+7Gp3BceXlL+f

Score

10^/10

formbook hwu6 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hwu6

Decoy

lf758.vip

locerin-hair.shop

vytech.net

pet-insurance-intl-7990489.live

thepolithat.buzz

d66dr114gl.bond

suv-deals-49508.bond

job-offer-53922.bond

drstone1.click

lebahsemesta57.click

olmanihousel.shop

piedmontcsb.info

trisula888x.top

66sodovna.net

dental-implants-83810.bond

imxtld.club

frozenpines.net

ffgzgbl.xyz

tlc7z.rest

alexismuller.design

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
behavioral1/memory/2856-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2856-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2636-19-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2896	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2820	word.exe

Loads dropped DLL 1 IoCs

pid	Process
2896	EQNEDT32.EXE

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000015e47-6.dat	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2856	2820	word.exe	32
PID 2856 set thread context of 1184	2856	svchost.exe	21
PID 2856 set thread context of 1184	2856	svchost.exe	21
PID 2636 set thread context of 1184	2636	NETSTAT.EXE	21

System Location Discovery: System Language Discovery 1 TTPs 5 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	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	word.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.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
2636	NETSTAT.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2896	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2940	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2856	svchost.exe
2856	svchost.exe
2856	svchost.exe
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE
2636	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2820	word.exe
2856	svchost.exe
2856	svchost.exe
2856	svchost.exe
2856	svchost.exe
2636	NETSTAT.EXE
2636	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	svchost.exe
Token: SeDebugPrivilege	2636	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2820	word.exe
2820	word.exe
1184	Explorer.EXE
1184	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2820	word.exe
2820	word.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2940	EXCEL.EXE
2940	EXCEL.EXE
2940	EXCEL.EXE

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2820	2896	EQNEDT32.EXE	31
PID 2896 wrote to memory of 2820	2896	EQNEDT32.EXE	31
PID 2896 wrote to memory of 2820	2896	EQNEDT32.EXE	31
PID 2896 wrote to memory of 2820	2896	EQNEDT32.EXE	31
PID 2820 wrote to memory of 2856	2820	word.exe	32
PID 2820 wrote to memory of 2856	2820	word.exe	32
PID 2820 wrote to memory of 2856	2820	word.exe	32
PID 2820 wrote to memory of 2856	2820	word.exe	32
PID 2820 wrote to memory of 2856	2820	word.exe	32
PID 1184 wrote to memory of 2636	1184	Explorer.EXE	33
PID 1184 wrote to memory of 2636	1184	Explorer.EXE	33
PID 1184 wrote to memory of 2636	1184	Explorer.EXE	33
PID 1184 wrote to memory of 2636	1184	Explorer.EXE	33
PID 2636 wrote to memory of 3064	2636	NETSTAT.EXE	34
PID 2636 wrote to memory of 3064	2636	NETSTAT.EXE	34
PID 2636 wrote to memory of 3064	2636	NETSTAT.EXE	34
PID 2636 wrote to memory of 3064	2636	NETSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\46bcde824114484f405e35827ddd2a1520ba1349644cd0bd7d9bead3f3d83730.xlsx
  2⤵
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:2940
- 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:2636
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3064

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Roaming\word.exe
  C:\Users\Admin\AppData\Roaming\word.exe
  2⤵
  - Executes dropped EXE
  - 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:2820
- - C:\Windows\SysWOW64\svchost.exe
    C:\Users\Admin\AppData\Roaming\word.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Roaming\word.exe

Filesize
1.4MB

MD5
47b4b12ff498d2620dd824b86ba20e98

SHA1
c563ff933dd402ed4734c5f2030bf0bc8afd46c6

SHA256
4af879a5ba55d1f85555bef2423b273f87df5db31d540934572ab4439e062545

SHA512
e19bf614de75c3b858726422817344a1ebc920b6daa9a8daec9fbef43e47a1ea218999473ab0ff53beead5a093e29a277d04a8cf2f811d38ad9b966d77212dce

Download Submit
memory/1184-15-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1184-23-0x00000000069D0000-0x0000000006B20000-memory.dmp

Filesize
1.3MB

Download
memory/2636-18-0x0000000000E40000-0x0000000000E49000-memory.dmp

Filesize
36KB

Download
memory/2636-19-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2856-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2856-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2940-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2940-1-0x000000007252D000-0x0000000072538000-memory.dmp

Filesize
44KB

Download
memory/2940-17-0x000000007252D000-0x0000000072538000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads