formbook | 2bea70091eb6858272f4fb047c47b8accb79886682cc744f2455561923a72ca6

Analysis

max time kernel
300s
max time network
289s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-10-2024 15:59

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General

Target

apl.rtf
Size

202KB
MD5

96699d7c92183547a08b317df6f39695
SHA1

bdb797743b66daaa681041ef258ea964b834442a
SHA256

2bea70091eb6858272f4fb047c47b8accb79886682cc744f2455561923a72ca6
SHA512

27884bb6b04eabaf9faaff4fc5876f464ab3f75ba8a009453ddcfaffd041a663324188b63f57a970740f4bfd5975cefd2563bbcbdfe2be2db8919ca044124388
SSDEEP

6144:QuZpe2ClhlgNs8joPzbqKTcWkepI77WqCh:Qf

Score

10^/10

formbook btrd discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

btrd

Decoy

everslane.com

prairieviewelectric.online

dszvhgd.com

papamuch.com

8129k.vip

jeffreestar.gold

bestguestrentals.com

nvzhuang1.net

anangtoto.com

yxfgor.top

practicalpoppers.com

thebestanglephotography.online

koormm.top

criika.net

audioflow.online

380747.net

jiuguanwang.net

bloxequities.com

v321c.com

sugar.monster

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2724-27-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2968-35-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	1772	EQNEDT32.EXE

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2692	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2812	odsxbin20309.exe
2724	odsxbin20309.exe

Loads dropped DLL 1 IoCs

pid	Process
1772	EQNEDT32.EXE

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2812 set thread context of 2724	2812	odsxbin20309.exe	34
PID 2724 set thread context of 1188	2724	odsxbin20309.exe	21
PID 2968 set thread context of 1188	2968	systray.exe	21

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	odsxbin20309.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Office loads VBA resources, possible macro or embedded object present

Launches Equation Editor 1 TTPs 2 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
1772	EQNEDT32.EXE
2616	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1328	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 59 IoCs

pid	Process
2724	odsxbin20309.exe
2724	odsxbin20309.exe
2692	powershell.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe
2968	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2724	odsxbin20309.exe
2724	odsxbin20309.exe
2724	odsxbin20309.exe
2968	systray.exe
2968	systray.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	odsxbin20309.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeDebugPrivilege	2968	systray.exe
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1328	WINWORD.EXE
1328	WINWORD.EXE
1328	WINWORD.EXE
1328	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1772 wrote to memory of 2812	1772	EQNEDT32.EXE	31
PID 1772 wrote to memory of 2812	1772	EQNEDT32.EXE	31
PID 1772 wrote to memory of 2812	1772	EQNEDT32.EXE	31
PID 1772 wrote to memory of 2812	1772	EQNEDT32.EXE	31
PID 2812 wrote to memory of 2692	2812	odsxbin20309.exe	33
PID 2812 wrote to memory of 2692	2812	odsxbin20309.exe	33
PID 2812 wrote to memory of 2692	2812	odsxbin20309.exe	33
PID 2812 wrote to memory of 2692	2812	odsxbin20309.exe	33
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 2812 wrote to memory of 2724	2812	odsxbin20309.exe	34
PID 1188 wrote to memory of 2968	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2968	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2968	1188	Explorer.EXE	36
PID 1188 wrote to memory of 2968	1188	Explorer.EXE	36
PID 1328 wrote to memory of 2932	1328	WINWORD.EXE	37
PID 1328 wrote to memory of 2932	1328	WINWORD.EXE	37
PID 1328 wrote to memory of 2932	1328	WINWORD.EXE	37
PID 1328 wrote to memory of 2932	1328	WINWORD.EXE	37
PID 2968 wrote to memory of 796	2968	systray.exe	39
PID 2968 wrote to memory of 796	2968	systray.exe	39
PID 2968 wrote to memory of 796	2968	systray.exe	39
PID 2968 wrote to memory of 796	2968	systray.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\apl.rtf"
  2⤵
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1328
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:2932
- 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:2968
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\odsxbin20309.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:796

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:1772
- C:\Users\Admin\AppData\Roaming\odsxbin20309.exe
  "C:\Users\Admin\AppData\Roaming\odsxbin20309.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\odsxbin20309.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- - C:\Users\Admin\AppData\Roaming\odsxbin20309.exe
    "C:\Users\Admin\AppData\Roaming\odsxbin20309.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2724

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- System Location Discovery: System Language Discovery
- Launches Equation Editor
PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Exploitation for Client Execution

T1203

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

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Downloads

\Users\Admin\AppData\Roaming\odsxbin20309.exe

Filesize
651KB

MD5
5670fc04099860bc61fbca6c054d7ffd

SHA1
b35b270f85846d39c3eaafcf445ea0e7f25112a0

SHA256
7eeedd91e430f1e9c8545e40ca7eb073e4d76104f907734f92aa4110e3ef2b9f

SHA512
d07055e70a7f126c718b16aac950cbf0a09289acb5288492250b50d95a4dc91759ff8f63ab03174d20210651e85ea4d3675ff2599838a3c264cf06d779729023

Download Submit
memory/1188-38-0x0000000004070000-0x0000000004131000-memory.dmp

Filesize
772KB

Download
memory/1188-32-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1328-0-0x000000002F251000-0x000000002F252000-memory.dmp

Filesize
4KB

Download
memory/1328-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1328-2-0x000000007118D000-0x0000000071198000-memory.dmp

Filesize
44KB

Download
memory/1328-20-0x000000007118D000-0x0000000071198000-memory.dmp

Filesize
44KB

Download
memory/2724-27-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2724-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2724-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2812-21-0x0000000000570000-0x00000000005E6000-memory.dmp

Filesize
472KB

Download
memory/2812-15-0x0000000000660000-0x000000000067E000-memory.dmp

Filesize
120KB

Download
memory/2812-14-0x0000000000AB0000-0x0000000000B5A000-memory.dmp

Filesize
680KB

Download
memory/2968-34-0x0000000000630000-0x0000000000635000-memory.dmp

Filesize
20KB

Download
memory/2968-35-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download