formbook | 7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352

Analysis

max time kernel
149s
max time network
137s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/09/2024, 01:53

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General

Target

7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352.rtf
Size

634KB
MD5

4c8e90937a0516f48aa3b8cb17cbc7b8
SHA1

89b8ff3dbb714d2ff658e0c09a65dbc590e19da4
SHA256

7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352
SHA512

84be326e914937e3ebf91824d701de5b2c14d4f4e30dd0b0f6d571f99ceebbd24e6ed947d748e084ac3fe69cca1e43f21b64793cb63130fe5a969917b9314391
SSDEEP

6144:bwAYwAYwAYwAYwAY9A3i0AJW6fiI5zXaW:+

Score

10^/10

formbook bopi discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bopi

Decoy

zq4.top

relationship-coach-88497.bond

destekbirimi.xyz

tgh-reg.xyz

pepcapital.net

edunote.media

loans-credits-63765.bond

zhxgtlw.top

rajalele.xyz

ug-tower.asia

agrajter.com

investment-services-44387.bond

yaoxiaocang.fun

23win6.top

used-cars-84168.bond

primesourceglobal.net

indiapostsk.vip

qe2i7cghzpebk.buzz

furniture-27975.bond

fy489tysiot4twoinsr3295y78h.xyz

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
behavioral1/memory/2932-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2932-28-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1472-31-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2560	EQNEDT32.EXE
7	2560	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
2688	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2764	uycpnelisbin91026.exe
2932	uycpnelisbin91026.exe

Loads dropped DLL 1 IoCs

pid	Process
2560	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 4 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 2932	2764	uycpnelisbin91026.exe	37
PID 2932 set thread context of 1156	2932	uycpnelisbin91026.exe	20
PID 2932 set thread context of 1156	2932	uycpnelisbin91026.exe	20
PID 1472 set thread context of 1156	1472	svchost.exe	20

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 6 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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	uycpnelisbin91026.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Office loads VBA resources, possible macro or embedded object present

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
2560	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1832	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2932	uycpnelisbin91026.exe
2932	uycpnelisbin91026.exe
2688	powershell.exe
2932	uycpnelisbin91026.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe
1472	svchost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2932	uycpnelisbin91026.exe
2932	uycpnelisbin91026.exe
2932	uycpnelisbin91026.exe
2932	uycpnelisbin91026.exe
1472	svchost.exe
1472	svchost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2932	uycpnelisbin91026.exe
Token: SeDebugPrivilege	2688	powershell.exe
Token: SeDebugPrivilege	1472	svchost.exe
Token: SeShutdownPrivilege	1156	Explorer.EXE
Token: SeShutdownPrivilege	1156	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1832	WINWORD.EXE
1832	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2764	2560	EQNEDT32.EXE	33
PID 2560 wrote to memory of 2764	2560	EQNEDT32.EXE	33
PID 2560 wrote to memory of 2764	2560	EQNEDT32.EXE	33
PID 2560 wrote to memory of 2764	2560	EQNEDT32.EXE	33
PID 1832 wrote to memory of 308	1832	WINWORD.EXE	35
PID 1832 wrote to memory of 308	1832	WINWORD.EXE	35
PID 1832 wrote to memory of 308	1832	WINWORD.EXE	35
PID 1832 wrote to memory of 308	1832	WINWORD.EXE	35
PID 2764 wrote to memory of 2688	2764	uycpnelisbin91026.exe	36
PID 2764 wrote to memory of 2688	2764	uycpnelisbin91026.exe	36
PID 2764 wrote to memory of 2688	2764	uycpnelisbin91026.exe	36
PID 2764 wrote to memory of 2688	2764	uycpnelisbin91026.exe	36
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 2764 wrote to memory of 2932	2764	uycpnelisbin91026.exe	37
PID 1156 wrote to memory of 1472	1156	Explorer.EXE	39
PID 1156 wrote to memory of 1472	1156	Explorer.EXE	39
PID 1156 wrote to memory of 1472	1156	Explorer.EXE	39
PID 1156 wrote to memory of 1472	1156	Explorer.EXE	39
PID 1472 wrote to memory of 1660	1472	svchost.exe	40
PID 1472 wrote to memory of 1660	1472	svchost.exe	40
PID 1472 wrote to memory of 1660	1472	svchost.exe	40
PID 1472 wrote to memory of 1660	1472	svchost.exe	40

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1156
- 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\7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352.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:1832
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:308
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:1472
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1660

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:2560
- C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe
  "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2764
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.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:2688
- - C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe
    "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2932

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

C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
19KB

MD5
3f40e64d91dc6c452137a7c57772af0b

SHA1
2722e032a54824f809ed4cf9effb0b46599c8bfd

SHA256
2d48a0f5dbf204b2ed2f1ac53355bda90844c6f48d4fb88c3bd15264eb9dc8e3

SHA512
20601c8ff739b7c3f1fff13cfcd10358e4a5290c24d17531bd9401322d0d5bcac0ceeeb11c68b9779a9303bf759899ef15284a2b268786809f10fe365f34d3ed

Download Submit
\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe

Filesize
688KB

MD5
2e2e31266b24dc4bc6b0544072c84dba

SHA1
babb8e29fbc0ada556c4bf2b337a7dfff7720e27

SHA256
6b9ab74ddb1e7164be432138c6bff37f0a473611558e658192dac57212739608

SHA512
79de29558a9f96f3a84b79bf32613463baf06158604678ab44f692cb894ec75bcd0fc7ab5b6a79e3048a2b77af5271baded24c86e8286ffeb7b168c4826ccca6

Download Submit
memory/1156-29-0x0000000005130000-0x00000000052C2000-memory.dmp

Filesize
1.6MB

Download
memory/1156-34-0x0000000007850000-0x0000000007959000-memory.dmp

Filesize
1.0MB

Download
memory/1472-31-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1472-30-0x00000000001D0000-0x00000000001D8000-memory.dmp

Filesize
32KB

Download
memory/1832-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1832-2-0x00000000717DD000-0x00000000717E8000-memory.dmp

Filesize
44KB

Download
memory/1832-4-0x00000000717DD000-0x00000000717E8000-memory.dmp

Filesize
44KB

Download
memory/1832-0-0x000000002FA91000-0x000000002FA92000-memory.dmp

Filesize
4KB

Download
memory/1832-59-0x00000000717DD000-0x00000000717E8000-memory.dmp

Filesize
44KB

Download
memory/1832-58-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2764-15-0x00000000008D0000-0x0000000000982000-memory.dmp

Filesize
712KB

Download
memory/2764-17-0x0000000005C50000-0x0000000005CC8000-memory.dmp

Filesize
480KB

Download
memory/2764-16-0x00000000004C0000-0x00000000004D2000-memory.dmp

Filesize
72KB

Download
memory/2932-28-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2932-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2932-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2932-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download