formbook | 7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352

Analysis

max time kernel
146s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 04:31

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General

Target

Septorder.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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1948-28-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1756-34-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2112	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
992	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2888	uycpnelisbin91026.exe
1948	uycpnelisbin91026.exe

Loads dropped DLL 2 IoCs

pid	Process
2112	EQNEDT32.EXE
2112	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 2888 set thread context of 1948	2888	uycpnelisbin91026.exe	38
PID 1948 set thread context of 1192	1948	uycpnelisbin91026.exe	21
PID 1756 set thread context of 1192	1756	wininit.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 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	uycpnelisbin91026.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.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

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
2112	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2532	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1948	uycpnelisbin91026.exe
1948	uycpnelisbin91026.exe
992	powershell.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe
1756	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1948	uycpnelisbin91026.exe
1948	uycpnelisbin91026.exe
1948	uycpnelisbin91026.exe
1756	wininit.exe
1756	wininit.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1948	uycpnelisbin91026.exe
Token: SeDebugPrivilege	992	powershell.exe
Token: SeDebugPrivilege	1756	wininit.exe
Token: SeShutdownPrivilege	1192	Explorer.EXE
Token: SeShutdownPrivilege	1192	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2532	WINWORD.EXE
2532	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2888	2112	EQNEDT32.EXE	32
PID 2112 wrote to memory of 2888	2112	EQNEDT32.EXE	32
PID 2112 wrote to memory of 2888	2112	EQNEDT32.EXE	32
PID 2112 wrote to memory of 2888	2112	EQNEDT32.EXE	32
PID 2532 wrote to memory of 2192	2532	WINWORD.EXE	35
PID 2532 wrote to memory of 2192	2532	WINWORD.EXE	35
PID 2532 wrote to memory of 2192	2532	WINWORD.EXE	35
PID 2532 wrote to memory of 2192	2532	WINWORD.EXE	35
PID 2888 wrote to memory of 992	2888	uycpnelisbin91026.exe	36
PID 2888 wrote to memory of 992	2888	uycpnelisbin91026.exe	36
PID 2888 wrote to memory of 992	2888	uycpnelisbin91026.exe	36
PID 2888 wrote to memory of 992	2888	uycpnelisbin91026.exe	36
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 2888 wrote to memory of 1948	2888	uycpnelisbin91026.exe	38
PID 1192 wrote to memory of 1756	1192	Explorer.EXE	39
PID 1192 wrote to memory of 1756	1192	Explorer.EXE	39
PID 1192 wrote to memory of 1756	1192	Explorer.EXE	39
PID 1192 wrote to memory of 1756	1192	Explorer.EXE	39
PID 1756 wrote to memory of 484	1756	wininit.exe	40
PID 1756 wrote to memory of 484	1756	wininit.exe	40
PID 1756 wrote to memory of 484	1756	wininit.exe	40
PID 1756 wrote to memory of 484	1756	wininit.exe	40

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1192
- 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\Septorder.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:2532
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:2192
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:1756
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:484

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:2112
- 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:2888
- - 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:992
- - 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:1948

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
bc7e3118f76b82104549e8b63d4dc208

SHA1
58739fff0c36656be75dfb2b38ebb2f762b2f67b

SHA256
20b648abc45533b3c64401c8a09baea6f5043d37cc269a4b860290c9a8d84fa9

SHA512
2bd6f604dd59ef2a634e5b7fac326c15769bae7fcfabe3804097a318791e213dec4d66a72b8059b533f136eb416e5265adf559adefb8b8acbe702a2afc3806f6

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

Filesize
598KB

MD5
38c1ccf3f07a1f8f315b1c1b96b24ffb

SHA1
2e3fd8d567b6920daf9ce832c8dd6b7460be49eb

SHA256
80b8981399b2ae1ff2daa59de97262c5834ea95669a620fbfe54e603c31dbe6f

SHA512
20ecc621e44cc6c63dc5c053d78461c12286924cadbf878433a4c1b60eb3f1d35699be6a4917166881ea3ddcd3f93ca754fa4dff9c899f45a5eb6629ddcc9b30

Download Submit
memory/1192-37-0x0000000006450000-0x00000000065AE000-memory.dmp

Filesize
1.4MB

Download
memory/1756-33-0x00000000003A0000-0x00000000003BA000-memory.dmp

Filesize
104KB

Download
memory/1756-34-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1948-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1948-28-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1948-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1948-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2532-2-0x0000000070D4D000-0x0000000070D58000-memory.dmp

Filesize
44KB

Download
memory/2532-0-0x000000002F2A1000-0x000000002F2A2000-memory.dmp

Filesize
4KB

Download
memory/2532-64-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2532-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2532-20-0x0000000070D4D000-0x0000000070D58000-memory.dmp

Filesize
44KB

Download
memory/2888-17-0x000000006AE2E000-0x000000006AE2F000-memory.dmp

Filesize
4KB

Download
memory/2888-22-0x0000000004DC0000-0x0000000004E36000-memory.dmp

Filesize
472KB

Download
memory/2888-21-0x000000006AE2E000-0x000000006AE2F000-memory.dmp

Filesize
4KB

Download
memory/2888-19-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/2888-18-0x0000000000F90000-0x000000000102C000-memory.dmp

Filesize
624KB

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