formbook | 7b6a3f5f885e00679f66af1168236c12b3db888689fe8bb7879f994f4160c352

Analysis

max time kernel
148s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 14:04

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General

Target

Sept order.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/3060-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3060-30-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1808-33-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	540	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
2736	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2176	uycpnelisbin91026.exe
3060	uycpnelisbin91026.exe

Loads dropped DLL 1 IoCs

pid	Process
540	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 2176 set thread context of 3060	2176	uycpnelisbin91026.exe	37
PID 3060 set thread context of 1224	3060	uycpnelisbin91026.exe	21
PID 3060 set thread context of 1224	3060	uycpnelisbin91026.exe	21
PID 1808 set thread context of 1224	1808	wlanext.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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.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 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
540	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2092	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3060	uycpnelisbin91026.exe
3060	uycpnelisbin91026.exe
2736	powershell.exe
3060	uycpnelisbin91026.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe
1808	wlanext.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3060	uycpnelisbin91026.exe
3060	uycpnelisbin91026.exe
3060	uycpnelisbin91026.exe
3060	uycpnelisbin91026.exe
1808	wlanext.exe
1808	wlanext.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	uycpnelisbin91026.exe
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	1808	wlanext.exe
Token: SeShutdownPrivilege	1224	Explorer.EXE
Token: SeShutdownPrivilege	1224	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2092	WINWORD.EXE
2092	WINWORD.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 2176	540	EQNEDT32.EXE	33
PID 540 wrote to memory of 2176	540	EQNEDT32.EXE	33
PID 540 wrote to memory of 2176	540	EQNEDT32.EXE	33
PID 540 wrote to memory of 2176	540	EQNEDT32.EXE	33
PID 2092 wrote to memory of 2644	2092	WINWORD.EXE	35
PID 2092 wrote to memory of 2644	2092	WINWORD.EXE	35
PID 2092 wrote to memory of 2644	2092	WINWORD.EXE	35
PID 2092 wrote to memory of 2644	2092	WINWORD.EXE	35
PID 2176 wrote to memory of 2736	2176	uycpnelisbin91026.exe	36
PID 2176 wrote to memory of 2736	2176	uycpnelisbin91026.exe	36
PID 2176 wrote to memory of 2736	2176	uycpnelisbin91026.exe	36
PID 2176 wrote to memory of 2736	2176	uycpnelisbin91026.exe	36
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 2176 wrote to memory of 3060	2176	uycpnelisbin91026.exe	37
PID 1224 wrote to memory of 1808	1224	Explorer.EXE	39
PID 1224 wrote to memory of 1808	1224	Explorer.EXE	39
PID 1224 wrote to memory of 1808	1224	Explorer.EXE	39
PID 1224 wrote to memory of 1808	1224	Explorer.EXE	39
PID 1808 wrote to memory of 1088	1808	wlanext.exe	40
PID 1808 wrote to memory of 1088	1808	wlanext.exe	40
PID 1808 wrote to memory of 1088	1808	wlanext.exe	40
PID 1808 wrote to memory of 1088	1808	wlanext.exe	40

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1224
- 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\Sept order.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:2092
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:2644
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:1808
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\uycpnelisbin91026.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1088

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:540
- 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:2176
- - 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:2736
- - 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:3060

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
6c73869aa55fd381fbaa015ef09ad71d

SHA1
bf58a9d325329f63c0aa2a726d83a0ceeafb80b9

SHA256
5ccade4df6eff1361068352f84a6da2c18f427b4deebe35deecec808bd1cf8f7

SHA512
5442fd2d44c284704b4858f522fcf314c3ba4e3acf5fbc2905560628e9a19b8f90c1d6cd2a486928ef81ac48a57ef15da6562c017ee874c4a5e553c63dc71b87

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

Filesize
600KB

MD5
a666dc5c6765f6912878fc840aceaf82

SHA1
9f804c5d474f723f6c08cac07569c237c25286a7

SHA256
a3a0f6ef77d8d2270b5baac5ac9185bdf9e30351e61cb6f7a90c76601e004b15

SHA512
4835ff70937f9b5f0da3e2ff61126255b1da74e7c0be00654e062b9b5463ad10380b1e2952c7ccaf05d9090a03c8a020ec6baf6cd7b3259ab54e3de57582553b

Download Submit
memory/1224-31-0x0000000006E60000-0x0000000006FE2000-memory.dmp

Filesize
1.5MB

Download
memory/1224-36-0x0000000006620000-0x0000000006762000-memory.dmp

Filesize
1.3MB

Download
memory/1808-33-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1808-32-0x0000000000A10000-0x0000000000A26000-memory.dmp

Filesize
88KB

Download
memory/2092-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2092-2-0x0000000071A2D000-0x0000000071A38000-memory.dmp

Filesize
44KB

Download
memory/2092-63-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2092-0-0x000000002F971000-0x000000002F972000-memory.dmp

Filesize
4KB

Download
memory/2092-17-0x0000000071A2D000-0x0000000071A38000-memory.dmp

Filesize
44KB

Download
memory/2176-15-0x0000000000D40000-0x0000000000DDC000-memory.dmp

Filesize
624KB

Download
memory/2176-19-0x0000000005720000-0x0000000005796000-memory.dmp

Filesize
472KB

Download
memory/2176-18-0x000000006BB0E000-0x000000006BB0F000-memory.dmp

Filesize
4KB

Download
memory/2176-16-0x00000000003F0000-0x0000000000402000-memory.dmp

Filesize
72KB

Download
memory/2176-13-0x000000006BB0E000-0x000000006BB0F000-memory.dmp

Filesize
4KB

Download
memory/3060-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3060-30-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3060-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3060-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download