formbook | 409992d0436f5256bc7bf86bbe08d7c41d13103c59f1cfc35885d1608a3e7286

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
16/08/2023, 05:51

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General

Target

BID-758472938.rtf
Size

122KB
MD5

13a3f6521c13ba0c632db67c7041c977
SHA1

5dd8153d6daa7d000fbb5c9c9760bc2f57b27a1c
SHA256

409992d0436f5256bc7bf86bbe08d7c41d13103c59f1cfc35885d1608a3e7286
SHA512

410fa352b9ae96e604f07c7b1ecd34fe24b6d80fed05cfd2dde6b9e5c5c22a8419a6c7463d7234706dd76f8e6b2de2d44f3a18bd6c5c8286d2decd7373cbc01b
SSDEEP

768:vwAbZSibMX9gRWjzAvwVO4xNX027K0zNKiCzaYF4bwvvh1D6:vwAlRsAvH4fX023zv95wvvS

Score

10^/10

formbook oy30 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

oy30

Decoy

rfc234.top

danielcavalari.com

elperegrinocabo.com

aryor.info

surelistening.com

premium-numero-telf.buzz

orlynyml.click

tennislovers-ro.com

holdmytracker.com

eewapay.com

jaimesinstallglass.com

damactrade.net

swapspecialities.com

perfumesrffd.today

salesfactory.pro

supportive-solutions.com

naiol.com

khoyr.com

kalendeargpt44.com

web-tech-spb.store

Signatures

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

Formbook payload 5 IoCs

rat

resource	yara_rule
behavioral1/memory/1440-93-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1440-98-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1440-103-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1708-111-0x0000000000110000-0x000000000013F000-memory.dmp	formbook
behavioral1/memory/1708-113-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2436	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1264	obidh476528.exe
1440	obidh476528.exe

Loads dropped DLL 2 IoCs

pid	Process
2436	EQNEDT32.EXE
2436	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1264 set thread context of 1440	1264	obidh476528.exe	36
PID 1440 set thread context of 1400	1440	obidh476528.exe	15
PID 1440 set thread context of 1400	1440	obidh476528.exe	15
PID 1708 set thread context of 1400	1708	msiexec.exe	15

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.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
2436	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2320	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1440	obidh476528.exe
1440	obidh476528.exe
1440	obidh476528.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe
1708	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1400	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1440	obidh476528.exe
1440	obidh476528.exe
1440	obidh476528.exe
1440	obidh476528.exe
1708	msiexec.exe
1708	msiexec.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1440	obidh476528.exe
Token: SeDebugPrivilege	1708	msiexec.exe
Token: SeShutdownPrivilege	1400	Explorer.EXE
Token: SeShutdownPrivilege	1400	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2320	WINWORD.EXE
2320	WINWORD.EXE

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 1264	2436	EQNEDT32.EXE	30
PID 2436 wrote to memory of 1264	2436	EQNEDT32.EXE	30
PID 2436 wrote to memory of 1264	2436	EQNEDT32.EXE	30
PID 2436 wrote to memory of 1264	2436	EQNEDT32.EXE	30
PID 2320 wrote to memory of 2728	2320	WINWORD.EXE	35
PID 2320 wrote to memory of 2728	2320	WINWORD.EXE	35
PID 2320 wrote to memory of 2728	2320	WINWORD.EXE	35
PID 2320 wrote to memory of 2728	2320	WINWORD.EXE	35
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1264 wrote to memory of 1440	1264	obidh476528.exe	36
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1400 wrote to memory of 1708	1400	Explorer.EXE	38
PID 1708 wrote to memory of 1960	1708	msiexec.exe	39
PID 1708 wrote to memory of 1960	1708	msiexec.exe	39
PID 1708 wrote to memory of 1960	1708	msiexec.exe	39
PID 1708 wrote to memory of 1960	1708	msiexec.exe	39

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1400
- 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\BID-758472938.rtf"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:2728
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2000
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\obidh476528.exe"
    3⤵
    PID:1960

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
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Roaming\obidh476528.exe
  "C:\Users\Admin\AppData\Roaming\obidh476528.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Users\Admin\AppData\Roaming\obidh476528.exe
    "C:\Users\Admin\AppData\Roaming\obidh476528.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
20KB

MD5
3ccb590d59986f37df26241a5faa064b

SHA1
188beb56fade80cd4d23ce5b046878b9b08c555f

SHA256
6ea892f0f3e5fa4c612e4ef2c469d258ade5a161ca07d56227fa842c56420d28

SHA512
56f25d303436a3b4f6b7667124062412b7f207ee203bfb0ef390ea9f6e12e4fa4c02b08e50e5b03d6ce6501b7107ca715cf80dbd02f049a851394b7362228e70

Download Submit
C:\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
C:\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
C:\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
C:\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
\Users\Admin\AppData\Roaming\obidh476528.exe

Filesize
735KB

MD5
42ff031f633bfe860ef4e88115d099af

SHA1
ee248ba90ef89446723d2e351179eb94667a0c5c

SHA256
5ac0d32f2c164f00048bf818f43ed4160be02cc98ec66c810d043fc77fc70929

SHA512
9293ac241e69943cc35173b64072c4e1ae57a45dc07424e2e59b98ee2f5bda6f0d5d9efd8fb1580c7aa3f5ddfd6df2a9134ceed1187b1b4a15e5099d8046e343

Download Submit
memory/1264-85-0x0000000000880000-0x000000000088E000-memory.dmp

Filesize
56KB

Download
memory/1264-72-0x0000000000C40000-0x0000000000CFE000-memory.dmp

Filesize
760KB

Download
memory/1264-73-0x000000006AD80000-0x000000006B46E000-memory.dmp

Filesize
6.9MB

Download
memory/1264-74-0x0000000004F00000-0x0000000004F40000-memory.dmp

Filesize
256KB

Download
memory/1264-75-0x0000000000800000-0x0000000000812000-memory.dmp

Filesize
72KB

Download
memory/1264-95-0x000000006AD80000-0x000000006B46E000-memory.dmp

Filesize
6.9MB

Download
memory/1264-86-0x0000000004D30000-0x0000000004D9E000-memory.dmp

Filesize
440KB

Download
memory/1264-82-0x000000006AD80000-0x000000006B46E000-memory.dmp

Filesize
6.9MB

Download
memory/1264-83-0x0000000004F00000-0x0000000004F40000-memory.dmp

Filesize
256KB

Download
memory/1400-100-0x0000000000240000-0x0000000000340000-memory.dmp

Filesize
1024KB

Download
memory/1400-114-0x00000000070F0000-0x00000000071BD000-memory.dmp

Filesize
820KB

Download
memory/1400-117-0x0000000000240000-0x0000000000340000-memory.dmp

Filesize
1024KB

Download
memory/1400-119-0x00000000071C0000-0x00000000072B2000-memory.dmp

Filesize
968KB

Download
memory/1400-120-0x00000000071C0000-0x00000000072B2000-memory.dmp

Filesize
968KB

Download
memory/1400-106-0x00000000070F0000-0x00000000071BD000-memory.dmp

Filesize
820KB

Download
memory/1400-148-0x000007FEF60C0000-0x000007FEF6203000-memory.dmp

Filesize
1.3MB

Download
memory/1400-149-0x000007FF576F0000-0x000007FF576FA000-memory.dmp

Filesize
40KB

Download
memory/1400-105-0x00000000064D0000-0x0000000006599000-memory.dmp

Filesize
804KB

Download
memory/1400-122-0x00000000071C0000-0x00000000072B2000-memory.dmp

Filesize
968KB

Download
memory/1400-101-0x00000000064D0000-0x0000000006599000-memory.dmp

Filesize
804KB

Download
memory/1440-99-0x00000000003A0000-0x00000000003B5000-memory.dmp

Filesize
84KB

Download
memory/1440-98-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1440-104-0x00000000003E0000-0x00000000003F5000-memory.dmp

Filesize
84KB

Download
memory/1440-103-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1440-96-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1440-93-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1440-91-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1440-89-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1440-87-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1708-111-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/1708-107-0x0000000000510000-0x0000000000524000-memory.dmp

Filesize
80KB

Download
memory/1708-113-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/1708-112-0x0000000002350000-0x0000000002653000-memory.dmp

Filesize
3.0MB

Download
memory/1708-116-0x0000000001EB0000-0x0000000001F44000-memory.dmp

Filesize
592KB

Download
memory/1708-110-0x0000000000510000-0x0000000000524000-memory.dmp

Filesize
80KB

Download
memory/1708-108-0x0000000000510000-0x0000000000524000-memory.dmp

Filesize
80KB

Download
memory/2320-54-0x000000002F7C0000-0x000000002F91D000-memory.dmp

Filesize
1.4MB

Download
memory/2320-81-0x0000000070C7D000-0x0000000070C88000-memory.dmp

Filesize
44KB

Download
memory/2320-80-0x000000002F7C0000-0x000000002F91D000-memory.dmp

Filesize
1.4MB

Download
memory/2320-142-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2320-143-0x0000000070C7D000-0x0000000070C88000-memory.dmp

Filesize
44KB

Download
memory/2320-56-0x0000000070C7D000-0x0000000070C88000-memory.dmp

Filesize
44KB

Download
memory/2320-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download