formbook | 184365416efed1893465d9c1dc0e59aab43f3b6dba54e7e51434ed240c43799b

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/09/2024, 23:14

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General

Target

ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
Size

305KB
MD5

ea2729d917d24f794e57dc27a5edbb6d
SHA1

4acbd39f6c95793feb9c7e52f256274aa8c02e80
SHA256

184365416efed1893465d9c1dc0e59aab43f3b6dba54e7e51434ed240c43799b
SHA512

8d9a5d455dbd4e71a5a642a2dff2701fb9fecde0c875e17980533496ae4d9adc845ea3bf930cb3c03c9bd455bc40d444f827b500bb185d99baceaf258ac26f96
SSDEEP

6144:l+/8yFfrs5dxZaxISwaFuW+RikI0hRDfcdD6k2fRFtYbG3B1EVa7wchNHi7HrD/:l+/xFWdHaFj+RpI0bD0dDupFtYbGrqxr

Score

10^/10

formbook hx211 credential_access discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

hx211

Decoy

benriya-gucci.net

rakecare.ltd

dentalrenaissance.net

filmaporter.com

www284234.com

gnjacnheating.com

bzjxbzsb.com

977zzi.info

zfur.ltd

codingsir.com

test-testin424dgd.com

from-france-with-love.wine

new-igrovyeavtomatiwulcan.com

alexisandtim.com

oneconvey.com

vanhavadurumu.com

perthshirescotland.com

xp666.ink

amywrightportfolio.com

teicoma.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1848-13-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/1848-19-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
232	ecoco.exe
1848	ecoco.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ecocococo = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\ecocococo.txt \| cmd"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9ROXIJR8FV5 = "C:\\Program Files (x86)\\Vh0ud\\5jd04vpknup2tbp.exe"	cmmon32.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 232 set thread context of 1848	232	ecoco.exe	88
PID 1848 set thread context of 3456	1848	ecoco.exe	56
PID 3856 set thread context of 3456	3856	cmmon32.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Vh0ud\5jd04vpknup2tbp.exe	cmmon32.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ecoco.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
232	ecoco.exe
232	ecoco.exe
1848	ecoco.exe
1848	ecoco.exe
1848	ecoco.exe
1848	ecoco.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe
3856	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1848	ecoco.exe
1848	ecoco.exe
1848	ecoco.exe
3856	cmmon32.exe
3856	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
Token: SeDebugPrivilege	232	ecoco.exe
Token: SeDebugPrivilege	1848	ecoco.exe
Token: SeDebugPrivilege	3856	cmmon32.exe
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE
Token: SeShutdownPrivilege	3456	Explorer.EXE
Token: SeCreatePagefilePrivilege	3456	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 3668	3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	82
PID 3152 wrote to memory of 3668	3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	82
PID 3152 wrote to memory of 3668	3152	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	82
PID 3668 wrote to memory of 232	3668	cmd.exe	84
PID 3668 wrote to memory of 232	3668	cmd.exe	84
PID 3668 wrote to memory of 232	3668	cmd.exe	84
PID 232 wrote to memory of 3588	232	ecoco.exe	85
PID 232 wrote to memory of 3588	232	ecoco.exe	85
PID 232 wrote to memory of 3588	232	ecoco.exe	85
PID 3588 wrote to memory of 3444	3588	cmd.exe	87
PID 3588 wrote to memory of 3444	3588	cmd.exe	87
PID 3588 wrote to memory of 3444	3588	cmd.exe	87
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 232 wrote to memory of 1848	232	ecoco.exe	88
PID 3456 wrote to memory of 3856	3456	Explorer.EXE	89
PID 3456 wrote to memory of 3856	3456	Explorer.EXE	89
PID 3456 wrote to memory of 3856	3456	Explorer.EXE	89
PID 3856 wrote to memory of 2532	3856	cmmon32.exe	92
PID 3856 wrote to memory of 2532	3856	cmmon32.exe	92
PID 3856 wrote to memory of 2532	3856	cmmon32.exe	92
PID 3856 wrote to memory of 4280	3856	cmmon32.exe	101
PID 3856 wrote to memory of 4280	3856	cmmon32.exe	101
PID 3856 wrote to memory of 4280	3856	cmmon32.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3668
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:232
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3588
      - C:\Windows\SysWOW64\reg.exe
        
        reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "ecocococo" /d "cmd /c type "C:\Users\Admin\AppData\Local\Temp\ecocococo.txt" | cmd"
        6⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:3444
    - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe
        
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        
        PID:1848
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3856
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2532
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Roaming\3MLP71PR\3MLlogim.jpeg

Filesize
81KB

MD5
6da8faf359e2748ab68a5b454cc35870

SHA1
f85b268560d3a5953f3b690f0fcba925944b80e4

SHA256
6d71d757be1aeabde8b462ad24b240d178a653d2d84b6e8a0ef3fed5459ad887

SHA512
f8114cb20115ba6fc8e592fccb633e089c6ff6dc238863505182efe9c6d085f1cf198991ef70c5f500392a58ef45ed471dd29853871dc1176b649f5fa47788b6

Download Submit
C:\Users\Admin\AppData\Roaming\3MLP71PR\3MLlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\3MLP71PR\3MLlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\3MLP71PR\3MLlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecoco.exe

Filesize
305KB

MD5
ea2729d917d24f794e57dc27a5edbb6d

SHA1
4acbd39f6c95793feb9c7e52f256274aa8c02e80

SHA256
184365416efed1893465d9c1dc0e59aab43f3b6dba54e7e51434ed240c43799b

SHA512
8d9a5d455dbd4e71a5a642a2dff2701fb9fecde0c875e17980533496ae4d9adc845ea3bf930cb3c03c9bd455bc40d444f827b500bb185d99baceaf258ac26f96

Download Submit
memory/232-7-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/232-9-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/232-11-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/232-16-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/1848-17-0x0000000000FA0000-0x00000000012EA000-memory.dmp

Filesize
3.3MB

Download
memory/1848-20-0x0000000000A80000-0x0000000000A94000-memory.dmp

Filesize
80KB

Download
memory/1848-19-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1848-13-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3152-0-0x0000000074FD2000-0x0000000074FD3000-memory.dmp

Filesize
4KB

Download
memory/3152-10-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/3152-2-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/3152-1-0x0000000074FD0000-0x0000000075581000-memory.dmp

Filesize
5.7MB

Download
memory/3456-21-0x0000000002AD0000-0x0000000002BDA000-memory.dmp

Filesize
1.0MB

Download
memory/3456-27-0x00000000077B0000-0x000000000785F000-memory.dmp

Filesize
700KB

Download
memory/3856-22-0x0000000000F80000-0x0000000000F8C000-memory.dmp

Filesize
48KB

Download
memory/3856-23-0x0000000000F80000-0x0000000000F8C000-memory.dmp

Filesize
48KB

Download