formbook | 184365416efed1893465d9c1dc0e59aab43f3b6dba54e7e51434ed240c43799b

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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 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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2652-19-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral1/memory/2652-25-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2724	ecoco.exe
2652	ecoco.exe

Loads dropped DLL 2 IoCs

pid	Process
2468	cmd.exe
2468	cmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\ecocococo = "cmd /c type C:\\Users\\Admin\\AppData\\Local\\Temp\\ecocococo.txt \| cmd"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2724 set thread context of 2652	2724	ecoco.exe	36
PID 2652 set thread context of 1196	2652	ecoco.exe	21
PID 2928 set thread context of 1196	2928	msdt.exe	21

System Location Discovery: System Language Discovery 1 TTPs 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ecoco.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
2724	ecoco.exe
2724	ecoco.exe
2652	ecoco.exe
2652	ecoco.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe
2928	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2652	ecoco.exe
2652	ecoco.exe
2652	ecoco.exe
2928	msdt.exe
2928	msdt.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe
Token: SeDebugPrivilege	2724	ecoco.exe
Token: SeDebugPrivilege	2652	ecoco.exe
Token: SeDebugPrivilege	2928	msdt.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2468	2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	30
PID 2520 wrote to memory of 2468	2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	30
PID 2520 wrote to memory of 2468	2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	30
PID 2520 wrote to memory of 2468	2520	ea2729d917d24f794e57dc27a5edbb6d_JaffaCakes118.exe	30
PID 2468 wrote to memory of 2724	2468	cmd.exe	32
PID 2468 wrote to memory of 2724	2468	cmd.exe	32
PID 2468 wrote to memory of 2724	2468	cmd.exe	32
PID 2468 wrote to memory of 2724	2468	cmd.exe	32
PID 2724 wrote to memory of 2744	2724	ecoco.exe	33
PID 2724 wrote to memory of 2744	2724	ecoco.exe	33
PID 2724 wrote to memory of 2744	2724	ecoco.exe	33
PID 2724 wrote to memory of 2744	2724	ecoco.exe	33
PID 2744 wrote to memory of 2916	2744	cmd.exe	35
PID 2744 wrote to memory of 2916	2744	cmd.exe	35
PID 2744 wrote to memory of 2916	2744	cmd.exe	35
PID 2744 wrote to memory of 2916	2744	cmd.exe	35
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 2724 wrote to memory of 2652	2724	ecoco.exe	36
PID 1196 wrote to memory of 2928	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2928	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2928	1196	Explorer.EXE	37
PID 1196 wrote to memory of 2928	1196	Explorer.EXE	37
PID 2928 wrote to memory of 2628	2928	msdt.exe	38
PID 2928 wrote to memory of 2628	2928	msdt.exe	38
PID 2928 wrote to memory of 2628	2928	msdt.exe	38
PID 2928 wrote to memory of 2628	2928	msdt.exe	38

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- 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:2520
- - C:\Windows\SysWOW64\cmd.exe
    "cmd"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2468
  - - 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:2724
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2744
      - 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:2916
    - - 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:2652
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:2928
- - 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:2628

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

Discovery

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\Windows\Start Menu\Programs\Startup\ecoco.exe

Filesize
305KB

MD5
ea2729d917d24f794e57dc27a5edbb6d

SHA1
4acbd39f6c95793feb9c7e52f256274aa8c02e80

SHA256
184365416efed1893465d9c1dc0e59aab43f3b6dba54e7e51434ed240c43799b

SHA512
8d9a5d455dbd4e71a5a642a2dff2701fb9fecde0c875e17980533496ae4d9adc845ea3bf930cb3c03c9bd455bc40d444f827b500bb185d99baceaf258ac26f96

Download Submit
memory/1196-24-0x0000000003A60000-0x0000000003B60000-memory.dmp

Filesize
1024KB

Download
memory/2520-0-0x0000000074001000-0x0000000074002000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2520-2-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2520-8-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2652-13-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2652-19-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2652-15-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2652-21-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/2652-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-25-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2724-12-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-10-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-9-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-23-0x0000000074000000-0x00000000745AB000-memory.dmp

Filesize
5.7MB

Download
memory/2928-26-0x0000000000AC0000-0x0000000000BB4000-memory.dmp

Filesize
976KB

Download