formbook | 2964b725bf668d3b3d2be36129a7ca7a0ccac045bec7d5caedcc23ce0757c204

Analysis

max time kernel
148s
max time network
121s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 09:05

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General

Target

PO112233412.exe
Size

751KB
MD5

815a25002b66d17e307df75375b417b0
SHA1

8804e3818bd5a3653290e6cb9210968acfdfe5b8
SHA256

8aade6fb268d4593e9ebafc70c4d316b28278fb365a31b20be871741bc458aa1
SHA512

a63a1a437e6af3e33b3c0e179969e555a0428b6adf379f35316c98a5455397ba76a0d6c529c79df3689f2f5d7d49d18af8c702d7a190ed866fdac1fbed4b38f0
SSDEEP

12288:AxOcXL6oM5j7DUVNNCDdq1fA2zTGyQnch3p9qUy+VFcQRoqnNPg9DogsHxL45sCs:0L6ZvRBqZR6cn

Score

10^/10

formbook discovery rat spyware stealer trojan

Malware Config

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2900-14-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2900-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2900-22-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2448-27-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1988	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2316 set thread context of 2900	2316	PO112233412.exe	31
PID 2900 set thread context of 1144	2900	PO112233412.exe	20
PID 2900 set thread context of 1144	2900	PO112233412.exe	20
PID 2448 set thread context of 1144	2448	systray.exe	20

System Location Discovery: System Language Discovery 1 TTPs 3 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	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO112233412.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2900	PO112233412.exe
2900	PO112233412.exe
2900	PO112233412.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe
2448	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2900	PO112233412.exe
2900	PO112233412.exe
2900	PO112233412.exe
2900	PO112233412.exe
2448	systray.exe
2448	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	PO112233412.exe
Token: SeDebugPrivilege	2448	systray.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 2316 wrote to memory of 2900	2316	PO112233412.exe	31
PID 1144 wrote to memory of 2448	1144	Explorer.EXE	65
PID 1144 wrote to memory of 2448	1144	Explorer.EXE	65
PID 1144 wrote to memory of 2448	1144	Explorer.EXE	65
PID 1144 wrote to memory of 2448	1144	Explorer.EXE	65
PID 2448 wrote to memory of 1988	2448	systray.exe	66
PID 2448 wrote to memory of 1988	2448	systray.exe	66
PID 2448 wrote to memory of 1988	2448	systray.exe	66
PID 2448 wrote to memory of 1988	2448	systray.exe	66

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Local\Temp\PO112233412.exe
  "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Users\Admin\AppData\Local\Temp\PO112233412.exe
    "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2900
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2720
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2384
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2748
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2772
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2784
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1048
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2432
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1060
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1204
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2136
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2292
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:808
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:728
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1868
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:376
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:920
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1908
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1808
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1200
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2004
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1848
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1408
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1476
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:860
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1248
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2060
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1588
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1956
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:928
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2068
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2176
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2144
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1216
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2448
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\PO112233412.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1144-20-0x00000000050F0000-0x000000000524E000-memory.dmp

Filesize
1.4MB

Download
memory/1144-30-0x00000000067A0000-0x00000000068CE000-memory.dmp

Filesize
1.2MB

Download
memory/1144-25-0x00000000067A0000-0x00000000068CE000-memory.dmp

Filesize
1.2MB

Download
memory/1144-24-0x00000000050F0000-0x000000000524E000-memory.dmp

Filesize
1.4MB

Download
memory/2316-6-0x0000000001F90000-0x0000000001FE6000-memory.dmp

Filesize
344KB

Download
memory/2316-3-0x0000000000370000-0x0000000000380000-memory.dmp

Filesize
64KB

Download
memory/2316-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2316-7-0x00000000043A0000-0x00000000043D6000-memory.dmp

Filesize
216KB

Download
memory/2316-1-0x0000000000AC0000-0x0000000000B82000-memory.dmp

Filesize
776KB

Download
memory/2316-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2316-15-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2316-5-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2316-4-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2448-27-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/2448-26-0x0000000000930000-0x0000000000935000-memory.dmp

Filesize
20KB

Download
memory/2900-16-0x0000000000B90000-0x0000000000E93000-memory.dmp

Filesize
3.0MB

Download
memory/2900-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-23-0x0000000000260000-0x0000000000274000-memory.dmp

Filesize
80KB

Download
memory/2900-19-0x00000000001C0000-0x00000000001D4000-memory.dmp

Filesize
80KB

Download
memory/2900-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2900-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download