formbook | 95e40490a7ab8bc996d2a8a42233563ed067317e7b54a4083808a0d77ee2a5f5

General

Target

kWxZdhzhxdbryQa.exe
Size

857KB
MD5

564298d99ec96cb82b246a8794de9b9b
SHA1

179c18e7891b967f9048e87362e21b26c73dc9d3
SHA256

95e40490a7ab8bc996d2a8a42233563ed067317e7b54a4083808a0d77ee2a5f5
SHA512

b1b012794842ae9cd72aca78679de8bd0b2c60a7cc0b6f0b4f69ca7a9c4b9210c28c4978d21dc33f5fef948f5ed7eb63302c4e0e822802aaac4d5b73d4920425

Score

10^/10

spyware trojan stealer formbook persistence

Malware Config

Signatures

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3768 set thread context of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 2680 set thread context of 3004	2680	kWxZdhzhxdbryQa.exe	56
PID 2872 set thread context of 3004	2872	msiexec.exe	56

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

Data from Local System
T1005

Credentials in Files
T1081

Adds Run entry to policy start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\HPPDVFZXPJC = "C:\\Program Files (x86)\\Bd2kdh\\px4mhupl8lx.exe"	msiexec.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	msiexec.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 2220	3768	kWxZdhzhxdbryQa.exe	72
PID 3768 wrote to memory of 2220	3768	kWxZdhzhxdbryQa.exe	72
PID 3768 wrote to memory of 2220	3768	kWxZdhzhxdbryQa.exe	72
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3768 wrote to memory of 2680	3768	kWxZdhzhxdbryQa.exe	74
PID 3004 wrote to memory of 2872	3004	Explorer.EXE	75
PID 3004 wrote to memory of 2872	3004	Explorer.EXE	75
PID 3004 wrote to memory of 2872	3004	Explorer.EXE	75
PID 2872 wrote to memory of 3736	2872	msiexec.exe	76
PID 2872 wrote to memory of 3736	2872	msiexec.exe	76
PID 2872 wrote to memory of 3736	2872	msiexec.exe	76
PID 2872 wrote to memory of 3980	2872	msiexec.exe	78
PID 2872 wrote to memory of 3980	2872	msiexec.exe	78
PID 2872 wrote to memory of 3980	2872	msiexec.exe	78

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2680	kWxZdhzhxdbryQa.exe
2680	kWxZdhzhxdbryQa.exe
2680	kWxZdhzhxdbryQa.exe
2872	msiexec.exe
2872	msiexec.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2220	schtasks.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Bd2kdh\px4mhupl8lx.exe	msiexec.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	kWxZdhzhxdbryQa.exe
Token: SeDebugPrivilege	2872	msiexec.exe
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE
Token: SeShutdownPrivilege	3004	Explorer.EXE
Token: SeCreatePagefilePrivilege	3004	Explorer.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3004	Explorer.EXE

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3004	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1231583446-2617009595-2137880041-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
2680	kWxZdhzhxdbryQa.exe
2680	kWxZdhzhxdbryQa.exe
2680	kWxZdhzhxdbryQa.exe
2680	kWxZdhzhxdbryQa.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe
2872	msiexec.exe

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3004
- C:\Users\Admin\AppData\Local\Temp\kWxZdhzhxdbryQa.exe
  "C:\Users\Admin\AppData\Local\Temp\kWxZdhzhxdbryQa.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3768
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jdjIVjDa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1591.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2220
- - C:\Users\Admin\AppData\Local\Temp\kWxZdhzhxdbryQa.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: EnumeratesProcesses
    PID:2680
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Adds Run entry to policy start application
  - System policy modification
  - Suspicious use of WriteProcessMemory
  - Suspicious behavior: MapViewOfSection
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  PID:2872
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\kWxZdhzhxdbryQa.exe"
    3⤵
    PID:3736
- - 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⤵
    PID:3980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2680-2-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2872-6-0x0000000000FA0000-0x0000000000FB2000-memory.dmp

Filesize
72KB

Download
memory/2872-5-0x0000000000FA0000-0x0000000000FB2000-memory.dmp

Filesize
72KB

Download
memory/3004-9-0x00000000056B0000-0x0000000005815000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads