formbook | 48e669e665d2f7fc227318a06f5be1c3f89b596f09be1dae7b996437c0e56e04

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7
submitted
22/07/2020, 09:18

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General

Target
sipariş.exe
Size 388KB
Sample200722-766962p7as
SHA256 48e669e665d2f7fc227318a06f5be1c3f89b596f09be1dae7b996437c0e56e04
MD5 83e92e806bb6177ca40a3dea32eb6c44
SHA1 5565ccb8f4ab5a2558fa21b6b1824bd1a37945b9
SHA512 26a63217e3fd23bf3c359fbf512655e567f8cb9e1d8cc60b8eaf4513d65fc0044e95181d683228b17ab9410d8609e0dfc7c044511ea4be0a88358ed633cd1579
MD5 SHA1 SHA512

Score

10^/10

persistence trojan spyware stealer formbook evasion

Malware Config

Signatures

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Xobcpor5\mfczpqlgb.exe	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1612 set thread context of 1884	1612	sipariş.exe	27
PID 1884 set thread context of 1256	1884	RegSvcs.exe	20
PID 1924 set thread context of 1256	1924	msiexec.exe	20

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1884	RegSvcs.exe
Token: SeDebugPrivilege	1924	msiexec.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1856	1612	sipariş.exe	25
PID 1612 wrote to memory of 1856	1612	sipariş.exe	25
PID 1612 wrote to memory of 1856	1612	sipariş.exe	25
PID 1612 wrote to memory of 1856	1612	sipariş.exe	25
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1612 wrote to memory of 1884	1612	sipariş.exe	27
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1256 wrote to memory of 1924	1256	Explorer.EXE	28
PID 1924 wrote to memory of 1948	1924	msiexec.exe	29
PID 1924 wrote to memory of 1948	1924	msiexec.exe	29
PID 1924 wrote to memory of 1948	1924	msiexec.exe	29
PID 1924 wrote to memory of 1948	1924	msiexec.exe	29
PID 1924 wrote to memory of 1608	1924	msiexec.exe	34
PID 1924 wrote to memory of 1608	1924	msiexec.exe	34
PID 1924 wrote to memory of 1608	1924	msiexec.exe	34
PID 1924 wrote to memory of 1608	1924	msiexec.exe	34
PID 1924 wrote to memory of 1608	1924	msiexec.exe	34

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1884	RegSvcs.exe
1884	RegSvcs.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe

Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	sipariş.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	sipariş.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

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

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\XX-DQXUH5L = "C:\\Program Files (x86)\\Xobcpor5\\mfczpqlgb.exe"	msiexec.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	sipariş.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	sipariş.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
1856	schtasks.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1884	RegSvcs.exe
1884	RegSvcs.exe
1884	RegSvcs.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe
1924	msiexec.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
- Checks whether UAC is enabled
- Suspicious use of SendNotifyMessage
- Suspicious use of FindShellTrayWindow
PID:1256
- C:\Users\Admin\AppData\Local\Temp\sipariş.exe
  "C:\Users\Admin\AppData\Local\Temp\sipariş.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  - Maps connected drives based on registry
  - Checks BIOS information in registry
  PID:1612
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nnAZLyFlUaWh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp99AF.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1856
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:1884
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Drops file in Program Files directory
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  - Suspicious behavior: EnumeratesProcesses
  - Adds Run key to start application
  - Suspicious behavior: MapViewOfSection
  PID:1924
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1948
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1608