formbook | 15eb688bffed96b0b324724e48b258dc6c6deb76d71310b26b01e1e12f26108c

General

Target

tmp.exe
Size

342KB
MD5

7569ad8644074e28a6a9dba38e67b95a
SHA1

10e73d912b5a6955161213a5f9004988ca4030ac
SHA256

15eb688bffed96b0b324724e48b258dc6c6deb76d71310b26b01e1e12f26108c
SHA512

15fe965c6e8abeff8f9b064122be640a78ca459a45c06f0f99150f979909208ca66693fc96808dca007670a3ace96f32b375b6a591efdb10dc9d9e8b824cb3ae
SSDEEP

6144:+wN/Qnu418i2BYc5lUeE+zjevK5FV0L3Tzz6oVCVdKrLWeuJavoJ8L:+O/Au4j0Yc5lUJXveUCi/f/

Score

10^/10

formbook f4ca rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

f4ca

Decoy

QYZ6iE9Y+CsiZpCBareS0uU=

N2FQLAaH6xXE

Vc6t0MQXN+Llxsqg

ElBedmSvYGGm6yLDhHqzAtmlCxWl

4VpIWShqHR5cpjfQ4bs=

mepO9miu/iFiQQ==

Z8Owqh54IlwEpDfQ4bs=

qcq4uT5HecWZG3EVwKTiUE7slrGQGiyo

IaYYoJikKDDqgV/NigZCLA==

4Xz5pfoCCW/76NnOUrFEOw==

xiijSkVJ3Yuh9OKDcmui/d2lCxWl

cr8MmfpCEu0ULsO3p6w=

JLm2yKHo7hdVb8O3p6w=

Hriy5svWm2Qfq9mPQib9jJI65gOr

2G3nkRpidunlxsqg

gPHUAeXmi8Q9ARy3

6l5WaOf8BxhQDkp5gKQ=

KHHiXs4WOqXZdPhpaw==

+UQ5Vz5O0Ms9ARy3

pNQygKu0OziAvjOHRGLnJA==

Signatures

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

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\%Namee%	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\%Namee%	Powershell.exe

Loads dropped DLL 1 IoCs

Processes:

mstsc.exe

pid process

320 mstsc.exe

pid	process
320	mstsc.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

tmp.exeaspnet_compiler.exemstsc.exe

description	pid	process	target process
PID 1972 set thread context of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1516 set thread context of 1224	1516	aspnet_compiler.exe	Explorer.EXE
PID 1516 set thread context of 1224	1516	aspnet_compiler.exe	Explorer.EXE
PID 320 set thread context of 1224	320	mstsc.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

Powershell.exeaspnet_compiler.exemstsc.exe

pid	process
612	Powershell.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

aspnet_compiler.exemstsc.exe

pid	process
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
1516	aspnet_compiler.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe
320	mstsc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

tmp.exePowershell.exeaspnet_compiler.exemstsc.exe

description	pid	process
Token: SeDebugPrivilege	1972	tmp.exe
Token: SeDebugPrivilege	612	Powershell.exe
Token: SeDebugPrivilege	1516	aspnet_compiler.exe
Token: SeDebugPrivilege	320	mstsc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1224 Explorer.EXE
1224 Explorer.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

pid	process
1224	Explorer.EXE
1224	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

tmp.exeaspnet_compiler.exemstsc.exe

description	pid	process	target process
PID 1972 wrote to memory of 612	1972	tmp.exe	Powershell.exe
PID 1972 wrote to memory of 612	1972	tmp.exe	Powershell.exe
PID 1972 wrote to memory of 612	1972	tmp.exe	Powershell.exe
PID 1972 wrote to memory of 612	1972	tmp.exe	Powershell.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1972 wrote to memory of 1516	1972	tmp.exe	aspnet_compiler.exe
PID 1516 wrote to memory of 320	1516	aspnet_compiler.exe	mstsc.exe
PID 1516 wrote to memory of 320	1516	aspnet_compiler.exe	mstsc.exe
PID 1516 wrote to memory of 320	1516	aspnet_compiler.exe	mstsc.exe
PID 1516 wrote to memory of 320	1516	aspnet_compiler.exe	mstsc.exe
PID 320 wrote to memory of 1332	320	mstsc.exe	Firefox.exe
PID 320 wrote to memory of 1332	320	mstsc.exe	Firefox.exe
PID 320 wrote to memory of 1332	320	mstsc.exe	Firefox.exe
PID 320 wrote to memory of 1332	320	mstsc.exe	Firefox.exe
PID 320 wrote to memory of 1332	320	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1224

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\tmp.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\%Namee%'
3⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:612

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
4⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:320

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
5⤵
PID:1332

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
949KB

MD5
38a3e021eb32c9976adaf0b3372080fc

SHA1
68e02803c646be21007d90bec841c176b82211fd

SHA256
8cde0275d60da0d11954f73c7c8862cfc4b306f61bb8b1ce14abe4a193af2652

SHA512
b886cc112f2750e7300b66f7242850659fa49fdc97f75aed376cb9f5440875f303a143bf8b51068ec42674f1ebe1dfcc40534f3a7aed3cc4d20f9274b9a66d18

Download Submit
memory/320-81-0x0000000000D70000-0x0000000000E74000-memory.dmp

Filesize
1.0MB

Download
memory/320-86-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/320-84-0x00000000009C0000-0x0000000000A4F000-memory.dmp

Filesize
572KB

Download
memory/320-83-0x0000000002280000-0x0000000002583000-memory.dmp

Filesize
3.0MB

Download
memory/320-82-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/320-77-0x0000000000000000-mapping.dmp

Download
memory/612-57-0x0000000000000000-mapping.dmp

Download
memory/612-69-0x0000000070030000-0x00000000705DB000-memory.dmp

Filesize
5.7MB

Download
memory/612-73-0x0000000070030000-0x00000000705DB000-memory.dmp

Filesize
5.7MB

Download
memory/1224-87-0x0000000006CB0000-0x0000000006DE5000-memory.dmp

Filesize
1.2MB

Download
memory/1224-85-0x0000000006CB0000-0x0000000006DE5000-memory.dmp

Filesize
1.2MB

Download
memory/1224-72-0x0000000006270000-0x00000000063A5000-memory.dmp

Filesize
1.2MB

Download
memory/1224-76-0x0000000006B70000-0x0000000006CA2000-memory.dmp

Filesize
1.2MB

Download
memory/1516-71-0x0000000000160000-0x0000000000170000-memory.dmp

Filesize
64KB

Download
memory/1516-79-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1516-70-0x00000000008B0000-0x0000000000BB3000-memory.dmp

Filesize
3.0MB

Download
memory/1516-75-0x0000000000220000-0x0000000000230000-memory.dmp

Filesize
64KB

Download
memory/1516-68-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1516-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1516-80-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1516-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1516-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1516-64-0x00000000004012B0-mapping.dmp

Download
memory/1516-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1516-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1972-54-0x0000000000E60000-0x0000000000EBA000-memory.dmp

Filesize
360KB

Download
memory/1972-58-0x0000000000560000-0x000000000057C000-memory.dmp

Filesize
112KB

Download
memory/1972-56-0x0000000075501000-0x0000000075503000-memory.dmp

Filesize
8KB

Download
memory/1972-55-0x00000000004F0000-0x000000000053A000-memory.dmp

Filesize
296KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads