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

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exeaspnet_compiler.exewlanext.exe

description	pid	process	target process
PID 1652 set thread context of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 3600 set thread context of 2424	3600	aspnet_compiler.exe	Explorer.EXE
PID 236 set thread context of 2424	236	wlanext.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

Processes:

aspnet_compiler.exePowershell.exewlanext.exe

pid	process
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
3600	aspnet_compiler.exe
4496	Powershell.exe
4496	Powershell.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe
236	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2424 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

aspnet_compiler.exewlanext.exe

pid process

3600 aspnet_compiler.exe
3600 aspnet_compiler.exe
3600 aspnet_compiler.exe
236 wlanext.exe
236 wlanext.exe
236 wlanext.exe
236 wlanext.exe

pid	process
2424	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

tmp.exeaspnet_compiler.exePowershell.exewlanext.exe

description	pid	process
Token: SeDebugPrivilege	1652	tmp.exe
Token: SeDebugPrivilege	3600	aspnet_compiler.exe
Token: SeDebugPrivilege	4496	Powershell.exe
Token: SeDebugPrivilege	236	wlanext.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 1652 wrote to memory of 4496	1652	tmp.exe	Powershell.exe
PID 1652 wrote to memory of 4496	1652	tmp.exe	Powershell.exe
PID 1652 wrote to memory of 4496	1652	tmp.exe	Powershell.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 1652 wrote to memory of 3600	1652	tmp.exe	aspnet_compiler.exe
PID 2424 wrote to memory of 236	2424	Explorer.EXE	wlanext.exe
PID 2424 wrote to memory of 236	2424	Explorer.EXE	wlanext.exe
PID 2424 wrote to memory of 236	2424	Explorer.EXE	wlanext.exe
PID 236 wrote to memory of 4392	236	wlanext.exe	Firefox.exe
PID 236 wrote to memory of 4392	236	wlanext.exe	Firefox.exe
PID 236 wrote to memory of 4392	236	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2424

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:1652

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:4496

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
PID:3600

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:236

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4392

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

Replay Monitor

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Downloads

memory/236-161-0x0000000000D80000-0x0000000000DAD000-memory.dmp

Filesize
180KB

Download
memory/236-160-0x00000000014E0000-0x000000000156F000-memory.dmp

Filesize
572KB

Download
memory/236-156-0x0000000000D80000-0x0000000000DAD000-memory.dmp

Filesize
180KB

Download
memory/236-155-0x0000000001710000-0x0000000001A5A000-memory.dmp

Filesize
3.3MB

Download
memory/236-154-0x00000000000D0000-0x00000000000E7000-memory.dmp

Filesize
92KB

Download
memory/236-151-0x0000000000000000-mapping.dmp

Download
memory/1652-133-0x0000000005140000-0x00000000056E4000-memory.dmp

Filesize
5.6MB

Download
memory/1652-134-0x0000000004C30000-0x0000000004CCC000-memory.dmp

Filesize
624KB

Download
memory/1652-132-0x0000000000090000-0x00000000000EA000-memory.dmp

Filesize
360KB

Download
memory/2424-149-0x0000000008D50000-0x0000000008EC7000-memory.dmp

Filesize
1.5MB

Download
memory/2424-163-0x0000000009190000-0x00000000092F6000-memory.dmp

Filesize
1.4MB

Download
memory/2424-162-0x0000000009190000-0x00000000092F6000-memory.dmp

Filesize
1.4MB

Download
memory/3600-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3600-147-0x0000000001220000-0x000000000156A000-memory.dmp

Filesize
3.3MB

Download
memory/3600-148-0x00000000011E0000-0x00000000011F0000-memory.dmp

Filesize
64KB

Download
memory/3600-136-0x0000000000000000-mapping.dmp

Download
memory/3600-137-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3600-142-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/3600-152-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3600-153-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4496-141-0x0000000005A10000-0x0000000006038000-memory.dmp

Filesize
6.2MB

Download
memory/4496-143-0x0000000005610000-0x0000000005632000-memory.dmp

Filesize
136KB

Download
memory/4496-145-0x00000000057B0000-0x0000000005816000-memory.dmp

Filesize
408KB

Download
memory/4496-157-0x00000000077A0000-0x0000000007836000-memory.dmp

Filesize
600KB

Download
memory/4496-158-0x0000000006C90000-0x0000000006CAA000-memory.dmp

Filesize
104KB

Download
memory/4496-159-0x0000000006CE0000-0x0000000006D02000-memory.dmp

Filesize
136KB

Download
memory/4496-139-0x0000000002DB0000-0x0000000002DE6000-memory.dmp

Filesize
216KB

Download
memory/4496-150-0x00000000067D0000-0x00000000067EE000-memory.dmp

Filesize
120KB

Download
memory/4496-146-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/4496-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads