formbook | e71411a441adaeb572af1b3e9c9a28616bc952ad94def8b4da216d38dd6fee6a

General

Target

invoice copypdf.exe
Size

408KB
MD5

d9ae02ae949ec2aba95cda647fe09240
SHA1

3858a6e45d0031fcbd9081dee453fdf196cc95a4
SHA256

75a0f38d45e726a70992f82304bfb85b127c37e591c02c59fe5750d308a95bd6
SHA512

f724c3ab608fdd6393147a2534d035b2211848efc091bcf73fb20ef2476a1705df9a423ccfe732903b8ed4fd6bef1d361e9881d5c767089ae2f5377049c97a46
SSDEEP

12288:KnzmVzil201tDwa2rGcLSY5ndlqChvqeA:KnzmVzK5S0cLSY5ndlqov

Score

10^/10

formbook mnf rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

mnf

Decoy

freeedomfencemn.com

corse-pollens.com

gellyc.com

mindplusgrind.com

gzrikang.com

horukac.com

aswaqina.com

lawofficeofjimhankey.com

everyoneshoroscope.com

freisaq.com

khimyoga.com

usmarketingdigital.com

artistagospel.com

stop-moskitos.com

sertecbasicos.com

mvmontessori.net

duke-a-website.com

arcaneunlocked.com

turnershydrographics.com

bipbopbling.com

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2716-16-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2716-19-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2716-26-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1664 cmd.exe

pid	process
1664	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

invoice copypdf.exeinvoice copypdf.execmstp.exe

description	pid	process	target process
PID 2968 set thread context of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2716 set thread context of 1180	2716	invoice copypdf.exe	Explorer.EXE
PID 2716 set thread context of 1180	2716	invoice copypdf.exe	Explorer.EXE
PID 332 set thread context of 1180	332	cmstp.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2980 schtasks.exe

pid	process
2980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

invoice copypdf.exeinvoice copypdf.execmstp.exe

pid	process
2968	invoice copypdf.exe
2968	invoice copypdf.exe
2968	invoice copypdf.exe
2716	invoice copypdf.exe
2716	invoice copypdf.exe
2716	invoice copypdf.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe
332	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

invoice copypdf.execmstp.exe

pid process

2716 invoice copypdf.exe
2716 invoice copypdf.exe
2716 invoice copypdf.exe
2716 invoice copypdf.exe
332 cmstp.exe
332 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

invoice copypdf.exeinvoice copypdf.execmstp.exe

description pid process

Token: SeDebugPrivilege 2968 invoice copypdf.exe
Token: SeDebugPrivilege 2716 invoice copypdf.exe
Token: SeDebugPrivilege 332 cmstp.exe

pid	process
2716	invoice copypdf.exe
2716	invoice copypdf.exe
2716	invoice copypdf.exe
2716	invoice copypdf.exe
332	cmstp.exe
332	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	2968	invoice copypdf.exe
Token: SeDebugPrivilege	2716	invoice copypdf.exe
Token: SeDebugPrivilege	332	cmstp.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

invoice copypdf.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 2968 wrote to memory of 2980	2968	invoice copypdf.exe	schtasks.exe
PID 2968 wrote to memory of 2980	2968	invoice copypdf.exe	schtasks.exe
PID 2968 wrote to memory of 2980	2968	invoice copypdf.exe	schtasks.exe
PID 2968 wrote to memory of 2980	2968	invoice copypdf.exe	schtasks.exe
PID 2968 wrote to memory of 2636	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2636	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2636	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2636	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2472	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2472	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2472	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2472	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 2968 wrote to memory of 2716	2968	invoice copypdf.exe	invoice copypdf.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 1180 wrote to memory of 332	1180	Explorer.EXE	cmstp.exe
PID 332 wrote to memory of 1664	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1664	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1664	332	cmstp.exe	cmd.exe
PID 332 wrote to memory of 1664	332	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2968

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nojDVIgkBT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3830.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2980

C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe"
3⤵
PID:2636

C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe"
3⤵
PID:2472

C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2716

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:332

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\invoice copypdf.exe"
3⤵
- Deletes itself
PID:1664

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3830.tmp
Filesize
1KB

MD5
e7809a4bf4812104fbf0823d36e5f1a3

SHA1
cda4290ba9b34e8531e7085ecdaf328149ce6222

SHA256
cf38292505633220d70beecd9a766bc94e186d30c427005594c1e6b6999ca625

SHA512
ef9443182d38aa826b9ffe32aff97a9cccd856e322a04261258da8ebfcbcb1fe914ec49d4d9a3b3a2370267465e7b284b0a2c5a7f2536e0a898e3cfda86589df

Download Submit
memory/332-30-0x0000000000430000-0x0000000000448000-memory.dmp

Filesize
96KB

Download
memory/332-29-0x0000000000430000-0x0000000000448000-memory.dmp

Filesize
96KB

Download
memory/1180-21-0x0000000002FF0000-0x00000000030F0000-memory.dmp

Filesize
1024KB

Download
memory/1180-34-0x0000000006E30000-0x0000000006FCC000-memory.dmp

Filesize
1.6MB

Download
memory/1180-28-0x0000000006E30000-0x0000000006FCC000-memory.dmp

Filesize
1.6MB

Download
memory/1180-25-0x0000000005010000-0x0000000005131000-memory.dmp

Filesize
1.1MB

Download
memory/1180-22-0x0000000005010000-0x0000000005131000-memory.dmp

Filesize
1.1MB

Download
memory/2716-17-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2716-27-0x0000000000610000-0x0000000000624000-memory.dmp

Filesize
80KB

Download
memory/2716-26-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2716-20-0x00000000002B0000-0x00000000002C4000-memory.dmp

Filesize
80KB

Download
memory/2716-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2716-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2716-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2716-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2716-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2968-4-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2968-23-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2968-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/2968-3-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2968-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2968-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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