formbook | 05cc69997ae6897d3f8f4da1d720f027e388a4dd7481b8c23e60c1ac84729b55

General

Target

sipari? pdf.exe
Size

465KB
MD5

2f54478ff3ea553fd34af1a0d207d704
SHA1

20a9f40fe6b15c8fe7de61b85a730e01c2b71661
SHA256

259275b0c056a9fec50378b2d268c48447e8ebe8827e8e55aae4484aba8b1939
SHA512

41212e6d4add91df9173ac0429f8f3532f98a2cd11418c5c0577f6784f31a4d411057cdd1a331f87ede1326a85f824184b7c1ee8106cd812ca6cecffb80bbc5f

Score

10^/10

formbook n7ak rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

audereventur.com

huro14.com

wwwjinsha155.com

antiquevendor.com

samuraisoulfood.net

traffic4updates.download

hypersarv.com

rapport-happy-wedding.com

rokutechnosupport.online

allworljob.com

hanaleedossmann.com

kauai-marathon.com

bepbosch.com

kangen-international.com

zoneshopemenowz.com

belviderewrestling.com

ipllink.com

sellingforcreators.com

wwwswty6655.com

qtumboa.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/2016-57-0x00000000004B0000-0x00000000004B8000-memory.dmp	CustAttr

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/872-61-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/872-66-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral1/memory/692-70-0x00000000000C0000-0x00000000000ED000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1220 cmd.exe

pid	process
1220	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

sipari_ pdf.exesipari_ pdf.execscript.exe

description	pid	process	target process
PID 2016 set thread context of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 872 set thread context of 1376	872	sipari_ pdf.exe	Explorer.EXE
PID 872 set thread context of 1376	872	sipari_ pdf.exe	Explorer.EXE
PID 692 set thread context of 1376	692	cscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

sipari_ pdf.execscript.exe

pid process

872 sipari_ pdf.exe
872 sipari_ pdf.exe
872 sipari_ pdf.exe
692 cscript.exe
692 cscript.exe
692 cscript.exe
692 cscript.exe
692 cscript.exe
692 cscript.exe
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

sipari_ pdf.execscript.exe

pid process

872 sipari_ pdf.exe
872 sipari_ pdf.exe
872 sipari_ pdf.exe
872 sipari_ pdf.exe
692 cscript.exe
692 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

sipari_ pdf.execscript.exe

description pid process

Token: SeDebugPrivilege 872 sipari_ pdf.exe
Token: SeDebugPrivilege 692 cscript.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE

pid	process
872	sipari_ pdf.exe
872	sipari_ pdf.exe
872	sipari_ pdf.exe
692	cscript.exe
692	cscript.exe
692	cscript.exe
692	cscript.exe
692	cscript.exe
692	cscript.exe

pid	process
872	sipari_ pdf.exe
872	sipari_ pdf.exe
872	sipari_ pdf.exe
872	sipari_ pdf.exe
692	cscript.exe
692	cscript.exe

description	pid	process
Token: SeDebugPrivilege	872	sipari_ pdf.exe
Token: SeDebugPrivilege	692	cscript.exe

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

sipari_ pdf.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 2016 wrote to memory of 872	2016	sipari_ pdf.exe	sipari_ pdf.exe
PID 1376 wrote to memory of 692	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 692	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 692	1376	Explorer.EXE	cscript.exe
PID 1376 wrote to memory of 692	1376	Explorer.EXE	cscript.exe
PID 692 wrote to memory of 1220	692	cscript.exe	cmd.exe
PID 692 wrote to memory of 1220	692	cscript.exe	cmd.exe
PID 692 wrote to memory of 1220	692	cscript.exe	cmd.exe
PID 692 wrote to memory of 1220	692	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\sipari_ pdf.exe
"C:\Users\Admin\AppData\Local\Temp\sipari_ pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Local\Temp\sipari_ pdf.exe
"C:\Users\Admin\AppData\Local\Temp\sipari_ pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:872

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:692

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\sipari_ pdf.exe"
3⤵
- Deletes itself
PID:1220

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/692-69-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/692-72-0x0000000001D20000-0x0000000001DB3000-memory.dmp

Filesize
588KB

Download
memory/692-70-0x00000000000C0000-0x00000000000ED000-memory.dmp

Filesize
180KB

Download
memory/692-71-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/872-67-0x0000000000260000-0x0000000000274000-memory.dmp

Filesize
80KB

Download
memory/872-66-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/872-60-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/872-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/872-63-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/872-64-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/872-59-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1376-65-0x0000000006A10000-0x0000000006B87000-memory.dmp

Filesize
1.5MB

Download
memory/1376-68-0x0000000003A50000-0x0000000003B3B000-memory.dmp

Filesize
940KB

Download
memory/1376-73-0x0000000006B90000-0x0000000006CE7000-memory.dmp

Filesize
1.3MB

Download
memory/2016-54-0x0000000000FE0000-0x000000000105A000-memory.dmp

Filesize
488KB

Download
memory/2016-58-0x0000000004AF0000-0x0000000004B4A000-memory.dmp

Filesize
360KB

Download
memory/2016-57-0x00000000004B0000-0x00000000004B8000-memory.dmp

Filesize
32KB

Download
memory/2016-56-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/2016-55-0x00000000751B1000-0x00000000751B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads