formbook | a4bf92333fa0839d92c30859f87f08f91f988c35dd30227c2b4fe60e7188a4a2

General

Target

Untitled attachment 00075.exe
Size

938KB
MD5

8cad21a8377f81f6647fac069ff6222d
SHA1

c06845f662d64492d4c4df1a6c506d20bebda40d
SHA256

a4bf92333fa0839d92c30859f87f08f91f988c35dd30227c2b4fe60e7188a4a2
SHA512

e6373bc79be0361d0fe60456a466f620d476e706770ebd15fc17ca3ee28b7b12d09eb70e3caf5ea3db8d4b778822e6830fc9ffe0c1d3e90fa6e01f4438c95a12

Score

10^/10

formbook n7ak persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

C2

http://www.kmresults.com/n7ak/

Decoy

modischoolcbse.com

theneverwinter.com

rszkjx-vps-hosting.website

fnihil.com

1pbet.com

nnowzscorrez.com

uaotgvjl.icu

starmapsqatar.com

ekisilani.com

extradeepsheets.com

jam-nins.com

buranly.com

orixentertainment.com

rawtech.energy

myol.guru

utex.club

jiapie.com

wowig.store

wweidlyyl.com

systaskautomation.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

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1512-66-0x0000000000000000-mapping.dmp	formbook
behavioral1/memory/1512-69-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1512-74-0x0000000072480000-0x00000000724AE000-memory.dmp	formbook
behavioral1/memory/1800-80-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Untitled attachment 00075.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fntqlbt = "C:\\Users\\Public\\Libraries\\tblqtnF.url"	Untitled attachment 00075.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

mobsync.exesystray.exe

description	pid	process	target process
PID 1512 set thread context of 1228	1512	mobsync.exe	Explorer.EXE
PID 1512 set thread context of 1228	1512	mobsync.exe	Explorer.EXE
PID 1800 set thread context of 1228	1800	systray.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

mobsync.exesystray.exe

pid	process
1512	mobsync.exe
1512	mobsync.exe
1512	mobsync.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe
1800	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

mobsync.exesystray.exe

pid process

1512 mobsync.exe
1512 mobsync.exe
1512 mobsync.exe
1512 mobsync.exe
1800 systray.exe
1800 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mobsync.exesystray.exe

description pid process

Token: SeDebugPrivilege 1512 mobsync.exe
Token: SeDebugPrivilege 1800 systray.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE

pid	process
1228	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1512	mobsync.exe
Token: SeDebugPrivilege	1800	systray.exe

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Untitled attachment 00075.exemobsync.exesystray.exe

description	pid	process	target process
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1908 wrote to memory of 1512	1908	Untitled attachment 00075.exe	mobsync.exe
PID 1512 wrote to memory of 1800	1512	mobsync.exe	systray.exe
PID 1512 wrote to memory of 1800	1512	mobsync.exe	systray.exe
PID 1512 wrote to memory of 1800	1512	mobsync.exe	systray.exe
PID 1512 wrote to memory of 1800	1512	mobsync.exe	systray.exe
PID 1800 wrote to memory of 1340	1800	systray.exe	cmd.exe
PID 1800 wrote to memory of 1340	1800	systray.exe	cmd.exe
PID 1800 wrote to memory of 1340	1800	systray.exe	cmd.exe
PID 1800 wrote to memory of 1340	1800	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1228

C:\Users\Admin\AppData\Local\Temp\Untitled attachment 00075.exe
"C:\Users\Admin\AppData\Local\Temp\Untitled attachment 00075.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1908

C:\Windows\SysWOW64\mobsync.exe
C:\Windows\System32\mobsync.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1512

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\mobsync.exe"
5⤵
PID:1340

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

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/1228-73-0x0000000004F40000-0x0000000005020000-memory.dmp

Filesize
896KB

Download
memory/1228-83-0x0000000006470000-0x0000000006557000-memory.dmp

Filesize
924KB

Download
memory/1228-76-0x00000000067D0000-0x0000000006924000-memory.dmp

Filesize
1.3MB

Download
memory/1340-78-0x0000000000000000-mapping.dmp

Download
memory/1512-75-0x0000000000230000-0x0000000000244000-memory.dmp

Filesize
80KB

Download
memory/1512-72-0x00000000001F0000-0x0000000000204000-memory.dmp

Filesize
80KB

Download
memory/1512-64-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1512-69-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1512-74-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1512-71-0x0000000002350000-0x0000000002653000-memory.dmp

Filesize
3.0MB

Download
memory/1512-63-0x0000000072480000-0x00000000724AE000-memory.dmp

Filesize
184KB

Download
memory/1512-66-0x0000000000000000-mapping.dmp

Download
memory/1512-68-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/1800-77-0x0000000000000000-mapping.dmp

Download
memory/1800-79-0x0000000000860000-0x0000000000865000-memory.dmp

Filesize
20KB

Download
memory/1800-80-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1800-81-0x00000000020D0000-0x00000000023D3000-memory.dmp

Filesize
3.0MB

Download
memory/1800-82-0x0000000000750000-0x00000000007E3000-memory.dmp

Filesize
588KB

Download
memory/1908-62-0x00000000003A1000-0x00000000003B5000-memory.dmp

Filesize
80KB

Download
memory/1908-60-0x0000000075B31000-0x0000000075B33000-memory.dmp

Filesize
8KB

Download
memory/1908-61-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads