formbook | ac4d23b56b2aac65756dafc7d6ff505ba986f40410370ca4c094f0530e399d79

General

Target

REVISED INVOICE DETAILS.exe
Size

1.2MB
MD5

f085c3358b59f0f7233e460816b9cffd
SHA1

1fa9928211033fd8afadc910e5acbd608d2686d1
SHA256

ac4d23b56b2aac65756dafc7d6ff505ba986f40410370ca4c094f0530e399d79
SHA512

88525849adc8ea59bf90a3e95d284b66514e24a955f059d1be29eab26e9d052d6dcd353668a3330055478b5c982ce508a8aa2aabe42dfc99979c9a4a70637d43

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.fabricwarehousebrla.com/mjf5/

Decoy

scxmarine.com

4week-keto-results.com

alllivesmattertojesus.info

stoxets.com

psm-gen.com

u2collect.com

steveandgail.com

dgemediagroup.com

ragsxghi.com

hirobasushinv.com

fcvlamingo.com

thebrownseaproject.com

achalaproductions.com

unstoppableinvesting.com

epay12303.com

polenmoda.com

pgpitagi.com

picksfacts.com

allhubph.com

negociandocomvocebr.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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral1/memory/1048-63-0x0000000000430000-0x000000000043B000-memory.dmp	CustAttr

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1516-68-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1516-69-0x000000000041EDB0-mapping.dmp	formbook
behavioral1/memory/1872-76-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

620 cmd.exe

pid	process
620	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

REVISED INVOICE DETAILS.exeREVISED INVOICE DETAILS.exesystray.exe

description	pid	process	target process
PID 1048 set thread context of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1516 set thread context of 1196	1516	REVISED INVOICE DETAILS.exe	Explorer.EXE
PID 1872 set thread context of 1196	1872	systray.exe	Explorer.EXE

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

728 schtasks.exe

pid	process
728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

REVISED INVOICE DETAILS.exeREVISED INVOICE DETAILS.exesystray.exe

pid	process
1048	REVISED INVOICE DETAILS.exe
1516	REVISED INVOICE DETAILS.exe
1516	REVISED INVOICE DETAILS.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe
1872	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

REVISED INVOICE DETAILS.exesystray.exe

pid process

1516 REVISED INVOICE DETAILS.exe
1516 REVISED INVOICE DETAILS.exe
1516 REVISED INVOICE DETAILS.exe
1872 systray.exe
1872 systray.exe

pid	process
1516	REVISED INVOICE DETAILS.exe
1516	REVISED INVOICE DETAILS.exe
1516	REVISED INVOICE DETAILS.exe
1872	systray.exe
1872	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

REVISED INVOICE DETAILS.exeREVISED INVOICE DETAILS.exesystray.exe

description	pid	process
Token: SeDebugPrivilege	1048	REVISED INVOICE DETAILS.exe
Token: SeDebugPrivilege	1516	REVISED INVOICE DETAILS.exe
Token: SeDebugPrivilege	1872	systray.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

REVISED INVOICE DETAILS.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1048 wrote to memory of 728	1048	REVISED INVOICE DETAILS.exe	schtasks.exe
PID 1048 wrote to memory of 728	1048	REVISED INVOICE DETAILS.exe	schtasks.exe
PID 1048 wrote to memory of 728	1048	REVISED INVOICE DETAILS.exe	schtasks.exe
PID 1048 wrote to memory of 728	1048	REVISED INVOICE DETAILS.exe	schtasks.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1048 wrote to memory of 1516	1048	REVISED INVOICE DETAILS.exe	REVISED INVOICE DETAILS.exe
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	systray.exe
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	systray.exe
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	systray.exe
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	systray.exe
PID 1872 wrote to memory of 620	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 620	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 620	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 620	1872	systray.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:1196

C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE DETAILS.exe
"C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE DETAILS.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dONWcNjO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp98B7.tmp"
3⤵
- Creates scheduled task(s)
PID:728

C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE DETAILS.exe
"C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE DETAILS.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1516

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1872

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE DETAILS.exe"
3⤵
- Deletes itself
PID:620

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp98B7.tmp
MD5
15e14982e16b73748120c450c2842a2f

SHA1
1a2c84265c2c157a1ceda8532a00c3b807001916

SHA256
d00792295895a31106cfa9d197474812bb33895c376ec5e0b26989c2ed736893

SHA512
1d84a041259e885470a9c8516611b5caec90b9b24f7e05d554076bf458c82e2cd132bf570c34111cf13c6625049e8eb9b85c19e948ca604295c3b7c893dd38ae

Download Submit
memory/620-74-0x0000000000000000-mapping.dmp

Download
memory/728-66-0x0000000000000000-mapping.dmp

Download
memory/1048-62-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download
memory/1048-63-0x0000000000430000-0x000000000043B000-memory.dmp

Filesize
44KB

Download
memory/1048-64-0x0000000005A90000-0x0000000005B0A000-memory.dmp

Filesize
488KB

Download
memory/1048-65-0x0000000000A90000-0x0000000000AC5000-memory.dmp

Filesize
212KB

Download
memory/1048-60-0x00000000011D0000-0x00000000011D1000-memory.dmp

Filesize
4KB

Download
memory/1196-72-0x0000000004CA0000-0x0000000004E26000-memory.dmp

Filesize
1.5MB

Download
memory/1196-79-0x0000000003E10000-0x0000000003EE2000-memory.dmp

Filesize
840KB

Download
memory/1516-69-0x000000000041EDB0-mapping.dmp

Download
memory/1516-70-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/1516-71-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/1516-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1872-73-0x0000000000000000-mapping.dmp

Download
memory/1872-75-0x0000000000250000-0x0000000000255000-memory.dmp

Filesize
20KB

Download
memory/1872-77-0x0000000001DD0000-0x00000000020D3000-memory.dmp

Filesize
3.0MB

Download
memory/1872-76-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1872-78-0x0000000002180000-0x0000000002213000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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