formbook | 2cbb67b48b3162ce44c224d9230d58a4263e71a50ca82673477d2e14f7ae2087

General

Target

Irrazvdr.exe
Size

54KB
MD5

cedb27004e2fbaf88af7850aaf5133b0
SHA1

1ea8386b3a52bb32ae24f41ba0ef4f912eada74c
SHA256

2cbb67b48b3162ce44c224d9230d58a4263e71a50ca82673477d2e14f7ae2087
SHA512

3dd1a35ab8d59db4b933190906e9d039459c8d7e39849819d6ba9ac214f57f826bf6ab3342f132971b104016779035704efb1dd5e000af1419e83a0060a79521

Score

10^/10

formbook ca27 persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ca27

Decoy

sefacoin.com

rightvisionsecuritysystems.com

jthousing1509.com

bj-sfxh.com

fansdy.com

waltit.com

kgaelhp.icu

latil.sa.com

ethmerger.com

theunimarkgroup.com

51anb.com

betsinatra.com

asd3wuh.icu

vinissimo3gwen.xyz

supernewshub.site

asfq4ev.icu

nftstoremarketing.com

blondefitgal.com

zmsoftware-co.com

beedotech.net

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/588-61-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/588-62-0x000000000041F060-mapping.dmp	formbook
behavioral1/memory/588-67-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/588-71-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1872-74-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/1872-78-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Irrazvdr.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ozqvf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ovjur\\Ozqvf.exe\""	Irrazvdr.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Irrazvdr.exeInstallUtil.exesystray.exe

description	pid	process	target process
PID 1836 set thread context of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 588 set thread context of 1264	588	InstallUtil.exe	Explorer.EXE
PID 588 set thread context of 1264	588	InstallUtil.exe	Explorer.EXE
PID 1872 set thread context of 1264	1872	systray.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

Irrazvdr.exeInstallUtil.exesystray.exe

pid	process
1836	Irrazvdr.exe
588	InstallUtil.exe
588	InstallUtil.exe
588	InstallUtil.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
1872	systray.exe
1872	systray.exe
1872	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

InstallUtil.exesystray.exe

pid process

588 InstallUtil.exe
588 InstallUtil.exe
588 InstallUtil.exe
588 InstallUtil.exe
1872 systray.exe
1872 systray.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Irrazvdr.exeInstallUtil.exesystray.exe

description pid process

Token: SeDebugPrivilege 1836 Irrazvdr.exe
Token: SeDebugPrivilege 588 InstallUtil.exe
Token: SeDebugPrivilege 1872 systray.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1264 Explorer.EXE
1264 Explorer.EXE

pid	process
588	InstallUtil.exe
588	InstallUtil.exe
588	InstallUtil.exe
588	InstallUtil.exe
1872	systray.exe
1872	systray.exe

description	pid	process
Token: SeDebugPrivilege	1836	Irrazvdr.exe
Token: SeDebugPrivilege	588	InstallUtil.exe
Token: SeDebugPrivilege	1872	systray.exe

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

pid	process
1264	Explorer.EXE
1264	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Irrazvdr.exeInstallUtil.exesystray.exe

description	pid	process	target process
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 1836 wrote to memory of 588	1836	Irrazvdr.exe	InstallUtil.exe
PID 588 wrote to memory of 1872	588	InstallUtil.exe	systray.exe
PID 588 wrote to memory of 1872	588	InstallUtil.exe	systray.exe
PID 588 wrote to memory of 1872	588	InstallUtil.exe	systray.exe
PID 588 wrote to memory of 1872	588	InstallUtil.exe	systray.exe
PID 1872 wrote to memory of 1792	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 1792	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 1792	1872	systray.exe	cmd.exe
PID 1872 wrote to memory of 1792	1872	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1264

C:\Users\Admin\AppData\Local\Temp\Irrazvdr.exe
"C:\Users\Admin\AppData\Local\Temp\Irrazvdr.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:588

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:1872

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
5⤵
PID:1792

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

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Downloads

memory/588-68-0x00000000001F0000-0x0000000000205000-memory.dmp

Filesize
84KB

Download
memory/588-65-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/588-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-71-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/588-62-0x000000000041F060-mapping.dmp

Download
memory/588-64-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1264-77-0x0000000003E20000-0x0000000003EDA000-memory.dmp

Filesize
744KB

Download
memory/1264-69-0x0000000004FD0000-0x0000000005100000-memory.dmp

Filesize
1.2MB

Download
memory/1264-66-0x0000000004E20000-0x0000000004FC2000-memory.dmp

Filesize
1.6MB

Download
memory/1264-79-0x0000000003E20000-0x0000000003EDA000-memory.dmp

Filesize
744KB

Download
memory/1792-72-0x0000000000000000-mapping.dmp

Download
memory/1836-54-0x0000000000090000-0x00000000000A2000-memory.dmp

Filesize
72KB

Download
memory/1836-57-0x0000000004AD0000-0x0000000004B1C000-memory.dmp

Filesize
304KB

Download
memory/1836-56-0x0000000004E10000-0x0000000004EB6000-memory.dmp

Filesize
664KB

Download
memory/1836-55-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download
memory/1872-70-0x0000000000000000-mapping.dmp

Download
memory/1872-73-0x0000000000E10000-0x0000000000E15000-memory.dmp

Filesize
20KB

Download
memory/1872-74-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1872-75-0x0000000002220000-0x0000000002523000-memory.dmp

Filesize
3.0MB

Download
memory/1872-76-0x0000000000960000-0x00000000009F4000-memory.dmp

Filesize
592KB

Download
memory/1872-78-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads