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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1992-61-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1992-62-0x000000000041F060-mapping.dmp	formbook
behavioral1/memory/1992-68-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1744-72-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook
behavioral1/memory/1744-76-0x00000000000C0000-0x00000000000EF000-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-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ozqvf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ovjur\\Ozqvf.exe\""	Irrazvdr.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Irrazvdr.exeInstallUtil.exeipconfig.exe

description	pid	process	target process
PID 784 set thread context of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 1992 set thread context of 1396	1992	InstallUtil.exe	Explorer.EXE
PID 1744 set thread context of 1396	1744	ipconfig.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1744 ipconfig.exe

pid	process
1744	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

Irrazvdr.exeInstallUtil.exeipconfig.exe

pid	process
784	Irrazvdr.exe
1992	InstallUtil.exe
1992	InstallUtil.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe
1744	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.exeipconfig.exe

pid process

1992 InstallUtil.exe
1992 InstallUtil.exe
1992 InstallUtil.exe
1744 ipconfig.exe
1744 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Irrazvdr.exeInstallUtil.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 784 Irrazvdr.exe
Token: SeDebugPrivilege 1992 InstallUtil.exe
Token: SeDebugPrivilege 1744 ipconfig.exe

pid	process
1992	InstallUtil.exe
1992	InstallUtil.exe
1992	InstallUtil.exe
1744	ipconfig.exe
1744	ipconfig.exe

description	pid	process
Token: SeDebugPrivilege	784	Irrazvdr.exe
Token: SeDebugPrivilege	1992	InstallUtil.exe
Token: SeDebugPrivilege	1744	ipconfig.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Irrazvdr.exeExplorer.EXEipconfig.exe

description	pid	process	target process
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 784 wrote to memory of 1992	784	Irrazvdr.exe	InstallUtil.exe
PID 1396 wrote to memory of 1744	1396	Explorer.EXE	ipconfig.exe
PID 1396 wrote to memory of 1744	1396	Explorer.EXE	ipconfig.exe
PID 1396 wrote to memory of 1744	1396	Explorer.EXE	ipconfig.exe
PID 1396 wrote to memory of 1744	1396	Explorer.EXE	ipconfig.exe
PID 1744 wrote to memory of 1860	1744	ipconfig.exe	cmd.exe
PID 1744 wrote to memory of 1860	1744	ipconfig.exe	cmd.exe
PID 1744 wrote to memory of 1860	1744	ipconfig.exe	cmd.exe
PID 1744 wrote to memory of 1860	1744	ipconfig.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1396

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:784

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
PID:1992

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:892

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:1860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/784-55-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/784-56-0x0000000005320000-0x00000000053C6000-memory.dmp

Filesize
664KB

Download
memory/784-57-0x0000000004AE0000-0x0000000004B2C000-memory.dmp

Filesize
304KB

Download
memory/784-54-0x00000000012C0000-0x00000000012D2000-memory.dmp

Filesize
72KB

Download
memory/1396-66-0x00000000068C0000-0x0000000006A5B000-memory.dmp

Filesize
1.6MB

Download
memory/1396-77-0x00000000070F0000-0x00000000071A0000-memory.dmp

Filesize
704KB

Download
memory/1396-75-0x00000000070F0000-0x00000000071A0000-memory.dmp

Filesize
704KB

Download
memory/1744-72-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/1744-71-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/1744-76-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/1744-74-0x0000000000580000-0x0000000000614000-memory.dmp

Filesize
592KB

Download
memory/1744-67-0x0000000000000000-mapping.dmp

Download
memory/1744-73-0x00000000020A0000-0x00000000023A3000-memory.dmp

Filesize
3.0MB

Download
memory/1860-70-0x0000000000000000-mapping.dmp

Download
memory/1992-63-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/1992-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1992-68-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1992-62-0x000000000041F060-mapping.dmp

Download
memory/1992-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1992-65-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/1992-58-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads