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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4240-134-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4240-140-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1188-142-0x0000000000180000-0x00000000001AF000-memory.dmp	formbook
behavioral2/memory/1188-145-0x0000000000180000-0x00000000001AF000-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-1-5-21-1809750270-3141839489-3074374771-1000\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.execscript.exe

description	pid	process	target process
PID 4776 set thread context of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4240 set thread context of 2240	4240	InstallUtil.exe	Explorer.EXE
PID 1188 set thread context of 2240	1188	cscript.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

Irrazvdr.exeInstallUtil.execscript.exe

pid	process
4776	Irrazvdr.exe
4776	Irrazvdr.exe
4240	InstallUtil.exe
4240	InstallUtil.exe
4240	InstallUtil.exe
4240	InstallUtil.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe
1188	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2240 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.execscript.exe

pid process

4240 InstallUtil.exe
4240 InstallUtil.exe
4240 InstallUtil.exe
1188 cscript.exe
1188 cscript.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Irrazvdr.exeInstallUtil.execscript.exe

description pid process

Token: SeDebugPrivilege 4776 Irrazvdr.exe
Token: SeDebugPrivilege 4240 InstallUtil.exe
Token: SeDebugPrivilege 1188 cscript.exe

pid	process
2240	Explorer.EXE

pid	process
4240	InstallUtil.exe
4240	InstallUtil.exe
4240	InstallUtil.exe
1188	cscript.exe
1188	cscript.exe

description	pid	process
Token: SeDebugPrivilege	4776	Irrazvdr.exe
Token: SeDebugPrivilege	4240	InstallUtil.exe
Token: SeDebugPrivilege	1188	cscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Irrazvdr.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 4776 wrote to memory of 4240	4776	Irrazvdr.exe	InstallUtil.exe
PID 2240 wrote to memory of 1188	2240	Explorer.EXE	cscript.exe
PID 2240 wrote to memory of 1188	2240	Explorer.EXE	cscript.exe
PID 2240 wrote to memory of 1188	2240	Explorer.EXE	cscript.exe
PID 1188 wrote to memory of 3212	1188	cscript.exe	cmd.exe
PID 1188 wrote to memory of 3212	1188	cscript.exe	cmd.exe
PID 1188 wrote to memory of 3212	1188	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2240

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:4776

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:4240

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:1188

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:3212

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/1188-142-0x0000000000180000-0x00000000001AF000-memory.dmp

Filesize
188KB

Download
memory/1188-146-0x00000000023D0000-0x0000000002464000-memory.dmp

Filesize
592KB

Download
memory/1188-145-0x0000000000180000-0x00000000001AF000-memory.dmp

Filesize
188KB

Download
memory/1188-144-0x0000000002590000-0x00000000028DA000-memory.dmp

Filesize
3.3MB

Download
memory/1188-141-0x0000000000CF0000-0x0000000000D17000-memory.dmp

Filesize
156KB

Download
memory/1188-139-0x0000000000000000-mapping.dmp

Download
memory/2240-148-0x0000000008870000-0x00000000089F0000-memory.dmp

Filesize
1.5MB

Download
memory/2240-147-0x0000000008870000-0x00000000089F0000-memory.dmp

Filesize
1.5MB

Download
memory/2240-138-0x00000000081E0000-0x00000000082F1000-memory.dmp

Filesize
1.1MB

Download
memory/3212-143-0x0000000000000000-mapping.dmp

Download
memory/4240-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4240-137-0x00000000017F0000-0x0000000001805000-memory.dmp

Filesize
84KB

Download
memory/4240-136-0x0000000001360000-0x00000000016AA000-memory.dmp

Filesize
3.3MB

Download
memory/4240-134-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4240-133-0x0000000000000000-mapping.dmp

Download
memory/4776-130-0x0000000000760000-0x0000000000772000-memory.dmp

Filesize
72KB

Download
memory/4776-132-0x0000000006000000-0x0000000006092000-memory.dmp

Filesize
584KB

Download
memory/4776-131-0x0000000005DD0000-0x0000000005E36000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads