formbook | 6959e78db6f5ebf3c0c86c05868e281a3013cdfcc3a57440ec8a24ab43506af8

General

Target

SecuriteInfo.com.W32.AIDetectNet.01.19438.exe
Size

393KB
MD5

5b696400216967545b512c498c1e5086
SHA1

f968a02346a39e5484ea9280382c9c0d7d77f13f
SHA256

6959e78db6f5ebf3c0c86c05868e281a3013cdfcc3a57440ec8a24ab43506af8
SHA512

061c66a085991cd935cea68460556d7431c611de648413dffd49a420bc5fef06cd5b2a28dcafc041f5c63857b1a422ef5206f38900439234c84c7789a993357b

Score

10^/10

formbook xloader tn61 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1344-59-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1344-60-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/1344-62-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1500-68-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/1500-73-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KTKXNHPPFD = "C:\\Program Files (x86)\\Nld5\\audiodg9rmx.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.19438.execvtres.exehelp.exe

description	pid	process	target process
PID 780 set thread context of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 1344 set thread context of 1288	1344	cvtres.exe	Explorer.EXE
PID 1500 set thread context of 1288	1500	help.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

help.exe

description ioc process

File opened for modification C:\Program Files (x86)\Nld5\audiodg9rmx.exe help.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nld5\audiodg9rmx.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

cvtres.exehelp.exe

pid	process
1344	cvtres.exe
1344	cvtres.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe
1500	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

cvtres.exehelp.exe

pid process

1344 cvtres.exe
1344 cvtres.exe
1344 cvtres.exe
1500 help.exe
1500 help.exe
1500 help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.19438.execvtres.exehelp.exe

description	pid	process
Token: SeDebugPrivilege	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe
Token: SeDebugPrivilege	1344	cvtres.exe
Token: SeDebugPrivilege	1500	help.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE

pid	process
1288	Explorer.EXE
1288	Explorer.EXE

pid	process
1288	Explorer.EXE
1288	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.19438.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 780 wrote to memory of 1344	780	SecuriteInfo.com.W32.AIDetectNet.01.19438.exe	cvtres.exe
PID 1288 wrote to memory of 1500	1288	Explorer.EXE	help.exe
PID 1288 wrote to memory of 1500	1288	Explorer.EXE	help.exe
PID 1288 wrote to memory of 1500	1288	Explorer.EXE	help.exe
PID 1288 wrote to memory of 1500	1288	Explorer.EXE	help.exe
PID 1500 wrote to memory of 1400	1500	help.exe	cmd.exe
PID 1500 wrote to memory of 1400	1500	help.exe	cmd.exe
PID 1500 wrote to memory of 1400	1500	help.exe	cmd.exe
PID 1500 wrote to memory of 1400	1500	help.exe	cmd.exe
PID 1500 wrote to memory of 1604	1500	help.exe	Firefox.exe
PID 1500 wrote to memory of 1604	1500	help.exe	Firefox.exe
PID 1500 wrote to memory of 1604	1500	help.exe	Firefox.exe
PID 1500 wrote to memory of 1604	1500	help.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1288

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.19438.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.19438.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:780

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1344

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:1400

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1604

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

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/780-55-0x00000000008D0000-0x0000000000904000-memory.dmp

Filesize
208KB

Download
memory/780-54-0x0000000000B70000-0x0000000000BD8000-memory.dmp

Filesize
416KB

Download
memory/1288-65-0x00000000068F0000-0x0000000006A47000-memory.dmp

Filesize
1.3MB

Download
memory/1288-72-0x0000000004830000-0x00000000048EE000-memory.dmp

Filesize
760KB

Download
memory/1288-74-0x0000000004830000-0x00000000048EE000-memory.dmp

Filesize
760KB

Download
memory/1344-57-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1344-62-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1344-63-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1344-64-0x0000000000290000-0x00000000002A1000-memory.dmp

Filesize
68KB

Download
memory/1344-60-0x000000000041F2C0-mapping.dmp

Download
memory/1344-59-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1344-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1400-69-0x0000000000000000-mapping.dmp

Download
memory/1500-66-0x0000000000000000-mapping.dmp

Download
memory/1500-70-0x0000000000790000-0x0000000000A93000-memory.dmp

Filesize
3.0MB

Download
memory/1500-71-0x0000000000480000-0x0000000000510000-memory.dmp

Filesize
576KB

Download
memory/1500-68-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1500-73-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1500-67-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1500-75-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads