formbook | 8054dd2e45880794d187893bf7274cb69cc628baa62eec2a2dfb514af50c37c4

General

Target

SecuriteInfo.com.W32.AIDetectNet.01.24290.exe
Size

269KB
MD5

d5353394b28c55fb2649da8d66f74cb8
SHA1

c6143cadad1adef54b5d7cf7a90035feb3e283a0
SHA256

8054dd2e45880794d187893bf7274cb69cc628baa62eec2a2dfb514af50c37c4
SHA512

e001b38a85e3be0cf15ecabc5fb20658878cc516a25d36bd6d6ed70c611e130fcf499a9a26aeacd2760c2e109acff0f1055bde6766029e727214be7ec43b4c02

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/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1480-59-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/524-67-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/524-72-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds policy 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\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\IZ7TXT90VBFX = "C:\\Program Files (x86)\\Nzxqlgp\\mfcpjo8.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.24290.execvtres.exehelp.exe

description	pid	process	target process
PID 632 set thread context of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 1480 set thread context of 1208	1480	cvtres.exe	Explorer.EXE
PID 524 set thread context of 1208	524	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)\Nzxqlgp\mfcpjo8.exe help.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Nzxqlgp\mfcpjo8.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
1480	cvtres.exe
1480	cvtres.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe
524	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

cvtres.exehelp.exe

pid process

1480 cvtres.exe
1480 cvtres.exe
1480 cvtres.exe
524 help.exe
524 help.exe
524 help.exe
524 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.exehelp.exe

description pid process

Token: SeDebugPrivilege 1480 cvtres.exe
Token: SeDebugPrivilege 524 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1480	cvtres.exe
Token: SeDebugPrivilege	524	help.exe

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

SecuriteInfo.com.W32.AIDetectNet.01.24290.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 632 wrote to memory of 1480	632	SecuriteInfo.com.W32.AIDetectNet.01.24290.exe	cvtres.exe
PID 1208 wrote to memory of 524	1208	Explorer.EXE	help.exe
PID 1208 wrote to memory of 524	1208	Explorer.EXE	help.exe
PID 1208 wrote to memory of 524	1208	Explorer.EXE	help.exe
PID 1208 wrote to memory of 524	1208	Explorer.EXE	help.exe
PID 524 wrote to memory of 240	524	help.exe	cmd.exe
PID 524 wrote to memory of 240	524	help.exe	cmd.exe
PID 524 wrote to memory of 240	524	help.exe	cmd.exe
PID 524 wrote to memory of 240	524	help.exe	cmd.exe
PID 524 wrote to memory of 1924	524	help.exe	Firefox.exe
PID 524 wrote to memory of 1924	524	help.exe	Firefox.exe
PID 524 wrote to memory of 1924	524	help.exe	Firefox.exe
PID 524 wrote to memory of 1924	524	help.exe	Firefox.exe
PID 524 wrote to memory of 1924	524	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:1208

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.24290.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetectNet.01.24290.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:632

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:1480

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:900

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

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:840

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1660

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:992

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:952

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1252

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1204

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2012

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2036

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1200

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1184

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1988

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2040

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2004

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1996

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2008

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1696

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:768

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:472

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:668

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1624

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Adds policy 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:524

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:240

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1924

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/240-68-0x0000000000000000-mapping.dmp

Download
memory/524-65-0x0000000000000000-mapping.dmp

Download
memory/524-74-0x0000000075391000-0x0000000075393000-memory.dmp

Filesize
8KB

Download
memory/524-72-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/524-70-0x00000000003C0000-0x0000000000450000-memory.dmp

Filesize
576KB

Download
memory/524-69-0x0000000000650000-0x0000000000953000-memory.dmp

Filesize
3.0MB

Download
memory/524-67-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/524-66-0x00000000009D0000-0x00000000009D6000-memory.dmp

Filesize
24KB

Download
memory/632-54-0x0000000000B40000-0x0000000000B86000-memory.dmp

Filesize
280KB

Download
memory/1208-64-0x0000000004A00000-0x0000000004AE4000-memory.dmp

Filesize
912KB

Download
memory/1208-71-0x0000000004C30000-0x0000000004D4B000-memory.dmp

Filesize
1.1MB

Download
memory/1208-73-0x0000000004C30000-0x0000000004D4B000-memory.dmp

Filesize
1.1MB

Download
memory/1480-63-0x0000000000300000-0x0000000000311000-memory.dmp

Filesize
68KB

Download
memory/1480-62-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-59-0x000000000041F2C0-mapping.dmp

Download
memory/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-55-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads