formbook | 391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7

General

Target

SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe
Size

597KB
MD5

1931f5b75ae8d9c14ec61cdd53e70f21
SHA1

2a8925ba90f3972a93b0db7882c9f060a51a114d
SHA256

391e2aae0e6a27817a8a57c87e89b08e69226fe11bc5b75a78dcc45597a9fcf7
SHA512

8a469dd82cce2fe09dbb4111fe9c98b8595e31e9d7f783ace3c0009eda314b47cd4f0485f39c949e97e3f6f83795cb2d596fd89967bbff84234ad0c6015e76d5

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.kaiyuansu.pro/incn/

Decoy

1bovvfk93jd.com

enlightenedhealthcoaching.com

findthatsmartphone.com

intelligentsystemsus.com

xn--lmsealamientos-tnb.com

eot0luh5ia.men

babanewshop.com

beyond-bit.com

meritane.com

buythinsecret.com

c2ornot.com

twelvesband.com

rktlends.com

bourseandish.com

happyshop88.com

topangacanyonvintage.com

epersonalloansonline.com

roofers-anaheim.com

shanghaiys.net

bickel.wtf

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1328-9-0x000000000041D060-mapping.dmp	xloader
behavioral1/memory/1328-8-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1080-21-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exeInstallUtil.exechkdsk.exe

description	pid	process	target process
PID 1604 set thread context of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1328 set thread context of 1272	1328	InstallUtil.exe	Explorer.EXE
PID 1328 set thread context of 1272	1328	InstallUtil.exe	Explorer.EXE
PID 1080 set thread context of 1272	1080	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

InstallUtil.exechkdsk.exe

pid	process
1328	InstallUtil.exe
1328	InstallUtil.exe
1328	InstallUtil.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe
1080	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

InstallUtil.exechkdsk.exe

pid process

1328 InstallUtil.exe
1328 InstallUtil.exe
1328 InstallUtil.exe
1328 InstallUtil.exe
1080 chkdsk.exe
1080 chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

InstallUtil.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1328	InstallUtil.exe
Token: SeDebugPrivilege	1080	chkdsk.exe
Token: SeShutdownPrivilege	1272	Explorer.EXE
Token: SeShutdownPrivilege	1272	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
1272 Explorer.EXE
1272 Explorer.EXE
1272 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1272 Explorer.EXE
1272 Explorer.EXE
1272 Explorer.EXE
1272 Explorer.EXE

pid	process
1272	Explorer.EXE
1272	Explorer.EXE
1272	Explorer.EXE
1272	Explorer.EXE

pid	process
1272	Explorer.EXE
1272	Explorer.EXE
1272	Explorer.EXE
1272	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1604 wrote to memory of 1328	1604	SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe	InstallUtil.exe
PID 1272 wrote to memory of 1080	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1080	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1080	1272	Explorer.EXE	chkdsk.exe
PID 1272 wrote to memory of 1080	1272	Explorer.EXE	chkdsk.exe
PID 1080 wrote to memory of 844	1080	chkdsk.exe	cmd.exe
PID 1080 wrote to memory of 844	1080	chkdsk.exe	cmd.exe
PID 1080 wrote to memory of 844	1080	chkdsk.exe	cmd.exe
PID 1080 wrote to memory of 844	1080	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1272

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.507.23078.3745.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1604

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:1328

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
3⤵
PID:844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/844-22-0x0000000000000000-mapping.dmp

Download
memory/1080-24-0x0000000000530000-0x00000000005C0000-memory.dmp

Filesize
576KB

Download
memory/1080-23-0x0000000001F80000-0x0000000002283000-memory.dmp

Filesize
3.0MB

Download
memory/1080-21-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1080-20-0x0000000000260000-0x0000000000267000-memory.dmp

Filesize
28KB

Download
memory/1080-19-0x0000000000000000-mapping.dmp

Download
memory/1272-15-0x0000000006480000-0x00000000065A8000-memory.dmp

Filesize
1.2MB

Download
memory/1272-25-0x0000000006A70000-0x0000000006BB1000-memory.dmp

Filesize
1.3MB

Download
memory/1272-18-0x0000000005020000-0x0000000005101000-memory.dmp

Filesize
900KB

Download
memory/1328-9-0x000000000041D060-mapping.dmp

Download
memory/1328-14-0x00000000002E0000-0x00000000002F1000-memory.dmp

Filesize
68KB

Download
memory/1328-13-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1328-17-0x0000000000590000-0x00000000005A1000-memory.dmp

Filesize
68KB

Download
memory/1328-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1604-16-0x0000000001FE0000-0x0000000001FE1000-memory.dmp

Filesize
4KB

Download
memory/1604-11-0x00000000006E6000-0x00000000006E7000-memory.dmp

Filesize
4KB

Download
memory/1604-10-0x00000000006D5000-0x00000000006E6000-memory.dmp

Filesize
68KB

Download
memory/1604-2-0x00000000745C0000-0x0000000074CAE000-memory.dmp

Filesize
6.9MB

Download
memory/1604-7-0x0000000000790000-0x000000000079F000-memory.dmp

Filesize
60KB

Download
memory/1604-6-0x0000000000690000-0x00000000006CB000-memory.dmp

Filesize
236KB

Download
memory/1604-5-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/1604-3-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads