Malware Analysis Report

2024-10-23 22:12

Sample ID 240717-rpcgmaxfrb
Target Custom Clearance 5816641785332.cab
SHA256 a54287191c76db416816b7a3af4bca08706b3d0b46b78ee0002f04c3b71c5414
Tags
formbook na10 rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a54287191c76db416816b7a3af4bca08706b3d0b46b78ee0002f04c3b71c5414

Threat Level: Known bad

The file Custom Clearance 5816641785332.cab was found to be: Known bad.

Malicious Activity Summary

formbook na10 rat spyware stealer trojan

Formbook

Formbook payload

Blocklisted process makes network request

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-17 14:21

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-17 14:21

Reported

2024-07-17 14:24

Platform

win7-20240708-en

Max time kernel

145s

Max time network

123s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\help.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 2112 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 1188 wrote to memory of 2896 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1188 wrote to memory of 2896 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1188 wrote to memory of 2896 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 1188 wrote to memory of 2896 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 2896 wrote to memory of 1656 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 1656 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 1656 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 2896 wrote to memory of 1656 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe

"C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe

"C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

C:\Windows\SysWOW64\help.exe

"C:\Windows\SysWOW64\help.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

Network

N/A

Files

memory/2112-0-0x000000007463E000-0x000000007463F000-memory.dmp

memory/2112-1-0x0000000000C10000-0x0000000000CDA000-memory.dmp

memory/2112-2-0x0000000004610000-0x0000000004654000-memory.dmp

memory/2112-3-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/2112-4-0x0000000000550000-0x000000000056A000-memory.dmp

memory/2112-5-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2704-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2704-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2704-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2112-12-0x000000007463E000-0x000000007463F000-memory.dmp

memory/2112-13-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/2704-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2112-15-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/2704-16-0x00000000008F0000-0x0000000000BF3000-memory.dmp

memory/2704-19-0x0000000000130000-0x0000000000144000-memory.dmp

memory/2704-18-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1188-20-0x0000000007460000-0x000000000760D000-memory.dmp

memory/2896-22-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

memory/2896-21-0x0000000000FA0000-0x0000000000FA6000-memory.dmp

memory/2896-23-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/1188-26-0x0000000007460000-0x000000000760D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-17 14:21

Reported

2024-07-17 14:24

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

151s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

rat
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A
N/A N/A C:\Windows\SysWOW64\wscript.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\wscript.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 892 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe
PID 3552 wrote to memory of 3020 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wscript.exe
PID 3552 wrote to memory of 3020 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wscript.exe
PID 3552 wrote to memory of 3020 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wscript.exe
PID 3020 wrote to memory of 4524 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe
PID 3020 wrote to memory of 4524 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe
PID 3020 wrote to memory of 4524 N/A C:\Windows\SysWOW64\wscript.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe

"C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe

"C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

C:\Windows\SysWOW64\wscript.exe

"C:\Windows\SysWOW64\wscript.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Custom Clearance 5816641785332.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 www.khanyos.com udp
US 76.223.105.230:80 www.khanyos.com tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 www.khanyos.com udp
US 13.248.243.5:80 www.khanyos.com tcp
US 8.8.8.8:53 www.rinabet357.com udp
US 3.33.130.190:80 www.rinabet357.com tcp
US 8.8.8.8:53 190.130.33.3.in-addr.arpa udp
US 8.8.8.8:53 www.liamcollinai.com udp
VN 103.56.160.25:80 www.liamcollinai.com tcp
US 76.223.105.230:80 www.khanyos.com tcp
US 8.8.8.8:53 25.160.56.103.in-addr.arpa udp
US 8.8.8.8:53 www.oypivh.top udp
HK 122.10.17.206:80 www.oypivh.top tcp
US 8.8.8.8:53 206.17.10.122.in-addr.arpa udp

Files

memory/892-0-0x000000007495E000-0x000000007495F000-memory.dmp

memory/892-1-0x0000000000980000-0x0000000000A4A000-memory.dmp

memory/892-2-0x00000000056C0000-0x000000000575C000-memory.dmp

memory/892-3-0x00000000057E0000-0x0000000005872000-memory.dmp

memory/892-4-0x0000000074950000-0x0000000075100000-memory.dmp

memory/892-5-0x0000000005AC0000-0x0000000005B04000-memory.dmp

memory/892-6-0x00000000060D0000-0x0000000006674000-memory.dmp

memory/892-7-0x0000000005BE0000-0x0000000005BEA000-memory.dmp

memory/892-8-0x0000000074950000-0x0000000075100000-memory.dmp

memory/892-9-0x00000000073F0000-0x000000000740A000-memory.dmp

memory/892-10-0x0000000007450000-0x0000000007456000-memory.dmp

memory/892-11-0x000000007495E000-0x000000007495F000-memory.dmp

memory/892-12-0x0000000074950000-0x0000000075100000-memory.dmp

memory/3276-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/892-15-0x0000000074950000-0x0000000075100000-memory.dmp

memory/3276-16-0x0000000001120000-0x000000000146A000-memory.dmp

memory/3276-19-0x0000000001490000-0x00000000014A4000-memory.dmp

memory/3276-18-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3552-20-0x0000000009170000-0x0000000009224000-memory.dmp

memory/3020-22-0x00000000003E0000-0x0000000000407000-memory.dmp

memory/3020-21-0x00000000003E0000-0x0000000000407000-memory.dmp

memory/3020-23-0x0000000000770000-0x000000000079F000-memory.dmp

memory/3552-25-0x0000000009170000-0x0000000009224000-memory.dmp

memory/3552-27-0x0000000009800000-0x0000000009909000-memory.dmp

memory/3552-28-0x0000000009800000-0x0000000009909000-memory.dmp

memory/3552-31-0x0000000009800000-0x0000000009909000-memory.dmp