Malware Analysis Report

2025-04-14 08:32

Sample ID 240923-ehr8aawbpm
Target FedexAwbDetailspdf.exe
SHA256 3d7f6d2750179e8e650d7a689b3271955aadc23e58c2fd6d43077a313ff8707b
Tags
formbook b31a discovery rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

3d7f6d2750179e8e650d7a689b3271955aadc23e58c2fd6d43077a313ff8707b

Threat Level: Known bad

The file FedexAwbDetailspdf.exe was found to be: Known bad.

Malicious Activity Summary

formbook b31a discovery rat spyware stealer trojan

Formbook

Formbook payload

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-23 03:56

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-23 03:56

Reported

2024-09-23 03:59

Platform

win7-20240704-en

Max time kernel

148s

Max time network

121s

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 SetThreadContext

Description Indicator Process Target
PID 1952 set thread context of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 2520 set thread context of 1188 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Windows\Explorer.EXE
PID 2752 set thread context of 1188 N/A C:\Windows\SysWOW64\wuapp.exe C:\Windows\Explorer.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\wuapp.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A
N/A N/A C:\Windows\SysWOW64\wuapp.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\wuapp.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1952 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2112 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1952 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 1188 wrote to memory of 2752 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\wuapp.exe
PID 2752 wrote to memory of 2924 N/A C:\Windows\SysWOW64\wuapp.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2924 N/A C:\Windows\SysWOW64\wuapp.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2924 N/A C:\Windows\SysWOW64\wuapp.exe C:\Windows\SysWOW64\cmd.exe
PID 2752 wrote to memory of 2924 N/A C:\Windows\SysWOW64\wuapp.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe

"C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe

"C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe

"C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

C:\Windows\SysWOW64\wuapp.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

Network

N/A

Files

memory/1952-0-0x000000007407E000-0x000000007407F000-memory.dmp

memory/1952-1-0x0000000000C20000-0x0000000000CB6000-memory.dmp

memory/1952-2-0x0000000074070000-0x000000007475E000-memory.dmp

memory/1952-3-0x0000000000740000-0x0000000000750000-memory.dmp

memory/1952-4-0x000000007407E000-0x000000007407F000-memory.dmp

memory/1952-5-0x0000000074070000-0x000000007475E000-memory.dmp

memory/1952-6-0x0000000004ED0000-0x0000000004F46000-memory.dmp

memory/2520-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2520-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2520-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2520-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1952-12-0x0000000074070000-0x000000007475E000-memory.dmp

memory/2520-13-0x0000000000840000-0x0000000000B43000-memory.dmp

memory/2520-16-0x0000000000310000-0x0000000000324000-memory.dmp

memory/2520-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1188-17-0x0000000007770000-0x0000000007913000-memory.dmp

memory/2752-18-0x00000000008D0000-0x00000000008DB000-memory.dmp

memory/2752-20-0x00000000008D0000-0x00000000008DB000-memory.dmp

memory/2752-21-0x0000000000090000-0x00000000000BF000-memory.dmp

memory/1188-22-0x0000000007770000-0x0000000007913000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-23 03:56

Reported

2024-09-23 03:59

Platform

win10v2004-20240802-en

Max time kernel

145s

Max time network

143s

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe

"C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe

"C:\Users\Admin\AppData\Local\Temp\FedexAwbDetailspdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/2792-0-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/2792-1-0x0000000000980000-0x0000000000A16000-memory.dmp

memory/2792-2-0x0000000005930000-0x0000000005ED4000-memory.dmp

memory/2792-3-0x0000000005280000-0x0000000005312000-memory.dmp

memory/2792-4-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2792-5-0x0000000005360000-0x000000000536A000-memory.dmp

memory/2792-6-0x00000000056D0000-0x000000000576C000-memory.dmp

memory/2792-7-0x00000000056B0000-0x00000000056C0000-memory.dmp

memory/2792-8-0x0000000074D0E000-0x0000000074D0F000-memory.dmp

memory/2792-9-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2792-10-0x0000000006DC0000-0x0000000006E36000-memory.dmp

memory/2160-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2792-13-0x0000000074D00000-0x00000000754B0000-memory.dmp

memory/2160-14-0x0000000000FF0000-0x000000000133A000-memory.dmp

memory/2160-17-0x0000000001440000-0x0000000001454000-memory.dmp

memory/2160-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3548-18-0x0000000002C90000-0x0000000002D8D000-memory.dmp

memory/3548-22-0x0000000008A70000-0x0000000008C10000-memory.dmp

memory/2160-21-0x0000000002DC0000-0x0000000002DD4000-memory.dmp

memory/2160-20-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3548-23-0x0000000002C90000-0x0000000002D8D000-memory.dmp

memory/3548-24-0x0000000008A70000-0x0000000008C10000-memory.dmp