Malware Analysis Report

2024-12-07 03:34

Sample ID 241113-da1zsavflc
Target 19899077677.zip
SHA256 5789e77416fdf448bd2f24cbf75a4de888d7dd10c4f0c5ff4ba2345da2b4d7f9
Tags
formbook o52o discovery execution rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5789e77416fdf448bd2f24cbf75a4de888d7dd10c4f0c5ff4ba2345da2b4d7f9

Threat Level: Known bad

The file 19899077677.zip was found to be: Known bad.

Malicious Activity Summary

formbook o52o discovery execution rat spyware stealer trojan

Formbook

Formbook family

Formbook payload

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 02:49

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 02:49

Reported

2024-11-13 02:51

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook family

formbook

Formbook payload

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe N/A

Enumerates physical storage devices

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\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1960 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1960 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1960 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1960 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 1960 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jRPmXcPzRyO.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jRPmXcPzRyO" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA9EC.tmp"

C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 103.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1960-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

memory/1960-1-0x0000000000010000-0x00000000000A8000-memory.dmp

memory/1960-2-0x0000000005060000-0x0000000005604000-memory.dmp

memory/1960-3-0x0000000004AB0000-0x0000000004B42000-memory.dmp

memory/1960-5-0x00000000748A0000-0x0000000075050000-memory.dmp

memory/1960-6-0x0000000004D10000-0x0000000004DAC000-memory.dmp

memory/1960-4-0x0000000004C50000-0x0000000004C5A000-memory.dmp

memory/1960-7-0x00000000065E0000-0x00000000065F2000-memory.dmp

memory/1960-8-0x00000000748AE000-0x00000000748AF000-memory.dmp

memory/1960-9-0x00000000748A0000-0x0000000075050000-memory.dmp

memory/1960-10-0x0000000005FE0000-0x0000000006058000-memory.dmp

memory/220-15-0x0000000002370000-0x00000000023A6000-memory.dmp

memory/220-17-0x0000000004F90000-0x00000000055B8000-memory.dmp

memory/220-16-0x00000000748A0000-0x0000000075050000-memory.dmp

memory/220-18-0x00000000748A0000-0x0000000075050000-memory.dmp

memory/220-20-0x00000000748A0000-0x0000000075050000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpA9EC.tmp

MD5 b4c6f8cf4bc864f0282118a68905d54e
SHA1 d417d4bfd1d69dac8dc7faa3cb27ef95d6571783
SHA256 9f09bfde417c8fc061fc9c91ded3001d06493d6bbc06a1f1b4e65b96fc5de681
SHA512 be917f1cf2ffef5a6a84b57d5fdfbd7e4fdf94ff18669f964fdd1f013c2c92e57f64e890dd8533f7802e94a593d61f7d461f51790f32efa5611816f851c0295a

memory/220-23-0x0000000004CE0000-0x0000000004D46000-memory.dmp

memory/4836-24-0x0000000000400000-0x000000000042F000-memory.dmp

memory/220-32-0x00000000056C0000-0x0000000005A14000-memory.dmp

memory/1960-33-0x00000000748A0000-0x0000000075050000-memory.dmp

memory/4836-34-0x0000000001380000-0x00000000016CA000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0ofbf3i1.jlu.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/220-22-0x0000000004C70000-0x0000000004CD6000-memory.dmp

memory/220-21-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

memory/220-38-0x0000000005C90000-0x0000000005CAE000-memory.dmp

memory/220-39-0x0000000005D20000-0x0000000005D6C000-memory.dmp

memory/220-40-0x000000007FC20000-0x000000007FC30000-memory.dmp

memory/220-41-0x0000000006250000-0x0000000006282000-memory.dmp

memory/220-42-0x0000000075100000-0x000000007514C000-memory.dmp

memory/220-52-0x0000000004950000-0x0000000004960000-memory.dmp

memory/220-53-0x0000000006230000-0x000000000624E000-memory.dmp

memory/220-54-0x0000000006C90000-0x0000000006D33000-memory.dmp

memory/220-55-0x0000000007600000-0x0000000007C7A000-memory.dmp

memory/220-56-0x0000000006FB0000-0x0000000006FCA000-memory.dmp

memory/220-57-0x0000000007020000-0x000000000702A000-memory.dmp

memory/220-58-0x0000000007230000-0x00000000072C6000-memory.dmp

memory/220-59-0x00000000071B0000-0x00000000071C1000-memory.dmp

memory/220-60-0x00000000071E0000-0x00000000071EE000-memory.dmp

memory/220-61-0x00000000071F0000-0x0000000007204000-memory.dmp

memory/220-62-0x00000000072F0000-0x000000000730A000-memory.dmp

memory/220-63-0x00000000072D0000-0x00000000072D8000-memory.dmp

memory/220-66-0x00000000748A0000-0x0000000075050000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 02:49

Reported

2024-11-13 02:51

Platform

win7-20240729-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook family

formbook

Formbook payload

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

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\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2488 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2488 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2488 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2488 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2488 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 2488 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 2488 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 2488 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Windows\SysWOW64\schtasks.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe
PID 2488 wrote to memory of 2676 N/A C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jRPmXcPzRyO.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jRPmXcPzRyO" /XML "C:\Users\Admin\AppData\Local\Temp\tmp625B.tmp"

C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe

"C:\Users\Admin\AppData\Local\Temp\3335faabca6c9f12f7f1086828065cd19f491a6b705d4f7fba8ba6f53a3c5d87.exe"

Network

N/A

Files

memory/2488-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

memory/2488-1-0x0000000000860000-0x00000000008F8000-memory.dmp

memory/2488-2-0x0000000073F50000-0x000000007463E000-memory.dmp

memory/2488-3-0x0000000000390000-0x00000000003A2000-memory.dmp

memory/2488-4-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

memory/2488-5-0x0000000073F50000-0x000000007463E000-memory.dmp

memory/2488-6-0x0000000004D20000-0x0000000004D98000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp625B.tmp

MD5 a294292fb587cd6a330d90760a6ab0ba
SHA1 8d5113ca680ec1886739540951efc86671e6aa0d
SHA256 d0fb15dd72a09f88602f9012146edf403716dc55752228c32ebeab9f57b6ede4
SHA512 0a260156ecb3392a563b563df249ce9354f2b78aa2f76f2eaea1c3fe8612136ec06e056595cd20918dbe7a1a4e622279d9c432bb58151291474db4697ba9befe

memory/2676-17-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2676-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2676-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2676-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2488-18-0x0000000073F50000-0x000000007463E000-memory.dmp