Analysis Overview
SHA256
fda7025e4872a6eb6850640de1536f0025c2b24e99bd7f2d95ca94521f68dcce
Threat Level: Known bad
The file Adro_ Documents.xz was found to be: Known bad.
Malicious Activity Summary
Remcos
Nirsoft
NirSoft WebBrowserPassView
NirSoft MailPassView
Reads user/profile data of web browsers
Executes dropped EXE
Accesses Microsoft Outlook accounts
Adds Run key to start application
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Script User-Agent
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-14 07:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-14 07:16
Reported
2024-05-14 07:33
Platform
win7-20231129-en
Max time kernel
580s
Max time network
366s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2740 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2740 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2740 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2740 wrote to memory of 2576 | N/A | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe
"C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2740 -s 676
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
Files
memory/2740-0-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2740-1-0x0000000000400000-0x0000000000517000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-14 07:16
Reported
2024-05-14 07:33
Platform
win10v2004-20240426-en
Max time kernel
599s
Max time network
576s
Command Line
Signatures
Remcos
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| 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 |
| N/A | N/A | N/A | N/A |
Nirsoft
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Koxdxgbv = "C:\\Users\\Public\\Koxdxgbv.url" | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1256 set thread context of 3716 | N/A | C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe | C:\Users\Public\Libraries\vbgxdxoK.pif |
| PID 3716 set thread context of 400 | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | C:\Users\Public\Libraries\vbgxdxoK.pif |
| PID 3716 set thread context of 1364 | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | C:\Users\Public\Libraries\vbgxdxoK.pif |
| PID 3716 set thread context of 2472 | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | C:\Users\Public\Libraries\vbgxdxoK.pif |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\Libraries\vbgxdxoK.pif | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe
"C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe"
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\Adro_ Documents.exe C:\\Users\\Public\\Libraries\\Koxdxgbv.PIF
C:\Users\Public\Libraries\vbgxdxoK.pif
C:\Users\Public\Libraries\vbgxdxoK.pif
C:\Users\Public\Libraries\vbgxdxoK.pif
C:\Users\Public\Libraries\vbgxdxoK.pif /stext "C:\Users\Admin\AppData\Local\Temp\hwrxyasllhtmzbgtczxnwnmvcgwtykpe"
C:\Users\Public\Libraries\vbgxdxoK.pif
C:\Users\Public\Libraries\vbgxdxoK.pif /stext "C:\Users\Admin\AppData\Local\Temp\jyfi"
C:\Users\Public\Libraries\vbgxdxoK.pif
C:\Users\Public\Libraries\vbgxdxoK.pif /stext "C:\Users\Admin\AppData\Local\Temp\uskaakng"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.161:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 161.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| NL | 23.62.61.161:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | p1gzgg.by.files.1drv.com | udp |
| US | 13.107.42.12:443 | p1gzgg.by.files.1drv.com | tcp |
| US | 8.8.8.8:53 | 11.137.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 12.42.107.13.in-addr.arpa | udp |
| PL | 91.223.3.151:4508 | tcp | |
| US | 8.8.8.8:53 | 151.3.223.91.in-addr.arpa | udp |
| PL | 91.223.3.151:4508 | tcp | |
| US | 8.8.8.8:53 | geoplugin.net | udp |
| NL | 178.237.33.50:80 | geoplugin.net | tcp |
| US | 8.8.8.8:53 | 50.33.237.178.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 | 21.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.173.189.20.in-addr.arpa | udp |
Files
memory/1256-0-0x00000000021D0000-0x00000000021D1000-memory.dmp
memory/1256-1-0x0000000000400000-0x0000000000517000-memory.dmp
C:\Users\Public\Libraries\vbgxdxoK.pif
| MD5 | c116d3604ceafe7057d77ff27552c215 |
| SHA1 | 452b14432fb5758b46f2897aeccd89f7c82a727d |
| SHA256 | 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301 |
| SHA512 | 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6 |
memory/3716-5-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-10-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-8-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-12-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-15-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-16-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-17-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-18-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-20-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-19-0x0000000000400000-0x0000000001400000-memory.dmp
memory/400-24-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1364-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2472-38-0x0000000000400000-0x0000000000424000-memory.dmp
memory/400-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2472-34-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2472-33-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1364-32-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2472-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1364-29-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3716-43-0x0000000000400000-0x0000000001400000-memory.dmp
memory/400-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1364-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/400-25-0x0000000000400000-0x0000000000478000-memory.dmp
memory/400-21-0x0000000000400000-0x0000000000478000-memory.dmp
memory/400-48-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3716-54-0x000000004A180000-0x000000004A199000-memory.dmp
memory/3716-55-0x000000004A180000-0x000000004A199000-memory.dmp
memory/3716-52-0x000000004A180000-0x000000004A199000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hwrxyasllhtmzbgtczxnwnmvcgwtykpe
| MD5 | 0c71400795defb1ddf2816dcb2440470 |
| SHA1 | a9f25ddc014a44b58a890ac42ea47d98a3f754a3 |
| SHA256 | eef6222f63aae44aec7addd2cdf1d348af92b32e0be1d4c857c48d9a941d9dac |
| SHA512 | 4d5fd766afe850d8282b85ca0ff3ef36e225e754254f43e1e3e0147675d40f901096199e666310e7f70b6cfbe9f33f3dbe4a063fbd4df7267190bad5121efabf |
memory/3716-56-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-61-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-62-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-63-0x0000000000400000-0x0000000000482000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | aafcaf093f58d0398d6f5c65147b165f |
| SHA1 | 89f96a6198f02811ca8063f66661900eb2835319 |
| SHA256 | 2b672581b739d9b892db0a2673a51234d99fddded1e25756df23b6ca810283df |
| SHA512 | e90b69b8e8e2ddf1d5042c604f4d5e3a1a86fb320b6c22cae02bef099ffb5e3513ec0f4047afedb0ba8df8129dbc6ddba6349bada980928f09534b0e0c084d35 |
memory/3716-67-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-70-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-72-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-73-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-83-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-84-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-86-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-92-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-94-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-95-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-97-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-100-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-106-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-105-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3716-108-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-111-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3716-114-0x0000000000400000-0x0000000000482000-memory.dmp