Analysis Overview
SHA256
b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d
Threat Level: Known bad
The file b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d was found to be: Known bad.
Malicious Activity Summary
Formbook
Looks for VirtualBox Guest Additions in registry
Formbook payload
Detects executables packed with Cassandra/CyaX
Detects executables packed with ConfuserEx Custom; outside of GIT
Looks for VMWare Tools registry key
Checks BIOS information in registry
Checks computer location settings
Maps connected drives based on registry
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-07 00:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-07 00:38
Reported
2024-05-07 00:41
Platform
win7-20240221-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Formbook
Detects executables packed with Cassandra/CyaX
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables packed with ConfuserEx Custom; outside of GIT
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Looks for VirtualBox Guest Additions in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Looks for VMWare Tools registry key
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2220 set thread context of 2132 | N/A | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe
"C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IiTdunToFK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD99D.tmp"
C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe
"C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe"
Network
Files
memory/2220-0-0x000000007406E000-0x000000007406F000-memory.dmp
memory/2220-1-0x0000000000FD0000-0x0000000001068000-memory.dmp
memory/2220-2-0x0000000000880000-0x000000000088A000-memory.dmp
memory/2220-3-0x0000000000960000-0x00000000009A4000-memory.dmp
memory/2220-4-0x0000000074060000-0x000000007474E000-memory.dmp
memory/2220-5-0x000000007406E000-0x000000007406F000-memory.dmp
memory/2220-6-0x0000000074060000-0x000000007474E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpD99D.tmp
| MD5 | d1fd5e12f227eb93901f97339ee5c7ad |
| SHA1 | 8172342fde605f8d3d31cf1113227f1a942df3d9 |
| SHA256 | f8456f237ca2428c6b1976ffc7a71df83ed0f9826643a3b67659cf1f8f7087d9 |
| SHA512 | 7d3fd324abc3a46c89082dcbfc62dd1bcc21dffb5f966d4ec423d603d1053c231efdc68f5290790494fe61910376c167337e9e4805d3f472803e929796f6a755 |
memory/2220-12-0x0000000000350000-0x000000000035A000-memory.dmp
memory/2132-13-0x0000000000400000-0x000000000042A000-memory.dmp
memory/2132-14-0x0000000000400000-0x000000000042A000-memory.dmp
memory/2132-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2132-20-0x0000000000910000-0x0000000000C13000-memory.dmp
memory/2220-19-0x0000000074060000-0x000000007474E000-memory.dmp
memory/2132-18-0x0000000000400000-0x000000000042A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-07 00:38
Reported
2024-05-07 00:41
Platform
win10v2004-20240419-en
Max time kernel
133s
Max time network
123s
Command Line
Signatures
Formbook
Detects executables packed with Cassandra/CyaX
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects executables packed with ConfuserEx Custom; outside of GIT
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Looks for VirtualBox Guest Additions in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Looks for VMWare Tools registry key
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Maps connected drives based on registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 552 set thread context of 4992 | N/A | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe
"C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IiTdunToFK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF01D.tmp"
C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe
"C:\Users\Admin\AppData\Local\Temp\b79369c7e79099736c882b54a54898237dc1506acef308849e8cfa88277de46d.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4992 -ip 4992
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 184
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 219.131.50.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 49.15.97.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 45.19.74.20.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 | 26.35.223.20.in-addr.arpa | udp |
Files
memory/552-0-0x000000007513E000-0x000000007513F000-memory.dmp
memory/552-1-0x00000000000E0000-0x0000000000178000-memory.dmp
memory/552-2-0x0000000004920000-0x000000000492A000-memory.dmp
memory/552-3-0x00000000049D0000-0x0000000004A62000-memory.dmp
memory/552-4-0x0000000004E20000-0x0000000004E64000-memory.dmp
memory/552-5-0x0000000075130000-0x00000000758E0000-memory.dmp
memory/552-6-0x00000000073D0000-0x000000000746C000-memory.dmp
memory/552-7-0x000000007513E000-0x000000007513F000-memory.dmp
memory/552-8-0x0000000075130000-0x00000000758E0000-memory.dmp
memory/552-9-0x00000000076E0000-0x0000000007746000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpF01D.tmp
| MD5 | b6641dc5108adc81d3db7aae9b3c40b3 |
| SHA1 | 1cea02170cd91f8503e3aecd9790484e701e6427 |
| SHA256 | 8650820b765908d94d24b5824599b04ace28ad0ba0e70c85d0595c3a100ae71c |
| SHA512 | 5d13d7ee183c23cc44c20d6efdc70deb70c5c4229f1a66953cadd16a3bfdcb391d2d17fa2b9c873e35deb1ad7ee1f9a64f03e7a7bf7e58a87512a856f6b1bdb3 |
memory/552-15-0x0000000007860000-0x000000000786A000-memory.dmp
memory/552-16-0x00000000087E0000-0x0000000008D84000-memory.dmp
memory/4992-18-0x0000000000710000-0x000000000073A000-memory.dmp
memory/552-21-0x0000000075130000-0x00000000758E0000-memory.dmp