Analysis Overview
SHA256
0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455
Threat Level: Known bad
The file crt.exe was found to be: Known bad.
Malicious Activity Summary
Socks5Systemz
Detect Socks5Systemz Payload
Executes dropped EXE
Loads dropped DLL
Unexpected DNS network traffic destination
Checks installed software on the system
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-11 21:27
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-11 21:27
Reported
2024-08-11 21:29
Platform
win7-20240708-en
Max time kernel
150s
Max time network
138s
Command Line
Signatures
Detect Socks5Systemz Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\crt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 152.89.198.214 | N/A | N/A |
Checks installed software on the system
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\crt.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\crt.exe
"C:\Users\Admin\AppData\Local\Temp\crt.exe"
C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp
"C:\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp" /SL5="$70216,3880008,54272,C:\Users\Admin\AppData\Local\Temp\crt.exe"
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| RU | 152.89.198.214:53 | bfdsrri.com | udp |
| CH | 185.196.8.214:80 | bfdsrri.com | tcp |
Files
memory/2556-3-0x0000000000401000-0x000000000040B000-memory.dmp
memory/2556-0-0x0000000000400000-0x0000000000414000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-2DKHN.tmp\crt.tmp
| MD5 | 00f15ee57af82fc40ac1ec609d1810a4 |
| SHA1 | 6abfae4f73ade5af54d267c02389daf49abd6a51 |
| SHA256 | 20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847 |
| SHA512 | f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c |
\Users\Admin\AppData\Local\Temp\is-9VJBL.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
memory/2232-11-0x0000000000400000-0x00000000004BD000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-9VJBL.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
\Users\Admin\AppData\Local\Temp\is-9VJBL.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
| MD5 | 0ce21a5f4358ff7d673e423c229b6ef5 |
| SHA1 | 4244e89af3f2aa98dd5ea6fd70d8704b29f9b1c5 |
| SHA256 | 950eb214c8aaa1aef01266126441cb55ab8216bf0989778f2f1973af02ead85b |
| SHA512 | af2665c210c9b0e11dc25cd4c05c4255e9f2195756bdb060e9ed3ea0065600114cdf09f165127bc9d52ee489b2eea2c52a67d8c0679eb9eb4e36fa359e467f95 |
memory/2604-60-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2232-59-0x0000000004770000-0x0000000004ABA000-memory.dmp
memory/2604-61-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2604-65-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-68-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2556-70-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2232-71-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2656-74-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-77-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-78-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-83-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-86-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-89-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-90-0x00000000022E0000-0x0000000002382000-memory.dmp
memory/2656-94-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-99-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-102-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-103-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-106-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-111-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-115-0x0000000000400000-0x000000000074A000-memory.dmp
memory/2656-116-0x0000000000400000-0x000000000074A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-11 21:27
Reported
2024-08-11 21:29
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Detect Socks5Systemz 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 |
Socks5Systemz
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 152.89.198.214 | N/A | N/A |
Checks installed software on the system
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\crt.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\crt.exe
"C:\Users\Admin\AppData\Local\Temp\crt.exe"
C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp
"C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp" /SL5="$12003A,3880008,54272,C:\Users\Admin\AppData\Local\Temp\crt.exe"
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
"C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| RU | 152.89.198.214:53 | bpqudeb.com | udp |
| US | 8.8.8.8:53 | 214.198.89.152.in-addr.arpa | udp |
| CH | 185.196.8.214:80 | bpqudeb.com | tcp |
| NL | 45.156.23.96:2023 | tcp | |
| US | 8.8.8.8:53 | 96.23.156.45.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 214.8.196.185.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.179.89.13.in-addr.arpa | udp |
Files
memory/876-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/876-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-1129O.tmp\crt.tmp
| MD5 | 00f15ee57af82fc40ac1ec609d1810a4 |
| SHA1 | 6abfae4f73ade5af54d267c02389daf49abd6a51 |
| SHA256 | 20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847 |
| SHA512 | f9ab66c722b37cdb96f1a547a2c2d1c870b4966f27fee269bf65d47a506c2fcb0eab1ac168d0b4246ec336b23694d3c675d5be48f3338b79b76407c31cdad24c |
memory/3556-10-0x0000000000400000-0x00000000004BD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-B4AKB.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\Temp\is-B4AKB.tmp\_isetup\_isdecmp.dll
| MD5 | a813d18268affd4763dde940246dc7e5 |
| SHA1 | c7366e1fd925c17cc6068001bd38eaef5b42852f |
| SHA256 | e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64 |
| SHA512 | b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4 |
C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
| MD5 | 0ce21a5f4358ff7d673e423c229b6ef5 |
| SHA1 | 4244e89af3f2aa98dd5ea6fd70d8704b29f9b1c5 |
| SHA256 | 950eb214c8aaa1aef01266126441cb55ab8216bf0989778f2f1973af02ead85b |
| SHA512 | af2665c210c9b0e11dc25cd4c05c4255e9f2195756bdb060e9ed3ea0065600114cdf09f165127bc9d52ee489b2eea2c52a67d8c0679eb9eb4e36fa359e467f95 |
memory/4184-58-0x0000000000400000-0x000000000074A000-memory.dmp
memory/4184-59-0x0000000000400000-0x000000000074A000-memory.dmp
memory/4184-61-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-65-0x0000000000400000-0x000000000074A000-memory.dmp
memory/876-66-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3556-67-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/3084-68-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-71-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-74-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-77-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-80-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-83-0x0000000000A50000-0x0000000000AF2000-memory.dmp
memory/3084-85-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-90-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-93-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-96-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-99-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-102-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-105-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-106-0x0000000000A50000-0x0000000000AF2000-memory.dmp
memory/3084-107-0x0000000000A50000-0x0000000000AF2000-memory.dmp
memory/3084-111-0x0000000000400000-0x000000000074A000-memory.dmp
memory/3084-114-0x0000000000400000-0x000000000074A000-memory.dmp