Analysis Overview
SHA256
41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70
Threat Level: Known bad
The file 41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70 was found to be: Known bad.
Malicious Activity Summary
Detect Socks5Systemz Payload
Socks5Systemz
Executes dropped EXE
Loads dropped DLL
Unexpected DNS network traffic destination
Checks installed software on the system
Enumerates physical storage devices
Unsigned PE
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-30 22:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-30 22:50
Reported
2024-05-30 22:55
Platform
win7-20240221-en
Max time kernel
292s
Max time network
283s
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-8JS5D.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
Loads dropped DLL
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 141.98.234.31 | N/A | N/A |
| Destination IP | 91.211.247.248 | N/A | N/A |
Checks installed software on the system
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-8JS5D.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe
"C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe"
C:\Users\Admin\AppData\Local\Temp\is-8JS5D.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp
"C:\Users\Admin\AppData\Local\Temp\is-8JS5D.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp" /SL5="$40016,5775656,54272,C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe"
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
Network
| Country | Destination | Domain | Proto |
| LT | 91.211.247.248:53 | bpyrtne.com | udp |
| BG | 79.110.49.184:80 | bpyrtne.com | tcp |
| BG | 79.110.49.184:80 | bpyrtne.com | tcp |
| BG | 79.110.49.184:80 | bpyrtne.com | tcp |
| HK | 141.98.234.31:53 | gvjcssq.com | udp |
| SE | 45.155.250.229:80 | gvjcssq.com | tcp |
| SE | 45.155.250.229:80 | gvjcssq.com | tcp |
| SE | 45.155.250.229:80 | gvjcssq.com | tcp |
| BG | 194.59.31.219:2023 | tcp |
Files
memory/1732-2-0x0000000000401000-0x000000000040B000-memory.dmp
memory/1732-0-0x0000000000400000-0x0000000000414000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-8JS5D.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp
| MD5 | ef9105d68de970efad785e01b21e4e2b |
| SHA1 | 7fe8801a3e86814972da63a7a943bdc5e31d8888 |
| SHA256 | 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a |
| SHA512 | e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c |
\Users\Admin\AppData\Local\Temp\is-70CD0.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
\Users\Admin\AppData\Local\Temp\is-70CD0.tmp\_isetup\_isdecmp.dll
| MD5 | b6f11a0ab7715f570f45900a1fe84732 |
| SHA1 | 77b1201e535445af5ea94c1b03c0a1c34d67a77b |
| SHA256 | e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67 |
| SHA512 | 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771 |
memory/1908-16-0x0000000000400000-0x00000000004BA000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-70CD0.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
| MD5 | f7c5f033bae9038db16341c15f530d12 |
| SHA1 | 2e4936c96f8e8c3f82a322db4f8e2c975df75e58 |
| SHA256 | 318da3b148a41d15ee1f60c5fdb71145a3459bd673971503b5fc19c7bdbd4683 |
| SHA512 | 5967a6699f4ce7255505632f8c9462dcb55335a22cba903a20a11fad66d322864f2d351a434e386b53f62350cba1d89163c6fa08ca6f816c43d6378c42e133a4 |
memory/1908-67-0x0000000004010000-0x0000000004386000-memory.dmp
memory/2408-68-0x0000000000400000-0x0000000000776000-memory.dmp
memory/2408-69-0x0000000000400000-0x0000000000776000-memory.dmp
memory/2408-72-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-74-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1732-76-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1908-77-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1640-78-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-81-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1908-82-0x0000000004010000-0x0000000004386000-memory.dmp
memory/1640-85-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-88-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-91-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-94-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-95-0x0000000002590000-0x0000000002632000-memory.dmp
memory/1640-101-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-104-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-107-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-110-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-113-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-116-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-119-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-122-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-125-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-129-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-132-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-135-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1640-138-0x0000000000400000-0x0000000000776000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-30 22:50
Reported
2024-05-30 22:55
Platform
win10-20240404-en
Max time kernel
293s
Max time network
307s
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-UESS4.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe | N/A |
Loads dropped DLL
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 141.98.234.31 | N/A | N/A |
| Destination IP | 141.98.234.31 | N/A | N/A |
Checks installed software on the system
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-UESS4.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe
"C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe"
C:\Users\Admin\AppData\Local\Temp\is-UESS4.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp
"C:\Users\Admin\AppData\Local\Temp\is-UESS4.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp" /SL5="$10004A,5775656,54272,C:\Users\Admin\AppData\Local\Temp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.exe"
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -i
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
"C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.0.8.0.8.0.8.0.ip6.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| HK | 141.98.234.31:53 | bpfhmcz.com | udp |
| BG | 79.110.49.184:80 | bpfhmcz.com | tcp |
| US | 8.8.8.8:53 | 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.f.1.a.e.2.6.d.8.ip6.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.246.116.51.in-addr.arpa | udp |
| BG | 79.110.49.184:80 | bpfhmcz.com | tcp |
| BG | 79.110.49.184:80 | bpfhmcz.com | tcp |
| HK | 141.98.234.31:53 | gdkeubw.com | udp |
| SE | 45.155.250.229:80 | gdkeubw.com | tcp |
| NL | 89.105.201.183:2023 | tcp | |
| US | 8.8.8.8:53 | 183.201.105.89.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 229.250.155.45.in-addr.arpa | udp |
| SE | 45.155.250.229:80 | gdkeubw.com | tcp |
| SE | 45.155.250.229:80 | gdkeubw.com | tcp |
Files
memory/2948-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2948-2-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-UESS4.tmp\41acf19ac2b7c8deacf14927dc7fbe9744dc488d3d080ea4aafb2c46e23e3f70.tmp
| MD5 | ef9105d68de970efad785e01b21e4e2b |
| SHA1 | 7fe8801a3e86814972da63a7a943bdc5e31d8888 |
| SHA256 | 381198ca0669ab760f6f9b84e39c39ab5e870f65d17d03ed0dc572a1c602364a |
| SHA512 | e388cbf32a4d833c0e4c6c1a129515b4d12eac5b333f2aec39e741d3a0da856c5923d47cf4d3083ad030f7f07b9214261b2b9119720920dd42929eeb617e779c |
\Users\Admin\AppData\Local\Temp\is-PG5AT.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\Temp\is-PG5AT.tmp\_isetup\_isdecmp.dll
| MD5 | b6f11a0ab7715f570f45900a1fe84732 |
| SHA1 | 77b1201e535445af5ea94c1b03c0a1c34d67a77b |
| SHA256 | e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67 |
| SHA512 | 78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771 |
memory/216-13-0x0000000000400000-0x00000000004BA000-memory.dmp
C:\Users\Admin\AppData\Local\5K Player\5kplayer32.exe
| MD5 | f7c5f033bae9038db16341c15f530d12 |
| SHA1 | 2e4936c96f8e8c3f82a322db4f8e2c975df75e58 |
| SHA256 | 318da3b148a41d15ee1f60c5fdb71145a3459bd673971503b5fc19c7bdbd4683 |
| SHA512 | 5967a6699f4ce7255505632f8c9462dcb55335a22cba903a20a11fad66d322864f2d351a434e386b53f62350cba1d89163c6fa08ca6f816c43d6378c42e133a4 |
memory/4088-65-0x0000000000400000-0x0000000000776000-memory.dmp
memory/4088-66-0x0000000000400000-0x0000000000776000-memory.dmp
memory/4088-69-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-71-0x0000000000400000-0x0000000000776000-memory.dmp
memory/2948-73-0x0000000000400000-0x0000000000414000-memory.dmp
memory/216-74-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/1596-75-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-78-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-81-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-84-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-87-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-90-0x00000000008F0000-0x0000000000992000-memory.dmp
memory/1596-92-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-97-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-100-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-103-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-106-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-109-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-112-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-115-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-118-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-121-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-124-0x00000000008F0000-0x0000000000992000-memory.dmp
memory/1596-125-0x00000000008F0000-0x0000000000992000-memory.dmp
memory/1596-126-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-130-0x0000000000400000-0x0000000000776000-memory.dmp
memory/1596-133-0x0000000000400000-0x0000000000776000-memory.dmp