Analysis Overview
SHA256
025d0d86a0f636647681f95d1b9db3067fc854b81925915680118ae586b80cf0
Threat Level: Known bad
The file 321e35385a1910a07011008666e9b09c.exe was found to be: Known bad.
Malicious Activity Summary
Detect Socks5Systemz Payload
Socks5Systemz
Unexpected DNS network traffic destination
Executes dropped EXE
Loads dropped DLL
Checks installed software on the system
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-11 01:11
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-11 01:11
Reported
2024-06-11 01:13
Platform
win7-20240508-en
Max time kernel
150s
Max time network
148s
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-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 45.155.250.90 | N/A | N/A |
| Destination IP | 152.89.198.214 | 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-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe
"C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe"
C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp" /SL5="$500B6,4779156,54272,C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe"
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s
Network
| Country | Destination | Domain | Proto |
| SE | 45.155.250.90:53 | bpugmei.com | udp |
| RU | 152.89.198.214:53 | bpugmei.com | udp |
| N/A | 91.211.247.248:53 | udp |
Files
memory/1712-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/1712-3-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-A147N.tmp\321e35385a1910a07011008666e9b09c.tmp
| MD5 | 6d75c2498ef0af9a91b71d0d81d1b95e |
| SHA1 | 1476ec8e947af9a397658bec20b17854042cc0c3 |
| SHA256 | 468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee |
| SHA512 | bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027 |
memory/2472-9-0x0000000000400000-0x00000000004BA000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-IJ79T.tmp\_isetup\_shfoldr.dll
| MD5 | 92dc6ef532fbb4a5c3201469a5b5eb63 |
| SHA1 | 3e89ff837147c16b4e41c30d6c796374e0b8e62c |
| SHA256 | 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87 |
| SHA512 | 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3 |
\Users\Admin\AppData\Local\Temp\is-IJ79T.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
| MD5 | c64ca6ca69c83f19a71749f8bd5e5fc5 |
| SHA1 | 7fd985230a5535c1b6bbfc1d703ecf91e8247739 |
| SHA256 | e6f4a8061032f1f5d1eb8eab50ababb644e301d2f5e5f98670dfebb0dca32b55 |
| SHA512 | 4f04ad5363552bad2710e66965465ec3005b4bedccedf16f9b6b35b6421e47087cd5c9b231410df6fd9ac31139c996f91346045cf477f2bb387cc34a60a51a3e |
memory/2472-64-0x0000000003520000-0x0000000003804000-memory.dmp
memory/2608-65-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2608-66-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2608-70-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/1712-73-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2472-74-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2532-75-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2472-76-0x0000000003520000-0x0000000003804000-memory.dmp
memory/2532-79-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-82-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-85-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-88-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-91-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-92-0x00000000024D0000-0x0000000002572000-memory.dmp
memory/2532-98-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-101-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-104-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-107-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-110-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-113-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-116-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2532-119-0x0000000000400000-0x00000000006E4000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-11 01:11
Reported
2024-06-11 01:13
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
151s
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-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| 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-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe
"C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe"
C:\Users\Admin\AppData\Local\Temp\is-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp" /SL5="$9011A,4779156,54272,C:\Users\Admin\AppData\Local\Temp\321e35385a1910a07011008666e9b09c.exe"
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -i
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe" -s
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.110.63.41.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| HK | 141.98.234.31:53 | bfwspzt.com | udp |
| BG | 93.123.39.193:80 | bfwspzt.com | tcp |
| US | 8.8.8.8:53 | 31.234.98.141.in-addr.arpa | udp |
| BG | 93.123.39.193:80 | bfwspzt.com | tcp |
| BG | 93.123.39.193:80 | bfwspzt.com | tcp |
Files
memory/4352-0-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4352-3-0x0000000000401000-0x000000000040B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-C0J8D.tmp\321e35385a1910a07011008666e9b09c.tmp
| MD5 | 6d75c2498ef0af9a91b71d0d81d1b95e |
| SHA1 | 1476ec8e947af9a397658bec20b17854042cc0c3 |
| SHA256 | 468db6dd9e5c87c34d9cb7e56ddbfaf068bbe44436fa2cfc2ada8029051e4bee |
| SHA512 | bdc9b460a463da60c019eda9dd40929a61e77081b699d6c3a4c05309280252f7493015cf463243ff9dd3e20ddd324db39a8697f312fabfea64c78aed9ddb5027 |
memory/3640-13-0x0000000000400000-0x00000000004BA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-BU8OD.tmp\_isetup\_iscrypt.dll
| MD5 | a69559718ab506675e907fe49deb71e9 |
| SHA1 | bc8f404ffdb1960b50c12ff9413c893b56f2e36f |
| SHA256 | 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc |
| SHA512 | e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63 |
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard32.exe
| MD5 | c64ca6ca69c83f19a71749f8bd5e5fc5 |
| SHA1 | 7fd985230a5535c1b6bbfc1d703ecf91e8247739 |
| SHA256 | e6f4a8061032f1f5d1eb8eab50ababb644e301d2f5e5f98670dfebb0dca32b55 |
| SHA512 | 4f04ad5363552bad2710e66965465ec3005b4bedccedf16f9b6b35b6421e47087cd5c9b231410df6fd9ac31139c996f91346045cf477f2bb387cc34a60a51a3e |
memory/624-59-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/624-60-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/624-61-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/624-65-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-68-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/4352-69-0x0000000000400000-0x0000000000414000-memory.dmp
memory/3640-70-0x0000000000400000-0x00000000004BA000-memory.dmp
memory/2072-71-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-74-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-77-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-80-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-83-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-86-0x0000000002550000-0x00000000025F2000-memory.dmp
memory/2072-89-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-94-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-97-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-100-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-103-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-106-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-109-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-112-0x0000000000400000-0x00000000006E4000-memory.dmp
memory/2072-115-0x0000000000400000-0x00000000006E4000-memory.dmp