Analysis
-
max time kernel
300s -
max time network
272s -
platform
windows10-1703_x64 -
resource
win10-20231023-en -
resource tags
arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system -
submitted
11/12/2023, 05:02
Static task
static1
Behavioral task
behavioral1
Sample
7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe
Resource
win10-20231023-en
General
-
Target
7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe
-
Size
8.0MB
-
MD5
fd7f0fbf9e8e5fce5356d5751ef21d68
-
SHA1
383ce87147caee8793ed6b923a8587d96682a06c
-
SHA256
7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876
-
SHA512
e6688fcafd3c271319e2a6dac2c7523d9f497fe04e63c0710d45e10a9f94c74a867ac8d4af83b78348a5312b2f9eb3eb8a5729f099560cd33567c0375ca62636
-
SSDEEP
196608:G4lBu+BpMBvbZVlSloOBs8Awr2wI2CqPb4oMvTwaqd:ChPvMVsDv0v
Malware Config
Extracted
socks5systemz
-
rc4_key
i4hiea56#7b&dfw3
Signatures
-
Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/4444-180-0x0000000000990000-0x0000000000A3D000-memory.dmp family_socks5systemz behavioral2/memory/4444-189-0x0000000000990000-0x0000000000A3D000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
pid Process 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 3212 LibsaxCRT.exe 4444 LibsaxCRT.exe -
Loads dropped DLL 3 IoCs
pid Process 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 45.155.250.90 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Drops file in Program Files directory 63 IoCs
description ioc Process File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-O6G2K.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-6L8R1.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-15CGB.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-217O6.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File opened for modification C:\Program Files (x86)\LibsaxCRT\LibsaxCRT.exe 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-VHUJ4.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-NGJUG.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-E4R6O.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-341HC.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-9UHDL.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\lessmsi\is-N9SVI.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-51CPN.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-3NSAN.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-KNP0F.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-UC7T6.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-O765A.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-M4VUR.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-D6F6H.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-FS91K.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-BHPIH.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-IU7H0.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\stuff\is-FMQO8.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-VIIHH.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-BJ3OR.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\stuff\is-I40SG.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-8CS4F.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-JMHSN.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-A8SQ8.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-K4NB5.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-0H1OA.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\stuff\is-Q6CAS.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-HSA1L.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-CQR5T.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\install\unins000.dat 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\plugins\internal\is-VT1B1.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-3SKS3.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-F5ECR.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-8FFIS.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-NJR6B.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-U3CIJ.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-QE4FO.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\install\is-0J68R.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-UO53U.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-RUMQE.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\is-MFIOJ.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-6GH84.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-A2PKB.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-I1D65.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-TPC02.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-AB7S1.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-CS7GT.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-D4SVE.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-Q2BUD.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File opened for modification C:\Program Files (x86)\LibsaxCRT\install\unins000.dat 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-V3685.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-GIC1C.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\plugins\internal\is-6K7SD.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-4B6A5.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-RI5RC.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-OBQDO.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\stuff\is-E6RBD.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-GK47B.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp File created C:\Program Files (x86)\LibsaxCRT\bin\x86\is-LUO55.tmp 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp -
Runs net.exe
-
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1832 wrote to memory of 4124 1832 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe 71 PID 1832 wrote to memory of 4124 1832 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe 71 PID 1832 wrote to memory of 4124 1832 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe 71 PID 4124 wrote to memory of 3960 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 72 PID 4124 wrote to memory of 3960 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 72 PID 4124 wrote to memory of 3960 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 72 PID 4124 wrote to memory of 3212 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 74 PID 4124 wrote to memory of 3212 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 74 PID 4124 wrote to memory of 3212 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 74 PID 4124 wrote to memory of 3764 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 77 PID 4124 wrote to memory of 3764 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 77 PID 4124 wrote to memory of 3764 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 77 PID 4124 wrote to memory of 4444 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 76 PID 4124 wrote to memory of 4444 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 76 PID 4124 wrote to memory of 4444 4124 7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp 76 PID 3764 wrote to memory of 3924 3764 net.exe 78 PID 3764 wrote to memory of 3924 3764 net.exe 78 PID 3764 wrote to memory of 3924 3764 net.exe 78
Processes
-
C:\Users\Admin\AppData\Local\Temp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe"C:\Users\Admin\AppData\Local\Temp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1832 -
C:\Users\Admin\AppData\Local\Temp\is-AU5E9.tmp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp"C:\Users\Admin\AppData\Local\Temp\is-AU5E9.tmp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp" /SL5="$5023A,8125485,54272,C:\Users\Admin\AppData\Local\Temp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:3960
-
-
C:\Program Files (x86)\LibsaxCRT\LibsaxCRT.exe"C:\Program Files (x86)\LibsaxCRT\LibsaxCRT.exe" -i3⤵
- Executes dropped EXE
PID:3212
-
-
C:\Program Files (x86)\LibsaxCRT\LibsaxCRT.exe"C:\Program Files (x86)\LibsaxCRT\LibsaxCRT.exe" -s3⤵
- Executes dropped EXE
PID:4444
-
-
C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 63⤵
- Suspicious use of WriteProcessMemory
PID:3764 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 64⤵PID:3924
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
3.9MB
MD54b3fb9de0070d2123130d32764119eea
SHA13d9fcfe6df9e43432e96fd068eb4ab73e34d38c8
SHA25615bb10f1a2464955a58ffd7b846a51e7c286197b9eb2dbf18272ea65fab9d805
SHA512aefa7c94ababf99bc6c9309c2037b6a7ce8a339784a6496087786856dd487943f8bc6a2af292d6f36f5294588cacf2f761802a0b61c4a94aa23f2452444f5047
-
C:\Users\Admin\AppData\Local\Temp\is-AU5E9.tmp\7d661992e881431b0bfe2b95f44a509c790ae0330c1c0cc7446ab0a707ea7876.tmp
Filesize694KB
MD55525670a9e72d77b368a9aa4b8c814c1
SHA13fdad952ea00175f3a6e549b5dca4f568e394612
SHA2561180706added2a7899f08f25a9f88ecff5d003ba8964f918d00779565e4a6978
SHA512757249f7e67f82522a8e3079a22c5cf92111626446a32ad3ef876f23885f62d1bb5bf3238d564e23531d062fe18742568dfc00e33b049bb8eef05eb953ef981a
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4