Analysis
-
max time kernel
293s -
max time network
281s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
30-05-2024 22:47
Static task
static1
Behavioral task
behavioral1
Sample
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe
Resource
win10-20240404-en
General
-
Target
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe
-
Size
5.4MB
-
MD5
3096abab9f77f9a27074ab83e4708c19
-
SHA1
1d871bfcef5a09934edd76b68232a32e33b1b4af
-
SHA256
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539
-
SHA512
78a38f3253c6066e3b77716d338e50bb2aad73bb800e915683b816b672710b6998c346d15e1e2041bfdd56c0c28407ad2583ed1bf62a17d796492a5dbfcc9953
-
SSDEEP
98304:mlEuY2+murXnhkOrQ2stNwxpaqufUaGYMbSqm9bzsZdH5E7xngm4Y:09QnhQHwp3KUXbS/7tgm4Y
Malware Config
Signatures
-
Detect Socks5Systemz Payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/2500-96-0x0000000002690000-0x0000000002732000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
Processes:
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmpfiaudioconverter.exefiaudioconverter.exepid process 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp 2868 fiaudioconverter.exe 2500 fiaudioconverter.exe -
Loads dropped DLL 6 IoCs
Processes:
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmppid process 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp -
Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
Processes:
description ioc Destination IP 152.89.198.214 Destination IP 152.89.198.214 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmppid process 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmpdescription pid process target process PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1576 wrote to memory of 1388 1576 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp PID 1388 wrote to memory of 2868 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2868 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2868 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2868 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2500 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2500 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2500 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe PID 1388 wrote to memory of 2500 1388 3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp fiaudioconverter.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe"C:\Users\Admin\AppData\Local\Temp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1576 -
C:\Users\Admin\AppData\Local\Temp\is-5BA1U.tmp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp"C:\Users\Admin\AppData\Local\Temp\is-5BA1U.tmp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp" /SL5="$4010A,5417366,54272,C:\Users\Admin\AppData\Local\Temp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -i3⤵
- Executes dropped EXE
PID:2868
-
-
C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe"C:\Users\Admin\AppData\Local\FIaudioConverter\fiaudioconverter.exe" -s3⤵
- Executes dropped EXE
PID:2500
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.8MB
MD58324cdab3e68429f86f378d81e6f3913
SHA1e60cfc494a09b280fde9d23ee4ffee68aaacd695
SHA2562d356ffacb01af22cc06e089702c9404dc3811eca6d7526d06940ae301e6c9e1
SHA5124f143c2e463b3bf473d8b254ac757aec13b9f444cfea5537594ce0283880712ff3895110538b7faa8a761d71bcd0e3e8da48b89d03311a5e06809ad28357affb
-
\Users\Admin\AppData\Local\Temp\is-5BA1U.tmp\3b787f3b4d8f0ed0b4739faae0a24307a54e0d01abf70d84d21a658423f9b539.tmp
Filesize680KB
MD5791348257179b7a0bd2a513fc9b19618
SHA1783834fa3c937de3d5cefc1e72cfd0cc63c657fc
SHA2565cdf04dee7d14c9c6d768d5c3092979f3be25f5148ef39051dee584a662c921c
SHA5128e68ed3e98f5066e5aa61e30fbe24ab500274e7994d74e8b167f5cd2b1512dde8a5c89cb5a8eedd4ae67b1414c08b312c999e79008d9e7c0255cb0c1a323ab63
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
Filesize
13KB
MD5a813d18268affd4763dde940246dc7e5
SHA1c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA256e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
SHA512b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
-
Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3