Analysis
-
max time kernel
142s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
04/08/2024, 09:56
Static task
static1
Behavioral task
behavioral1
Sample
6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral2
Sample
6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe
Resource
win11-20240802-en
General
-
Target
6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe
-
Size
3.6MB
-
MD5
28d59e3ccaffa48b2964952d3320bf67
-
SHA1
00e8c20b175423088dcd36b5d5c9f11a6735c865
-
SHA256
6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2
-
SHA512
0861e2e3d4d513fa1ce6d125e3fcec659dff99b3ec6290219441545af92cdb4550e9ea9b2f3ad86ee5e99659650dd059e656901c948cb71ac972c58f0a5fbc49
-
SSDEEP
98304:NSLZ33HRTKoyhmC6UzD02qxGtOsG09ht/LEeyhF8dt:U9hTohmC6r7GAYT/LS8T
Malware Config
Signatures
-
Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/1672-76-0x0000000000940000-0x00000000009E2000-memory.dmp family_socks5systemz behavioral1/memory/1672-100-0x0000000000940000-0x00000000009E2000-memory.dmp family_socks5systemz behavioral1/memory/1672-101-0x0000000000940000-0x00000000009E2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
pid Process 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 872 combinerfree.exe 1672 combinerfree.exe -
Loads dropped DLL 1 IoCs
pid Process 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.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.
-
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language combinerfree.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language combinerfree.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 212 wrote to memory of 2628 212 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe 85 PID 212 wrote to memory of 2628 212 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe 85 PID 212 wrote to memory of 2628 212 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe 85 PID 2628 wrote to memory of 872 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 87 PID 2628 wrote to memory of 872 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 87 PID 2628 wrote to memory of 872 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 87 PID 2628 wrote to memory of 1672 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 88 PID 2628 wrote to memory of 1672 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 88 PID 2628 wrote to memory of 1672 2628 6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe"C:\Users\Admin\AppData\Local\Temp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212 -
C:\Users\Admin\AppData\Local\Temp\is-ARTR0.tmp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp"C:\Users\Admin\AppData\Local\Temp\is-ARTR0.tmp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp" /SL5="$12004C,3498625,54272,C:\Users\Admin\AppData\Local\Temp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2628 -
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree.exe" -i3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:872
-
-
C:\Users\Admin\AppData\Local\Combiner Free\combinerfree.exe"C:\Users\Admin\AppData\Local\Combiner Free\combinerfree.exe" -s3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1672
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.8MB
MD5b024f70ea23c885dbfb9d7fbe1f63337
SHA16f6ccfbc40f7c6decb61efa127bf15c85cda762d
SHA256fde113cf30161b4d9b53d83abe4e257eda0ceb7c6881da32bae924123641849b
SHA5124c5ebdc95174230c27f0bcaa9b21b061db99fc475721aabc909ceadb6d57453f3d586ccc3731feae248da7d167a497f95193ff66bace1cb8b775d8f13e7bcce8
-
C:\Users\Admin\AppData\Local\Temp\is-ARTR0.tmp\6751bebfe1f1454332d3bee1b7e9946f5720ddf4608cc4233c5b18916ea74cc2.tmp
Filesize692KB
MD557cadefd8d9a7bec777ab1e7a1329b43
SHA1a9e5bf8cc5456e109a9d6356988f7ff8a9da299f
SHA256241a3f9c3a0e0e477eb0b67acabaf0911d6a44bcbeefb001de35b5427ff3dacc
SHA512850893c27ea24d9c1891dc7556ea3bb0f517b559fa80079f5e3b583ba7b2ba8c7c20f52afcf56d844829ca852222638f0f1f6452ac8f94b36356e938dcfe0306
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63