Analysis
-
max time kernel
148s -
max time network
154s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
24/03/2024, 15:00
Static task
static1
Behavioral task
behavioral1
Sample
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
Resource
win11-20240221-en
General
-
Target
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe
-
Size
2.2MB
-
MD5
8e91ce989f6f12b5296b9f7aa6bd3860
-
SHA1
716c12298bbda1ac368709cc7b6c31833d485976
-
SHA256
74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91
-
SHA512
3fbc6636d3eb723155cb45f8548163d00271733769d6854bd3773406c1acda7253ba07112fd670c72dc48671a671026fe0b3c626f9f1612fb8b9a27e7848018d
-
SSDEEP
49152:32Skfob75L4zrxDpnl+GyL+OYthd1QdNdyvYDCo+jzVeFZDhdI:mSUob14zr1N8BL+OGhUyvY16UnDhdI
Malware Config
Extracted
socks5systemz
http://dtqjhde.info/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c9ed909a39
http://dtqjhde.info/search/?q=67e28dd83d54f12b140cff197c27d78406abdd88be4b12eab517aa5c96bd86ec9c8f44805a8bbc896c58e713bc90c91836b5281fc235a925ed3e01d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee949832cf6a9614
Signatures
-
Detect Socks5Systemz Payload 4 IoCs
resource yara_rule behavioral2/memory/5072-67-0x0000000000970000-0x0000000000A12000-memory.dmp family_socks5systemz behavioral2/memory/5072-77-0x0000000000970000-0x0000000000A12000-memory.dmp family_socks5systemz behavioral2/memory/5072-90-0x0000000000970000-0x0000000000A12000-memory.dmp family_socks5systemz behavioral2/memory/5072-91-0x0000000000970000-0x0000000000A12000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
-
Executes dropped EXE 3 IoCs
pid Process 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 1228 sitefreeedition.exe 5072 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.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.
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2404 wrote to memory of 1020 2404 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 81 PID 2404 wrote to memory of 1020 2404 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 81 PID 2404 wrote to memory of 1020 2404 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe 81 PID 1020 wrote to memory of 1228 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 83 PID 1020 wrote to memory of 1228 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 83 PID 1020 wrote to memory of 1228 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 83 PID 1020 wrote to memory of 5072 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 84 PID 1020 wrote to memory of 5072 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 84 PID 1020 wrote to memory of 5072 1020 74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2404 -
C:\Users\Admin\AppData\Local\Temp\is-9TV9U.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp"C:\Users\Admin\AppData\Local\Temp\is-9TV9U.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp" /SL5="$600DC,1927047,54272,C:\Users\Admin\AppData\Local\Temp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1020 -
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i3⤵
- Executes dropped EXE
PID:1228
-
-
C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe"C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s3⤵
- Executes dropped EXE
PID:5072
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
2.2MB
MD5b347167a660c271a5e46da17b4d2ed2e
SHA11b924c44838230a69a108bb3ca5da4569f44d94b
SHA2562a65cae99af2cc9ecb0bad0276a5c5063c837546723dad07f28457a127949211
SHA5120c8145f72a34a7e9f0739b7541ecf3722cf4fc01ec615dfd988e3ef409b2a4e7360ca8da874701c3fea26aba35339e49595d338c8eff66664bcb0479469999e6
-
Filesize
1.3MB
MD51642df0fefca25a03dfe6b78202f9881
SHA1fa45b836081920fe8b501f79773297b740ed55ce
SHA256ebaadb1179e377dcdbfe742307d7e5ee1662c60925f5514f73974877727ddcb8
SHA512650ee9160a5d300c2f14d7cfbf08982a4159d14daf9ff67fc22681ce9878008d672c422e8bd61087cd1d57db595188f0a6ea2dda43b2e6cde7b83e0a7635b0ac
-
Filesize
704KB
MD560b61cb4f21584ca890e4e5bbee41cfe
SHA132a347ce3a88604811c1f37b92d8c731ff579751
SHA256b1f2859d94faa804215b51a6b50d12c58c074044f8fc72523c7be6ffbadff0fb
SHA512fdcc8290d9f6c4c5a857dfc8c9760e15b3f2c2f85840255fb2eb69fa9bcfbcb3e2693035180a99b96a0d593bddc4120721c9a0f16916f8eb197b413f18fb2190
-
Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
-
C:\Users\Admin\AppData\Local\Temp\is-9TV9U.tmp\74c8cd8ed8ea31c6c767410eb34802743933c4ffdba348f8beb4bb6d07ff0d91.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af