Analysis
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max time kernel
153s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
24/03/2024, 17:33
Static task
static1
Behavioral task
behavioral1
Sample
6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe
Resource
win11-20240319-en
General
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Target
6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe
-
Size
2.2MB
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MD5
1a489ca4bdfa6ea3a6430bf966707379
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SHA1
286d9051f5e278a41d00afb4b2fd852f02061ec9
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SHA256
6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7
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SHA512
6eedc23a6814ebcafe29a3aa6694e85bd904359c8b9d106aec10779bd106e3891e13ed463fbe835a8448b9b1414845d96bee91853f5a29ab635ceec19d590b60
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SSDEEP
49152:32c3kPZbNm6fSEhfqZhgRigMmsbZ0QM0TxI:mysoKUZhqMms+QMmI
Malware Config
Extracted
socks5systemz
http://ezhgixg.ua/search/?q=67e28dd86f5af1211209a81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f071ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c0ee939c33
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral1/memory/3876-68-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz behavioral1/memory/3876-78-0x00000000009A0000-0x0000000000A42000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 1984 sitefreeedition.exe 3876 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.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.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4740 wrote to memory of 2384 4740 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe 91 PID 4740 wrote to memory of 2384 4740 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe 91 PID 4740 wrote to memory of 2384 4740 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe 91 PID 2384 wrote to memory of 1984 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 92 PID 2384 wrote to memory of 1984 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 92 PID 2384 wrote to memory of 1984 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 92 PID 2384 wrote to memory of 3876 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 93 PID 2384 wrote to memory of 3876 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 93 PID 2384 wrote to memory of 3876 2384 6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp 93
Processes
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C:\Users\Admin\AppData\Local\Temp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe"C:\Users\Admin\AppData\Local\Temp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp"C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp" /SL5="$4011A,1965922,54272,C:\Users\Admin\AppData\Local\Temp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2384 -
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:1984
-
-
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:3876
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD5355fab8714f0d248c3b86fd4397f0299
SHA1eaf7221379ca0791a3a28ef2f0f2369edc5433ba
SHA2563437eea441202018e43dc7fd474f95b4bfdf67416a4de3804b71798d24e7526c
SHA51291b6d7f06441a08925a38878f7902c17a400f192ecdc40efd8d72a7d2b57bdf8c183fc77e66ef1078b4981fd94fc79b6fcc8e53c7932f0122e304a3c12573154
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Filesize
1.7MB
MD520ee241c4237d6da8aacc389c48fe88c
SHA13b69158bcfcd57d074850bf78afe8654d3c221ea
SHA256b2045115a2cf9335d4ff1fbf0f45a0b1e1a1051a051cba10221820eb85de0d85
SHA512545af02ea4dba811087d7463320dcd70957cc065e3b7a868b999391d43e2d92fdf79d6df22e095111a03c29790cb10de1dec7aa48d31e4b8cd4256e9f1985bd7
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-GV801.tmp\6bd95e17e7cdf399aa6d2405bed57c91112ada2830d9298ec637c07a3aaa4af7.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af