Analysis
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max time kernel
141s -
max time network
127s -
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, 18:21
Static task
static1
Behavioral task
behavioral1
Sample
70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe
Resource
win11-20240221-en
General
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Target
70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe
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Size
2.2MB
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MD5
7e73912ed93da7fec76cf2dc5b02a619
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SHA1
f41dab4f82d074ebb604c359f19ee17365bfebbf
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SHA256
70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7
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SHA512
d94c839f4d7c296a7b55b03b4694a38261b86695afbac92a921894f044db75219100a6f5590b1704a8b13a3355afc1596f817131b625282a4fe004bf17f5d814
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SSDEEP
49152:32qdexQWtsW8e1kD9XgbaF2TtOM9UlNQ8qQ1gVWWqjxPAI:mqdexRCe1kJgW2BOV75sqNPAI
Malware Config
Extracted
socks5systemz
http://bdolmbo.com/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a371ea771795af8e05c642db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe12c0eb90993c
http://bdolmbo.com/search/?q=67e28dd8645af52e420aad1d7c27d78406abdd88be4b12eab517aa5c96bd86ef95824a815a8bbc896c58e713bc90c91b36b5281fc235a925ed3e00d6bd974a95129070b611e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94993bc96a9511
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/2964-65-0x0000000000AE0000-0x0000000000B82000-memory.dmp family_socks5systemz behavioral2/memory/2964-70-0x0000000000AE0000-0x0000000000B82000-memory.dmp family_socks5systemz behavioral2/memory/2964-79-0x0000000000AE0000-0x0000000000B82000-memory.dmp family_socks5systemz behavioral2/memory/2964-92-0x0000000000AE0000-0x0000000000B82000-memory.dmp family_socks5systemz behavioral2/memory/2964-93-0x0000000000AE0000-0x0000000000B82000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 3256 sitefreeedition.exe 2964 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.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 2280 wrote to memory of 4888 2280 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe 78 PID 2280 wrote to memory of 4888 2280 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe 78 PID 2280 wrote to memory of 4888 2280 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe 78 PID 4888 wrote to memory of 3256 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 79 PID 4888 wrote to memory of 3256 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 79 PID 4888 wrote to memory of 3256 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 79 PID 4888 wrote to memory of 2964 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 80 PID 4888 wrote to memory of 2964 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 80 PID 4888 wrote to memory of 2964 4888 70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp 80
Processes
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C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp"C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp" /SL5="$700D8,1969563,54272,C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4888 -
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:3256
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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:2964
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD56a4f0286963b6654a1015a20f9cd194e
SHA1098d0aba2c89da4ebd1a1a81879cb7424216d746
SHA25623082683343623420d29cd13e9e6190f8604a800117b162696899dd4f75291b3
SHA512c5df65ea84af160847772496f142f03f64c453a232b09e4681b34967e2631f39f749cf904b5d3a79c865f15f6a6767db00f1463c45d4ba353370a53bdce9c724
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Filesize
1.7MB
MD5c5a2ed215ea7ff5593aab15ec2985cf6
SHA155141beb31e2fc1f327feec0d59a1047fde4dc31
SHA2568f440eeb056de9a38121b76407d57efa14d891627415402eb844c9e70c13f59a
SHA51280aacb557610855252dee96ed5b44a03635f4ee6d01a0f26b2a29739efdecd93975d16da78aade82e281d2e873a9b0a6b8272cba34eb51fa4d37826bae5430ac
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Filesize
1.2MB
MD57c78ba7bfb2f99a2381ae9d4b96f3006
SHA1d9e16a17de4f253cfa74a079ff136426e9c73745
SHA256c9c3a48164d74474c3b9ac5d6a3e26ea211b8168b07b91fab431f01c69803db7
SHA512e198d960981fc0fe40dfdfd127c677e7931807f64364ffceeb1de2310bfbee1f9f30bbf3f31057dbb1b16d3ec8ca43741371b58f9e7f86b68e9249ede88f7dbc
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C:\Users\Admin\AppData\Local\Temp\is-A5L6R.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63