Analysis
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max time kernel
141s -
max time network
129s -
platform
windows11-21h2_x64 -
resource
win11-20240221-en -
resource tags
arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/03/2024, 15:57
Static task
static1
Behavioral task
behavioral1
Sample
e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral2
Sample
e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe
Resource
win11-20240221-en
General
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Target
e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe
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Size
2.0MB
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MD5
3d69d0f183518f36e7628dad4228969b
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SHA1
8e29d3483612c64ac49989bcefc29d4432ac4a16
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SHA256
e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37
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SHA512
7e14a32c0906235dbc0eb7f557578b90d075be958a08aaa20c3d778b32bf2b9755d6f3b14b0f69d5508c402668f1a53f64db96b99998f3dbf0805abbaa783050
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SSDEEP
49152:32N77AwDGmCur+DkEGhMFrVT5mWpAqp5gWTbuL4uH:mN70i4kFyxBpxp5gmbuL4uH
Malware Config
Extracted
socks5systemz
http://beyrmbd.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe13c0e6919332
http://beyrmbd.com/search/?q=67e28dd86b55fb7a410dae497c27d78406abdd88be4b12eab517aa5c96bd86e891804b875a8bbc896c58e713bc90c91c36b5281fc235a925ed3e07d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee94983bc46b9f1f
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/3484-66-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/3484-70-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/3484-79-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/3484-92-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz behavioral2/memory/3484-93-0x0000000000990000-0x0000000000A32000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 1532 colorpicker.exe 3484 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.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 4696 wrote to memory of 4152 4696 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe 77 PID 4696 wrote to memory of 4152 4696 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe 77 PID 4696 wrote to memory of 4152 4696 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe 77 PID 4152 wrote to memory of 1532 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 78 PID 4152 wrote to memory of 1532 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 78 PID 4152 wrote to memory of 1532 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 78 PID 4152 wrote to memory of 3484 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 79 PID 4152 wrote to memory of 3484 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 79 PID 4152 wrote to memory of 3484 4152 e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp 79
Processes
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C:\Users\Admin\AppData\Local\Temp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe"C:\Users\Admin\AppData\Local\Temp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4696 -
C:\Users\Admin\AppData\Local\Temp\is-L1DKF.tmp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp"C:\Users\Admin\AppData\Local\Temp\is-L1DKF.tmp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp" /SL5="$40232,1752228,54272,C:\Users\Admin\AppData\Local\Temp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4152 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:1532
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C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -s3⤵
- Executes dropped EXE
PID:3484
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.1MB
MD54947e172190fce2d6615b694ce283c75
SHA1f0bed6c45ecdbf4be14cffd527d232dae7784c5e
SHA25643315292e09019cd31c640577d5fee46cf6e5869bbe40ce2a83f32c58ec8e2d2
SHA5120b8a9bc70c38ae62d7a8c3779d30addd12cf026190a72f17760e2ae20f509ecb8aa3fb4637b470fa6f0b862384f28188e43b2531705c265c0f402c21739b7f10
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Filesize
1.8MB
MD50a9e55faf8d8135b696e3a5e354e06e4
SHA1dbb4337aa890f192c55e75581c99496532c6e3fe
SHA256f6bd018ff4541564d7e99e9cd5cc471276324b31a6b3794a8199369ba922f30c
SHA512e31a5cd781dd073ac34c33c4c3957248b9e5ba12dab1de6c09ce3f782af06d4d1c13774b1f557b801309d045c90ab22d95f2bbe3e512cb8ee9b7261771440f89
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Filesize
1.6MB
MD56f1fbce5870a00b11c3108063840a83a
SHA15a7d7f698fd52d12454be461964a84483b56e26d
SHA256299580f3a84f7de0e9538829234c5ee860e00f2d825b4b1c09400871839d3eab
SHA512f840217895d421d092ff993c635744a4d7867b76755a27c761324b977c640ccf64644b35d7eef16e6bd8629c7ab188282dbc4941270883d73b6f08dbabfff6b8
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-L1DKF.tmp\e35e5a2f248207f596081c1ee86b1f43510b4c2b99182fbdcce1bad4fecdbf37.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10