Analysis
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max time kernel
152s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
23/03/2024, 13:50
Static task
static1
Behavioral task
behavioral1
Sample
45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe
Resource
win11-20240221-en
General
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Target
45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe
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Size
2.2MB
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MD5
4b9151a0fcc00b7ebe774bb2489bc530
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SHA1
40fa43f01b6bdf5e946bb2088fec786f3d3b708a
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SHA256
45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07
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SHA512
8ea55f1c06178f87edade8fbbd4031905195fa86a422d5e07c6c06f2cf538f4649691d867b740a0c6b2a178ab39f7dfde1a95108266e3dff74df33361930866d
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SSDEEP
49152:321Jclh7yWuOym9ASMvcW63qheRFv2vLsmL2H2H5QihKF/nyGH:m1JkuWukASkncRszZ2H2H5NUVnXH
Malware Config
Extracted
socks5systemz
http://buefokn.com/search/?q=67e28dd83a5da32a155afd1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c0ee9c9b3c
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral1/memory/1980-69-0x00000000008F0000-0x0000000000992000-memory.dmp family_socks5systemz behavioral1/memory/1980-80-0x00000000008F0000-0x0000000000992000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 3900 colorpicker.exe 1980 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.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 91.211.247.248 -
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 852 wrote to memory of 3088 852 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe 95 PID 852 wrote to memory of 3088 852 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe 95 PID 852 wrote to memory of 3088 852 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe 95 PID 3088 wrote to memory of 3900 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 100 PID 3088 wrote to memory of 3900 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 100 PID 3088 wrote to memory of 3900 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 100 PID 3088 wrote to memory of 1980 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 102 PID 3088 wrote to memory of 1980 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 102 PID 3088 wrote to memory of 1980 3088 45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp 102
Processes
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C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:852 -
C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp"C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp" /SL5="$A0066,1966609,54272,C:\Users\Admin\AppData\Local\Temp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3088 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:3900
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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:1980
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3700 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:81⤵PID:2156
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.2MB
MD50341a71415d5c43879d5941ca65396ba
SHA18526a5a86e7d11b73633e27629351087079d2291
SHA256fe804d96f2cf809d1e13b9df072c5ee2b44fe71164a845d3cea4041d428203ee
SHA5126498e788438dcbf334176011bbf1a12bd98542552b12af56f2b4a8fc385247e1a1f052dba26211fc72ec1357125d6d800638946c427cc1dcd853353ec7d70f0e
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Filesize
2.0MB
MD5ba680047c6a652b99b0a8c940b845fd0
SHA12815d21e08c32e95d0bc9b72cf554fc74fe9c6e2
SHA256cf520fe196b796c85c4334bca21fefd76f3ef86133ece16120434e4f4ad2c4d2
SHA512c5739d0325a3278080d195ad4d3b95012ddee7e260d3ff7fda29a4d2106eee2a126de1fb8fd36bfef4fb2679efe1ba24602bf9ad4cdd1e9885d6fa9c20b1673e
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-T84VP.tmp\45d3e2a90ffe10319fe19d04af1fbe783101c3be4841710e506ac84d0e882d07.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10