Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2024, 01:32
Static task
static1
Behavioral task
behavioral1
Sample
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
Resource
win10v2004-20240226-en
General
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Target
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe
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Size
2.0MB
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MD5
2f2b5ff3c33c62109f96e65c1d7601b0
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SHA1
aa8cfcbacc165b941199a9d56045933af952f995
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SHA256
37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81
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SHA512
ce770de242104f4f2fe702724f684ee59973cea11e257d997c18eb9f04487b0a6be9843c7b53070243cc2f1dee2a0e540cf1e379b6548cf40cab74a6fbc967ea
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SSDEEP
49152:32m/hFz6e3Bw45KMgwkYfyZYOgzynV0NWp6V/VtqkOVH:mobVwpooYQKcpGahH
Malware Config
Extracted
socks5systemz
http://bennzem.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c3ef91993f
http://bennzem.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12eab517aa5c96bd86ec928648885a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b611e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee949938cd6b9512
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral2/memory/4932-65-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz behavioral2/memory/4932-68-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz behavioral2/memory/4932-77-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz behavioral2/memory/4932-90-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz behavioral2/memory/4932-91-0x0000000000870000-0x0000000000912000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 2236 colorpicker.exe 4932 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.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 3828 wrote to memory of 4248 3828 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 88 PID 3828 wrote to memory of 4248 3828 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 88 PID 3828 wrote to memory of 4248 3828 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe 88 PID 4248 wrote to memory of 2236 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 90 PID 4248 wrote to memory of 2236 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 90 PID 4248 wrote to memory of 2236 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 90 PID 4248 wrote to memory of 4932 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 91 PID 4248 wrote to memory of 4932 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 91 PID 4248 wrote to memory of 4932 4248 37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp 91
Processes
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C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3828 -
C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp"C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp" /SL5="$A006A,1752368,54272,C:\Users\Admin\AppData\Local\Temp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4248 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:2236
-
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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:4932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.1MB
MD5c963718dcfbf0c912a40a46bafcbe6f1
SHA18633310a8cc797a59a63d8fd54456893402296f8
SHA2569cc03473e79df79135bfad64f51cc2ab03eeba069494045a91ddf0d2745345f6
SHA512f9191caf21877ed861ad09019abf50c591ad5bcb2a478e4518e3e7aa64af73373d46c81e8829e80ac8be78be47d4ea83ff1e420e59297d1cff1718c37ca35c65
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Filesize
1.7MB
MD518361dbf1e9dacc639413f34c35304aa
SHA177abee7ae8885acafab508e5f19a2b05af83d204
SHA2566673634427712e06ad830196da3b55897ccab176fa94cb291ddbef2ed16d2434
SHA5121d441744af9117aa59cdf7286998888701c8cb247d61f131df215be701b94c04a65543279d2b6cd755d93cd7303095a47c7bc020cd021047deb9ab9861b3628c
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Filesize
1.3MB
MD56f78cfae7953d991f3790a830a8ac2e0
SHA1e6e1ee1a646a3b14d9dc8cdaf81dec088ce32110
SHA2561c91a62e86173770b5341b43a3833bdc9374a36c6711420744b9ee9fb7820cce
SHA5120949cb742f74740758b6365062a2110eda02523ce496d2d5cf9badd330c190638c3f8a596f19b7f2fcd53f5870d5a9ee83fda60c4d41630ca08bb4d662fc2733
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-S1UGN.tmp\37e9181fda347881a9648496c62b1a970ce2055245db4d936cc8ddf1a20eef81.tmp
Filesize677KB
MD5d394fc26de69f06950dc1c71959b0261
SHA17c9448fc3582f19763eaa8e3c5383b7873aee017
SHA256405e474735b776fc09dc71d3a5b44c50b9e2c745cdf7e79eb89dc791866ffe2a
SHA51263ef7265aac27715f5b799b588955dd5df3f49ecd0042fba69d0effe7dfe24d6777079677a809e817e4e8243a2185ca9c3a8022c9247bb2a070c213f06d7bc10