Analysis
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max time kernel
144s -
max time network
158s -
platform
windows11-21h2_x64 -
resource
win11-20240319-en -
resource tags
arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/03/2024, 11:14
Static task
static1
Behavioral task
behavioral1
Sample
5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe
Resource
win11-20240319-en
General
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Target
5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe
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Size
2.0MB
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MD5
ff576bc35cf98eee07585ae5b7c88efc
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SHA1
df8c450c6966db774d06ab8d2feeb97374cda260
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SHA256
5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3
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SHA512
a5303ab816eb67f3d517757d07fc8cd1b8a2e6bd4869ca9744405c9ea75c95f5f058301a9ce7ebf99e407504a51d6c879b06018f44dfde24b38d3c1eed815317
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SSDEEP
49152:32pu+svTDBZMqdkzssuHTSJf20pom5PRXLFzGHWkme7D:mpfMTDBmeUss8TS52teJXc2kmc
Malware Config
Extracted
socks5systemz
http://ejjvzpz.ua/search/?q=67e28dd83e58f128495cab1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c644db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffe10c9ed909f3b
Signatures
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Detect Socks5Systemz Payload 2 IoCs
resource yara_rule behavioral2/memory/1860-67-0x0000000000900000-0x00000000009A2000-memory.dmp family_socks5systemz behavioral2/memory/1860-77-0x0000000000900000-0x00000000009A2000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 4672 colorpicker.exe 1860 colorpicker.exe -
Loads dropped DLL 1 IoCs
pid Process 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.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 3484 wrote to memory of 4576 3484 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe 80 PID 3484 wrote to memory of 4576 3484 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe 80 PID 3484 wrote to memory of 4576 3484 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe 80 PID 4576 wrote to memory of 4672 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 82 PID 4576 wrote to memory of 4672 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 82 PID 4576 wrote to memory of 4672 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 82 PID 4576 wrote to memory of 1860 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 83 PID 4576 wrote to memory of 1860 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 83 PID 4576 wrote to memory of 1860 4576 5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp 83
Processes
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C:\Users\Admin\AppData\Local\Temp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe"C:\Users\Admin\AppData\Local\Temp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp"C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp" /SL5="$40242,1756523,54272,C:\Users\Admin\AppData\Local\Temp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4576 -
C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe"C:\Users\Admin\AppData\Local\Color Picker\colorpicker.exe" -i3⤵
- Executes dropped EXE
PID:4672
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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:1860
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
960KB
MD5548d16f6d9364b551f3982034c053eb3
SHA11bcff76cc01a29550bf5ba196cca79501da5e5b5
SHA2566c7b61d3fa42304d74a68a62fc4afe29b30225e6cdd3b5391cb8060c9de235c2
SHA51212bd999e3d5921dd98b813317baefe8a0a14504e3f61e6e08600f67dd9fde176bc2c16756229bb4804914a28f03425a372b3a407da448a24addc19fddd5bea80
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Filesize
27KB
MD5f29d05321759609efa001b53af993bf6
SHA135e2dba02060a00f795c1c8848439c2ed1ab5b12
SHA25688663bb84e61233419ae2bda03f04e082ddc65f1f8a1b9be5be9502f687f3858
SHA51295c00fac3d3534b0037a713c895e543b2ef358ca02843bf6ebab8cbacff9ac9169ef1e870a4cd19f70b350c4115ab6bef577ddc8847457c97a9f791d996844aa
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Filesize
1.4MB
MD5d2f9905e704936d346bf56aa46a1b8b7
SHA163f29f6350cae7c76625195994b06c1480488de7
SHA25657f0444592f3b5768050fa5cfcf61c662bca0d532d549bd063eadcce9f35cfe1
SHA5129540ea6522b3b33c228af137e16bd887a146ebca8765fb1b119260d6f5b4edf8082d1b41d8c0fa8245c549c804ffe1194678f0cfdb7be3d02d16fcb4fe6bf256
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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C:\Users\Admin\AppData\Local\Temp\is-J4UCT.tmp\5efbaefdce3a26480ee245f904a49ea2b7a1edc0a48934bd94dd8a74d3b724c3.tmp
Filesize677KB
MD592f7775908bb12183914bb0753782913
SHA18d1091da36832942d48f2fe9a1a216fdd556b9c4
SHA256a43c4e3916a92d299c22e2010383b2a8f85e14882a610de57bb2fef91f7984ed
SHA5127e39cafdc00a46f2353f6eeaa8fee0d7c94f489d1fd4581e125408bae63a2e6cd135f65807c3574c833f970b64106badb7dd0a2a6ee9859b3b60b3d1b6e19c39