Analysis
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max time kernel
150s -
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
24/03/2024, 15:56
Static task
static1
Behavioral task
behavioral1
Sample
ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe
Resource
win11-20240214-en
General
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Target
ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe
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Size
2.0MB
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MD5
8c1c13798323be32ba6179cf4bc9f6be
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SHA1
0f6f8e59853de96dd56186cb65179351b29610bd
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SHA256
ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4
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SHA512
ab743ce8f676d2c91ae11a3c65a5b0bebbe011a0b6756bfc7bb6c1ab9c77e12a7a89e98d3c8719d9664e0c26f482303aaa299fd799e92dd7b9e5916de60908f5
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SSDEEP
49152:32RULX7V6s/3heWFjK7feeAsCF3xp7OQRj7G9V//ZPjaI:mmLX7os/heWpK7pgpZRj7GzJPjaI
Malware Config
Extracted
socks5systemz
http://csvcbxi.net/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a071ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe13c9ea9d9f39
http://csvcbxi.net/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12eab517aa5c96bd86e590864496148ab2865b77f80ebad9c70f7cb63037ed2ab423a4654383ba915d911ec07bb106a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c1ee97933ec56a94
Signatures
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Detect Socks5Systemz Payload 5 IoCs
resource yara_rule behavioral1/memory/1872-67-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/1872-70-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/1872-79-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/1872-92-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz behavioral1/memory/1872-93-0x00000000008B0000-0x0000000000952000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 3132 sitefreeedition.exe 1872 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.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 152.89.198.214 -
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 3100 wrote to memory of 3320 3100 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe 89 PID 3100 wrote to memory of 3320 3100 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe 89 PID 3100 wrote to memory of 3320 3100 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe 89 PID 3320 wrote to memory of 3132 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 92 PID 3320 wrote to memory of 3132 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 92 PID 3320 wrote to memory of 3132 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 92 PID 3320 wrote to memory of 1872 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 94 PID 3320 wrote to memory of 1872 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 94 PID 3320 wrote to memory of 1872 3320 ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp 94
Processes
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C:\Users\Admin\AppData\Local\Temp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe"C:\Users\Admin\AppData\Local\Temp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3100 -
C:\Users\Admin\AppData\Local\Temp\is-EQOAD.tmp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp"C:\Users\Admin\AppData\Local\Temp\is-EQOAD.tmp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp" /SL5="$F003E,1758683,54272,C:\Users\Admin\AppData\Local\Temp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3320 -
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:3132
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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:1872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.0MB
MD5dc8aedec9118fcb4ab4f8e50928d9e12
SHA1380cb0b101c8d03ece5f91627cb1ca1cca094a33
SHA25684ac321b081589c308bf974c6193891bb8d61bb933443db676ce92bc6553f453
SHA51201a3c95c264c34c428e210ae1f8d7e26f5a8525b4492c04f912ae0710098581635da0f968ec5a3243364956605b8d2b93bb834b10d554007cc6f1e16c4842931
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C:\Users\Admin\AppData\Local\Temp\is-EQOAD.tmp\ec23819b3f561cd470f58ff604599056750fe19acf293f3e7ec5e04de67055c4.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63