Analysis
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max time kernel
149s -
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, 17:35
Static task
static1
Behavioral task
behavioral1
Sample
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
Resource
win10v2004-20240226-en
Behavioral task
behavioral2
Sample
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
Resource
win11-20240221-en
General
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Target
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe
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Size
2.0MB
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MD5
c4e8146864f98ad993f1483174635ad1
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SHA1
1ab7de41fffe40a1611e5deec20ea313188b1539
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SHA256
ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4
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SHA512
d1784df7c8c626f1f15c938405823b9fb926584becfc2f34e8afec995f5bca50b542831f7cc36598a80d2cb4a0d5b4fde1008499f5d8ef3b7cc25bd8d4a5d38e
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SSDEEP
49152:32Yv6dMl3Y0IIwXgSduJFHoX6RmrJ/ajQDFg0qwbplXY0WFI:mYi2l5I7mHw6REJ/WWNbYPFI
Malware Config
Extracted
socks5systemz
http://bwkjkpz.com/search/?q=67e28dd8655ba479120da84d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a071ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe12c0ee9d9b38
Signatures
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Detect Socks5Systemz Payload 3 IoCs
resource yara_rule behavioral1/memory/4476-65-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz behavioral1/memory/4476-69-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz behavioral1/memory/4476-78-0x00000000021A0000-0x0000000002242000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 1064 sitefreeedition.exe 4476 sitefreeedition.exe -
Loads dropped DLL 1 IoCs
pid Process 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.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 4924 wrote to memory of 4536 4924 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 90 PID 4924 wrote to memory of 4536 4924 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 90 PID 4924 wrote to memory of 4536 4924 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe 90 PID 4536 wrote to memory of 1064 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 93 PID 4536 wrote to memory of 1064 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 93 PID 4536 wrote to memory of 1064 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 93 PID 4536 wrote to memory of 4476 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 94 PID 4536 wrote to memory of 4476 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 94 PID 4536 wrote to memory of 4476 4536 ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp 94
Processes
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C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Users\Admin\AppData\Local\Temp\is-60389.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp"C:\Users\Admin\AppData\Local\Temp\is-60389.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp" /SL5="$E0028,1776977,54272,C:\Users\Admin\AppData\Local\Temp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4536 -
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:1064
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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:4476
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.0MB
MD59002b549ae8e8c7dcc447065c93056c7
SHA167e0428017a232d12202e5c56301e9f9503681b4
SHA2562abb09df861a03e1b88d9074d319dd6a676c62e80a65c058e60f605af2d015ac
SHA51248487168d49c2108a8db699cc64404afe60374b0d55214d157276430f75d6ea944ed2657d6f808999421bfe7c104e27111746605aca0f6a4439049bc403364ca
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Filesize
1.5MB
MD51904177ab4f790941eb1478ba9dc2c08
SHA1e0c4ef7875060c979c1ed8a14df95cf0d28cb758
SHA256a7c62dbb02a6baa95e23b75ecc54a41cc58841190ba54d372a4dfdeab7736342
SHA51244ed9106ef57d5d219fa15e247c6b1ca5285e2a2c43a2b2fbd0da4b2392a7c0c2348f536777b5aa03053d297e9d9e1f7bd911b6637012ed3280a62baec07c6a9
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Filesize
809KB
MD5aaab90195d957eb934db134b35810d7d
SHA12d3451ebe091913c787a621f1fc6f12e16df08d1
SHA2567ce76d5b5f3e408f64cec6e17213a4460f7b1be33ba4a24afa9185a8364fa05d
SHA5121c47a8a01cbcbf8e46eaf33b550e9a3633f7e741478c09d1de3470e6c1f1ea8f219a30b10ee607d8fea4aabd96edfcf1aaab7b22dfea6139df46b19d3f937af0
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C:\Users\Admin\AppData\Local\Temp\is-60389.tmp\ca24618682a4932c1ccfebcc4239505c2a876317d0c8c1d558c7a69d4680bee4.tmp
Filesize677KB
MD55a1e3d46cb5a24f8e50b2a59d2ba1cf3
SHA1fe86894c4757c144449bc744649b7fb9e03346f1
SHA256d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d
SHA512a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63