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Analysis
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max time kernel
152s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08/05/2024, 21:14
Static task
static1
Behavioral task
behavioral1
Sample
575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe
Resource
win10v2004-20240226-en
General
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Target
575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe
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Size
4.0MB
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MD5
575b492dde6a22eb32d5bb2c146054a0
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SHA1
b508611429e8e63a87c6e47459ee72917a82a091
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SHA256
211c254f45f6fb09fe27227a46fe7f4cccfb3468362acc250fa2db0197d60886
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SHA512
140d8827182fa99d5545995003a09322e10da4a4f64616c231eb070fc982b0b64c99708492a2e25fa9cd172791d80e300aa2f986e3804728553badb633e694e6
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SSDEEP
98304:AdL9xWLs1Esvx3VRy2XOwnqoQyVHXoblgL74+7e:AzwM5S2X9qM3oqLU+7e
Malware Config
Extracted
socks5systemz
51.159.66.125
217.23.6.51
151.80.38.159
217.23.9.168
37.187.122.227
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rc4_key
heyfg645fdhwi
Signatures
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Detect Socks5Systemz Payload 1 IoCs
resource yara_rule behavioral2/memory/2084-99-0x00000000006F0000-0x000000000079A000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 3220 is-J3PRN.tmp 1392 ZxingPDF.exe 2084 ZxingPDF.exe -
Loads dropped DLL 1 IoCs
pid Process 3220 is-J3PRN.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 51.159.66.125 -
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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Drops file in Program Files directory 28 IoCs
description ioc Process File created C:\Program Files (x86)\ZxingPDF\Lang\is-DE007.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-77P0R.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-DFUP2.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-OMS10.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\is-GU7TJ.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-FJ1AU.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-BKU9T.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-27UAN.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-OBO3N.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-2R431.tmp is-J3PRN.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\unins000.dat is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-BG2C5.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-QNBM2.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-PUP6F.tmp is-J3PRN.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-M1BHT.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-AP1RP.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-ILMBI.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-18T1L.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\unins000.dat is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-F5723.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-D0OVF.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-E453T.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\is-F7H6L.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-L3HNG.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-7VD5N.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-5V07J.tmp is-J3PRN.tmp File created C:\Program Files (x86)\ZxingPDF\Help\is-H3OIF.tmp is-J3PRN.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4844 wrote to memory of 3220 4844 575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe 91 PID 4844 wrote to memory of 3220 4844 575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe 91 PID 4844 wrote to memory of 3220 4844 575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe 91 PID 3220 wrote to memory of 2348 3220 is-J3PRN.tmp 92 PID 3220 wrote to memory of 2348 3220 is-J3PRN.tmp 92 PID 3220 wrote to memory of 2348 3220 is-J3PRN.tmp 92 PID 3220 wrote to memory of 1392 3220 is-J3PRN.tmp 93 PID 3220 wrote to memory of 1392 3220 is-J3PRN.tmp 93 PID 3220 wrote to memory of 1392 3220 is-J3PRN.tmp 93 PID 3220 wrote to memory of 2084 3220 is-J3PRN.tmp 95 PID 3220 wrote to memory of 2084 3220 is-J3PRN.tmp 95 PID 3220 wrote to memory of 2084 3220 is-J3PRN.tmp 95
Processes
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C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe"C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Users\Admin\AppData\Local\Temp\is-N2H02.tmp\is-J3PRN.tmp"C:\Users\Admin\AppData\Local\Temp\is-N2H02.tmp\is-J3PRN.tmp" /SL4 $D004C "C:\Users\Admin\AppData\Local\Temp\575b492dde6a22eb32d5bb2c146054a0_NEIKI.exe" 3876134 2421762⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3220 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:2348
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -i3⤵
- Executes dropped EXE
PID:1392
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -s3⤵
- Executes dropped EXE
PID:2084
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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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:81⤵PID:1796
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.0MB
MD5330c3f73c995dbc18c9211269fc579ee
SHA132596c55cfc47c80a8c21dbb28538836cecec40d
SHA256c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d
SHA51213e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
643KB
MD5a991510c12f20ccf8a5231a32a7958c3
SHA1122724d1a4fdea39af3aa427e4941158d7e91dfa
SHA2560c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198
SHA5128f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa