Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
23/01/2024, 03:21
Static task
static1
Behavioral task
behavioral1
Sample
086f33ebfbcabeb3bf3a552a30a46e0b.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
086f33ebfbcabeb3bf3a552a30a46e0b.exe
Resource
win10v2004-20231215-en
General
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Target
086f33ebfbcabeb3bf3a552a30a46e0b.exe
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Size
4.0MB
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MD5
086f33ebfbcabeb3bf3a552a30a46e0b
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SHA1
c1acbae529d38d1b8d4c0c2f45fac45b69323ab1
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SHA256
3552198657f5727845f6a083d3292cb40669f2dfe359475621c4f7457cc0c619
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SHA512
99cd7d48c664c01c11f456ef8f963383adec1d6574e57970540c2b5bc96445751e3e274d7a935a95d696b003c2c94b6c483eada78782c2d4518eb01326bcc988
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SSDEEP
98304:ndL9xWLs1Esvx3VRy2XOwnqoQyVHXoblgL74+7e:dzwM5S2X9qM3oqLU+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 3 IoCs
resource yara_rule behavioral2/memory/4064-100-0x0000000000870000-0x000000000091A000-memory.dmp family_socks5systemz behavioral2/memory/4064-99-0x0000000000870000-0x000000000091A000-memory.dmp family_socks5systemz behavioral2/memory/4064-109-0x0000000000870000-0x000000000091A000-memory.dmp family_socks5systemz -
Socks5Systemz
Socks5Systemz is a botnet written in C++.
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Executes dropped EXE 3 IoCs
pid Process 972 is-NPPF5.tmp 5032 ZxingPDF.exe 4064 ZxingPDF.exe -
Loads dropped DLL 1 IoCs
pid Process 972 is-NPPF5.tmp -
Unexpected DNS network traffic destination 2 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 Destination IP 217.23.6.51 -
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\Plugins\is-IROK6.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-2UUKK.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-JJG2A.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\is-41KSO.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-GQG75.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-U93G6.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\is-847JE.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-KDQV2.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-RV760.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-32J2B.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-TRUGJ.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\unins000.dat is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-TPU3M.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-VKNLT.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-427KQ.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-71Q46.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-O0TB7.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-QF664.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-A4UIH.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-D9A9T.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-LJMPG.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-H11S0.tmp is-NPPF5.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-1KECM.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-FPFV0.tmp is-NPPF5.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\unins000.dat is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-CFIED.tmp is-NPPF5.tmp File created C:\Program Files (x86)\ZxingPDF\Help\is-BS3A7.tmp is-NPPF5.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 3484 wrote to memory of 972 3484 086f33ebfbcabeb3bf3a552a30a46e0b.exe 87 PID 3484 wrote to memory of 972 3484 086f33ebfbcabeb3bf3a552a30a46e0b.exe 87 PID 3484 wrote to memory of 972 3484 086f33ebfbcabeb3bf3a552a30a46e0b.exe 87 PID 972 wrote to memory of 2804 972 is-NPPF5.tmp 89 PID 972 wrote to memory of 2804 972 is-NPPF5.tmp 89 PID 972 wrote to memory of 2804 972 is-NPPF5.tmp 89 PID 972 wrote to memory of 5032 972 is-NPPF5.tmp 91 PID 972 wrote to memory of 5032 972 is-NPPF5.tmp 91 PID 972 wrote to memory of 5032 972 is-NPPF5.tmp 91 PID 972 wrote to memory of 4064 972 is-NPPF5.tmp 92 PID 972 wrote to memory of 4064 972 is-NPPF5.tmp 92 PID 972 wrote to memory of 4064 972 is-NPPF5.tmp 92
Processes
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C:\Users\Admin\AppData\Local\Temp\086f33ebfbcabeb3bf3a552a30a46e0b.exe"C:\Users\Admin\AppData\Local\Temp\086f33ebfbcabeb3bf3a552a30a46e0b.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3484 -
C:\Users\Admin\AppData\Local\Temp\is-TJVIR.tmp\is-NPPF5.tmp"C:\Users\Admin\AppData\Local\Temp\is-TJVIR.tmp\is-NPPF5.tmp" /SL4 $301EC "C:\Users\Admin\AppData\Local\Temp\086f33ebfbcabeb3bf3a552a30a46e0b.exe" 3876134 2421762⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:2804
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -i3⤵
- Executes dropped EXE
PID:5032
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -s3⤵
- Executes dropped EXE
PID:4064
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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