Analysis
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max time kernel
144s -
max time network
142s -
platform
windows10-1703_x64 -
resource
win10-20231020-en -
resource tags
arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system -
submitted
25-11-2023 19:57
Static task
static1
Behavioral task
behavioral1
Sample
ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe
Resource
win10-20231020-en
General
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Target
ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe
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Size
4.0MB
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MD5
b60f6bc12dba4be21e0d694f074d03ad
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SHA1
78eec345638e071965f96ea7c8d0649d7ca05f59
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SHA256
ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8
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SHA512
f186f8283ad41583eda559b459ecee59fcc87d67e914ff051cc2947e4d875f35d1d3a8f8872eb349e54ed6ebfb000a0f5f654914151db0308be7e5621ae51ab2
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SSDEEP
98304:7dL9xWLs1Esvx3VRy2XOwnqoQyVHXoblgL74+7e:pzwM5S2X9qM3oqLU+7e
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4856 is-KUSML.tmp 904 ZxingPDF.exe 4244 ZxingPDF.exe -
Loads dropped DLL 1 IoCs
pid Process 4856 is-KUSML.tmp -
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 151.80.38.159 Destination IP 217.23.6.51 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-9ALDJ.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-IJB4C.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-7B9KF.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-KIR6Q.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-M1EL2.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\is-7D128.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-B3K7H.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-8SBA9.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-5GTB5.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-KHINS.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-HJICV.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\unins000.dat is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-K29L5.tmp is-KUSML.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-0T5OC.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-N9526.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Help\is-OMUAO.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-0F39N.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Plugins\is-RDESN.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-IK6MP.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-CUOEP.tmp is-KUSML.tmp File opened for modification C:\Program Files (x86)\ZxingPDF\unins000.dat is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-B7R6I.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\is-IR5RR.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-VP32L.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Online\is-JT96F.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-52JIG.tmp is-KUSML.tmp File created C:\Program Files (x86)\ZxingPDF\Lang\is-30JPU.tmp is-KUSML.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 4928 wrote to memory of 4856 4928 ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe 71 PID 4928 wrote to memory of 4856 4928 ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe 71 PID 4928 wrote to memory of 4856 4928 ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe 71 PID 4856 wrote to memory of 1140 4856 is-KUSML.tmp 72 PID 4856 wrote to memory of 1140 4856 is-KUSML.tmp 72 PID 4856 wrote to memory of 1140 4856 is-KUSML.tmp 72 PID 4856 wrote to memory of 904 4856 is-KUSML.tmp 74 PID 4856 wrote to memory of 904 4856 is-KUSML.tmp 74 PID 4856 wrote to memory of 904 4856 is-KUSML.tmp 74 PID 4856 wrote to memory of 4244 4856 is-KUSML.tmp 75 PID 4856 wrote to memory of 4244 4856 is-KUSML.tmp 75 PID 4856 wrote to memory of 4244 4856 is-KUSML.tmp 75
Processes
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C:\Users\Admin\AppData\Local\Temp\ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe"C:\Users\Admin\AppData\Local\Temp\ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4928 -
C:\Users\Admin\AppData\Local\Temp\is-GQ9BM.tmp\is-KUSML.tmp"C:\Users\Admin\AppData\Local\Temp\is-GQ9BM.tmp\is-KUSML.tmp" /SL4 $80224 "C:\Users\Admin\AppData\Local\Temp\ff4cbef785b0f9201bb0bfbb7737950a976e46385bdaebcfa7bd0641c73d60f8.exe" 3876134 2421762⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4856 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:1140
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -i3⤵
- Executes dropped EXE
PID:904
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C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe"C:\Program Files (x86)\ZxingPDF\ZxingPDF.exe" -s3⤵
- Executes dropped EXE
PID:4244
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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
2.0MB
MD5330c3f73c995dbc18c9211269fc579ee
SHA132596c55cfc47c80a8c21dbb28538836cecec40d
SHA256c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d
SHA51213e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca
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Filesize
2.0MB
MD5330c3f73c995dbc18c9211269fc579ee
SHA132596c55cfc47c80a8c21dbb28538836cecec40d
SHA256c558e1a93895386068de911f2f92b9e7680b7e3b3649894ccae8f7b12d56849d
SHA51213e095500ad5a57637a7d53ca88deae73921388a0959298fbb8a127f08bec7b108d00405063e6138d1b572b19da9a16ee48564a6ed43880f2a83bdb5428756ca
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Filesize
643KB
MD5a991510c12f20ccf8a5231a32a7958c3
SHA1122724d1a4fdea39af3aa427e4941158d7e91dfa
SHA2560c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198
SHA5128f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa
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Filesize
643KB
MD5a991510c12f20ccf8a5231a32a7958c3
SHA1122724d1a4fdea39af3aa427e4941158d7e91dfa
SHA2560c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198
SHA5128f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63