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Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231025-en -
resource tags
arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system -
submitted
04/11/2023, 02:25
Static task
static1
Behavioral task
behavioral1
Sample
640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe
Resource
win10v2004-20231025-en
General
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Target
640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe
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Size
4.8MB
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MD5
70bcb644a296d93a0e922ea87b461306
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SHA1
87677964f0c03736844f05677de52e3ab53e2240
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SHA256
640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69
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SHA512
8a592faa06ddff66ebab20f8c5368a5dca0ebf75a4672dbb06adb9bcda25eb95809b4899967ac0e6850c38247eee56290a9c12d1360340121cc8715a37668af3
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SSDEEP
98304:6dhqCN2wunfeJx0lXzutWSb2cA6l5j5Z5Z1y/eOn4Od4chFFd57e:mhqO2lGf02qjej5fZsT4OOsd57e
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1188 is-42UFG.tmp 2404 BBuster.exe 2032 BBuster.exe -
Loads dropped DLL 1 IoCs
pid Process 1188 is-42UFG.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 34 IoCs
description ioc Process File created C:\Program Files (x86)\BBuster\is-QKQS3.tmp is-42UFG.tmp File opened for modification C:\Program Files (x86)\BBuster\unins000.dat is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-STS71.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-8QM66.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Online\is-AFQL2.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Help\is-NU3I0.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\is-H2LDJ.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-0K54H.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-4UDSR.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-P3M54.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-48K8N.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-UMOBQ.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Plugins\is-GOJVA.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-FDM2P.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-6EKAT.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Plugins\is-T25DV.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Plugins\is-APL07.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-5KK3S.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-B279O.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-HAT6D.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-2DEOE.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Plugins\is-KP1HV.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\unins000.dat is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-K7983.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-K572K.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-0L411.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Online\is-IP7FN.tmp is-42UFG.tmp File opened for modification C:\Program Files (x86)\BBuster\BBuster.exe is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-CT8QN.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-EB2QG.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-KA6ED.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-486L4.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-NGSVJ.tmp is-42UFG.tmp File created C:\Program Files (x86)\BBuster\Lang\is-1JMHK.tmp is-42UFG.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Runs net.exe
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Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2924 wrote to memory of 1188 2924 640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe 87 PID 2924 wrote to memory of 1188 2924 640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe 87 PID 2924 wrote to memory of 1188 2924 640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe 87 PID 1188 wrote to memory of 3740 1188 is-42UFG.tmp 92 PID 1188 wrote to memory of 3740 1188 is-42UFG.tmp 92 PID 1188 wrote to memory of 3740 1188 is-42UFG.tmp 92 PID 1188 wrote to memory of 2404 1188 is-42UFG.tmp 91 PID 1188 wrote to memory of 2404 1188 is-42UFG.tmp 91 PID 1188 wrote to memory of 2404 1188 is-42UFG.tmp 91 PID 3740 wrote to memory of 2908 3740 net.exe 94 PID 3740 wrote to memory of 2908 3740 net.exe 94 PID 3740 wrote to memory of 2908 3740 net.exe 94 PID 1188 wrote to memory of 2032 1188 is-42UFG.tmp 98 PID 1188 wrote to memory of 2032 1188 is-42UFG.tmp 98 PID 1188 wrote to memory of 2032 1188 is-42UFG.tmp 98
Processes
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C:\Users\Admin\AppData\Local\Temp\640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe"C:\Users\Admin\AppData\Local\Temp\640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2924 -
C:\Users\Admin\AppData\Local\Temp\is-9AUD0.tmp\is-42UFG.tmp"C:\Users\Admin\AppData\Local\Temp\is-9AUD0.tmp\is-42UFG.tmp" /SL4 $A0228 "C:\Users\Admin\AppData\Local\Temp\640c6fc0a1d5fcfc7b8485ea2eee124acb82e95ce879fe0301283abcbfb5ef69.exe" 4731609 793602⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1188 -
C:\Program Files (x86)\BBuster\BBuster.exe"C:\Program Files (x86)\BBuster\BBuster.exe" -i3⤵
- Executes dropped EXE
PID:2404
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 33⤵
- Suspicious use of WriteProcessMemory
PID:3740 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 34⤵PID:2908
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C:\Program Files (x86)\BBuster\BBuster.exe"C:\Program Files (x86)\BBuster\BBuster.exe" -s3⤵
- Executes dropped EXE
PID:2032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.7MB
MD56b34118b730d887ec9fb212547bccb37
SHA135fcc7a7f2d762b75f7c92f14c3c4a3d31c615d8
SHA2566e353f0de50fe5c836ded024b1778b916c5dd8765857fee806e5d1f12a8ddbe3
SHA5129707286318fcc6dd4695af76858b6dc3efcd993d398dfc92690e8d13552edf42cd48dad2cfe861d56679af8571120f27ba1a70d5db77bbd7458326f0d9f9cf6e
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Filesize
3.7MB
MD56b34118b730d887ec9fb212547bccb37
SHA135fcc7a7f2d762b75f7c92f14c3c4a3d31c615d8
SHA2566e353f0de50fe5c836ded024b1778b916c5dd8765857fee806e5d1f12a8ddbe3
SHA5129707286318fcc6dd4695af76858b6dc3efcd993d398dfc92690e8d13552edf42cd48dad2cfe861d56679af8571120f27ba1a70d5db77bbd7458326f0d9f9cf6e
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Filesize
3.7MB
MD56b34118b730d887ec9fb212547bccb37
SHA135fcc7a7f2d762b75f7c92f14c3c4a3d31c615d8
SHA2566e353f0de50fe5c836ded024b1778b916c5dd8765857fee806e5d1f12a8ddbe3
SHA5129707286318fcc6dd4695af76858b6dc3efcd993d398dfc92690e8d13552edf42cd48dad2cfe861d56679af8571120f27ba1a70d5db77bbd7458326f0d9f9cf6e
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
643KB
MD5a991510c12f20ccf8a5231a32a7958c3
SHA1122724d1a4fdea39af3aa427e4941158d7e91dfa
SHA2560c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198
SHA5128f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa
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Filesize
643KB
MD5a991510c12f20ccf8a5231a32a7958c3
SHA1122724d1a4fdea39af3aa427e4941158d7e91dfa
SHA2560c3ab280e156e9ff6a325267bc5d721f71dcb12490a53a03a033d932272f9198
SHA5128f387a6189f6fa51f84004706589ed1706dfd08dfc38c1f8ce3ce010f37efac085fd241396ab69bc25c86174a4637492163bf3cb26f88639551dc9fa0c52eafa