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Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03/10/2022, 19:38
Static task
static1
Behavioral task
behavioral1
Sample
2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe
Resource
win7-20220812-en
General
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Target
2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe
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Size
630KB
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MD5
601ddfdee593a71b12a072a8f25156b0
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SHA1
57516d50bced81ebe2d34328a12f3a97dcb9f59e
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SHA256
2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3
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SHA512
5e47fbea71b3ca6950f706520954c1f4063c74661a28a8999e63582213e72a7b17a74ac01dc658fbb38c34f7b43be87393ca363836bd1b4ad1665e299d5b5d49
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SSDEEP
12288:zyyKdVnyNhXCV4EkP7AIfzNXZ0b5NrnkcAqIV0A1caRIqDwm1:zKvyNhXCV4E8BXAfrnkcAqU0A7M
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe 1740 DesktopLayer.exe -
resource yara_rule behavioral1/files/0x000c0000000054a8-55.dat upx behavioral1/files/0x000c0000000054a8-57.dat upx behavioral1/files/0x000c0000000054a8-60.dat upx behavioral1/files/0x00090000000139f2-61.dat upx behavioral1/memory/956-64-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/files/0x00090000000139f2-66.dat upx behavioral1/files/0x00090000000139f2-63.dat upx behavioral1/memory/1740-67-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
pid Process 1388 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxD0C.tmp 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe -
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371604071" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{9FBAD361-4371-11ED-8C74-D6AAFEFD221A} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1740 DesktopLayer.exe 1740 DesktopLayer.exe 1740 DesktopLayer.exe 1740 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1508 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1508 iexplore.exe 1508 iexplore.exe 1540 IEXPLORE.EXE 1540 IEXPLORE.EXE 1540 IEXPLORE.EXE 1540 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1388 wrote to memory of 956 1388 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe 28 PID 1388 wrote to memory of 956 1388 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe 28 PID 1388 wrote to memory of 956 1388 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe 28 PID 1388 wrote to memory of 956 1388 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe 28 PID 956 wrote to memory of 1740 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe 29 PID 956 wrote to memory of 1740 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe 29 PID 956 wrote to memory of 1740 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe 29 PID 956 wrote to memory of 1740 956 2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe 29 PID 1740 wrote to memory of 1508 1740 DesktopLayer.exe 30 PID 1740 wrote to memory of 1508 1740 DesktopLayer.exe 30 PID 1740 wrote to memory of 1508 1740 DesktopLayer.exe 30 PID 1740 wrote to memory of 1508 1740 DesktopLayer.exe 30 PID 1508 wrote to memory of 1540 1508 iexplore.exe 32 PID 1508 wrote to memory of 1540 1508 iexplore.exe 32 PID 1508 wrote to memory of 1540 1508 iexplore.exe 32 PID 1508 wrote to memory of 1540 1508 iexplore.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe"C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exeC:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:956 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1508 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1508 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
608B
MD561a766e443d6ba6d38aa61060548ff79
SHA1bb42a713aaea7015e73f01b5baea7af4513aa874
SHA256f5bbcaa6b3885527f04dcaf87f0d97a8081dfab657ee26365126611be8d98fc3
SHA51230b99857b397b2d26606610a77ab52e48c9b8a940d24f2f3461bd469913adee6c669f627efc851437d4287b65ba6b6c623a2baf79971db6d618c31c9679fd9ba
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Users\Admin\AppData\Local\Temp\2bfe76bf34ede6d37d52b0d6e0e46e62246f51d13305003a4d472ec4671e8df3Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a