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Analysis
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max time kernel
128s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06/11/2022, 21:15
Static task
static1
Behavioral task
behavioral1
Sample
4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe
Resource
win7-20220812-en
General
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Target
4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe
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Size
140KB
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MD5
0dcf020428b38763668021a73b46f9c0
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SHA1
3f11d79b9295537a52e24b030aefc4661d1975ef
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SHA256
4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1
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SHA512
150506064af1f42ea882a168f02f00a1c854e15904c844a3e83c4019c60fae460eddb06ae4f3ebad2fad1bbae4c3999945355d738f2448d154b3aa4132e9c858
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SSDEEP
3072:63biGPtpG8jWNHfXhNNGo56GYM7creqftJRDHQ:6bpG8jWNH/NGJ1yqfxQ
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe 1076 DesktopLayer.exe -
resource yara_rule behavioral1/files/0x00140000000054ab-54.dat upx behavioral1/files/0x00140000000054ab-56.dat upx behavioral1/files/0x00140000000054ab-58.dat upx behavioral1/files/0x0008000000014124-59.dat upx behavioral1/memory/1104-62-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/files/0x0008000000014124-61.dat upx behavioral1/files/0x0008000000014124-64.dat upx behavioral1/memory/1076-65-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
pid Process 1948 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\pxE73.tmp 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374564509" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{72F99751-5E5E-11ED-BD9E-FAB5137186BE} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1076 DesktopLayer.exe 1076 DesktopLayer.exe 1076 DesktopLayer.exe 1076 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1744 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1744 iexplore.exe 1744 iexplore.exe 1892 IEXPLORE.EXE 1892 IEXPLORE.EXE 1892 IEXPLORE.EXE 1892 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1104 1948 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe 28 PID 1948 wrote to memory of 1104 1948 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe 28 PID 1948 wrote to memory of 1104 1948 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe 28 PID 1948 wrote to memory of 1104 1948 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe 28 PID 1104 wrote to memory of 1076 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe 29 PID 1104 wrote to memory of 1076 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe 29 PID 1104 wrote to memory of 1076 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe 29 PID 1104 wrote to memory of 1076 1104 4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe 29 PID 1076 wrote to memory of 1744 1076 DesktopLayer.exe 30 PID 1076 wrote to memory of 1744 1076 DesktopLayer.exe 30 PID 1076 wrote to memory of 1744 1076 DesktopLayer.exe 30 PID 1076 wrote to memory of 1744 1076 DesktopLayer.exe 30 PID 1744 wrote to memory of 1892 1744 iexplore.exe 32 PID 1744 wrote to memory of 1892 1744 iexplore.exe 32 PID 1744 wrote to memory of 1892 1744 iexplore.exe 32 PID 1744 wrote to memory of 1892 1744 iexplore.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe"C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exeC:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1104 -
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:1076 -
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:1744 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1744 CREDAT:275457 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1892
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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\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
608B
MD5a58f015bab166610268a5eff1ff71376
SHA18c9446d29e27b2cfe89af00b0831d69e1a6d2d47
SHA256b789bdd0b7be5505809ee8ecf5770291c69d1df2ba1169093ed7513234d3f99d
SHA512139e8340755a0a7cdac9ba5a5af1d3effd827ee21f32ef3efa0476f43d7437cf22ee85601461e231ca231a486722f5cf7cd9bafcccf0dcce1690c2faebac7afe
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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\Users\Admin\AppData\Local\Temp\4cf06e0b338ce016a081c891109f0ae68dfc9539d6cc2108707ae5e2e3e59fb1Srv.exe
Filesize55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a