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Analysis
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max time kernel
120s -
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
06/11/2022, 20:57
Static task
static1
Behavioral task
behavioral1
Sample
8cf06a80ee7dc311e0d15550213077e592e6814a216c4e6c31f1730994e82fb2.dll
Resource
win7-20220812-en
General
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Target
8cf06a80ee7dc311e0d15550213077e592e6814a216c4e6c31f1730994e82fb2.dll
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Size
592KB
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MD5
09772a214cff5552ac77bfe09aba7ca0
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SHA1
e1fe1da8195ba8439332aa63c946db44b7af5fbe
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SHA256
8cf06a80ee7dc311e0d15550213077e592e6814a216c4e6c31f1730994e82fb2
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SHA512
206fbdb61cea9b3798af445845df232786f85b7227cb506f8b0993e15cee3e0893c508460c2308d5820af24bba357fea796f888f43ba38803a529b31945921c0
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SSDEEP
12288:+lMuhzOjZUh09++3C8ke0ibIpY6fsUnAakk8VRCZjo6974sjq:+lMuhzOjQQ+G1f0i16fsw78mP974
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 1672 rundll32Srv.exe 1616 DesktopLayer.exe -
resource yara_rule behavioral1/files/0x00140000000054ab-56.dat upx behavioral1/files/0x00140000000054ab-58.dat upx behavioral1/files/0x00140000000054ab-60.dat upx behavioral1/files/0x000a00000001234c-62.dat upx behavioral1/memory/1672-64-0x0000000000400000-0x000000000042E000-memory.dmp upx behavioral1/files/0x000a00000001234c-65.dat upx behavioral1/files/0x000a00000001234c-67.dat upx behavioral1/memory/1616-68-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Loads dropped DLL 2 IoCs
pid Process 1008 rundll32.exe 1672 rundll32Srv.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxF873.tmp rundll32Srv.exe File created C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe File opened for modification C:\Program Files (x86)\Microsoft\DesktopLayer.exe rundll32Srv.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1248 1008 WerFault.exe 28 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive 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 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\BrowserEmulation\LowMic 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\LowRegistry\DOMStorage 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 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\Main 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 Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374563136" 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\WebBrowser iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{37EAE811-5E5B-11ED-8D6F-660C31E8D015} = "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\Zoom iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" 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\Recovery\PendingRecovery 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\Main 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\IETld\LowMic 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\InternetRegistry iexplore.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1616 DesktopLayer.exe 1616 DesktopLayer.exe 1616 DesktopLayer.exe 1616 DesktopLayer.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1396 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 1396 iexplore.exe 1396 iexplore.exe 1116 IEXPLORE.EXE 1116 IEXPLORE.EXE 1116 IEXPLORE.EXE 1116 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 27 IoCs
description pid Process procid_target PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1076 wrote to memory of 1008 1076 rundll32.exe 28 PID 1008 wrote to memory of 1672 1008 rundll32.exe 29 PID 1008 wrote to memory of 1672 1008 rundll32.exe 29 PID 1008 wrote to memory of 1672 1008 rundll32.exe 29 PID 1008 wrote to memory of 1672 1008 rundll32.exe 29 PID 1008 wrote to memory of 1248 1008 rundll32.exe 30 PID 1008 wrote to memory of 1248 1008 rundll32.exe 30 PID 1008 wrote to memory of 1248 1008 rundll32.exe 30 PID 1008 wrote to memory of 1248 1008 rundll32.exe 30 PID 1672 wrote to memory of 1616 1672 rundll32Srv.exe 31 PID 1672 wrote to memory of 1616 1672 rundll32Srv.exe 31 PID 1672 wrote to memory of 1616 1672 rundll32Srv.exe 31 PID 1672 wrote to memory of 1616 1672 rundll32Srv.exe 31 PID 1616 wrote to memory of 1396 1616 DesktopLayer.exe 32 PID 1616 wrote to memory of 1396 1616 DesktopLayer.exe 32 PID 1616 wrote to memory of 1396 1616 DesktopLayer.exe 32 PID 1616 wrote to memory of 1396 1616 DesktopLayer.exe 32 PID 1396 wrote to memory of 1116 1396 iexplore.exe 34 PID 1396 wrote to memory of 1116 1396 iexplore.exe 34 PID 1396 wrote to memory of 1116 1396 iexplore.exe 34 PID 1396 wrote to memory of 1116 1396 iexplore.exe 34
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8cf06a80ee7dc311e0d15550213077e592e6814a216c4e6c31f1730994e82fb2.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8cf06a80ee7dc311e0d15550213077e592e6814a216c4e6c31f1730994e82fb2.dll,#12⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1008 -
C:\Windows\SysWOW64\rundll32Srv.exeC:\Windows\SysWOW64\rundll32Srv.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1672 -
C:\Program Files (x86)\Microsoft\DesktopLayer.exe"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1616 -
C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"5⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1396 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1396 CREDAT:275457 /prefetch:26⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1008 -s 2283⤵
- Program crash
PID:1248
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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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Filesize
603B
MD5e4d77e89091cf79cade84544455004ed
SHA116dd2228177083361550a235f22be64b143d409b
SHA256c68f9fa94c7d96a2d511d9e8a016917a0b24a236a3198000894a26daa43e1889
SHA5122bcef098863326ba00476231e275dd61abbc65d9d4035a9917f406c2cbda0abdf240015e48f3c283a167e94356569154672845f9a90be5d2f02ffe73e729fbf8
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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Filesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a