Analysis
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max time kernel
94s -
max time network
22s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
17-01-2021 16:59
Static task
static1
Behavioral task
behavioral1
Sample
monthly financial statement.doc
Resource
win7v20201028
Behavioral task
behavioral2
Sample
monthly financial statement.doc
Resource
win10v20201028
General
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Target
monthly financial statement.doc
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Size
1.7MB
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MD5
0675edf4c9212b83a850c75398f648e8
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SHA1
d041f7d11a1da3a6d2db81cb84cce61c2c4e1281
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SHA256
5f94fc16fc1729c7817f052cd6aaf7d1638aba942ef380b35a0003ec1f146439
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SHA512
2cae441769260bdfca0a5a1ae6828e98281cfac3dc8c3e380e5390bd13a49251f1d224c00c0364cf649324364900fab9480edf946f221004c29fac9529d4b992
Malware Config
Signatures
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Blocklisted process makes network request 5 IoCs
Processes:
EQNEDT32.EXEflow pid process 6 2028 EQNEDT32.EXE 8 2028 EQNEDT32.EXE 10 2028 EQNEDT32.EXE 12 2028 EQNEDT32.EXE 14 2028 EQNEDT32.EXE -
Executes dropped EXE 1 IoCs
Processes:
69577.exepid process 1988 69577.exe -
Processes:
yara_rule upx \Users\Public\69577.exe upx C:\Users\Public\69577.exe upx \Users\Public\69577.exe upx C:\Users\Public\69577.exe upx -
Loads dropped DLL 6 IoCs
Processes:
EQNEDT32.EXE69577.exepid process 2028 EQNEDT32.EXE 2028 EQNEDT32.EXE 1988 69577.exe 1988 69577.exe 1988 69577.exe 1988 69577.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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JavaScript code in executable 1 IoCs
Processes:
resource yara_rule \ProgramData\nss3.dll js -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 18 ip-api.com -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Office loads VBA resources, possible macro or embedded object present
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
69577.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 69577.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 69577.exe -
Kills process with taskkill 1 IoCs
Processes:
taskkill.exepid process 956 taskkill.exe -
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Processes:
WINWORD.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid process 1684 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
69577.exepid process 1988 69577.exe 1988 69577.exe 1988 69577.exe 1988 69577.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
taskkill.exedescription pid process Token: SeDebugPrivilege 956 taskkill.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
WINWORD.EXEpid process 1684 WINWORD.EXE 1684 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 1684 WINWORD.EXE 1684 WINWORD.EXE -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
WINWORD.EXEEQNEDT32.EXE69577.execmd.exedescription pid process target process PID 1684 wrote to memory of 1896 1684 WINWORD.EXE splwow64.exe PID 1684 wrote to memory of 1896 1684 WINWORD.EXE splwow64.exe PID 1684 wrote to memory of 1896 1684 WINWORD.EXE splwow64.exe PID 1684 wrote to memory of 1896 1684 WINWORD.EXE splwow64.exe PID 2028 wrote to memory of 1988 2028 EQNEDT32.EXE 69577.exe PID 2028 wrote to memory of 1988 2028 EQNEDT32.EXE 69577.exe PID 2028 wrote to memory of 1988 2028 EQNEDT32.EXE 69577.exe PID 2028 wrote to memory of 1988 2028 EQNEDT32.EXE 69577.exe PID 1988 wrote to memory of 972 1988 69577.exe cmd.exe PID 1988 wrote to memory of 972 1988 69577.exe cmd.exe PID 1988 wrote to memory of 972 1988 69577.exe cmd.exe PID 1988 wrote to memory of 972 1988 69577.exe cmd.exe PID 972 wrote to memory of 956 972 cmd.exe taskkill.exe PID 972 wrote to memory of 956 972 cmd.exe taskkill.exe PID 972 wrote to memory of 956 972 cmd.exe taskkill.exe PID 972 wrote to memory of 956 972 cmd.exe taskkill.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\monthly financial statement.doc"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1684 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1896
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Public\69577.exe"C:\Users\Public\69577.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im 69577.exe /f & erase C:\Users\Public\69577.exe & exit3⤵
- Suspicious use of WriteProcessMemory
PID:972 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im 69577.exe /f4⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:956
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Public\69577.exeMD5
14c352be7111714a07714ab82bfd1b70
SHA13db41efadf56deafeff3ac541ea68c0046843e47
SHA2561b7bc78836c832c48b86f5c5406741018af99062461b8f4f2f9e55c8fcc076fc
SHA51245e15889a6d44891755aaa7de5abced9ea1cd5fdb91d2e284430c65647e136ca5a3b246b7a9ff14fbaf0a2d857e625fa359faeaeefed72e62b04c246214ab4ec
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C:\Users\Public\69577.exeMD5
14c352be7111714a07714ab82bfd1b70
SHA13db41efadf56deafeff3ac541ea68c0046843e47
SHA2561b7bc78836c832c48b86f5c5406741018af99062461b8f4f2f9e55c8fcc076fc
SHA51245e15889a6d44891755aaa7de5abced9ea1cd5fdb91d2e284430c65647e136ca5a3b246b7a9ff14fbaf0a2d857e625fa359faeaeefed72e62b04c246214ab4ec
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\ProgramData\mozglue.dllMD5
8f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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\ProgramData\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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\ProgramData\nss3.dllMD5
bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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\ProgramData\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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\Users\Public\69577.exeMD5
14c352be7111714a07714ab82bfd1b70
SHA13db41efadf56deafeff3ac541ea68c0046843e47
SHA2561b7bc78836c832c48b86f5c5406741018af99062461b8f4f2f9e55c8fcc076fc
SHA51245e15889a6d44891755aaa7de5abced9ea1cd5fdb91d2e284430c65647e136ca5a3b246b7a9ff14fbaf0a2d857e625fa359faeaeefed72e62b04c246214ab4ec
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\Users\Public\69577.exeMD5
14c352be7111714a07714ab82bfd1b70
SHA13db41efadf56deafeff3ac541ea68c0046843e47
SHA2561b7bc78836c832c48b86f5c5406741018af99062461b8f4f2f9e55c8fcc076fc
SHA51245e15889a6d44891755aaa7de5abced9ea1cd5fdb91d2e284430c65647e136ca5a3b246b7a9ff14fbaf0a2d857e625fa359faeaeefed72e62b04c246214ab4ec
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memory/956-22-0x0000000000000000-mapping.dmp
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memory/972-21-0x0000000000000000-mapping.dmp
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memory/1460-8-0x000007FEF68D0000-0x000007FEF6B4A000-memory.dmpFilesize
2.5MB
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memory/1684-3-0x0000000070841000-0x0000000070843000-memory.dmpFilesize
8KB
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memory/1684-2-0x0000000072DC1000-0x0000000072DC4000-memory.dmpFilesize
12KB
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memory/1684-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1896-5-0x0000000000000000-mapping.dmp
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memory/1896-6-0x000007FEFC2C1000-0x000007FEFC2C3000-memory.dmpFilesize
8KB
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memory/1988-16-0x0000000000400000-0x000000000048C000-memory.dmpFilesize
560KB
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memory/1988-15-0x00000000002C0000-0x0000000000349000-memory.dmpFilesize
548KB
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memory/1988-13-0x00000000047D0000-0x00000000047E1000-memory.dmpFilesize
68KB
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memory/1988-11-0x0000000000000000-mapping.dmp
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memory/2028-7-0x00000000756A1000-0x00000000756A3000-memory.dmpFilesize
8KB