Analysis
-
max time kernel
151s -
max time network
154s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
29-12-2020 07:35
Static task
static1
Behavioral task
behavioral1
Sample
dc7c1bf583939fef10df9f038b60fc24.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
dc7c1bf583939fef10df9f038b60fc24.exe
Resource
win10v20201028
General
-
Target
dc7c1bf583939fef10df9f038b60fc24.exe
-
Size
136KB
-
MD5
dc7c1bf583939fef10df9f038b60fc24
-
SHA1
137b8059a231dba8c654771b09db028a9e72f20c
-
SHA256
430ff3dba43b7a63c4a04a52bf6794044a86c0084843c9f115118e789982bed6
-
SHA512
8950ed2fd5f76e23158cb39e48dd2502bec75cb8297731406a10ff787cc8ed4811caae0b022921c929250bdefaf0534ec9836e106a346cce7391f6989c37d1c1
Malware Config
Extracted
smokeloader
2020
http://vtdilet.com/upload/
http://netvxi.com/upload/
http://tinnys.monster/upload/
Signatures
-
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Executes dropped EXE 2 IoCs
Processes:
ACA.exe6317.exepid process 296 ACA.exe 1972 6317.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\ACA.exe upx C:\Users\Admin\AppData\Local\Temp\ACA.exe upx C:\Users\Admin\AppData\Local\Temp\6317.exe upx -
Deletes itself 1 IoCs
Processes:
pid process 1356 -
Loads dropped DLL 6 IoCs
Processes:
dc7c1bf583939fef10df9f038b60fc24.exerundll32.exe6317.exepid process 1120 dc7c1bf583939fef10df9f038b60fc24.exe 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe 1616 rundll32.exe 1972 6317.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
dc7c1bf583939fef10df9f038b60fc24.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dc7c1bf583939fef10df9f038b60fc24.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dc7c1bf583939fef10df9f038b60fc24.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI dc7c1bf583939fef10df9f038b60fc24.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 380 timeout.exe -
Processes:
6317.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 6317.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 6317.exe -
Suspicious behavior: EnumeratesProcesses 772 IoCs
Processes:
dc7c1bf583939fef10df9f038b60fc24.exepid process 1120 dc7c1bf583939fef10df9f038b60fc24.exe 1120 dc7c1bf583939fef10df9f038b60fc24.exe 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 1356 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
dc7c1bf583939fef10df9f038b60fc24.exepid process 1120 dc7c1bf583939fef10df9f038b60fc24.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
pid process 1356 1356 1356 1356 -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
pid process 1356 1356 1356 1356 -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
ACA.execmd.execmd.execmd.execmd.exedescription pid process target process PID 1356 wrote to memory of 296 1356 ACA.exe PID 1356 wrote to memory of 296 1356 ACA.exe PID 1356 wrote to memory of 296 1356 ACA.exe PID 1356 wrote to memory of 296 1356 ACA.exe PID 296 wrote to memory of 428 296 ACA.exe cmd.exe PID 296 wrote to memory of 428 296 ACA.exe cmd.exe PID 296 wrote to memory of 428 296 ACA.exe cmd.exe PID 296 wrote to memory of 428 296 ACA.exe cmd.exe PID 296 wrote to memory of 736 296 ACA.exe cmd.exe PID 296 wrote to memory of 736 296 ACA.exe cmd.exe PID 296 wrote to memory of 736 296 ACA.exe cmd.exe PID 296 wrote to memory of 736 296 ACA.exe cmd.exe PID 736 wrote to memory of 380 736 cmd.exe timeout.exe PID 736 wrote to memory of 380 736 cmd.exe timeout.exe PID 736 wrote to memory of 380 736 cmd.exe timeout.exe PID 736 wrote to memory of 380 736 cmd.exe timeout.exe PID 428 wrote to memory of 1388 428 cmd.exe reg.exe PID 428 wrote to memory of 1388 428 cmd.exe reg.exe PID 428 wrote to memory of 1388 428 cmd.exe reg.exe PID 428 wrote to memory of 1388 428 cmd.exe reg.exe PID 296 wrote to memory of 908 296 ACA.exe cmd.exe PID 296 wrote to memory of 908 296 ACA.exe cmd.exe PID 296 wrote to memory of 908 296 ACA.exe cmd.exe PID 296 wrote to memory of 908 296 ACA.exe cmd.exe PID 296 wrote to memory of 1484 296 ACA.exe cmd.exe PID 296 wrote to memory of 1484 296 ACA.exe cmd.exe PID 296 wrote to memory of 1484 296 ACA.exe cmd.exe PID 296 wrote to memory of 1484 296 ACA.exe cmd.exe PID 908 wrote to memory of 1620 908 cmd.exe reg.exe PID 908 wrote to memory of 1620 908 cmd.exe reg.exe PID 908 wrote to memory of 1620 908 cmd.exe reg.exe PID 908 wrote to memory of 1620 908 cmd.exe reg.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1484 wrote to memory of 1616 1484 cmd.exe rundll32.exe PID 1356 wrote to memory of 1972 1356 6317.exe PID 1356 wrote to memory of 1972 1356 6317.exe PID 1356 wrote to memory of 1972 1356 6317.exe PID 1356 wrote to memory of 1972 1356 6317.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\dc7c1bf583939fef10df9f038b60fc24.exe"C:\Users\Admin\AppData\Local\Temp\dc7c1bf583939fef10df9f038b60fc24.exe"1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\ACA.exeC:\Users\Admin\AppData\Local\Temp\ACA.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C reg add "HKEY_CURRENT_USER\Software\NetHelper" /v path /t REG_SZ /d C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA /f2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exereg add "HKEY_CURRENT_USER\Software\NetHelper" /v path /t REG_SZ /d C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA /f3⤵
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C timeout /t 60 && SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.exe /F2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 603⤵
- Delays execution with timeout.exe
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C reg add "HKEY_CURRENT_USER\Software\NetHelper" /v library /t REG_SZ /d C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dll /f && EXIT 02⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\reg.exereg add "HKEY_CURRENT_USER\Software\NetHelper" /v library /t REG_SZ /d C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dll /f3⤵
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C rundll32.exe C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dll, UserModeExport2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dll, UserModeExport3⤵
- Loads dropped DLL
-
C:\Users\Admin\AppData\Local\Temp\6317.exeC:\Users\Admin\AppData\Local\Temp\6317.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system certificate store
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dllMD5
e835f27f6b6a2b0af42873ce2cc6cc07
SHA16f0d337dff455f08f29f20a75dd5f2de2d9ae19a
SHA25684762c5267b583916431e0a1170809b4f366d54fd0d48aea4f07256f10984f84
SHA512c6d079fc59aed72ec45008d48130210a450dc50722ebb3d577ffd7c47f2633a5e11fbea95773a26384bf8ca20da46013731530fbb5c13598b96012cf910ab984
-
C:\Users\Admin\AppData\Local\Temp\6317.exeMD5
3c362d50ee8dda5655d201c1892e6ac2
SHA1c61e83407acab961d7094b5f20c89501d4d94651
SHA256ce8f6248e942286fa329f634581603ceea496cd968df33c7241745b41faac6ae
SHA512274372ddf532c76fd23b2122d9ac108525289da3153d03dbb23373ca4b350eaa2f7e7241948e79e39ad146afc529a87048b702765e39a04691253c6bd5c360ae
-
C:\Users\Admin\AppData\Local\Temp\ACA.exeMD5
57a9c6d1f80eec2792d26d5903a9228b
SHA115455de7cb21d125651d9cf88b23af2953bfa96f
SHA256b33cc87f7974c98429bcf0396527bb81c97bb11eb143257e9e1196d685949120
SHA5120f1b1e42bba286c6b5d08571c97d770c287eff5249acef52809640a0e55a67711331e5adaaa6dae89ea16e817f29fd59da2bf0ff66864f53279cb834f112a280
-
C:\Users\Admin\AppData\Local\Temp\ACA.exeMD5
57a9c6d1f80eec2792d26d5903a9228b
SHA115455de7cb21d125651d9cf88b23af2953bfa96f
SHA256b33cc87f7974c98429bcf0396527bb81c97bb11eb143257e9e1196d685949120
SHA5120f1b1e42bba286c6b5d08571c97d770c287eff5249acef52809640a0e55a67711331e5adaaa6dae89ea16e817f29fd59da2bf0ff66864f53279cb834f112a280
-
\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dllMD5
e835f27f6b6a2b0af42873ce2cc6cc07
SHA16f0d337dff455f08f29f20a75dd5f2de2d9ae19a
SHA25684762c5267b583916431e0a1170809b4f366d54fd0d48aea4f07256f10984f84
SHA512c6d079fc59aed72ec45008d48130210a450dc50722ebb3d577ffd7c47f2633a5e11fbea95773a26384bf8ca20da46013731530fbb5c13598b96012cf910ab984
-
\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dllMD5
e835f27f6b6a2b0af42873ce2cc6cc07
SHA16f0d337dff455f08f29f20a75dd5f2de2d9ae19a
SHA25684762c5267b583916431e0a1170809b4f366d54fd0d48aea4f07256f10984f84
SHA512c6d079fc59aed72ec45008d48130210a450dc50722ebb3d577ffd7c47f2633a5e11fbea95773a26384bf8ca20da46013731530fbb5c13598b96012cf910ab984
-
\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dllMD5
e835f27f6b6a2b0af42873ce2cc6cc07
SHA16f0d337dff455f08f29f20a75dd5f2de2d9ae19a
SHA25684762c5267b583916431e0a1170809b4f366d54fd0d48aea4f07256f10984f84
SHA512c6d079fc59aed72ec45008d48130210a450dc50722ebb3d577ffd7c47f2633a5e11fbea95773a26384bf8ca20da46013731530fbb5c13598b96012cf910ab984
-
\ProgramData\NetHelper\Cache\PWAlIognkaGsKKSvuODA\nethelper.dllMD5
e835f27f6b6a2b0af42873ce2cc6cc07
SHA16f0d337dff455f08f29f20a75dd5f2de2d9ae19a
SHA25684762c5267b583916431e0a1170809b4f366d54fd0d48aea4f07256f10984f84
SHA512c6d079fc59aed72ec45008d48130210a450dc50722ebb3d577ffd7c47f2633a5e11fbea95773a26384bf8ca20da46013731530fbb5c13598b96012cf910ab984
-
\Users\Admin\AppData\LocalLow\sqlite3.dllMD5
f964811b68f9f1487c2b41e1aef576ce
SHA1b423959793f14b1416bc3b7051bed58a1034025f
SHA25683bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7
SHA512565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4
-
\Users\Admin\AppData\Local\Temp\CC4F.tmpMD5
d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
-
memory/296-9-0x0000000005270000-0x0000000005281000-memory.dmpFilesize
68KB
-
memory/296-6-0x0000000000000000-mapping.dmp
-
memory/296-8-0x0000000004E9A000-0x0000000004E9B000-memory.dmpFilesize
4KB
-
memory/380-13-0x0000000000000000-mapping.dmp
-
memory/408-15-0x000007FEF7AA0000-0x000007FEF7D1A000-memory.dmpFilesize
2.5MB
-
memory/428-10-0x0000000000000000-mapping.dmp
-
memory/736-12-0x0000000000000000-mapping.dmp
-
memory/908-16-0x0000000000000000-mapping.dmp
-
memory/1120-3-0x0000000004EA0000-0x0000000004EB1000-memory.dmpFilesize
68KB
-
memory/1120-2-0x000000000026A000-0x000000000026B000-memory.dmpFilesize
4KB
-
memory/1356-5-0x0000000002A60000-0x0000000002A76000-memory.dmpFilesize
88KB
-
memory/1388-14-0x0000000000000000-mapping.dmp
-
memory/1484-17-0x0000000000000000-mapping.dmp
-
memory/1616-19-0x0000000000000000-mapping.dmp
-
memory/1620-18-0x0000000000000000-mapping.dmp
-
memory/1972-25-0x0000000000000000-mapping.dmp
-
memory/1972-27-0x0000000004F0A000-0x0000000004F0B000-memory.dmpFilesize
4KB
-
memory/1972-28-0x0000000004FF0000-0x0000000005001000-memory.dmpFilesize
68KB