Analysis
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max time kernel
151s -
max time network
142s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
29-12-2020 07:46
Static task
static1
Behavioral task
behavioral1
Sample
ab2921ce4e4c87e9da8995a7410dad79.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
ab2921ce4e4c87e9da8995a7410dad79.exe
Resource
win10v20201028
General
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Target
ab2921ce4e4c87e9da8995a7410dad79.exe
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Size
137KB
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MD5
ab2921ce4e4c87e9da8995a7410dad79
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SHA1
6d193056924863acafe7f691f3a42f00e9ad56fb
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SHA256
534bbc160d7b57080707e7ac87dc9c0a9fcf8b13f86887401bf53fb2dbe6ccbd
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SHA512
406b81aaa62413c0969c94b77f606b46eefb2879b8d5514ea3d02238ae74a76cb861f8bcf2e825bfb18701837488be074f138d5207632bb875596bbab617f13f
Malware Config
Extracted
smokeloader
2020
http://vtdilet.com/upload/
http://netvxi.com/upload/
http://tinnys.monster/upload/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 1 IoCs
Processes:
F316.exepid process 1664 F316.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\F316.exe upx C:\Users\Admin\AppData\Local\Temp\F316.exe upx -
Deletes itself 1 IoCs
Processes:
pid process 1244 -
Loads dropped DLL 9 IoCs
Processes:
ab2921ce4e4c87e9da8995a7410dad79.exeF316.exepid process 1824 ab2921ce4e4c87e9da8995a7410dad79.exe 1664 F316.exe 1664 F316.exe 1664 F316.exe 1664 F316.exe 1664 F316.exe 1664 F316.exe 1664 F316.exe 1664 F316.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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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 \Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\nss3.dll js -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
ab2921ce4e4c87e9da8995a7410dad79.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ab2921ce4e4c87e9da8995a7410dad79.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ab2921ce4e4c87e9da8995a7410dad79.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ab2921ce4e4c87e9da8995a7410dad79.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1916 timeout.exe -
Processes:
F316.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 F316.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 F316.exe -
Suspicious behavior: EnumeratesProcesses 714 IoCs
Processes:
ab2921ce4e4c87e9da8995a7410dad79.exepid process 1824 ab2921ce4e4c87e9da8995a7410dad79.exe 1824 ab2921ce4e4c87e9da8995a7410dad79.exe 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 1244 -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
ab2921ce4e4c87e9da8995a7410dad79.exepid process 1824 ab2921ce4e4c87e9da8995a7410dad79.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
pid process 1244 1244 1244 1244 -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
pid process 1244 1244 1244 1244 -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
F316.execmd.exedescription pid process target process PID 1244 wrote to memory of 1664 1244 F316.exe PID 1244 wrote to memory of 1664 1244 F316.exe PID 1244 wrote to memory of 1664 1244 F316.exe PID 1244 wrote to memory of 1664 1244 F316.exe PID 1664 wrote to memory of 1476 1664 F316.exe cmd.exe PID 1664 wrote to memory of 1476 1664 F316.exe cmd.exe PID 1664 wrote to memory of 1476 1664 F316.exe cmd.exe PID 1664 wrote to memory of 1476 1664 F316.exe cmd.exe PID 1476 wrote to memory of 1916 1476 cmd.exe timeout.exe PID 1476 wrote to memory of 1916 1476 cmd.exe timeout.exe PID 1476 wrote to memory of 1916 1476 cmd.exe timeout.exe PID 1476 wrote to memory of 1916 1476 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ab2921ce4e4c87e9da8995a7410dad79.exe"C:\Users\Admin\AppData\Local\Temp\ab2921ce4e4c87e9da8995a7410dad79.exe"1⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\F316.exeC:\Users\Admin\AppData\Local\Temp\F316.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\F316.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\F316.exeMD5
3c362d50ee8dda5655d201c1892e6ac2
SHA1c61e83407acab961d7094b5f20c89501d4d94651
SHA256ce8f6248e942286fa329f634581603ceea496cd968df33c7241745b41faac6ae
SHA512274372ddf532c76fd23b2122d9ac108525289da3153d03dbb23373ca4b350eaa2f7e7241948e79e39ad146afc529a87048b702765e39a04691253c6bd5c360ae
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C:\Users\Admin\AppData\Local\Temp\F316.exeMD5
3c362d50ee8dda5655d201c1892e6ac2
SHA1c61e83407acab961d7094b5f20c89501d4d94651
SHA256ce8f6248e942286fa329f634581603ceea496cd968df33c7241745b41faac6ae
SHA512274372ddf532c76fd23b2122d9ac108525289da3153d03dbb23373ca4b350eaa2f7e7241948e79e39ad146afc529a87048b702765e39a04691253c6bd5c360ae
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\freebl3.dllMD5
60acd24430204ad2dc7f148b8cfe9bdc
SHA1989f377b9117d7cb21cbe92a4117f88f9c7693d9
SHA2569876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97
SHA512626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\freebl3.dllMD5
60acd24430204ad2dc7f148b8cfe9bdc
SHA1989f377b9117d7cb21cbe92a4117f88f9c7693d9
SHA2569876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97
SHA512626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\mozglue.dllMD5
eae9273f8cdcf9321c6c37c244773139
SHA18378e2a2f3635574c106eea8419b5eb00b8489b0
SHA256a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc
SHA51206e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\msvcp140.dllMD5
109f0f02fd37c84bfc7508d4227d7ed5
SHA1ef7420141bb15ac334d3964082361a460bfdb975
SHA256334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4
SHA51246eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\nss3.dllMD5
02cc7b8ee30056d5912de54f1bdfc219
SHA1a6923da95705fb81e368ae48f93d28522ef552fb
SHA2561989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5
SHA5120d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\softokn3.dllMD5
4e8df049f3459fa94ab6ad387f3561ac
SHA106ed392bc29ad9d5fc05ee254c2625fd65925114
SHA25625a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871
SHA5123dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6
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\Users\Admin\AppData\LocalLow\pF2qC1gG7yH8hI1o\vcruntime140.dllMD5
7587bf9cb4147022cd5681b015183046
SHA1f2106306a8f6f0da5afb7fc765cfa0757ad5a628
SHA256c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d
SHA5120b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f
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\Users\Admin\AppData\LocalLow\sqlite3.dllMD5
f964811b68f9f1487c2b41e1aef576ce
SHA1b423959793f14b1416bc3b7051bed58a1034025f
SHA25683bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7
SHA512565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4
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\Users\Admin\AppData\Local\Temp\CC4F.tmpMD5
d124f55b9393c976963407dff51ffa79
SHA12c7bbedd79791bfb866898c85b504186db610b5d
SHA256ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06
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memory/336-11-0x000007FEF7020000-0x000007FEF729A000-memory.dmpFilesize
2.5MB
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memory/1244-5-0x0000000002BB0000-0x0000000002BC6000-memory.dmpFilesize
88KB
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memory/1476-19-0x0000000000000000-mapping.dmp
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memory/1664-9-0x00000000051C0000-0x00000000051D1000-memory.dmpFilesize
68KB
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memory/1664-8-0x0000000004EDA000-0x0000000004EDB000-memory.dmpFilesize
4KB
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memory/1664-6-0x0000000000000000-mapping.dmp
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memory/1824-2-0x0000000004F5A000-0x0000000004F5B000-memory.dmpFilesize
4KB
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memory/1824-3-0x0000000005040000-0x0000000005051000-memory.dmpFilesize
68KB
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memory/1916-20-0x0000000000000000-mapping.dmp