Analysis
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max time kernel
142s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20-09-2024 21:27
Behavioral task
behavioral1
Sample
htdhfrsfs.exe
Resource
win7-20240903-en
General
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Target
htdhfrsfs.exe
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Size
903KB
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MD5
942a8d7c0a5bdd9639ff9805365021a3
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SHA1
019ebb82c3208968d53b03cb940fb342c85b6a6c
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SHA256
a7416cfb861ac1151c17305ec1b43f033729f637a0c74a15b3d0a85f68e90807
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SHA512
5484158ba1b75cee0a4111b2e53c46c266546906ade4ed516eac3b0c53536f5fbc7a6b3849fe345a0ae60f6955c5da83716f2fdb1f59a9183e847f5e3713512d
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SSDEEP
12288:Z8shHAVBuQBBed37dG1lFlWcYT70pxnnaaoawMRVcTqSA+9rZNrI0AilFEvxHvB0:m3s4MROxnF9LqrZlI0AilFEvxHinSo
Malware Config
Extracted
orcus
23.84.85.170:3389
466139a685e046efa39e67d19f3bebeb
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autostart_method
Disable
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enable_keylogger
false
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install_path
%programfiles%\Orcus\Orcus.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcus main payload 1 IoCs
Processes:
resource yara_rule C:\Program Files\Orcus\Orcus.exe family_orcus -
Orcurs Rat Executable 2 IoCs
Processes:
resource yara_rule C:\Program Files\Orcus\Orcus.exe orcus behavioral1/memory/2076-35-0x0000000000320000-0x0000000000408000-memory.dmp orcus -
Executes dropped EXE 1 IoCs
Processes:
Orcus.exepid process 2076 Orcus.exe -
Drops file in Program Files directory 3 IoCs
Processes:
htdhfrsfs.exedescription ioc process File created C:\Program Files\Orcus\Orcus.exe htdhfrsfs.exe File opened for modification C:\Program Files\Orcus\Orcus.exe htdhfrsfs.exe File created C:\Program Files\Orcus\Orcus.exe.config htdhfrsfs.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Orcus.exedescription pid process Token: SeDebugPrivilege 2076 Orcus.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
Orcus.exepid process 2076 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
Orcus.exepid process 2076 Orcus.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
htdhfrsfs.execsc.exedescription pid process target process PID 1708 wrote to memory of 2348 1708 htdhfrsfs.exe csc.exe PID 1708 wrote to memory of 2348 1708 htdhfrsfs.exe csc.exe PID 1708 wrote to memory of 2348 1708 htdhfrsfs.exe csc.exe PID 2348 wrote to memory of 2504 2348 csc.exe cvtres.exe PID 2348 wrote to memory of 2504 2348 csc.exe cvtres.exe PID 2348 wrote to memory of 2504 2348 csc.exe cvtres.exe PID 1708 wrote to memory of 2076 1708 htdhfrsfs.exe Orcus.exe PID 1708 wrote to memory of 2076 1708 htdhfrsfs.exe Orcus.exe PID 1708 wrote to memory of 2076 1708 htdhfrsfs.exe Orcus.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\htdhfrsfs.exe"C:\Users\Admin\AppData\Local\Temp\htdhfrsfs.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1708 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\hifenumg.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:2348 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESE61C.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCE61B.tmp"3⤵PID:2504
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C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
903KB
MD5942a8d7c0a5bdd9639ff9805365021a3
SHA1019ebb82c3208968d53b03cb940fb342c85b6a6c
SHA256a7416cfb861ac1151c17305ec1b43f033729f637a0c74a15b3d0a85f68e90807
SHA5125484158ba1b75cee0a4111b2e53c46c266546906ade4ed516eac3b0c53536f5fbc7a6b3849fe345a0ae60f6955c5da83716f2fdb1f59a9183e847f5e3713512d
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
1KB
MD5b7aa674b63002eb1e36c798c964cd8db
SHA13b5ca47b0c6abb3cf96ea17caf198951f4be0de6
SHA256992f0376fcc8e47b8d2d87db2b77973aef2426d15755ae57426ce1d48d160ddc
SHA512b33254f3631fe10b5342b6b6f580b813b861dd6f5f44ae23dbb4c35c1fd5fe13883ed5f51ba837eb03eb1d4dd97afcaddd5c5a2a368fbd011561b41e00f5d3af
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Filesize
76KB
MD5b4c00b17db6877b63210a0164f2e69af
SHA1a452471d3909da9780074f3384d44f24095e63aa
SHA25621f1e72d31d58cde875e51d297eb31e3d659e4b02f8f005826b6be7c81f75d1e
SHA5120ef9bdd44dfccbd4ff5fbacf2fbca29671e663dc0a9a0e88972f8a167788ce23a3d8408b55f68ba26d7af74ec189aae6a2b832f44a6b0398b3c6b80369830409
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Filesize
676B
MD51dc2457a00b63e7f813a874252c22870
SHA1ffd710ec43588300c36a0e560aa96dcfda85d964
SHA25686e3141f9fe15e827757ad8c7b87089669a527c06346ff7e3e5f5b95620bf80e
SHA512b7d7cecbf42b5589e97e36be0e3cacd01b0b90dc2c40b8a0c3e3942e099952c553d86e7aacc8d9ce77474d4d7038831d487b23667a1007262e6cb22b7915dd99
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Filesize
208KB
MD56011503497b1b9250a05debf9690e52c
SHA1897aea61e9bffc82d7031f1b3da12fb83efc6d82
SHA25608f42b8d57bb61bc8f9628c8a80953b06ca4149d50108083fca6dc26bdd49434
SHA512604c33e82e8b5bb5c54389c2899c81e5482a06e69db08268173a5b4574327ee5de656d312011d07e50a2e398a4c9b0cd79029013f76e05e18cf67ce5a916ffd9
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Filesize
349B
MD5cf906a992219eec5144eb327cff48b64
SHA13f60ea20b481696a02126a9cca7b8121d84f553a
SHA2561d5f274dc66fcde163181b4a90ebcc66f3fd4fc11440261093c590c666666ac5
SHA51266412b854d270f43bdac144980b3ffd7bd2535c79e76429e4961a8f666f151db7ba108b3a4d3e769de8c584f71899a16db48e92717661a123d4e058f880defcf