Analysis
- max time kernel
300s - max time network
299s - platform
windows7_x64 - resource
win7-20231215-en - resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system - submitted
16/02/2024, 04:50
Static task
static1
Behavioral task
behavioral1
Sample
c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe
Resource
win10-20240214-en
General
- Target c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe
- Size 236KB
- Sample240216-ff8ypaae66
- SHA256 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9
- MD5 12feeee4bc19579083e686cf16dea6e3
- SHA1 156fef6e87be45f48055315cf134421655a3a727
- SHA512 b942d5c619c6fa490edd96e9aeabb008c630f12343de4b0f0b6924bea0d50770dadf3072c2c20b2012e75bf59d9a8c7025174793177df16b405605059b921346
- SSDEEP 3072:9nznk9/Gm+lK+SQCylz9uD4BfKVSHudaCzg25lXp0:Rg+lK+SR69uD4BfnHgn
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
smokeloader
-
pub3
Extracted
-
smokeloader
-
2022
-
http://sjyey.com/tmp/index.php
-
http://babonwo.ru/tmp/index.php
-
http://mth.com.ua/tmp/index.php
-
http://piratia.pw/tmp/index.php
-
http://go-piratia.ru/tmp/index.php
Extracted
-
amadey
-
4.14
-
http://anfesq.com
-
http://cbinr.com
-
http://rimakc.ru
-
install_dir
68fd3d7ade
-
install_file
Utsysc.exe
-
strings_key
27ec7fd6f50f63b8af0c1d3deefcc8fe
-
url_paths
/forum/index.php
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Deletes itself 1 IoCs
pid Process 1260 Process not Found - Executes dropped EXE 7 IoCs
pid Process 2592 290.exe 1924 Utsysc.exe 1528 Utsysc.exe 2448 Utsysc.exe 2440 Utsysc.exe 1988 Utsysc.exe 1888 Utsysc.exe - Loads dropped DLL 44 IoCs
pid Process 2592 290.exe 2592 290.exe 588 rundll32.exe 588 rundll32.exe 588 rundll32.exe 588 rundll32.exe 1624 rundll32.exe 1624 rundll32.exe 1624 rundll32.exe 1624 rundll32.exe 1088 WerFault.exe 1088 WerFault.exe 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe 2852 rundll32.exe 3040 rundll32.exe 3040 rundll32.exe 3040 rundll32.exe 3040 rundll32.exe 1572 WerFault.exe 1572 WerFault.exe 1472 rundll32.exe 1472 rundll32.exe 1472 rundll32.exe 1472 rundll32.exe 2076 rundll32.exe 2076 rundll32.exe 2076 rundll32.exe 2076 rundll32.exe 2980 WerFault.exe 2980 WerFault.exe 2148 rundll32.exe 2148 rundll32.exe 2148 rundll32.exe 2148 rundll32.exe 1960 rundll32.exe 1960 rundll32.exe 1960 rundll32.exe 1960 rundll32.exe 1468 rundll32.exe 1468 rundll32.exe 1468 rundll32.exe 1468 rundll32.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2652 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2036 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe 2036 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found 1260 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2036 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeShutdownPrivilege 1260 Process not Found Token: SeShutdownPrivilege 1260 Process not Found Token: SeShutdownPrivilege 1260 Process not Found - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1260 Process not Found 1260 Process not Found 2592 290.exe - Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1260 Process not Found 1260 Process not Found - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1260 wrote to memory of 2592 1260 Process not Found 30 PID 1260 wrote to memory of 2592 1260 Process not Found 30 PID 1260 wrote to memory of 2592 1260 Process not Found 30 PID 1260 wrote to memory of 2592 1260 Process not Found 30 PID 2592 wrote to memory of 1924 2592 290.exe 31 PID 2592 wrote to memory of 1924 2592 290.exe 31 PID 2592 wrote to memory of 1924 2592 290.exe 31 PID 2592 wrote to memory of 1924 2592 290.exe 31 PID 1924 wrote to memory of 2652 1924 Utsysc.exe 32 PID 1924 wrote to memory of 2652 1924 Utsysc.exe 32 PID 1924 wrote to memory of 2652 1924 Utsysc.exe 32 PID 1924 wrote to memory of 2652 1924 Utsysc.exe 32 PID 2188 wrote to memory of 1528 2188 taskeng.exe 36 PID 2188 wrote to memory of 1528 2188 taskeng.exe 36 PID 2188 wrote to memory of 1528 2188 taskeng.exe 36 PID 2188 wrote to memory of 1528 2188 taskeng.exe 36 PID 2188 wrote to memory of 2448 2188 taskeng.exe 38 PID 2188 wrote to memory of 2448 2188 taskeng.exe 38 PID 2188 wrote to memory of 2448 2188 taskeng.exe 38 PID 2188 wrote to memory of 2448 2188 taskeng.exe 38 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 1924 wrote to memory of 588 1924 Utsysc.exe 39 PID 588 wrote to memory of 1624 588 rundll32.exe 40 PID 588 wrote to memory of 1624 588 rundll32.exe 40 PID 588 wrote to memory of 1624 588 rundll32.exe 40 PID 588 wrote to memory of 1624 588 rundll32.exe 40 PID 1624 wrote to memory of 1088 1624 rundll32.exe 41 PID 1624 wrote to memory of 1088 1624 rundll32.exe 41 PID 1624 wrote to memory of 1088 1624 rundll32.exe 41 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 1924 wrote to memory of 2852 1924 Utsysc.exe 42 PID 2852 wrote to memory of 3040 2852 rundll32.exe 43 PID 2852 wrote to memory of 3040 2852 rundll32.exe 43 PID 2852 wrote to memory of 3040 2852 rundll32.exe 43 PID 2852 wrote to memory of 3040 2852 rundll32.exe 43 PID 3040 wrote to memory of 1572 3040 rundll32.exe 44 PID 3040 wrote to memory of 1572 3040 rundll32.exe 44 PID 3040 wrote to memory of 1572 3040 rundll32.exe 44 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1924 wrote to memory of 1472 1924 Utsysc.exe 45 PID 1472 wrote to memory of 2076 1472 rundll32.exe 46 PID 1472 wrote to memory of 2076 1472 rundll32.exe 46 PID 1472 wrote to memory of 2076 1472 rundll32.exe 46 PID 1472 wrote to memory of 2076 1472 rundll32.exe 46 PID 2076 wrote to memory of 2980 2076 rundll32.exe 47 PID 2076 wrote to memory of 2980 2076 rundll32.exe 47 PID 2076 wrote to memory of 2980 2076 rundll32.exe 47 PID 1924 wrote to memory of 2148 1924 Utsysc.exe 48 PID 1924 wrote to memory of 2148 1924 Utsysc.exe 48
Processes
-
C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe"C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2036
-
C:\Users\Admin\AppData\Local\Temp\290.exeC:\Users\Admin\AppData\Local\Temp\290.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2592 -
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe" /F3⤵
- Creates scheduled task(s)
PID:2652
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:588 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1624 -s 3125⤵
- Loads dropped DLL
PID:1088
-
-
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3040 -s 3125⤵
- Loads dropped DLL
PID:1572
-
-
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Windows\system32\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2076 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2076 -s 3125⤵
- Loads dropped DLL
PID:2980
-
-
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main3⤵
- Loads dropped DLL
PID:2148
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main3⤵
- Loads dropped DLL
PID:1960
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main3⤵
- Loads dropped DLL
PID:1468
-
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {BF9AAB47-0F03-415F-B456-373177883B4D} S-1-5-21-452311807-3713411997-1028535425-1000:OZEMQECW\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2188 -
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe2⤵
- Executes dropped EXE
PID:1528
-
-
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe2⤵
- Executes dropped EXE
PID:2448
-
-
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe2⤵
- Executes dropped EXE
PID:2440
-
-
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe2⤵
- Executes dropped EXE
PID:1988
-
-
C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exeC:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe2⤵
- Executes dropped EXE
PID:1888
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\290.exe
- Size 384KB
- SHA256 6f861ffc77ac6529a50211ae09d7bbdf27b97b73e17f9c4cdb397e39dc85a767
- MD5 e1dc6f36bc9f047f33b58c8c0fc2da89
- SHA1 cf6dfe8eaa32971eb53f02d0dc7c8ac299968880
- SHA512 6387d154ca10f44aa3abb8ef9b653c99b7fa583d152ef51b5091fccce085c6459ecc799f0491e8e3fe197f8bcd30af2d6c8fae3973311b05930fd444be962f92
- SSDEEP 6144:HPoeT+pdJibJkMBxUu46IHUwwkSARdV+pB0zh59M7B3TxWd4kfPHiJf:HPoeiHgacUKI0zvYD+pB0SKd/
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\523118073713
- Size 68KB
- SHA256 6388a827c6dbc16afad277524b994d63b8d33bbfc4ba86f01b07e590fcf02434
- MD5 617f54258f33d26fa039bcc5c02d688d
- SHA1 80ec48d75fb4686f028cab550a8d5d1e92c207d8
- SHA512 191d6bf2930e1a32a8139b85b688d626bb7bea19a82438538c0794b481d779516eb8a996e029411e70dca7d45aadc405a73a5360cf7fe747abc031078129116a
- SSDEEP 1536:sm4h3qKY7lzs5/2BiXtWz8CFvILZoeHeMLUJ0uRjUnfxhdsiy:n4dY7lzywt8WI9drAJzRjUnfxhCiy
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll
- Size 102KB
- SHA256 97e342fb4dbfe474ab2674682a816931bb9f56814bf13b20ff11ac1939775125
- MD5 4194e9b8b694b1e9b672c36f0d868e32
- SHA1 252f27fe313c7bf8e9f36aef0c7b676383872efb
- SHA512 f956acdec4c0255030f784d27210d59e30c3377e0a5abec915818bde8545afc3ef04a06395a2bfa5946f86cdf1088c9089bfc5064d9fd71b8137eae14f64e5c7
- SSDEEP 3072:SbEDxEOC3+EX4W2sosmLWuQRAwQrT7xUCYNS60Z:iM7HQ+sCWuQRYoNS60Z
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll
- Size 1.1MB
- SHA256 83ef6d2414a5c0c9cb6cfe502cb40cdda5c425ee7408a4075e32891f4599d938
- MD5 f01f5bc76b9596e0cfeab8a272cba3a5
- SHA1 19cab1291e4e518ae636f2fb3d41567e4e6e4722
- SHA512 ccfa16f0bbcdb909446fc4d47c1732e0b1baa759d78866fcce9ac7c5c12f1299e74df03b23881f3e37627b358bc6ddd2941c9110e030f6d68dd79f67c9e39f63
- SSDEEP 24576:Pc6CX/YqLAS81Un+J35XBMpZ9+Jo73Jw/tDMX/td:rqLAS81UnI5XQZ92ogO
- MD5 SHA1 SHA512 SSDEEP