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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
10/07/2024, 23:43
Behavioral task
behavioral1
Sample
creative sound blaster.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
creative sound blaster.exe
Resource
win10v2004-20240709-en
General
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Target
creative sound blaster.exe
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Size
272KB
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MD5
216065e5d553615d2eb0b6cfe500955d
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SHA1
77e8aa8c51aff504fa2570b802a2cfcefc4cbeb9
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SHA256
8583a10e3990a1a9f00e443c1d39351c69899cff0a902c83e673d233a1467662
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SHA512
ec5d0edc7d73337445d235b377e8556dd0ac608eaf641e4e711cec28c69fbcd18b239a05843d07f1cadd87ae7b0cb2f69ada5e6de4433a4d7f1c4971eb1b6a7e
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SSDEEP
3072:cUTcxw+1uSPMV7b3SH1bnf8QYy9ckYMmlB/v6A80XH3e55EVu9cBY:cluSPMV7biVbEq5YM6VyA80XHbUe
Malware Config
Extracted
asyncrat
Venom RAT + HVNC + Stealer + Grabber v6.0.3
Default
147.185.221.21:6643
ilfsqckarqvfvoxlq
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delay
1
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install
true
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install_file
dllhost.dat.exe
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install_folder
%AppData%
Signatures
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Async RAT payload 1 IoCs
resource yara_rule behavioral1/files/0x0009000000016ccd-16.dat family_asyncrat -
Executes dropped EXE 1 IoCs
pid Process 2456 dllhost.dat.exe -
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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Delays execution with timeout.exe 1 IoCs
pid Process 2744 timeout.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2344 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 30 IoCs
pid Process 2356 creative sound blaster.exe 2356 creative sound blaster.exe 2356 creative sound blaster.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe 2456 dllhost.dat.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2356 creative sound blaster.exe Token: SeDebugPrivilege 2456 dllhost.dat.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2456 dllhost.dat.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2356 wrote to memory of 2072 2356 creative sound blaster.exe 30 PID 2356 wrote to memory of 2072 2356 creative sound blaster.exe 30 PID 2356 wrote to memory of 2072 2356 creative sound blaster.exe 30 PID 2356 wrote to memory of 1096 2356 creative sound blaster.exe 32 PID 2356 wrote to memory of 1096 2356 creative sound blaster.exe 32 PID 2356 wrote to memory of 1096 2356 creative sound blaster.exe 32 PID 2072 wrote to memory of 2344 2072 cmd.exe 34 PID 2072 wrote to memory of 2344 2072 cmd.exe 34 PID 2072 wrote to memory of 2344 2072 cmd.exe 34 PID 1096 wrote to memory of 2744 1096 cmd.exe 35 PID 1096 wrote to memory of 2744 1096 cmd.exe 35 PID 1096 wrote to memory of 2744 1096 cmd.exe 35 PID 1096 wrote to memory of 2456 1096 cmd.exe 36 PID 1096 wrote to memory of 2456 1096 cmd.exe 36 PID 1096 wrote to memory of 2456 1096 cmd.exe 36 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\creative sound blaster.exe"C:\Users\Admin\AppData\Local\Temp\creative sound blaster.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "dllhost.dat" /tr '"C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2072 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "dllhost.dat" /tr '"C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"'3⤵
- Scheduled Task/Job: Scheduled Task
PID:2344
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBDF2.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:2744
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C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"C:\Users\Admin\AppData\Roaming\dllhost.dat.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2456
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
155B
MD57e79a57b4a567453d629533f8af428b1
SHA13c4bed2232a83ab16836b8f17aa13bb53e69aa46
SHA256844c50da4b26f547584eba33235807b8620d3946e48a75049d007b527fa8390f
SHA5123c437dc16fa66caa11645f02c37a586132f9516fe86cf4d856e2da16b3e16369ab9c887ee01996f105b6ea4f1b9fff2603a9ddc8a44ab3c25a4c445acae19777
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Filesize
8B
MD5cf759e4c5f14fe3eec41b87ed756cea8
SHA1c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b
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Filesize
272KB
MD5216065e5d553615d2eb0b6cfe500955d
SHA177e8aa8c51aff504fa2570b802a2cfcefc4cbeb9
SHA2568583a10e3990a1a9f00e443c1d39351c69899cff0a902c83e673d233a1467662
SHA512ec5d0edc7d73337445d235b377e8556dd0ac608eaf641e4e711cec28c69fbcd18b239a05843d07f1cadd87ae7b0cb2f69ada5e6de4433a4d7f1c4971eb1b6a7e