asyncrat | AsyncClient[.]exe

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General

Target
AsyncClient.exe
Size 45KB
Sample260724-e5n45ssdpd
SHA256 f0f94d393446457fdceaa33bf35c5bcd5c077ca03467dd9418653b13464a04f5
MD5 bcd61a4ab74a6ab33d75f5f2b29ef248
SHA1 61ddaea296a34ae34e864d78c71e83c1dcbba92f
SHA512 e51b310b20880aa01b7ce80d023abd3034d52e87b161cce1ee74648e4abe286ae0ce656baa5a51386243ed84dcda333792f8f16ebf5ba8063183781a6c222a79
SSDEEP 768:su5mRT/Y76cw5WU97eAmo2q9COjPGagAWOzjbFgX3ilrUDyatJvPcDZBf+:su5mRT/A6z2JOTKTO3bCXSlwDFPsdBf+
TLSH
T15D233B003BE88227F2BE4FB4A8F26146467AF5676603D68E1CC451DB4613FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

rat default asyncrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

ssc888.top/vi-vn/:6606
ssc888.top/vi-vn/:7707
ssc888.top/vi-vn/:8808
ssc888.top/vi-vn/:443
ssc888.top/vi-vn/:80
ssc888.top/vi-vn/:8844
ssc888.top/vi-vn/:22
ssc888.top/vi-vn/:53
sh4.in/vi-vn/:6606
sh4.in/vi-vn/:7707
sh4.in/vi-vn/:8808
sh4.in/vi-vn/:443
sh4.in/vi-vn/:80
sh4.in/vi-vn/:8844
sh4.in/vi-vn/:22
sh4.in/vi-vn/:53
123bmvp.com/:6606
123bmvp.com/:7707
123bmvp.com/:8808
123bmvp.com/:443
123bmvp.com/:80
123bmvp.com/:8844
123bmvp.com/:22
123bmvp.com/:53
123bvn.club/vi-vn/:6606
123bvn.club/vi-vn/:7707
123bvn.club/vi-vn/:8808
123bvn.club/vi-vn/:443
123bvn.club/vi-vn/:80
123bvn.club/vi-vn/:8844
123bvn.club/vi-vn/:22
123bvn.club/vi-vn/:53
pricery.io/vi-vn/:6606
pricery.io/vi-vn/:7707
pricery.io/vi-vn/:8808
pricery.io/vi-vn/:443
pricery.io/vi-vn/:80
pricery.io/vi-vn/:8844
pricery.io/vi-vn/:22
pricery.io/vi-vn/:53
mu88.co.uk/vi-vn/:6606
mu88.co.uk/vi-vn/:7707
mu88.co.uk/vi-vn/:8808
mu88.co.uk/vi-vn/:443
mu88.co.uk/vi-vn/:80
mu88.co.uk/vi-vn/:8844
mu88.co.uk/vi-vn/:22
mu88.co.uk/vi-vn/:53
perfectservicecenter.in.net/:6606
perfectservicecenter.in.net/:7707
perfectservicecenter.in.net/:8808
perfectservicecenter.in.net/:443
perfectservicecenter.in.net/:80
perfectservicecenter.in.net/:8844
perfectservicecenter.in.net/:22
perfectservicecenter.in.net/:53
mu88s2.com/vi-vn/:6606
mu88s2.com/vi-vn/:7707
mu88s2.com/vi-vn/:8808
mu88s2.com/vi-vn/:443
mu88s2.com/vi-vn/:80
mu88s2.com/vi-vn/:8844
mu88s2.com/vi-vn/:22
mu88s2.com/vi-vn/:53

Mutex

Lle0QAdVOUQN

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
sample	family_asyncrat

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AsyncClient.exe

File Explorer

AsyncClient.exe

.exe 45KB

AsyncClient.exe

IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
SHA256 f0f94d393446457fdceaa33bf35c5bcd5c077ca03467dd9418653b13464a04f5
MD5 bcd61a4ab74a6ab33d75f5f2b29ef248
SHA1 61ddaea296a34ae34e864d78c71e83c1dcbba92f
SHA512 e51b310b20880aa01b7ce80d023abd3034d52e87b161cce1ee74648e4abe286ae0ce656baa5a51386243ed84dcda333792f8f16ebf5ba8063183781a6c222a79
SSDEEP 768:su5mRT/Y76cw5WU97eAmo2q9COjPGagAWOzjbFgX3ilrUDyatJvPcDZBf+:su5mRT/A6z2JOTKTO3bCXSlwDFPsdBf+
TLSH
T15D233B003BE88227F2BE4FB4A8F26146467AF5676603D68E1CC451DB4613FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Async RAT payload

rat
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

51358

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE

PDB paths

AsyncClient.exe

mscoree

dotnet