asyncrat | AsyncClient[.]exe

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General

Target
AsyncClient.exe
Size 45KB
Sample260730-xm4e8ayvcs
SHA256 c0f68daf299eb39232cce78b2525ecb6ca60f3cdd5ccb3cbd5cfcf15ac61ff90
MD5 20a675ec8c1739c160de96a3de158d6a
SHA1 0f3a1a36102af453ddc3dc839f7053ddbebd6e69
SHA512 ac7eea4228c4a66ef7179e1193b5749c4d3e438bf41662208c913736dfb9310158ec641d80775f624a7e52479ef9c3feee0cf1d4310b7037b5a58f3f37f2dfe5
SSDEEP 768:0uh2BTk0IJKhWUlreYmo2qY6OjPGagAWOzjbFgX3iki/aJUpefQqxufIcDZ5f+:0uh2BTk0Wu2mOTKTO3bCXSki/aJqefQm
TLSH
T1D9233B003BE98227F2BE5F789DF26145857AF6A32603D64E1CC451DB1613FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

rat default asyncrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

123bio.co/vi-vn/:6606
123bio.co/vi-vn/:7707
123bio.co/vi-vn/:8808
123bio.co/vi-vn/:443
123bio.co/vi-vn/:80
123bio.co/vi-vn/:8844
123bio.co/vi-vn/:22
123bio.co/vi-vn/:53
123br-123br.com/vi-vn/:6606
123br-123br.com/vi-vn/:7707
123br-123br.com/vi-vn/:8808
123br-123br.com/vi-vn/:443
123br-123br.com/vi-vn/:80
123br-123br.com/vi-vn/:8844
123br-123br.com/vi-vn/:22
123br-123br.com/vi-vn/:53
solo123b.com/vi-vn/:6606
solo123b.com/vi-vn/:7707
solo123b.com/vi-vn/:8808
solo123b.com/vi-vn/:443
solo123b.com/vi-vn/:80
solo123b.com/vi-vn/:8844
solo123b.com/vi-vn/:22
solo123b.com/vi-vn/:53
colorwiz.in/vi-vn/:6606
colorwiz.in/vi-vn/:7707
colorwiz.in/vi-vn/:8808
colorwiz.in/vi-vn/:443
colorwiz.in/vi-vn/:80
colorwiz.in/vi-vn/:8844
colorwiz.in/vi-vn/:22
colorwiz.in/vi-vn/:53
mtqs2.buzz/vi-vn/:6606
mtqs2.buzz/vi-vn/:7707
mtqs2.buzz/vi-vn/:8808
mtqs2.buzz/vi-vn/:443
mtqs2.buzz/vi-vn/:80
mtqs2.buzz/vi-vn/:8844
mtqs2.buzz/vi-vn/:22
mtqs2.buzz/vi-vn/:53
cmec.in/vi-vn/:6606
cmec.in/vi-vn/:7707
cmec.in/vi-vn/:8808
cmec.in/vi-vn/:443
cmec.in/vi-vn/:80
cmec.in/vi-vn/:8844
cmec.in/vi-vn/:22
cmec.in/vi-vn/:53
00jt.club/vi-vn/:6606
00jt.club/vi-vn/:7707
00jt.club/vi-vn/:8808
00jt.club/vi-vn/:443
00jt.club/vi-vn/:80
00jt.club/vi-vn/:8844
00jt.club/vi-vn/:22
00jt.club/vi-vn/:53
rajajackpot.jp.net/vi-vn/:6606
rajajackpot.jp.net/vi-vn/:7707
rajajackpot.jp.net/vi-vn/:8808
rajajackpot.jp.net/vi-vn/:443
rajajackpot.jp.net/vi-vn/:80
rajajackpot.jp.net/vi-vn/:8844
rajajackpot.jp.net/vi-vn/:22
rajajackpot.jp.net/vi-vn/:53
keaz.co/vn/:6606
keaz.co/vn/:7707
keaz.co/vn/:8808
keaz.co/vn/:443
keaz.co/vn/:80
keaz.co/vn/:8844
keaz.co/vn/:22
keaz.co/vn/:53

Mutex

4UWs9OPJ8vyg

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 c0f68daf299eb39232cce78b2525ecb6ca60f3cdd5ccb3cbd5cfcf15ac61ff90
MD5 20a675ec8c1739c160de96a3de158d6a
SHA1 0f3a1a36102af453ddc3dc839f7053ddbebd6e69
SHA512 ac7eea4228c4a66ef7179e1193b5749c4d3e438bf41662208c913736dfb9310158ec641d80775f624a7e52479ef9c3feee0cf1d4310b7037b5a58f3f37f2dfe5
SSDEEP 768:0uh2BTk0IJKhWUlreYmo2qY6OjPGagAWOzjbFgX3iki/aJUpefQqxufIcDZ5f+:0uh2BTk0Wu2mOTKTO3bCXSki/aJqefQm
TLSH
T1D9233B003BE98227F2BE5F789DF26145857AF6A32603D64E1CC451DB1613FC68A426FE
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

51390

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