asyncrat | c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876

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General

Target
c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876
Size 45KB
Sample260710-s41nfact2j
SHA256 c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876
MD5 a38d3040204cf87c1d62b3d530d850f0
SHA1 57d61f2d0890c114749fcebd16981e76e044b363
SHA512 d31771f86e9ccec7a9d19056e495d046fbda908b0a4d26303762195be870d7e9d9fdd2b6107111e4b167cde4ac65d52d44b352d79e37bd2d1e3eb91db7f18fac
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1IBz3QKx7PIUmjbhgX3ihVKDRBDZUx:cu6YepTPso2NV0UKbOXSQdUx
TLSH
T19B230A003BE8823BF2BE5F749DF26145867AE5632603D9492CC451DB5623FC6CA426FA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

rat default asyncrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

fimsec.com:80
fimsec.com:22
fimsec.com:8080
fimsec.com:8880
fimsec.com:2052
fimsec.com:2082
fimsec.com:2086
fimsec.com:2095
fimsec.com:443
fimsec.com:2053
fimsec.com:2083
fimsec.com:2087
fimsec.com:2096
fimsec.com:8443
www.fimsec.com:80
www.fimsec.com:22
www.fimsec.com:8080
www.fimsec.com:8880
www.fimsec.com:2052
www.fimsec.com:2082
www.fimsec.com:2086
www.fimsec.com:2095
www.fimsec.com:443
www.fimsec.com:2053
www.fimsec.com:2083
www.fimsec.com:2087
www.fimsec.com:2096
www.fimsec.com:8443
blaster.fimsec.com:80
blaster.fimsec.com:22
blaster.fimsec.com:8080
blaster.fimsec.com:8880
blaster.fimsec.com:2052
blaster.fimsec.com:2082
blaster.fimsec.com:2086
blaster.fimsec.com:2095
blaster.fimsec.com:443
blaster.fimsec.com:2053
blaster.fimsec.com:2083
blaster.fimsec.com:2087
blaster.fimsec.com:2096
blaster.fimsec.com:8443
locky.fimsec.com:80
locky.fimsec.com:22
locky.fimsec.com:8080
locky.fimsec.com:8880
locky.fimsec.com:2052
locky.fimsec.com:2082
locky.fimsec.com:2086
locky.fimsec.com:2095
locky.fimsec.com:443
locky.fimsec.com:2053
locky.fimsec.com:2083
locky.fimsec.com:2087
locky.fimsec.com:2096
locky.fimsec.com:8443
sasser.fimsec.com:80
sasser.fimsec.com:22
sasser.fimsec.com:8080
sasser.fimsec.com:8880
sasser.fimsec.com:2052
sasser.fimsec.com:2082
sasser.fimsec.com:2086
sasser.fimsec.com:2095
sasser.fimsec.com:443
sasser.fimsec.com:2053
sasser.fimsec.com:2083
sasser.fimsec.com:2087
sasser.fimsec.com:2096
sasser.fimsec.com:8443
stuxnet.fimsec.com:80
stuxnet.fimsec.com:22
stuxnet.fimsec.com:8080
stuxnet.fimsec.com:8880
stuxnet.fimsec.com:2052
stuxnet.fimsec.com:2082
stuxnet.fimsec.com:2086
stuxnet.fimsec.com:2095
stuxnet.fimsec.com:443
stuxnet.fimsec.com:2053
stuxnet.fimsec.com:2083
stuxnet.fimsec.com:2087
stuxnet.fimsec.com:2096
stuxnet.fimsec.com:8443

Mutex

o5zUa6Erx9od

Attributes

delay
0
install
true
install_file
zt3rstbc.exe
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
c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876

File Explorer

c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876

.exe 45KB

c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876

IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
SHA256 c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876
MD5 a38d3040204cf87c1d62b3d530d850f0
SHA1 57d61f2d0890c114749fcebd16981e76e044b363
SHA512 d31771f86e9ccec7a9d19056e495d046fbda908b0a4d26303762195be870d7e9d9fdd2b6107111e4b167cde4ac65d52d44b352d79e37bd2d1e3eb91db7f18fac
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1IBz3QKx7PIUmjbhgX3ihVKDRBDZUx:cu6YepTPso2NV0UKbOXSQdUx
TLSH
T19B230A003BE8823BF2BE5F749DF26145867AE5632603D9492CC451DB5623FC6CA426FA
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

51374

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

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

c793780ccf8afe863d72cf860e6f72796f05a9b3bb1811dfcc396bfea586a876

mscoree

dotnet