File name:

f559c085934e6e7d98e6d520684196eb

Full analysis: https://app.any.run/tasks/739fedc3-c1a1-4692-83e7-4d5e464e4742
Verdict: Malicious activity
Threats:

AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions.

Analysis date: December 05, 2022, 17:46:14
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
asyncrat
trojan
rat
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

F559C085934E6E7D98E6D520684196EB

SHA1:

3A829E2FAEAA5A48556770CC159A4E291A91A9C3

SHA256:

198886528A13C0F7F03536BAC4A5C449D3B21131887EFA7595C9E9A56A2CFC0E

SSDEEP:

768:SubrdT5UohzWUfpdBmo2qV6KjGKG6PIyzjbFgX3iUqaPkMapBDZHx:SubrdT5Pf2FKYDy3bCXSUqQE3dHx

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • ASYNCRAT was detected

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
    • ASYNCRAT detected by memory dumps

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
  • SUSPICIOUS

    • Reads the Internet Settings

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
    • Reads settings of System Certificates

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
    • Connects to unusual port

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
  • INFO

    • Reads the computer name

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
    • Checks supported languages

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
    • Reads Environment values

      • f559c085934e6e7d98e6d520684196eb.exe (PID: 2708)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

AsyncRat

(PID) Process(2708) f559c085934e6e7d98e6d520684196eb.exe
Install_Folder%AppData%
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
Aes_Key47ed71be3a9819c172ab5ccb3346638aa5294a6cbb2e11bae2a1a024734c203a
BotnetDefault
bdosfalse
PasteBinnull
AntiVMfalse
Server_SignaturePPqD1aMRY4uDekbEIim5F4vOk6hhS/ouvkwlzP3QY26zuSuR5xkW2W4PZIhyiMPNgg+SjKSEoFNn+m1Ld6d+S4zYgBvQY7qyiDSqt1GnwjI8sNMNdCmEVYpjDi9xOGd7AOiJRRYcmyXWRfJI2L1oCNi/Fa2QpfWHni9P8XaRtWQ7yzAGmWrGPCq/jasY9d7HE3AvOCGtOvcrOux/FAdCorgNqc/SkrSoxNxgDER+ekI987ocNKECcMwn/aPrARRk+cDiFJYbkvIeJlH8TFmJAY4QTvFHdDpbqGlwMh6uOw9G...
CertificateMIIE5jCCAs6gAwIBAgIQAPI53jb4ULzAubdYCVf+VTANBgkqhkiG9w0BAQ0FADAUMRIwEAYDVQQDDAlib29tc3Rpa3MwIBcNMjIxMTIyMDQyOTAyWhgPOTk5OTEyMzEyMzU5NTlaMBQxEjAQBgNVBAMMCWJvb21zdGlrczCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAPil+3ZAmbLp2e5iWmi4Jc8TSaDSVJDKQ9qqtqHn1xIqLOpAi02Z82GD9AEha8DoRlgpR5EPZ+mB720T+CTgn7UNlQhs...
MutexAsyncMutex_6SI8OkPnk
Autorunfalse
Version0.5.7B
Ports (6)6606
7707
8808
51115
26993
19624
C2 (5)127.0.0.1
185.246.220.26
5.tcp.ngrok.io
disownnet.duckdns.org
7.tcp.eu.ngrok.io
No Malware configuration.

TRiD

.exe | Generic CIL Executable (.NET, Mono, etc.) (56.7)
.exe | Win64 Executable (generic) (21.3)
.scr | Windows screen saver (10.1)
.dll | Win32 Dynamic Link Library (generic) (5)
.exe | Win32 Executable (generic) (3.4)

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 2020-May-10 05:24:51
Comments:
CompanyName:
FileDescription:
FileVersion: 1.0.0.0
InternalName: Stub.exe
LegalCopyright:
LegalTrademarks:
OriginalFilename: Stub.exe
ProductName:
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

DOS Header

e_magic: MZ
e_cblp: 144
e_cp: 3
e_crlc: 0
e_cparhdr: 4
e_minalloc: 0
e_maxalloc: 65535
e_ss: 0
e_sp: 184
e_csum: 0
e_ip: 0
e_cs: 0
e_ovno: 0
e_oemid: 0
e_oeminfo: 0
e_lfanew: 128

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
NumberofSections: 3
TimeDateStamp: 2020-May-10 05:24:51
PointerToSymbolTable: 0
NumberOfSymbols: 0
SizeOfOptionalHeader: 224
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
8192
43012
43520
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
5.47405
.rsrc
57344
2047
2048
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.88507
.reloc
65536
12
512
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0611629

Resources

Title
Entropy
Size
Codepage
Language
Type
1
3.15228
716
UNKNOWN
UNKNOWN
RT_VERSION
1 (#2)
5.22615
1171
UNKNOWN
UNKNOWN
RT_MANIFEST

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
Monitored processes
1
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #ASYNCRAT f559c085934e6e7d98e6d520684196eb.exe

Process information

PID
CMD
Path
Indicators
Parent process
2708"C:\Users\admin\AppData\Local\Temp\f559c085934e6e7d98e6d520684196eb.exe" C:\Users\admin\AppData\Local\Temp\f559c085934e6e7d98e6d520684196eb.exe
Explorer.EXE
User:
admin
Integrity Level:
MEDIUM
Version:
1.0.0.0
Modules
Images
c:\users\admin\appdata\local\temp\f559c085934e6e7d98e6d520684196eb.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll
AsyncRat
(PID) Process(2708) f559c085934e6e7d98e6d520684196eb.exe
Install_Folder%AppData%
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
Aes_Key47ed71be3a9819c172ab5ccb3346638aa5294a6cbb2e11bae2a1a024734c203a
BotnetDefault
bdosfalse
PasteBinnull
AntiVMfalse
Server_SignaturePPqD1aMRY4uDekbEIim5F4vOk6hhS/ouvkwlzP3QY26zuSuR5xkW2W4PZIhyiMPNgg+SjKSEoFNn+m1Ld6d+S4zYgBvQY7qyiDSqt1GnwjI8sNMNdCmEVYpjDi9xOGd7AOiJRRYcmyXWRfJI2L1oCNi/Fa2QpfWHni9P8XaRtWQ7yzAGmWrGPCq/jasY9d7HE3AvOCGtOvcrOux/FAdCorgNqc/SkrSoxNxgDER+ekI987ocNKECcMwn/aPrARRk+cDiFJYbkvIeJlH8TFmJAY4QTvFHdDpbqGlwMh6uOw9G...
CertificateMIIE5jCCAs6gAwIBAgIQAPI53jb4ULzAubdYCVf+VTANBgkqhkiG9w0BAQ0FADAUMRIwEAYDVQQDDAlib29tc3Rpa3MwIBcNMjIxMTIyMDQyOTAyWhgPOTk5OTEyMzEyMzU5NTlaMBQxEjAQBgNVBAMMCWJvb21zdGlrczCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAPil+3ZAmbLp2e5iWmi4Jc8TSaDSVJDKQ9qqtqHn1xIqLOpAi02Z82GD9AEha8DoRlgpR5EPZ+mB720T+CTgn7UNlQhs...
MutexAsyncMutex_6SI8OkPnk
Autorunfalse
Version0.5.7B
Ports (6)6606
7707
8808
51115
26993
19624
C2 (5)127.0.0.1
185.246.220.26
5.tcp.ngrok.io
disownnet.duckdns.org
7.tcp.eu.ngrok.io
Total events
4 274
Read events
4 260
Write events
14
Delete events
0

Modification events

(PID) Process:(2708) f559c085934e6e7d98e6d520684196eb.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
Executable files
0
Suspicious files
3
Text files
0
Unknown types
1

Dropped files

PID
Process
Filename
Type
2708f559c085934e6e7d98e6d520684196eb.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506compressed
MD5:FC4666CBCA561E864E7FDF883A9E6661
SHA256:10F3DEB6C452D749A7451B5D065F4C0449737E5EE8A44F4D15844B503141E65B
2708f559c085934e6e7d98e6d520684196eb.exeC:\Users\admin\AppData\Local\Temp\Tar2186.tmpcat
MD5:73B4B714B42FC9A6AAEFD0AE59ADB009
SHA256:C0CF8CC04C34B5B80A2D86AD0EAFB2DD71436F070C86B0321FBA0201879625FD
2708f559c085934e6e7d98e6d520684196eb.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506binary
MD5:CD900A0F9B0B8FBB84D51C2258F4996C
SHA256:FA7E5A00F4314CFC5CD0A260BE1128CAE82FB48C76F4002E34E142FF83BC6410
2708f559c085934e6e7d98e6d520684196eb.exeC:\Users\admin\AppData\Local\Temp\Cab2185.tmpcompressed
MD5:FC4666CBCA561E864E7FDF883A9E6661
SHA256:10F3DEB6C452D749A7451B5D065F4C0449737E5EE8A44F4D15844B503141E65B
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
5
DNS requests
7
Threats
4

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2708
f559c085934e6e7d98e6d520684196eb.exe
GET
200
41.63.96.128:80
http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?65506f2b8dec47b6
ZA
compressed
61.4 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2708
f559c085934e6e7d98e6d520684196eb.exe
35.157.111.131:19624
7.tcp.eu.ngrok.io
AMAZON-02
DE
malicious
2708
f559c085934e6e7d98e6d520684196eb.exe
41.63.96.128:80
ctldl.windowsupdate.com
LLNW
ZA
suspicious
2708
f559c085934e6e7d98e6d520684196eb.exe
185.246.220.26:7707
Delis LLC
BG
suspicious
2708
f559c085934e6e7d98e6d520684196eb.exe
75.177.105.113:51115
disownnet.duckdns.org
TWC-11426-CAROLINAS
US
unknown
2708
f559c085934e6e7d98e6d520684196eb.exe
3.142.157.76:51115
5.tcp.ngrok.io
AMAZON-02
US
unknown

DNS requests

Domain
IP
Reputation
5.tcp.ngrok.io
  • 3.142.157.76
malicious
dns.msftncsi.com
  • 131.107.255.255
shared
disownnet.duckdns.org
  • 75.177.105.113
unknown
7.tcp.eu.ngrok.io
  • 35.157.111.131
malicious
ctldl.windowsupdate.com
  • 41.63.96.128
  • 41.63.96.0
whitelisted

Threats

PID
Process
Class
Message
Potential Corporate Privacy Violation
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
Misc activity
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
Potential Corporate Privacy Violation
ET INFO DNS Query to a *.ngrok domain (ngrok.io)
2708
f559c085934e6e7d98e6d520684196eb.exe
A Network Trojan was detected
ET TROJAN Generic AsyncRAT Style SSL Cert
No debug info