File name: | AsyncClient.exe |
Full analysis: | https://app.any.run/tasks/9cbf92cd-ccc2-4eca-989b-1e1532db3850 |
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: | November 30, 2020, 02:02:42 |
OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
Tags: | |
Indicators: | |
MIME: | application/x-dosexec |
File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
MD5: | BFCBFB2ADF07085C32ED013817C11DAE |
SHA1: | C47083F960237416CA57692C2295E79CEF04E667 |
SHA256: | 7991BE3442B5A0C72A7CFF9ADB69425F836C4D4E176CB8A041989ED7DBB7DFDE |
SSDEEP: | 768:EuSyNT3ol7xWUpe+7mo2qLbKjGKG6PIyzjbFgX3iyDlcKQA3v778Qw6gDGfBDZTx:EuSyNT3K522KYDy3bCXS8lcKQA3vnOz4 |
.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) |
MachineType: | Intel 386 or later, and compatibles |
---|---|
TimeStamp: | 2020:05:10 07:24:51+02:00 |
PEType: | PE32 |
LinkerVersion: | 8 |
CodeSize: | 43008 |
InitializedDataSize: | 2560 |
UninitializedDataSize: | - |
EntryPoint: | 0xc74e |
OSVersion: | 4 |
ImageVersion: | - |
SubsystemVersion: | 4 |
Subsystem: | Windows GUI |
FileVersionNumber: | 1.0.0.0 |
ProductVersionNumber: | 1.0.0.0 |
FileFlagsMask: | 0x003f |
FileFlags: | (none) |
FileOS: | Win32 |
ObjectFileType: | Executable application |
FileSubtype: | - |
LanguageCode: | Neutral |
CharacterSet: | Unicode |
Comments: | - |
CompanyName: | - |
FileDescription: | - |
FileVersion: | 1.0.0.0 |
InternalName: | Stub.exe |
LegalCopyright: | - |
LegalTrademarks: | - |
OriginalFileName: | Stub.exe |
ProductName: | - |
ProductVersion: | 1.0.0.0 |
AssemblyVersion: | 1.0.0.0 |
Architecture: | IMAGE_FILE_MACHINE_I386 |
---|---|
Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
Compilation Date: | 10-May-2020 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 |
Magic number: | MZ |
---|---|
Bytes on last page of file: | 0x0090 |
Pages in file: | 0x0003 |
Relocations: | 0x0000 |
Size of header: | 0x0004 |
Min extra paragraphs: | 0x0000 |
Max extra paragraphs: | 0xFFFF |
Initial SS value: | 0x0000 |
Initial SP value: | 0x00B8 |
Checksum: | 0x0000 |
Initial IP value: | 0x0000 |
Initial CS value: | 0x0000 |
Overlay number: | 0x0000 |
OEM identifier: | 0x0000 |
OEM information: | 0x0000 |
Address of NE header: | 0x00000080 |
Signature: | PE |
---|---|
Machine: | IMAGE_FILE_MACHINE_I386 |
Number of sections: | 3 |
Time date stamp: | 10-May-2020 05:24:51 |
Pointer to Symbol Table: | 0x00000000 |
Number of symbols: | 0 |
Size of Optional Header: | 0x00E0 |
Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
---|---|---|---|---|---|
.text | 0x00002000 | 0x0000A754 | 0x0000A800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.50593 |
.rsrc | 0x0000E000 | 0x000007FF | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.88507 |
.reloc | 0x00010000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Title | Entropy | Size | Codepage | Language | Type |
---|---|---|---|---|---|
1 | 5.22615 | 1171 | UNKNOWN | UNKNOWN | RT_MANIFEST |
mscoree.dll |
PID | CMD | Path | Indicators | Parent process |
---|---|---|---|---|
2960 | "C:\Users\admin\AppData\Local\Temp\AsyncClient.exe" | C:\Users\admin\AppData\Local\Temp\AsyncClient.exe | explorer.exe | |
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 | ||||
2832 | cmd /c ""C:\Users\admin\AppData\Local\Temp\tmpE152.tmp.bat"" | C:\Windows\system32\cmd.exe | — | AsyncClient.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
3712 | timeout 3 | C:\Windows\system32\timeout.exe | — | cmd.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: timeout - pauses command processing Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
2380 | "C:\Users\admin\AppData\Local\Temp\SpaceX.exe" | C:\Users\admin\AppData\Local\Temp\SpaceX.exe | cmd.exe | |
User: admin Integrity Level: MEDIUM Version: 1.0.0.0 |
(PID) Process: | (2960) AsyncClient.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E |
Operation: | write | Name: | LanguageList |
Value: en-US | |||
(PID) Process: | (2960) AsyncClient.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
Operation: | write | Name: | SpaceX |
Value: "C:\Users\admin\AppData\Local\Temp\SpaceX.exe" | |||
(PID) Process: | (2380) SpaceX.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\13B\52C64B7E |
Operation: | write | Name: | LanguageList |
Value: en-US |
PID | Process | Filename | Type | |
---|---|---|---|---|
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Cab15.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Tar16.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Cab27.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Tar28.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Cab104.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Tar105.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Cab183.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Tar184.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Cab1D3.tmp | — | |
MD5:— | SHA256:— | |||
2380 | SpaceX.exe | C:\Users\admin\AppData\Local\Temp\Tar1D4.tmp | — | |
MD5:— | SHA256:— |
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
---|---|---|---|---|---|---|---|---|---|
2380 | SpaceX.exe | GET | 200 | 67.27.235.254:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 57.5 Kb | whitelisted |
2380 | SpaceX.exe | GET | 304 | 67.27.235.254:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 57.5 Kb | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
---|---|---|---|---|---|---|
2380 | SpaceX.exe | 67.27.235.254:80 | www.download.windowsupdate.com | Level 3 Communications, Inc. | US | suspicious |
2380 | SpaceX.exe | 24.240.72.240:5353 | chair123.ddns.net | Charter Communications | US | malicious |
Domain | IP | Reputation |
---|---|---|
chair123.ddns.net |
| malicious |
www.download.windowsupdate.com |
| whitelisted |
PID | Process | Class | Message |
---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
2380 | SpaceX.exe | A Network Trojan was detected | MALWARE [PTsecurity] AsyncRAT |
2380 | SpaceX.exe | A Network Trojan was detected | ET TROJAN Observed Malicious SSL Cert (AsyncRAT Server) |
2380 | SpaceX.exe | A Network Trojan was detected | MALWARE [PTsecurity] AsyncRAT |
2380 | SpaceX.exe | A Network Trojan was detected | SUSPICIOUS [PTsecurity] Possible AsyncRAT SSL certificate |