| File name: | 0 Crypter .exe |
| Full analysis: | https://app.any.run/tasks/eb0415dd-7e5a-4757-9cb6-9961416ab724 |
| 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: | July 20, 2020, 17:59:25 |
| 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: | A1CDFAC6C2B01CB7A2515D83C595218E |
| SHA1: | 169FBB5542A667BE839992169BC7FECB2D364761 |
| SHA256: | 421260888422C0BC9D54618ABF7EDB36A79B71E6D237BDF8B7A8E4116CD529C4 |
| SSDEEP: | 3072:O7rPfbUNXYOwY47mZ5HeEIeYEBHdFRE3rCWpsgZtaHUPkmFT:KPIN3wYqerIMfmrBaE |
MALICIOUS
Application was dropped or rewritten from another process
- Fcoujs.exe (PID: 2884)
- Eykwmto.exe (PID: 540)
- Ehrnb.exe (PID: 3872)
- Nhwti.exe (PID: 3088)
- system.exe (PID: 624)
- System.exe (PID: 3172)
Changes the autorun value in the registry
- Eykwmto.exe (PID: 540)
- system.exe (PID: 624)
- Nhwti.exe (PID: 3088)
REMCOS was detected
- system.exe (PID: 624)
Runs PING.EXE for delay simulation
- cmd.exe (PID: 924)
ASYNCRAT was detected
- System.exe (PID: 3172)
SUSPICIOUS
Executable content was dropped or overwritten
- Fcoujs.exe (PID: 2884)
- 0 Crypter .exe (PID: 688)
- Nhwti.exe (PID: 3088)
- Eykwmto.exe (PID: 540)
Starts CMD.EXE for commands execution
- Eykwmto.exe (PID: 540)
- Nhwti.exe (PID: 3088)
Creates files in the user directory
- Eykwmto.exe (PID: 540)
- Nhwti.exe (PID: 3088)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:07:19 15:58:36+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 130560 |
| InitializedDataSize: | 7680 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x21cae |
| 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: | |
| FileDescription: | |
| FileVersion: | 1.0.0.0 |
| InternalName: | 0 Crypter .exe |
| LegalCopyright: | |
| OriginalFileName: | 0 Crypter .exe |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 19-Jul-2020 13:58:36 |
| Comments: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | 0 Crypter .exe |
| LegalCopyright: | - |
| OriginalFilename: | 0 Crypter .exe |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| 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 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 19-Jul-2020 13:58:36 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x0001FCB4 | 0x0001FE00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.98202 |
.rsrc | 0x00022000 | 0x00001AF8 | 0x00001C00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.4913 |
.reloc | 0x00024000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
2 | 5.52435 | 1128 | UNKNOWN | UNKNOWN | RT_ICON |
3 | 5.2137 | 4264 | UNKNOWN | UNKNOWN | RT_ICON |
32512 | 2.30604 | 34 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
mscoree.dll |
Total processes
47
Monitored processes
11
Malicious processes
8
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 540 | "C:\Users\admin\AppData\Local\Temp\Eykwmto.exe" | C:\Users\admin\AppData\Local\Temp\Eykwmto.exe | Fcoujs.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 624 | "C:\Users\admin\AppData\Roaming\System\system.exe" | C:\Users\admin\AppData\Roaming\System\system.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 688 | "C:\Users\admin\AppData\Local\Temp\0 Crypter .exe" | C:\Users\admin\AppData\Local\Temp\0 Crypter .exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 924 | cmd /c ""C:\Users\admin\AppData\Local\Temp\install.bat" " | C:\Windows\system32\cmd.exe | — | Eykwmto.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) Modules
| |||||||||||||||
| 952 | 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) Modules
| |||||||||||||||
| 1820 | cmd /c ""C:\Users\admin\AppData\Local\Temp\tmp1B87.tmp.bat"" | C:\Windows\system32\cmd.exe | — | Nhwti.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) Modules
| |||||||||||||||
| 2884 | "C:\Users\admin\AppData\Local\Temp\Fcoujs.exe" | C:\Users\admin\AppData\Local\Temp\Fcoujs.exe | 0 Crypter .exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3088 | "C:\Users\admin\AppData\Local\Temp\Nhwti.exe" | C:\Users\admin\AppData\Local\Temp\Nhwti.exe | 0 Crypter .exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3172 | "C:\Users\admin\AppData\Roaming\System.exe" | C:\Users\admin\AppData\Roaming\System.exe | cmd.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3256 | PING 127.0.0.1 -n 2 | C:\Windows\system32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
Total events
1 143
Read events
1 102
Write events
41
Delete events
0
Modification events
| (PID) Process: | (2884) Fcoujs.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2884) Fcoujs.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (688) 0 Crypter .exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (688) 0 Crypter .exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (540) Eykwmto.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | system |
Value: "C:\Users\admin\AppData\Roaming\System\system.exe" | |||
| (PID) Process: | (540) Eykwmto.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (540) Eykwmto.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (624) system.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | system |
Value: "C:\Users\admin\AppData\Roaming\System\system.exe" | |||
| (PID) Process: | (624) system.exe | Key: | HKEY_CURRENT_USER\Software\remcos_cporwanjod |
| Operation: | write | Name: | EXEpath |
Value: EŽ/ ÉËàSQÖ_bžÿ‡EŸûwÌÎK$0ÆðÃ(`JâU‘?!kÛÊiˆM]qÈÒ™ | |||
| (PID) Process: | (3088) Nhwti.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\132\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
6
Suspicious files
2
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3172 | System.exe | C:\Users\admin\AppData\Local\Temp\Cab398F.tmp | — | |
MD5:— | SHA256:— | |||
| 3172 | System.exe | C:\Users\admin\AppData\Local\Temp\Tar3990.tmp | — | |
MD5:— | SHA256:— | |||
| 3172 | System.exe | C:\Users\admin\AppData\Local\Temp\Cab39A0.tmp | — | |
MD5:— | SHA256:— | |||
| 3172 | System.exe | C:\Users\admin\AppData\Local\Temp\Tar39A1.tmp | — | |
MD5:— | SHA256:— | |||
| 688 | 0 Crypter .exe | C:\Users\admin\AppData\Local\Temp\Fcoujs.exe | executable | |
MD5:— | SHA256:— | |||
| 688 | 0 Crypter .exe | C:\Users\admin\AppData\Local\Temp\Nhwti.exe | executable | |
MD5:— | SHA256:— | |||
| 2884 | Fcoujs.exe | C:\Users\admin\AppData\Local\Temp\Eykwmto.exe | executable | |
MD5:— | SHA256:— | |||
| 3172 | System.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 | compressed | |
MD5:— | SHA256:— | |||
| 3172 | System.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 | binary | |
MD5:— | SHA256:— | |||
| 3088 | Nhwti.exe | C:\Users\admin\AppData\Local\Temp\tmp1B87.tmp.bat | text | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
DNS requests
3
Threats
5
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3172 | System.exe | 8.248.131.254:80 | www.download.windowsupdate.com | Level 3 Communications, Inc. | US | suspicious |
3172 | System.exe | 151.95.173.129:255 | w1w2w3.hopto.org | Wind Telecomunicazioni SpA | IT | malicious |
3172 | System.exe | 67.26.137.254:80 | www.download.windowsupdate.com | Level 3 Communications, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
cholito1312.ddns.net |
| malicious |
w1w2w3.hopto.org |
| malicious |
www.download.windowsupdate.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.hopto .org |
— | — | A Network Trojan was detected | MALWARE [PTsecurity] AsyncRAT |
— | — | A Network Trojan was detected | MALWARE [PTsecurity] AsyncRAT |
1 ETPRO signatures available at the full report