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| File name: | bester_ffc.exe |
| Full analysis: | https://app.any.run/tasks/6df229ac-0e3f-4c05-9ced-f82920b6db63 |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | May 20, 2022, 17:17:28 |
| 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: | 50CF4D8A9AD059BA7A12AFB4E4CED006 |
| SHA1: | D4A19370605B7C88B059B4EFDD5BD20E6BA4F4F7 |
| SHA256: | 9E3B23B29B7A89CE0622DB3F876CF5D235F7237D5AE46C4D3B6226234ED3190F |
| SSDEEP: | 98304:cxOwnB8ERhNbYbbRDm2/w3mzZVBR5u12GddStSeFNJsLVvkw3/1lPOlkha9op:cxOwnpNM5Dm20mVqQGnpLT1glEa9q |
MALICIOUS
Drops executable file immediately after starts
- bester_ffc.exe (PID: 2620)
REDLINE was detected
- jsc.exe (PID: 2504)
Connects to CnC server
- jsc.exe (PID: 2504)
Steals credentials from Web Browsers
- jsc.exe (PID: 2504)
REDLINE detected by memory dumps
- jsc.exe (PID: 2504)
Actions looks like stealing of personal data
- jsc.exe (PID: 2504)
SUSPICIOUS
Reads the computer name
- bester_ffc.exe (PID: 2620)
- csc1409.exe (PID: 2148)
- jsc.exe (PID: 2504)
Checks supported languages
- bester_ffc.exe (PID: 2620)
- csc1409.exe (PID: 2148)
- jsc.exe (PID: 2504)
Executable content was dropped or overwritten
- bester_ffc.exe (PID: 2620)
Drops a file with a compile date too recent
- bester_ffc.exe (PID: 2620)
Starts itself from another location
- bester_ffc.exe (PID: 2620)
Reads Environment values
- jsc.exe (PID: 2504)
Reads the cookies of Google Chrome
- jsc.exe (PID: 2504)
Reads the cookies of Mozilla Firefox
- jsc.exe (PID: 2504)
Searches for installed software
- jsc.exe (PID: 2504)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
RedLine
(PID) Process(2504) jsc.exe
US (163)
LEnvironmentogiEnvironmentn DatEnvironmenta
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SELSystem.Windows.FormsECT * FRSystem.Windows.FormsOM WinSystem.Windows.Forms32_ProcSystem.Windows.Formsessor
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roSystem.Linqot\CISystem.LinqMV2
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C2 (1)37.1.213.132:22034
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| AssemblyVersion: | 0.0.0.0 |
|---|---|
| ProductVersion: | 1.2.3.4 |
| ProductName: | Microsoft® Windows® Operating System |
| OriginalFileName: | bester.exe |
| LegalCopyright: | © Microsoft Corporation. All rights reserved. |
| InternalName: | bester.exe |
| FileVersion: | 1.2.3.4 |
| FileDescription: | csc |
| CompanyName: | Microsoft Corporation |
| Comments: | csc |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.2.3.4 |
| FileVersionNumber: | 1.2.3.4 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x4da57e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 545280 |
| CodeSize: | 5080576 |
| LinkerVersion: | 11 |
| PEType: | PE32 |
| TimeStamp: | 2022:05:21 15:14:50+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 21-May-2022 13:14:50 |
| Detected languages: |
|
| Comments: | csc |
| CompanyName: | Microsoft Corporation |
| FileDescription: | csc |
| FileVersion: | 1.2.3.4 |
| InternalName: | bester.exe |
| LegalCopyright: | © Microsoft Corporation. All rights reserved. |
| OriginalFilename: | bester.exe |
| ProductName: | Microsoft® Windows® Operating System |
| ProductVersion: | 1.2.3.4 |
| Assembly Version: | 0.0.0.0 |
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: | 21-May-2022 13:14:50 |
| 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 | 0x004D8584 | 0x004D8600 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.68045 |
.rsrc | 0x004DC000 | 0x00084F70 | 0x00085000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 7.62356 |
.reloc | 0x00562000 | 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 | 4.79854 | 449 | Latin 1 / Western European | UNKNOWN | RT_MANIFEST |
2 | 3.33017 | 308 | Latin 1 / Western European | UNKNOWN | RT_CURSOR |
9 | 1.24891 | 48 | Latin 1 / Western European | English - United States | RT_STRING |
67 | 2.98781 | 324 | Latin 1 / Western European | English - United States | RT_STRING |
69 | 3.03468 | 488 | Latin 1 / Western European | English - United States | RT_STRING |
72 | 3.14657 | 450 | Latin 1 / Western European | English - United States | RT_STRING |
75 | 2.58051 | 134 | Latin 1 / Western European | English - United States | RT_STRING |
80 | 2.61423 | 138 | Latin 1 / Western European | English - United States | RT_STRING |
81 | 2.92265 | 252 | Latin 1 / Western European | English - United States | RT_STRING |
82 | 2.60291 | 140 | Latin 1 / Western European | English - United States | RT_STRING |
Imports
mscoree.dll |
Total processes
44
Monitored processes
4
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 3116 | "C:\Users\admin\Desktop\bester_ffc.exe" | C:\Users\admin\Desktop\bester_ffc.exe | — | Explorer.EXE |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: csc Exit code: 3221226540 Version: 1.2.3.4 | ||||
| 2620 | "C:\Users\admin\Desktop\bester_ffc.exe" | C:\Users\admin\Desktop\bester_ffc.exe | Explorer.EXE | |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: csc Exit code: 0 Version: 1.2.3.4 | ||||
| 2148 | "C:\Users\admin\AppData\Local\Temp\csc1409.exe" | C:\Users\admin\AppData\Local\Temp\csc1409.exe | — | bester_ffc.exe |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: csc Exit code: 0 Version: 1.2.3.4 | ||||
| 2504 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe | csc1409.exe | |
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: jsc.exe Exit code: 0 Version: 12.0.51209.34209 built by: FX452RTMGDR RedLine(PID) Process(2504) jsc.exe US (163) LEnvironmentogiEnvironmentn DatEnvironmenta Environment WSystem.Texteb DatSystem.Texta System.Text CoCryptographyokieCryptographys Cryptography ExtGenericension CooGenerickies Generic OFileInfopeFileInfora GFileInfoX StabFileInfole FileInfo OpLinqera GLinqX Linq ApGenericpDaGenericta\RGenericoamiGenericng\ Network Extension UNKNOWN . 1 cFileStreamredFileStreamit_cFileStreamardFileStreams FileStream \ Host Port : User Pass cookies.sqlite %USEDisposeRPROFILE%\AppDaDisposeta\LDisposeocal Dispose String.Replace String.Remove bcrFileStream.IOypt.dFileStream.IOll FileStream.IO BCrstring.EmptyyptOpestring.EmptynAlgorithmProvistring.Emptyder string.Empty BCruintyptCloseAlgorituinthmProvuintider uint BCrUnmanagedTypeyptDecrUnmanagedTypeypt UnmanagedType BCrbyte[]yptDesbyte[]troyKbyte[]ey byte[] BCpszPropertyryptGepszPropertytPropepszPropertyrty pszProperty BCEncodingryptSEncodingetPrEncodingoperEncodingty Encoding BCrbMasterKeyyptImbMasterKeyportKbMasterKeyey bMasterKey windows-1251 AES Microsoft Primitive Provider ChainingModeGCM AuthTagLength ChainingMode ObjectLength KeyDataBlob - {0} net.tcp:// / localhost 99570afbd453022b4c5192be526df77e Authorization ns1 UNKNWON Dw8PGSwhXRw+FjgZITU/ECoZCwwhKCxC DSEpFi8YIBw+KDxf Bullaries Yandex\YaAddon ToString asf *wallet* ZmZuYmVsZmRvZWlvaGVua2ppYm5tYWRqaWVoamhhamJ8WW9yb2lXYWxsZXQKaWJuZWpkZmptbWtwY25scGVia2xtbmtvZW9paG9mZWN8VHJvbmxpbmsKamJkYW9jbmVpaWlubWpiamxnYWxoY2VsZ2Jlam1uaWR8TmlmdHlXYWxsZXQKbmtiaWhmYmVvZ2FlYW9laGxlZm5rb2RiZWZncGdrbm58TWV0YW1hc2sKYWZiY2JqcGJwZmFkbGttaG1jbGhrZWVvZG1hbWNmbGN8TWF0aFdhbGxldApobmZhbmtu... _ T e l gr am ex \TeEnvironmentlegraEnvironmentm DEnvironmentesktoEnvironmentp\tdEnvironmentata string.Replace %USERPFile.WriteROFILE%\AppFile.WriteData\RoamiFile.Writeng File.Write Handler npvo* %USERPserviceInterface.ExtensionROFILE%\ApserviceInterface.ExtensionpData\LocaserviceInterface.Extensionl serviceInterface.Extension ProldCharotonVoldCharPN oldChar nSystem.CollectionspvoSystem.Collections* System.Collections ( UNIQUE cstringmstringd string /ProcessC Process Process | " Armenia Azerbaijan Belarus Kazakhstan Kyrgyzstan Moldova Tajikistan Uzbekistan Ukraine Russia gasdl94ja;sdiasdl94ja;s32 asdl94ja;s Gasdl94jlajsdetDevasdl94jlajsdiceCapasdl94jlajsds asdl94jlajsd Width Height CopyFromScreen https://api.ip.sb/ip SELSystem.Windows.FormsECT * FRSystem.Windows.FormsOM WinSystem.Windows.Forms32_ProcSystem.Windows.Formsessor System.Windows.Forms Name NumberOfCores roSystem.Linqot\CISystem.LinqMV2 System.Linq SELSystem.LinqECT * FRSystem.LinqOM WinSystem.Linq32_VideoCoSystem.Linqntroller AdapterRAM SOFTWARE\WOW6432Node\Clients\StartMenuInternet SOFTWARE\Clients\StartMenuInternet shell\open\command Unknown Version SELESystem.ManagementCT * FRSystem.ManagementOM WiSystem.Managementn32_DisSystem.ManagementkDrivSystem.Managemente System.Management SerialNumber SELSystem.Text.RegularExpressionsECT * FRSystem.Text.RegularExpressionsOM Win32_PSystem.Text.RegularExpressionsrocess WSystem.Text.RegularExpressionshere SessSystem.Text.RegularExpressionsionId=' ' FileSystem SSystem.ELECT * FRSystem.OM WiSystem.n32_ProcSystem.ess WherSystem.e SessiSystem.onId=' System. ExecutablePath [ ] Concat0 MConcatb oConcatr Concat0 Concat SELEMemoryCT * FMemoryROM WiMemoryn32_OperMemoryatingSMemoryystem Memory {0}{1}{2} x32 x64 x86 SOFTWARE\Microsoft\Windows NT\CurrentVersion ProductName CSDVersion Unknown _[ Network\ String Replace 80 81 0.0.0.0 Auth_value99570afbd453022b4c5192be526df77e Err_msg Botnet913622227 C2 (1)37.1.213.132:22034 | ||||
Total events
2 171
Read events
2 135
Write events
36
Delete events
0
Modification events
| (PID) Process: | (2620) bester_ffc.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (2620) bester_ffc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2620) bester_ffc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2620) bester_ffc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2620) bester_ffc.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (2148) csc1409.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2620 | bester_ffc.exe | C:\Users\admin\AppData\Local\Temp\csc1409.exe | executable | |
MD5:50CF4D8A9AD059BA7A12AFB4E4CED006 | SHA256:9E3B23B29B7A89CE0622DB3F876CF5D235F7237D5AE46C4D3B6226234ED3190F | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
0
Threats
0
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 |
|---|---|---|---|---|---|---|
2504 | jsc.exe | 37.1.213.132:22034 | — | Swiftway Sp. z o.o. | US | malicious |
DNS requests
Threats
23 ETPRO signatures available at the full report