analyze malware
- Huge database of samples and IOCs
- Custom VM setup
- Unlimited submissions
- Interactive approach
| File name: | b3a25f8fa62494ca8b99b28c4b4bb9b7 |
| Full analysis: | https://app.any.run/tasks/4a999b4f-ccea-4a42-b426-10e928c99034 |
| Verdict: | Malicious activity |
| Analysis date: | May 20, 2022, 16:53:41 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | B3A25F8FA62494CA8B99B28C4B4BB9B7 |
| SHA1: | 19D005238C5A8B59C3DD02EEADEFCAF76D2310C3 |
| SHA256: | E793DAC4E4C4C8553C02CBE177B1DE4759BF777D150ECA151C53E9C58F6B23D3 |
| SSDEEP: | 12288:DEtJPfQaiVgb2TPA41j2lCT1Pb+74+6DOJgJffv5Hs5VOj8ogAt:0fyVgb2TPzqcT1Pb+74+RJUXv5HI |
MALICIOUS
Drops executable file immediately after starts
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 1492)
Uses Task Scheduler to run other applications
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
SUSPICIOUS
Reads the computer name
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Checks supported languages
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Creates files in the user directory
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Executable content was dropped or overwritten
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Drops a file with a compile date too recent
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
Application launched itself
- b3a25f8fa62494ca8b99b28c4b4bb9b7.exe (PID: 2872)
INFO
Checks supported languages
- schtasks.exe (PID: 1492)
Reads the computer name
- schtasks.exe (PID: 1492)
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.) (49) |
|---|---|---|
| .exe | | | Win32 Executable MS Visual C++ (generic) (20.9) |
| .exe | | | Win64 Executable (generic) (18.5) |
| .dll | | | Win32 Dynamic Link Library (generic) (4.4) |
| .exe | | | Win32 Executable (generic) (3) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2022:05:20 08:47:05+02:00 |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 638976 |
| InitializedDataSize: | 16384 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x9c7fa |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2.3.0.0 |
| ProductVersionNumber: | 2.3.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | TFlow |
| FileVersion: | 2.3.0.0 |
| InternalName: | AsyncMethodBuilderC.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | AsyncMethodBuilderC.exe |
| ProductName: | TFlow |
| ProductVersion: | 2.3.0.0 |
| AssemblyVersion: | 2.3.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 20-May-2022 06:47:05 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | TFlow |
| FileVersion: | 2.3.0.0 |
| InternalName: | AsyncMethodBuilderC.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | AsyncMethodBuilderC.exe |
| ProductName: | TFlow |
| ProductVersion: | 2.3.0.0 |
| Assembly Version: | 2.3.0.0 |
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: | 20-May-2022 06:47:05 |
| 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 | 0x0009A8C8 | 0x0009C000 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.85985 |
.rsrc | 0x0009E000 | 0x000019E8 | 0x00002000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 6.40878 |
.reloc | 0x000A0000 | 0x0000000C | 0x00002000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.00881485 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.29964 | 788 | UNKNOWN | UNKNOWN | RT_VERSION |
32512 | 1.51664 | 20 | UNKNOWN | UNKNOWN | RT_GROUP_ICON |
Imports
mscoree.dll |
Total processes
36
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2872 | "C:\Users\admin\AppData\Local\Temp\b3a25f8fa62494ca8b99b28c4b4bb9b7.exe" | C:\Users\admin\AppData\Local\Temp\b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | Explorer.EXE | |
User: admin Integrity Level: MEDIUM Description: TFlow Exit code: 0 Version: 2.3.0.0 | ||||
| 1492 | "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CXOsgJb" /XML "C:\Users\admin\AppData\Local\Temp\tmpF86B.tmp" | C:\Windows\System32\schtasks.exe | — | b3a25f8fa62494ca8b99b28c4b4bb9b7.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 3888 | "C:\Users\admin\AppData\Local\Temp\b3a25f8fa62494ca8b99b28c4b4bb9b7.exe" | C:\Users\admin\AppData\Local\Temp\b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | — | b3a25f8fa62494ca8b99b28c4b4bb9b7.exe |
User: admin Integrity Level: MEDIUM Description: TFlow Exit code: 0 Version: 2.3.0.0 | ||||
Total events
349
Read events
341
Write events
8
Delete events
0
Modification events
| (PID) Process: | (2872) b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2872) b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2872) b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2872) b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2872 | b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | C:\Users\admin\AppData\Roaming\CXOsgJb.exe | executable | |
MD5:B3A25F8FA62494CA8B99B28C4B4BB9B7 | SHA256:E793DAC4E4C4C8553C02CBE177B1DE4759BF777D150ECA151C53E9C58F6B23D3 | |||
| 2872 | b3a25f8fa62494ca8b99b28c4b4bb9b7.exe | C:\Users\admin\AppData\Local\Temp\tmpF86B.tmp | xml | |
MD5:6ED0AFD3946A159E98A79A9A63E21FF0 | SHA256:670D5E6A901C8BA253B36A84A5E39D616EDC9617AF7D30590D2828A7DB7E727B | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
0
DNS requests
0
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report