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| File name: | download.dll |
| Full analysis: | https://app.any.run/tasks/871e4d81-31e8-4fd4-991e-0c7c755d6b3f |
| Verdict: | Malicious activity |
| Threats: | Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email. |
| Analysis date: | April 14, 2019, 18:56:34 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (DLL) (GUI) Intel 80386, for MS Windows |
| MD5: | B1D1A2C64474D2F6E7A5DB71CCBAFA31 |
| SHA1: | 91D8E6F993E8B294924811DF052E96CBEC0545AD |
| SHA256: | 58B223F74992F371CAB8F1DF7C03B9B66F2EA9E3C9E22122898A9BE62A05C0B4 |
| SSDEEP: | 768:8DNt/iTHsUOeDhlBkk7UEDhVn7CIxdy8VY+MLG8WrbEFv6aqwlVa+hNoiL0Kp4Vw:8hITMGF3kWR7CJ8V8OrbS5wKpSg73Pr |
MALICIOUS
Changes the autorun value in the registry
- rundll32.exe (PID: 2644)
Changes settings of System certificates
- rundll32.exe (PID: 3740)
SUSPICIOUS
Creates files in the user directory
- rundll32.exe (PID: 2644)
- rundll32.exe (PID: 3740)
Uses RUNDLL32.EXE to load library
- cmd.exe (PID: 2940)
Starts CMD.EXE for commands execution
- rundll32.exe (PID: 2644)
Executable content was dropped or overwritten
- rundll32.exe (PID: 2644)
Adds / modifies Windows certificates
- rundll32.exe (PID: 3740)
INFO
Loads main object executable
- rundll32.exe (PID: 2644)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| Subsystem: | Windows GUI |
|---|---|
| SubsystemVersion: | 5.1 |
| ImageVersion: | - |
| OSVersion: | 5.1 |
| EntryPoint: | 0x1732 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 50176 |
| CodeSize: | 19456 |
| LinkerVersion: | 10 |
| PEType: | PE32 |
| TimeStamp: | 2017:07:03 11:14:28+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 03-Jul-2017 09:14:28 |
| Detected languages: |
|
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: | 0x000000E8 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 5 |
| Time date stamp: | 03-Jul-2017 09:14:28 |
| 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 | 0x00001000 | 0x00004BD8 | 0x00004C00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.5195 |
.rdata | 0x00006000 | 0x00002811 | 0x00002A00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.77796 |
.data | 0x00009000 | 0x0000925C | 0x00008600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 6.36654 |
.rsrc | 0x00013000 | 0x000001B4 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 5.10724 |
.reloc | 0x00014000 | 0x0000103E | 0x00001200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 3.33248 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
2 | 4.79597 | 346 | Latin 1 / Western European | English - United States | RT_MANIFEST |
Imports
ADVAPI32.dll |
KERNEL32.dll |
Exports
Title | Ordinal | Address |
|---|---|---|
load | 1 | 0x00001140 |
Total processes
34
Monitored processes
3
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2644 | "C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\download.dll.exe", load | C:\Windows\System32\rundll32.exe | explorer.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
| 2940 | cmd /c C:\Users\admin\AppData\Roaming\mrset.bat | C:\Windows\System32\cmd.exe | — | rundll32.exe |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Exit code: 0 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) | ||||
| 3740 | rundll32.exe "C:\Users\admin\AppData\Roaming\mvtband.dat",#1 | C:\Windows\system32\rundll32.exe | cmd.exe | |
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Version: 6.1.7600.16385 (win7_rtm.090713-1255) | ||||
Total events
79
Read events
41
Write events
0
Delete events
0
Modification events
Executable files
1
Suspicious files
0
Text files
5
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3740 | rundll32.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@google[4].txt | — | |
MD5:— | SHA256:— | |||
| 3740 | rundll32.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@google[3].txt | text | |
MD5:E5C6E07DFE70014E3AE209095F2C9824 | SHA256:42143FE0B6A82B2CF0D5D571B6F3408C2CEF925150150ACF4D35BDF11E3F8261 | |||
| 3740 | rundll32.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@google[1].txt | text | |
MD5:ADE458D66644238A6E5E8705AA294A1D | SHA256:FD0632E12DE24645E9115AAD5905F086BEFE7635B517609D2D744696011CAE85 | |||
| 3740 | rundll32.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@google[2].txt | text | |
MD5:7CC8A31281F384F8772198B14C335F57 | SHA256:E4F0590402E16C5D3AE5D72DFDBED45E62CBF563662884157FBA6700E2F5A497 | |||
| 2644 | rundll32.exe | C:\Users\admin\AppData\Roaming\mrset.bat | text | |
MD5:583EA25B69FEDED9F65CFBFF169147A9 | SHA256:51EAF3B30C1EA932843CB9F5B6FB41804976D94A53A507CCB292B8392276CFD6 | |||
| 2644 | rundll32.exe | C:\Users\admin\AppData\Roaming\mvtband.dat | executable | |
MD5:1421419D1BE31F1F9EA60E8ED87277DB | SHA256:8C47961181D9929333628AF20BDD750021E925F40065374E6B876E3B8AFBBA57 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
4
DNS requests
3
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 |
|---|---|---|---|---|---|---|
3740 | rundll32.exe | 172.217.23.164:443 | www.google.com | Google Inc. | US | whitelisted |
3740 | rundll32.exe | 52.45.178.122:443 | mvband.net | Amazon.com, Inc. | US | malicious |
3740 | rundll32.exe | 216.58.207.46:443 | — | Google Inc. | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
mvband.net |
| malicious |
mvtband.net |
| malicious |
www.google.com |
| whitelisted |
Threats
2 ETPRO signatures available at the full report