| File name: | rundll32.exe |
| Full analysis: | https://app.any.run/tasks/be41b729-5ef4-4d3d-a3c7-d2e6f87e8836 |
| Verdict: | Malicious activity |
| Threats: | A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices. |
| Analysis date: | February 20, 2022, 06:46:32 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | 76A783EC0755576F84261B85E2F8D872 |
| SHA1: | 08B19511BDBCE27DF2104B073E0486CF890BDFE3 |
| SHA256: | 0EDEDCC326D5A74401A54C3712C93D525187DD2DFD06E4B0286AA9D749017787 |
| SSDEEP: | 24576:IL7py28cIe/guyiSERS+hIk+33oegt3I9vTrdfb4oJKOX:Ivpy28cH/guj7R/OkZekKv54aH |
| .exe | | | Win64 Executable (generic) (61.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.6) |
| .exe | | | Win32 Executable (generic) (10) |
| .exe | | | Win16/32 Executable Delphi generic (4.6) |
| .exe | | | Generic Win/DOS Executable (4.4) |
| UnityVersion: | 2019.4.15f1_fbf367ac14e9 |
|---|---|
| ProductVersion: | 2019.4.15.16511847 |
| FileVersion: | 2019.4.15.16511847 |
| CharacterSet: | Unicode |
| LanguageCode: | English (U.S.) |
| FileSubtype: | - |
| ObjectFileType: | Unknown |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 2019.4.15.62311 |
| FileVersionNumber: | 2019.4.15.62311 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0x31db7 |
| UninitializedDataSize: | - |
| InitializedDataSize: | 1536 |
| CodeSize: | 683008 |
| LinkerVersion: | 2.25 |
| PEType: | PE32 |
| TimeStamp: | 2022:01:16 01:24:56+01:00 |
| MachineType: | Intel 386 or later, and compatibles |
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 16-Jan-2022 00:24:56 |
| Detected languages: |
|
| FileVersion: | 2019.4.15.16511847 |
| ProductVersion: | 2019.4.15.16511847 |
| Unity Version: | 2019.4.15f1_fbf367ac14e9 |
| 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: | 6 |
| Time date stamp: | 16-Jan-2022 00:24:56 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
0x000B0000 | 0x00280000 | 0x0002BA00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.99829 | |
.rsrc | 0x000AE000 | 0x00002000 | 0x00000400 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 1.9147 |
.data | 0x00330000 | 0x000E4000 | 0x000E2E00 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 7.98749 |
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 3.37081 | 456 | UNKNOWN | English - United States | RT_VERSION |
advapi32.dll |
gdi32.dll |
kernel32.dll |
mscoree.dll |
oleaut32.dll |
shell32.dll |
user32.dll |
version.dll |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 388 | schtasks /run /tn lsass | C:\Windows\system32\schtasks.exe | — | cmd.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) Modules
| |||||||||||||||
| 520 | C:\Users\Public\Libraries\csrss.exe | C:\Users\Public\Libraries\csrss.exe | — | taskeng.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2019.4.15.16511847 Modules
| |||||||||||||||
| 1012 | "C:\Users\admin\AppData\Local\Temp\rundll32.exe" | C:\Users\admin\AppData\Local\Temp\rundll32.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2019.4.15.16511847 Modules
| |||||||||||||||
| 1860 | "C:\MSOCache\All Users\lsass.exe" | C:\MSOCache\All Users\lsass.exe | — | taskeng.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2019.4.15.16511847 Modules
| |||||||||||||||
| 1956 | "C:\MSOCache\All Users\{90140000-0015-0407-0000-0000000FF1CE}-C\lsass.exe" | C:\MSOCache\All Users\{90140000-0015-0407-0000-0000000FF1CE}-C\lsass.exe | rundll32.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2019.4.15.16511847 Modules
| |||||||||||||||
| 2008 | schtasks /run /tn lsass | C:\Windows\system32\schtasks.exe | — | cmd.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) Modules
| |||||||||||||||
| 2116 | schtasks /run /tn csrss | C:\Windows\system32\schtasks.exe | — | cmd.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) Modules
| |||||||||||||||
| 2668 | schtasks.exe /create /tn "csrss" /sc minute /mo 12 /tr "'C:\Users\Public\Libraries\csrss.exe'" /f | C:\Windows\system32\schtasks.exe | — | wmiprvse.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) Modules
| |||||||||||||||
| 2836 | schtasks.exe /create /tn "lsass" /sc minute /mo 13 /tr "'C:\MSOCache\All Users\lsass.exe'" /f | C:\Windows\system32\schtasks.exe | — | wmiprvse.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) Modules
| |||||||||||||||
| 2876 | "C:\MSOCache\All Users\lsass.exe" | C:\MSOCache\All Users\lsass.exe | — | taskeng.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 2019.4.15.16511847 Modules
| |||||||||||||||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | lsass |
Value: "C:\MSOCache\All Users\{90140000-0015-0407-0000-0000000FF1CE}-C\lsass.exe" | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | wininit |
Value: "C:\ProgramData\Documents\wininit.exe" | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | csrss |
Value: "C:\Users\Public\Libraries\csrss.exe" | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | lsass |
Value: "C:\MSOCache\All Users\lsass.exe" | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\d4130747fc7ddc824a4d1e8172707a050a327583 |
| Operation: | write | Name: | 3ae30633dac80af7c2d5f2cf1a2e61673b688726 |
Value: WyJDOlxcVXNlcnNcXGFkbWluXFxBcHBEYXRhXFxMb2NhbFxcVGVtcFxccnVuZGxsMzIuZXhlIiwiQzpcXE1TT0NhY2hlXFxBbGwgVXNlcnNcXHs5MDE0MDAwMC0wMDE1LTA0MDctMDAwMC0wMDAwMDAwRkYxQ0V9LUNcXGxzYXNzLmV4ZSIsIkM6XFxQcm9ncmFtRGF0YVxcRG9jdW1lbnRzXFx3aW5pbml0LmV4ZSIsIkM6XFxVc2Vyc1xcUHVibGljXFxMaWJyYXJpZXNcXGNzcnNzLmV4ZSIsIkM6XFxNU09DYWNoZVxcQWxsIFVzZXJzXFxsc2Fzcy5leGUiXQ== | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (1012) rundll32.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (1956) lsass.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\lsass_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1012 | rundll32.exe | C:\MSOCache\All Users\{90140000-0015-0407-0000-0000000FF1CE}-C\lsass.exe | executable | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\Users\Public\Documents\wininit.exe | executable | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\Users\Public\Documents\56085415360792 | text | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\MSOCache\All Users\{90140000-0015-0407-0000-0000000FF1CE}-C\6203df4a6bafc7 | text | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\Users\Public\Libraries\csrss.exe | executable | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\MSOCache\All Users\lsass.exe | executable | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\Users\Public\Libraries\886983d96e3d3e | text | |
MD5:— | SHA256:— | |||
| 1012 | rundll32.exe | C:\MSOCache\All Users\6203df4a6bafc7 | text | |
MD5:— | SHA256:— | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1956 | lsass.exe | GET | — | 91.199.189.135:80 | http://91.199.189.135/Voiddb76/6Cdn/1/ProviderwpDle/9/tempwpMulti/ApiProtonjavascript3/3Windows/TestPrivatePhpvoiddb/jsLocal.php?xeSy1zfZT1BFUgwCzX=xjvsbAHByNatfVhKC50lXd3G92KaH3&eO3A8Bw0yuyqL2HftxVuH9wjT=psj0q44b6flUiIQEB0jwsN&76c63ce14f4ca618679cf576f3bc8a9a=358e8385ec166642c1912da3def69d6a&8ccb699102826dc28ebebc561817192a=QYihTOlBzY0cjYhdzYyYzY1MGZkVWZ1gTZyImZlZDZ2MzY3EjMmZDZ&xeSy1zfZT1BFUgwCzX=xjvsbAHByNatfVhKC50lXd3G92KaH3&eO3A8Bw0yuyqL2HftxVuH9wjT=psj0q44b6flUiIQEB0jwsN | RU | — | — | malicious |
1956 | lsass.exe | GET | — | 91.199.189.135:80 | http://91.199.189.135/Voiddb76/6Cdn/1/ProviderwpDle/9/tempwpMulti/ApiProtonjavascript3/3Windows/TestPrivatePhpvoiddb/jsLocal.php?xeSy1zfZT1BFUgwCzX=xjvsbAHByNatfVhKC50lXd3G92KaH3&eO3A8Bw0yuyqL2HftxVuH9wjT=psj0q44b6flUiIQEB0jwsN&76c63ce14f4ca618679cf576f3bc8a9a=358e8385ec166642c1912da3def69d6a&8ccb699102826dc28ebebc561817192a=QYihTOlBzY0cjYhdzYyYzY1MGZkVWZ1gTZyImZlZDZ2MzY3EjMmZDZ&xeSy1zfZT1BFUgwCzX=xjvsbAHByNatfVhKC50lXd3G92KaH3&eO3A8Bw0yuyqL2HftxVuH9wjT=psj0q44b6flUiIQEB0jwsN | RU | — | — | malicious |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1956 | lsass.exe | 91.199.189.135:80 | — | ECom-IT Limited | RU | malicious |
PID | Process | Class | Message |
|---|---|---|---|
1956 | lsass.exe | A Network Trojan was detected | ET TROJAN DCRAT Activity (GET) |
1956 | lsass.exe | A Network Trojan was detected | ET TROJAN DCRAT Activity (GET) |