URL:

http://42.51.40.73:280/Rstrnd.exe

Full analysis: https://app.any.run/tasks/302f3230-afaa-4f8d-8259-35d8b9c01c4e
Verdict: Malicious activity
Threats:

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

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Analysis date: December 06, 2018, 05:32:29
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
loader
Indicators:
MD5:

683FA0FE2278ECB8041DC958A2F89A0F

SHA1:

73978E4831779DE778537BFC8F2737D4D5E4BE64

SHA256:

C3C8510F3692F7EB258EEFD3414F069560145E46D95F8C82AF71B7C69A37D2DF

SSDEEP:

3:N1KK9RVhfXdgmH4A:CK9RVJXdFH4A

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Downloads executable files from the Internet

      • iexplore.exe (PID: 3104)

    • Application was dropped or rewritten from another process

      • Rstrnd[1].exe (PID: 2948)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • iexplore.exe (PID: 2800)
      • iexplore.exe (PID: 3104)

  • INFO

    • Application launched itself

      • iexplore.exe (PID: 2800)

    • Reads Internet Cache Settings

      • iexplore.exe (PID: 3104)
      • iexplore.exe (PID: 2800)

    • Connects to unusual port

      • iexplore.exe (PID: 3104)

    • Changes internet zones settings

      • iexplore.exe (PID: 2800)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
31
Monitored processes
3
Malicious processes
1
Suspicious processes
1

Behavior graph

Click at the process to see the details
drop and start start iexplore.exe iexplore.exe rstrnd[1].exe

Process information

PID
CMD
Path
Indicators
Parent process
2800"C:\Program Files\Internet Explorer\iexplore.exe" -nohomeC:\Program Files\Internet Explorer\iexplore.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
1
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
2948"C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\Rstrnd[1].exe" C:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\Rstrnd[1].exe
iexplore.exe
User:
admin
Integrity Level:
MEDIUM
Description:
AlexfHistogram MFC Application
Exit code:
0
Version:
1, 0, 0, 1
Modules
Images
c:\users\admin\appdata\local\microsoft\windows\temporary internet files\content.ie5\r9zewh8d\rstrnd[1].exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\comdlg32.dll
3104"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2800 CREDAT:71937C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Exit code:
0
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\program files\internet explorer\iexplore.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
Total events
630
Read events
578
Write events
48
Delete events
4

Modification events

(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Operation:writeName:CompatibilityFlags
Value:
0
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones
Operation:writeName:SecuritySafe
Value:
1
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Operation:writeName:ProxyEnable
Value:
0
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections
Operation:writeName:SavedLegacySettings
Value:
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
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Recovery\Active
Operation:writeName:{61DD18F5-F918-11E8-BAD8-5254004A04AF}
Value:
0
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{2670000A-7350-4F3C-8081-5663EE0C6C49}\iexplore
Operation:writeName:Type
Value:
4
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{2670000A-7350-4F3C-8081-5663EE0C6C49}\iexplore
Operation:writeName:Count
Value:
3
(PID) Process:(2800) iexplore.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{2670000A-7350-4F3C-8081-5663EE0C6C49}\iexplore
Operation:writeName:Time
Value:
E2070C0004000600050020003800BB02
Executable files
2
Suspicious files
1
Text files
4
Unknown types
2

Dropped files

PID
Process
Filename
Type
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\RB73MZ6Y\favicon[1].ico —
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico —
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Temp\~DFAD32D03CFC103BC0.TMP —
MD5:—
SHA256:—
2948Rstrnd[1].exe\Device\HarddiskVolume2\Users\admin\AppData\Local\VirtualStore\Windows\System32\1684062.bak —
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Temp\~DFF8A8D83D6BCDB0CF.TMP —
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\RecoveryStore.{61DD18F5-F918-11E8-BAD8-5254004A04AF}.dat —
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Internet Explorer\Recovery\Active\{61DD18F6-F918-11E8-BAD8-5254004A04AF}.datbinary
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\Rstrnd[1].exeexecutable
MD5:—
SHA256:—
3104iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\History\Low\History.IE5\MSHist012018120620181207\index.datdat
MD5:—
SHA256:—
2800iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\R9ZEWH8D\Rstrnd[1].exe:Zone.Identifiertext
MD5:FBCCF14D504B7B2DBCB5A5BDA75BD93B
SHA256:EACD09517CE90D34BA562171D15AC40D302F0E691B439F91BE1B6406E25F5913
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
4
DNS requests
1
Threats
4

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3104
iexplore.exe
GET
200
42.51.40.73:280
http://42.51.40.73:280/Rstrnd.exe
CN
executable
472 Kb
suspicious
2800
iexplore.exe
GET
200
204.79.197.200:80
http://www.bing.com/favicon.ico
US
image
237 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2800
iexplore.exe
204.79.197.200:80
www.bing.com
Microsoft Corporation
US
whitelisted
2948
Rstrnd[1].exe
42.51.40.73:8080
—
Henan Telcom Union Technology Co., LTD
CN
suspicious
3104
iexplore.exe
42.51.40.73:280
—
Henan Telcom Union Technology Co., LTD
CN
suspicious

DNS requests

Domain
IP
Reputation
www.bing.com
  • 204.79.197.200
  • 13.107.21.200
whitelisted

Threats

PID
Process
Class
Message
3104
iexplore.exe
A Network Trojan was detected
ET INFO Executable Download from dotted-quad Host
3104
iexplore.exe
Potential Corporate Privacy Violation
ET POLICY PE EXE or DLL Windows file download HTTP
3104
iexplore.exe
A Network Trojan was detected
ET CURRENT_EVENTS DRIVEBY Likely Evil EXE with no referer from HFS webserver (used by Unknown EK)
3104
iexplore.exe
Misc activity
ET INFO EXE - Served Attached HTTP
No debug info
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Reports
http://42.51.40.73:280/Rstrnd.exe