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File name:

$RTNF4X3.exe

Full analysis: https://app.any.run/tasks/adf8f445-6ad6-41d9-ae49-290486f522b0
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: October 14, 2019, 08:32:41
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
installer
miner
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5:

4000806BEBEAB1BBDA1EAF0FCF9FEA27

SHA1:

7D101FEAF794CF32A15A05A547B327CDE18EB6DA

SHA256:

A9A349D2AACD7D9C1D0F149A9E2C0A908584E607719CBED37A26F6E8DEE1E718

SSDEEP:

196608:XyrPO3UDsdXp+z8+FWyGuVPq1yLanrqTr43eSG:DKsD+FWN4aC43e5

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

    • Application was dropped or rewritten from another process

      • tftp.exe (PID: 2520)
      • tftp.exe (PID: 736)
    • Changes the autorun value in the registry

      • IMG001.exe (PID: 3996)
    • Writes to a start menu file

      • IMG001.exe (PID: 3996)
    • Uses Task Scheduler to autorun other applications

      • cmd.exe (PID: 2484)
      • cmd.exe (PID: 1820)
    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 788)
    • Loads dropped or rewritten executable

      • IMG001.exe (PID: 3996)
    • Loads the Task Scheduler DLL interface

      • schtasks.exe (PID: 2816)
  • SUSPICIOUS

    • Creates files in the user directory

      • $RTNF4X3.exe (PID: 3032)
      • IMG001.exe (PID: 3996)
    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 2424)
      • cmd.exe (PID: 1972)
    • Executable content was dropped or overwritten

      • $RTNF4X3.exe (PID: 3032)
      • IMG001.exe (PID: 3996)
    • Starts CMD.EXE for commands execution

      • $RTNF4X3.exe (PID: 3032)
      • IMG001.exe (PID: 3996)
      • cmd.exe (PID: 3916)
    • Uses REG.EXE to modify Windows registry

      • cmd.exe (PID: 1916)
    • Dropped object may contain URLs of mainers pools

      • IMG001.exe (PID: 3996)
    • Removes files from Windows directory

      • schtasks.exe (PID: 2816)
    • Starts NET.EXE for network exploration

      • cmd.exe (PID: 4032)
    • Application launched itself

      • cmd.exe (PID: 3916)
    • Creates files in the Windows directory

      • schtasks.exe (PID: 2816)
  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | NSIS - Nullsoft Scriptable Install System (91.9)
.exe | Win32 Executable MS Visual C++ (generic) (3.3)
.exe | Win64 Executable (generic) (3)
.dll | Win32 Dynamic Link Library (generic) (0.7)
.exe | Win32 Executable (generic) (0.4)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: 6
OSVersion: 4
EntryPoint: 0x30de
UninitializedDataSize: 8192
InitializedDataSize: 3927040
CodeSize: 23552
LinkerVersion: 6
PEType: PE32
TimeStamp: 2009:12:05 23:51:50+01:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 05-Dec-2009 22:51:50
Detected languages:
  • English - United States

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: 0x000000D0

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 05-Dec-2009 22:51:50
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00005A2C
0x00005C00
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.44711
.rdata
0x00007000
0x00001190
0x00001200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.17976
.data
0x00009000
0x003BC798
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.61456
.ndata
0x003C6000
0x00040000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x00406000
0x0000FBD8
0x0000FC00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.02457

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.20956
716
UNKNOWN
English - United States
RT_MANIFEST
2
4.32545
9640
UNKNOWN
English - United States
RT_ICON
3
4.80027
4264
UNKNOWN
English - United States
RT_ICON
4
5.12941
3752
UNKNOWN
English - United States
RT_ICON
5
5.76716
2216
UNKNOWN
English - United States
RT_ICON
6
3.19606
1640
UNKNOWN
English - United States
RT_ICON
7
4.29006
1384
UNKNOWN
English - United States
RT_ICON
8
5.50369
1128
UNKNOWN
English - United States
RT_ICON
9
3.32968
744
UNKNOWN
English - United States
RT_ICON
10
3.42711
296
UNKNOWN
English - United States
RT_ICON

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
VERSION.dll
ole32.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
68
Monitored processes
26
Malicious processes
3
Suspicious processes
4

Behavior graph

Click at the process to see the details
drop and start start drop and start $rtnf4x3.exe cmd.exe no specs taskkill.exe no specs tskill.exe no specs tftp.exe no specs cmd.exe no specs img001.exe cmd.exe no specs taskkill.exe no specs tskill.exe no specs tftp.exe cmd.exe no specs cmd.exe cmd.exe cmd.exe no specs reg.exe no specs schtasks.exe no specs schtasks.exe no specs powercfg.exe no specs powercfg.exe no specs powercfg.exe no specs cmd.exe no specs cmd.exe no specs net.exe no specs find.exe no specs cmd.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
3032"C:\Users\admin\AppData\Local\Temp\$RTNF4X3.exe" C:\Users\admin\AppData\Local\Temp\$RTNF4X3.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
2
1972"C:\Windows\system32\cmd.exe" /c taskkill /f /im tftp.exe & tskill tftp.exeC:\Windows\system32\cmd.exe$RTNF4X3.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
1732taskkill /f /im tftp.exe C:\Windows\system32\taskkill.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
128
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2160tskill tftp.exeC:\Windows\system32\tskill.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Remote Desktop Services End Process Utility
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2520"C:\Users\admin\AppData\Local\Temp\tftp.exe" C:\Users\admin\AppData\Local\Temp\tftp.exe$RTNF4X3.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
1
2960"C:\Windows\system32\cmd.exe" /c "C:\Users\admin\AppData\Roaming\NsMiner\IMG001.exe"C:\Windows\system32\cmd.exe$RTNF4X3.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
3996C:\Users\admin\AppData\Roaming\NsMiner\IMG001.exeC:\Users\admin\AppData\Roaming\NsMiner\IMG001.exe
cmd.exe
User:
admin
Integrity Level:
MEDIUM
2424"C:\Windows\system32\cmd.exe" /c taskkill /f /im tftp.exe & tskill tftp.exeC:\Windows\system32\cmd.exeIMG001.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
3112taskkill /f /im tftp.exe C:\Windows\system32\taskkill.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
2408tskill tftp.exeC:\Windows\system32\tskill.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Remote Desktop Services End Process Utility
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Total events
801
Read events
764
Write events
37
Delete events
0

Modification events

(PID) Process:(3032) $RTNF4X3.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3032) $RTNF4X3.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(3996) IMG001.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(3996) IMG001.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(3996) IMG001.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:
Value:
C:\Users\admin\AppData\Roaming\NsMiner\IMG001.exe
(PID) Process:(736) tftp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\tftp_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(736) tftp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\tftp_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(736) tftp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\tftp_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(736) tftp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\tftp_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(736) tftp.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\tftp_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
Executable files
6
Suspicious files
2
Text files
1
Unknown types
1

Dropped files

PID
Process
Filename
Type
2816schtasks.exeC:\Windows\Tasks\UAC.job
MD5:
SHA256:
3032$RTNF4X3.exeC:\Users\admin\AppData\Roaming\NsMiner\IMG001.exeexecutable
MD5:4000806BEBEAB1BBDA1EAF0FCF9FEA27
SHA256:A9A349D2AACD7D9C1D0F149A9E2C0A908584E607719CBED37A26F6E8DEE1E718
3996IMG001.exeC:\Users\admin\AppData\Local\Temp\tftp.exeexecutable
MD5:3D766C8ED57A7A95DF35CCAC4C07D6F2
SHA256:BFEED13F8B12A1E1F7FF0B4D6E1BA68767BBFFBF5FF0195C3F44C3B30DEABA33
3032$RTNF4X3.exeC:\Users\admin\AppData\Local\Temp\tftp.exeexecutable
MD5:3D766C8ED57A7A95DF35CCAC4C07D6F2
SHA256:BFEED13F8B12A1E1F7FF0B4D6E1BA68767BBFFBF5FF0195C3F44C3B30DEABA33
3996IMG001.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Run.lnklnk
MD5:56EF8789DF96E078C72E9D56E649AEA0
SHA256:1457BF9C6F6962665022D25E209BEB9511AFA54CF48194BCAEE9F979D0FE232B
3032$RTNF4X3.exeC:\Users\admin\AppData\Local\Temp\info.zipcompressed
MD5:C3C561C20E48169F4906C6B0B135984B
SHA256:B914ABC696286A639A847D2E3A4A36FF682F30A87B08C4FFC61F2E0CF5E7EC5F
3996IMG001.exeC:\Users\admin\AppData\Roaming\NsMiner\NsCpuCNMiner64.exeexecutable
MD5:EEDB9D86AE8ABC65FA7AC7C6323D4E8F
SHA256:D0326F0DDCE4C00F93682E3A6F55A3125F6387E959E9ED6C5E5584E78E737078
3996IMG001.exeC:\Users\admin\AppData\Roaming\NsMiner\pools.txttext
MD5:5137876455F2FD0C032CEED6FDBE49CB
SHA256:8689FD11C63754AEABB202D7E1DB3E5FE896F4E4E3597D4BFED58950F3110BB9
3996IMG001.exeC:\Users\admin\AppData\Local\Temp\nshFCA7.tmp\inetc.dllexecutable
MD5:D7A3FA6A6C738B4A3C40D5602AF20B08
SHA256:67EFF17C53A78C8EC9A28F392B9BB93DF3E74F96F6ECD87A333A482C36546B3E
3996IMG001.exeC:\Users\admin\AppData\Local\Temp\info.zipcompressed
MD5:C3C561C20E48169F4906C6B0B135984B
SHA256:B914ABC696286A639A847D2E3A4A36FF682F30A87B08C4FFC61F2E0CF5E7EC5F
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2 034
DNS requests
1
Threats
0

HTTP requests

No 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
736
tftp.exe
172.94.246.0:21
Cogent Communications
US
unknown
736
tftp.exe
139.186.229.0:21
CN
unknown
736
tftp.exe
172.237.167.0:21
Akamai Technologies, Inc.
US
unknown
736
tftp.exe
21.113.85.0:21
US
unknown
736
tftp.exe
211.10.15.0:21
Yahoo Japan Corporation
JP
unknown
736
tftp.exe
2.104.192.0:21
Tele Danmark
DK
unknown
736
tftp.exe
56.3.201.0:21
US
unknown
736
tftp.exe
218.60.220.0:21
CHINA UNICOM China169 Backbone
CN
unknown
736
tftp.exe
40.116.153.0:21
Microsoft Corporation
US
unknown
736
tftp.exe
17.143.67.0:21
Apple Inc.
US
unknown

DNS requests

Domain
IP
Reputation
stafftest.ru
  • 255.255.0.0
unknown

Threats

PID
Process
Class
Message
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
A Network Trojan was detected
AV TROJAN Observed DNS Query to Suspicious Domain (stafftest[.]ru)
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
736
tftp.exe
Generic Protocol Command Decode
SURICATA Applayer Detect protocol only one direction
No debug info