File name:

Backdoor.exe

Full analysis: https://app.any.run/tasks/9f7a9cb8-e6ea-4e15-abe4-370feeffe7ec
Verdict: Malicious activity
Threats:

Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links.

Analysis date: July 31, 2020, 19:44:27
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
rat
remcos
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

81EB11DD4EA3BCE73E9760D606478DCE

SHA1:

34C5B6F18FE96FB373E7DBC926B7A39AA58A0246

SHA256:

8ADE5D46D42C662E9E340CFE60DC45F77610E2FC7F08D7A7D60E37B7CA99CE83

SSDEEP:

3072:sr85CQpsF1TbPzuMsIFSHNThy+JP/P6vrNhzYTGWVvJ8f2F:k9Q2F13jsIFSHNT7P/P6zNhzOv2fm

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

      • Backdoor.exe (PID: 1532)
    • REMCOS was detected

      • Backdoor.exe (PID: 1532)
      • iexplore.exe (PID: 2464)
    • Connects to CnC server

      • iexplore.exe (PID: 2464)
  • SUSPICIOUS

    • Starts Internet Explorer

      • Backdoor.exe (PID: 1532)
    • Executable content was dropped or overwritten

      • Backdoor.exe (PID: 1096)
  • 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 | Win32 Executable Borland Delphi 6 (89.6)
.scr | Windows screen saver (4.4)
.dll | Win32 Dynamic Link Library (generic) (2.2)
.exe | Win32 Executable (generic) (1.5)
.exe | Win16/32 Executable Delphi generic (0.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 1992:06:20 00:22:17+02:00
PEType: PE32
LinkerVersion: 2.25
CodeSize: 29696
InitializedDataSize: 10752
UninitializedDataSize: -
EntryPoint: 0x80e4
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 19-Jun-1992 22:22:17
Detected languages:
  • Russian - Russia

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0050
Pages in file: 0x0002
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x000F
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x001A
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x00000100

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 8
Time date stamp: 19-Jun-1992 22:22:17
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_BYTES_REVERSED_HI
  • IMAGE_FILE_BYTES_REVERSED_LO
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
CODE
0x00001000
0x0000722C
0x00007400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.51167
DATA
0x00009000
0x00000218
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
3.1517
BSS
0x0000A000
0x0000A899
0x00000000
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.idata
0x00015000
0x00000864
0x00000A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.17386
.tls
0x00016000
0x00000008
0x00000000
IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rdata
0x00017000
0x00000018
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED
0.20692
.reloc
0x00018000
0x000005CC
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED
6.44309
.rsrc
0x00019000
0x00001400
0x00001400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_SHARED
5.52474

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.38094
4264
UNKNOWN
Russian - Russia
RT_ICON
DVCLAL
4
16
UNKNOWN
UNKNOWN
RT_RCDATA
PACKAGEINFO
6.90278
172
UNKNOWN
UNKNOWN
RT_RCDATA
MAINICON
1.7815
20
UNKNOWN
Russian - Russia
RT_GROUP_ICON

Imports

advapi32.dll
gdi32.dll
kernel32.dll
oleaut32.dll
shell32.dll
user32.dll
No data.
screenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
36
Monitored processes
3
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start backdoor.exe #REMCOS backdoor.exe no specs #REMCOS iexplore.exe

Process information

PID
CMD
Path
Indicators
Parent process
1096"C:\Users\admin\AppData\Local\Temp\Backdoor.exe" C:\Users\admin\AppData\Local\Temp\Backdoor.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\backdoor.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
1532"C:\Users\admin\AppData\Local\Temp\3582-490\Backdoor.exe" C:\Users\admin\AppData\Local\Temp\3582-490\Backdoor.exe
Backdoor.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
3
Modules
Images
c:\users\admin\appdata\local\temp\3582-490\backdoor.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
2464"C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe
Backdoor.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Exit code:
0
Version:
11.00.9600.16428 (winblue_gdr.131013-1700)
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\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
Total events
339
Read events
332
Write events
6
Delete events
1

Modification events

(PID) Process:(1096) Backdoor.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(1096) Backdoor.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(1532) Backdoor.exeKey:HKEY_CURRENT_USER\Software\remcos_csftianspvzinzx
Operation:writeName:EXEpath
Value:
ÎQÕ©Öá+IJª‰0ñ„ˆ í&ƒzÒ«Ý“³¼T¤¤gD.™Ÿ¶ÿ³Ø•áÔ7ì@Ö¨k?
(PID) Process:(1532) Backdoor.exeKey:HKEY_CURRENT_USER\Software\remcos_csftianspvzinzx
Operation:writeName:Inj
Value:
1
(PID) Process:(2464) iexplore.exeKey:HKEY_CURRENT_USER\Software\remcos_csftianspvzinzx
Operation:delete valueName:Inj
Value:
1
Executable files
1
Suspicious files
0
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
1096Backdoor.exeC:\Users\admin\AppData\Local\Temp\3582-490\Backdoor.exeexecutable
MD5:
SHA256:
1096Backdoor.exeC:\Users\admin\AppData\Local\Temp\tmp5023.tmptext
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
2
DNS requests
0
Threats
20

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
2464
iexplore.exe
193.161.193.99:36267
OOO Bitree Networks
RU
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
2464
iexplore.exe
A Network Trojan was detected
ET TROJAN Remcos RAT Checkin 23
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Backdoor.Win32/Remcos RAT connection
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2464
iexplore.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
No debug info