File name:

Desk.exe

Full analysis: https://app.any.run/tasks/bd3fecad-e6ce-4b01-addc-b8e60ff6bf43
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.

Malware Trends Tracker     >>>
Analysis date: November 28, 2019, 07:56:23
OS: Windows 7 Professional Service Pack 1 (build: 7601, 64 bit)
Tags:
trojan
rat
remcos
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
MD5:

8DD7E1DBE3E91B3AF1A1E674F5C4B20E

SHA1:

010C45D28D788BEFB997664110A2FFAD1BA12397

SHA256:

30033B13E012E0B039B4F9E392FCAAEA5A78D910EC2AC88CF6BA0F51EAA7C9CD

SSDEEP:

6144:55lz/Q6ugBngOX/prXKNZaHaQTi87nqWRoPKFhGzhfUtY0:D26uyBrXKNcxW87TRoi4C60

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

    • Loads dropped or rewritten executable

      • Desk.exe (PID: 2476)

    • Changes settings of System certificates

      • explorer.exe (PID: 1936)

    • REMCOS was detected

      • notepad.exe (PID: 2284)

    • Connects to CnC server

      • notepad.exe (PID: 2284)

  • SUSPICIOUS

    • Reads the machine GUID from the registry

      • explorer.exe (PID: 1936)

    • Creates files in the user directory

      • Desk.exe (PID: 2476)
      • cmd.exe (PID: 2444)

    • Executable content was dropped or overwritten

      • cmd.exe (PID: 2444)
      • Desk.exe (PID: 2476)

    • Starts CMD.EXE for commands execution

      • notepad.exe (PID: 2284)

  • INFO

    • Reads settings of System Certificates

      • explorer.exe (PID: 1936)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:12:15 23:24:27+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 25600
InitializedDataSize: 141824
UninitializedDataSize: 2048
EntryPoint: 0x3359
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 6.4.1.6
ProductVersionNumber: 6.4.1.6
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: Neutral
CharacterSet: Unicode
FileVersion: 1.1.12.7
ProductVersion: 6.4.1.6

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 15-Dec-2018 22:24:27
Detected languages:
  • English - United States
FileVersion: 1.1.12.7
ProductVersion: 6.4.1.6

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: 0x000000D8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 15-Dec-2018 22:24:27
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
0x000062A5
0x00006400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.43142
.rdata
0x00008000
0x00001396
0x00001400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.15971
.data
0x0000A000
0x00020318
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
3.90464
.ndata
0x0002B000
0x00021000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x0004C000
0x00005998
0x00005A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
3.52149

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.29611
1059
UNKNOWN
English - United States
RT_MANIFEST
2
3.75387
4264
UNKNOWN
English - United States
RT_ICON
3
2.70736
2216
UNKNOWN
English - United States
RT_ICON
4
0
1384
UNKNOWN
English - United States
RT_ICON
5
0
1128
UNKNOWN
English - United States
RT_ICON
6
0
744
UNKNOWN
English - United States
RT_ICON
7
0
296
UNKNOWN
English - United States
RT_ICON
103
3.10541
104
UNKNOWN
English - United States
RT_GROUP_ICON
105
2.73893
514
UNKNOWN
English - United States
RT_DIALOG
106
2.91148
248
UNKNOWN
English - United States
RT_DIALOG

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
ole32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
39
Monitored processes
4
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
start desk.exe #REMCOS notepad.exe explorer.exe cmd.exe

Process information

PID
CMD
Path
Indicators
Parent process
1936C:\Windows\Explorer.EXEC:\Windows\explorer.exe
—
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\winanr.dll
c:\windows\system32\mswsock.dll
c:\windows\system32\wshtcpip.dll
c:\windows\explorer.exe
c:\windows\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
2284"C:\Windows\system32\notepad.exe"C:\Windows\SysWOW64\notepad.exe
Desk.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Notepad
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\syswow64\notepad.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
2444C:\Windows\system32\cmd.exe /c "COPY /Y /B "C:\Users\admin\Desktop\Desk.exe" "C:\Users\admin\AppData\Roaming\Adobe\Flash Player\AssetCache\ksetup.exe""C:\Windows\SysWOW64\cmd.exe
notepad.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)
Modules
Images
c:\windows\syswow64\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\system32\kernel32.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
2476"C:\Users\admin\Desktop\Desk.exe" C:\Users\admin\Desktop\Desk.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Version:
1.1.12.7
Modules
Images
c:\users\admin\desktop\desk.exe
c:\systemroot\system32\ntdll.dll
c:\systemroot\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\user32.dll
c:\windows\syswow64\kernelbase.dll
Total events
8 312
Read events
4 507
Write events
3 805
Delete events
0

Modification events

(PID) Process:(2476) Desk.exeKey:HKEY_CURRENT_USER\megajoulebonbons
Operation:writeName:NoModify
Value:
1
(PID) Process:(1936) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12F\52C64B7E
Operation:writeName:LanguageList
Value:
en-US
(PID) Process:(1936) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12F\52C64B7E
Operation:writeName:@sendmail.dll,-21
Value:
Desktop (create shortcut)
(PID) Process:(1936) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12F\52C64B7E
Operation:writeName:@zipfldr.dll,-10148
Value:
Compressed (zipped) folder
(PID) Process:(1936) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12F\52C64B7E
Operation:writeName:@sendmail.dll,-4
Value:
Mail recipient
(PID) Process:(1936) explorer.exeKey:HKEY_CLASSES_ROOT\Local Settings\MuiCache\12F\52C64B7E
Operation:writeName:@C:\Windows\system32\FXSRESM.dll,-120
Value:
Fax recipient
(PID) Process:(1936) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached
Operation:writeName:{B41DB860-64E4-11D2-9906-E49FADC173CA} {000214E9-0000-0000-C000-000000000046} 0xFFFF
Value:
0100000000000000C8CDD767C1A5D501
(PID) Process:(1936) explorer.exeKey:HKEY_CURRENT_USER\Software\Microsoft\SystemCertificates\CA\Certificates\EAB040689A0D805B5D6FD654FC168CFF00B78BE3
Operation:writeName:Blob
Value:
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
(PID) Process:(2284) notepad.exeKey:HKEY_CURRENT_USER\Software\Wkkifrt-91OCVE
Operation:writeName:licence
Value:
A99DC8F6F6CAAA5281B6A0AC62266FBC
Executable files
4
Suspicious files
5
Text files
5
Unknown types
3

Dropped files

PID
Process
Filename
Type
2476Desk.exeC:\Users\admin\AppData\Local\Temp\Petrochemistrybinary
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\stty.1text
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\MicrosoftWindowsCEForms.dllexecutable
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\45.opends60.dllbinary
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\perswhtborder2mtl.gifimage
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\boxes.ttitext
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\Constants.vbtext
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Local\Temp\bravado.dllexecutable
MD5:—
SHA256:—
1936explorer.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E0968A1E3A40D2582E7FD463BAEB59CDder
MD5:—
SHA256:—
2476Desk.exeC:\Users\admin\AppData\Roaming\logo\publish\uid\secret\en-variant2.cwl.gzcompressed
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
2
Threats
26

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
1936
explorer.exe
GET
200
91.199.212.52:80
http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt
GB
der
1.37 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2284
notepad.exe
185.140.53.108:222
iuvassa.duckdns.org
myLoc managed IT AG
DE
malicious
1936
explorer.exe
91.199.212.52:80
crt.usertrust.com
Comodo CA Ltd
GB
suspicious

DNS requests

Domain
IP
Reputation
crt.usertrust.com
  • 91.199.212.52
whitelisted
iuvassa.duckdns.org
  • 185.140.53.108
malicious

Threats

PID
Process
Class
Message
332
svchost.exe
Misc activity
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
2284
notepad.exe
A Network Trojan was detected
ET TROJAN Remcos RAT Checkin 23
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Backdoor.Win32/Remcos RAT connection
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Remcos RAT
2284
notepad.exe
A Network Trojan was detected
REMOTE [PTsecurity] Win32/Remcos RAT Checkin
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Reports
Desk.exe