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File name:

dywan.exe

Full analysis: https://app.any.run/tasks/6afce6d9-3261-457b-9c05-a2175978b244
Verdict: Malicious activity
Threats:

NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website.

Analysis date: March 31, 2020, 08:52:29
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
rat
nanocore
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5:

0BA0DB9A9E13AC82E4CBE330B757CC8C

SHA1:

45A95C25C589186E646ADF4C685BD7D92610F176

SHA256:

29BE7F749DFA7FF736040540EBDC537E3A02B075F0095B5DE7C67B56FB15DB32

SSDEEP:

3072:gzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIdGrY+b43qULQXto3b6v8Ep1vc:gLV6Bta6dtJmakIM5//ULB3gFy

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

    • Changes the autorun value in the registry

      • dywan.exe (PID: 3976)
    • NANOCORE was detected

      • dywan.exe (PID: 3976)
    • Connects to CnC server

      • dywan.exe (PID: 3976)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • dywan.exe (PID: 3976)
    • Connects to unusual port

      • dywan.exe (PID: 3976)
    • Creates files in the user directory

      • dywan.exe (PID: 3976)
  • 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 | Generic CIL Executable (.NET, Mono, etc.) (63.1)
.exe | Win64 Executable (generic) (23.8)
.dll | Win32 Dynamic Link Library (generic) (5.6)
.exe | Win32 Executable (generic) (3.8)
.exe | Generic Win/DOS Executable (1.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2015:02:22 01:49:37+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 116736
InitializedDataSize: 90112
UninitializedDataSize: -
EntryPoint: 0x1e792
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 22-Feb-2015 00:49:37

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: 0x00000080

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 22-Feb-2015 00:49:37
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

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00002000
0x0001C798
0x0001C800
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.59808
.reloc
0x00020000
0x0000000C
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.10191
.rsrc
0x00022000
0x00015D90
0x00015E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.99786

Resources

Title
Entropy
Size
Codepage
Language
Type
1
7.9979
89400
Latin 1 / Western European
UNKNOWN
RT_RCDATA

Imports

mscoree.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
34
Monitored processes
1
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #NANOCORE dywan.exe

Process information

PID
CMD
Path
Indicators
Parent process
3976"C:\Users\admin\AppData\Local\Temp\dywan.exe" C:\Users\admin\AppData\Local\Temp\dywan.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Total events
22
Read events
21
Write events
1
Delete events
0

Modification events

(PID) Process:(3976) dywan.exeKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:TCP Monitor
Value:
C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe
Executable files
1
Suspicious files
3
Text files
0
Unknown types
1

Dropped files

PID
Process
Filename
Type
3976dywan.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\catalog.datbs
MD5:DDC0B44698EC69DD76AB74EA08BC6806
SHA256:1E3FF828BA7546968A46FD5A99F32338345E1237733B2CD5400E921D6DCD62AA
3976dywan.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.datbinary
MD5:45783A109EAC16DCE577E298032EDB0F
SHA256:43DCD7F9857F680147535A4B5F4945173BC6476A98A66A9643B9EB7E0FAFCC40
3976dywan.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\storage.datbinary
MD5:0B5A1FF4CD842FF9592214C64F241BD3
SHA256:5DAE4DA017EAF0552A5A6525DB787BC1BC0434ABBE89E56113DBEC2276998DE9
3976dywan.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exeexecutable
MD5:0BA0DB9A9E13AC82E4CBE330B757CC8C
SHA256:29BE7F749DFA7FF736040540EBDC537E3A02B075F0095B5DE7C67B56FB15DB32
3976dywan.exeC:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\settings.binbinary
MD5:4E5E92E2369688041CC82EF9650EDED2
SHA256:F8098A6290118F2944B9E7C842BD014377D45844379F863B00D54515A8A64B48
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
1
DNS requests
0
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
3976
dywan.exe
154.16.93.169:1338
NetStack-AS
ZA
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
3976
dywan.exe
A Network Trojan was detected
ET TROJAN Possible NanoCore C2 60B
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
3976
dywan.exe
A Network Trojan was detected
REMOTE [PTsecurity] NanoCore.RAT
26 ETPRO signatures available at the full report
No debug info