Malware analysis EXIM INQUIRY_4715680.z Malicious activity

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File name:	EXIM INQUIRY_4715680.z
Full analysis:	https://app.any.run/tasks/131dc65c-a025-4c9a-8a12-2f5c1967cfb2
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. 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:	July 17, 2019, 04:04:32
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	rat nanocore
Indicators:
MIME:	application/zip
File info:	Zip archive data, at least v2.0 to extract
MD5:	67061B1B8615422E59E9597D7C9C724A
SHA1:	FAF4BDBAE96403478C0FEA3E524D5ACBD0DE6F04
SHA256:	0E6E93A8DACA854088BA150337B3421E07D34FC662EC262214E02A57F321CF9B
SSDEEP:	6144:g1Nx5tnXXwHx3/mxTbLmJFF7Izci2tFQ1SExU46jmxuolczuA8v5f47nnv2IBa/4:If5tXXixPmx3iJFF7mL+JjmwHf8vutBl

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.

Launch configuration

Task duration:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (75.0.3770.100)
Google Update Helper (1.3.34.7)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.7.2 (4.7.03062)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.21.27702 (14.21.27702.2)
Microsoft Visual C++ 2019 X86 Additional Runtime - 14.21.27702 (14.21.27702)
Microsoft Visual C++ 2019 X86 Minimum Runtime - 14.21.27702 (14.21.27702)
Mozilla Firefox 67.0.4 (x86 en-US) (67.0.4)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
Update for Microsoft .NET Framework 4.7.2 (KB4087364) (1)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB4019990
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Application was dropped or rewritten from another process
  - EXIM INQUIRY_4715680.exe (PID: 2656)
  - RegAsm.exe (PID: 2384)
- Changes the autorun value in the registry
  - RegAsm.exe (PID: 2384)
- NanoCore was detected
  - RegAsm.exe (PID: 2384)
SUSPICIOUS
- Executable content was dropped or overwritten
  - WinRAR.exe (PID: 2860)
  - RegAsm.exe (PID: 2384)
- Creates files in the user directory
  - RegAsm.exe (PID: 2384)
INFO
- Manual execution by user
  - EXIM INQUIRY_4715680.exe (PID: 2656)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.zip	\|	ZIP compressed archive (100)

EXIF

ZIP

ZipRequiredVersion:	20
ZipBitFlag:	-
ZipCompression:	Deflated
ZipModifyDate:	2019:07:16 22:40:17
ZipCRC:	0xea360ccb
ZipCompressedSize:	392313
ZipUncompressedSize:	923648
ZipFileName:	EXIM INQUIRY_4715680.exe

No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2384

"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe

EXIM INQUIRY_4715680.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft .NET Assembly Registration Utility

Exit code:

Version:

2.0.50727.5420 (Win7SP1.050727-5400)

Modules

Images
c:\windows\microsoft.net\framework\v2.0.50727\regasm.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\apppatch\acgenral.dll
c:\windows\system32\sechost.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll

2656

"C:\Users\admin\Desktop\EXIM INQUIRY_4715680.exe"

C:\Users\admin\Desktop\EXIM INQUIRY_4715680.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\desktop\exim inquiry_4715680.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\mscoree.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\microsoft.net\framework\v4.0.30319\mscoreei.dll

2860

"C:\Program Files\WinRAR\WinRAR.exe" "C:\Users\admin\AppData\Local\Temp\EXIM INQUIRY_4715680.z.zip"

C:\Program Files\WinRAR\WinRAR.exe

explorer.exe

User:

admin

Company:

Alexander Roshal

Integrity Level:

MEDIUM

Description:

WinRAR archiver

Exit code:

Version:

5.60.0

Modules

Images
c:\program files\winrar\winrar.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\shlwapi.dll

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Total events

450

Read events

439

Write events

Delete events

Modification events


(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtBMP
Value:
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\Interface\Themes
Operation:	write	Name:	ShellExtIcon
Value:
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CLASSES_ROOT\Local Settings\MuiCache\70\52C64B7E
Operation:	write	Name:	LanguageList
Value: en-US
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\ArcHistory
Operation:	write	Name:	0
Value: C:\Users\admin\AppData\Local\Temp\EXIM INQUIRY_4715680.z.zip
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	name
Value: 120
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	size
Value: 80
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	type
Value: 120
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\FileList\FileColumnWidths
Operation:	write	Name:	mtime
Value: 100
(PID) Process:	(2860) WinRAR.exe	Key:	HKEY_CURRENT_USER\Software\WinRAR\DialogEditHistory\ExtrPath
Operation:	write	Name:	0
Value: C:\Users\admin\Desktop
(PID) Process:	(2384) RegAsm.exe	Key:	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	TCP Monitor
Value: C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2860	WinRAR.exe	C:\Users\admin\Desktop\EXIM INQUIRY_4715680.exe		executable
		MD5:—	SHA256:—
2384	RegAsm.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\run.dat		text
		MD5:—	SHA256:—
2384	RegAsm.exe	C:\Users\admin\AppData\Roaming\90059C37-1320-41A4-B58D-2B75A9850D2F\TCP Monitor\tcpmon.exe		executable
		MD5:278EDBD499374BF73621F8C1F969D894	SHA256:C6999B9F79932C3B4F1C461A69D9DC8DC301D6A155ABC33EFE1B6E9E4A038391

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2384	RegAsm.exe	8.8.8.8:53	—	Google Inc.	US	malicious
—	—	8.8.8.8:53	—	Google Inc.	US	malicious
2384	RegAsm.exe	197.210.52.210:2382	kalakuta.ddns.net	MTN NIGERIA Communication limited	NG	unknown
2384	RegAsm.exe	160.202.163.200:2382	—	Korea Telecom	KR	malicious

DNS requests

Domain	IP	Reputation
kalakuta.ddns.net	197.210.52.210	unknown

Threats

No threats detected

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No debug info

General Info

EXIM INQUIRY_4715680.z

67061B1B8615422E59E9597D7C9C724A

FAF4BDBAE96403478C0FEA3E524D5ACBD0DE6F04

0E6E93A8DACA854088BA150337B3421E07D34FC662EC262214E02A57F321CF9B

6144:g1Nx5tnXXwHx3/mxTbLmJFF7Izci2tFQ1SExU46jmxuolczuA8v5f47nnv2IBa/4:If5tXXixPmx3iJFF7mL+JjmwHf8vutBl

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

Changes the autorun value in the registry

NanoCore was detected

SUSPICIOUS

Executable content was dropped or overwritten

Creates files in the user directory

INFO

Manual execution by user

Malware configuration

Static information

TRiD

EXIF

ZIP

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings