MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b60eef7b62c70f68311f80199578144694445d28286c7c87e7f79ace2875580. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


NanoCore


Vendor detections: 10


Intelligence 10 IOCs YARA 7 File information Comments
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SHA256 hash: 5b60eef7b62c70f68311f80199578144694445d28286c7c87e7f79ace2875580
SHA3-384 hash: b87904d7ea53f5efae818f35b983c46b77ba65660f57cb9e4c45ec8dc5149f8b3bf38cc9ba3934da80222b1c0ce69763
SHA1 hash: 2881b03bd6a77dc83774e29a93746b52dbb5f568
MD5 hash: 5e86ec60bc329db96be8d476537a554c
humanhash: emma-hydrogen-pluto-indigo
File name:DHL_document1102202068090891.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:61'312 bytes
First seen:2021-02-25 10:02:17 UTC
Last seen:2021-02-26 02:16:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 768:942TTm1gTCbgfWalSZXHIWSjSjSjSjSjSjSGAo+UHHyh:dm1gTvfWtZXoWSjSjSjSjSjSjSGA3GH
Threatray 1'663 similar samples on MalwareBazaar
TLSH 39534A123AAB3C18E0773D732E9765D949FFF6613A2DE13A2A8403878563B45CF50E25
Reporter abuse_ch
Tags:CHN DHL exe geo NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: [193.239.147.27]
Sending IP: 193.239.147.27
From: China DHL Express <dhlcnsendreq6@dhl.com>
Subject: DHL送货/到达/地址确认
Attachment: DHL_document1102202068090891.zip (contains "DHL_document1102202068090891.exe")

NanoCore RAT C2:
noancore.linkpc.net

Intelligence

File Origin
# of uploads :
4
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHL_document1102202068090891.exe
Verdict:
Malicious activity
Analysis date:
2021-02-25 10:08:24 UTC
Tags:
trojan rat nanocore
Link:
https://app.any.run/tasks/b749dcf2-98d5-41ba-a8b0-af3822d87ae0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/119161/
Detection(s):
SecuriteInfo.com.Win32.4120.18998.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Launching a service
Sending a UDP request
Deleting a recently created file
Running batch commands
Adding an access-denied ACE
Launching the default Windows debugger (dwwin.exe)
Creating a file in the %AppData% subdirectories
Connection attempt
Creating a window
Setting a single autorun event
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
Unauthorized injection to a system process
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/618512
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to hide a thread from the debugger
Creates an autostart registry key pointing to binary in C:\Windows
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 358257 Sample: DHL_document1102202068090891.exe Startdate: 25/02/2021 Architecture: WINDOWS Score: 100 56 noancore.linkpc.net 2->56 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 Multi AV Scanner detection for submitted file 2->76 78 12 other signatures 2->78 8 DHL_document1102202068090891.exe 23 9 2->8         started        13 explorer.exe 2->13         started        15 explorer.exe 2->15         started        17 12 other processes 2->17 signatures3 process4 dnsIp5 68 coroloboxorozor.com 172.67.172.17, 49716, 49727, 80 CLOUDFLARENETUS United States 8->68 52 C:\Windows\Cursors\...\svchost.exe, PE32 8->52 dropped 54 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 8->54 dropped 80 Creates an autostart registry key pointing to binary in C:\Windows 8->80 82 Writes to foreign memory regions 8->82 84 Adds a directory exclusion to Windows Defender 8->84 90 4 other signatures 8->90 19 CasPol.exe 8->19         started        23 AdvancedRun.exe 1 8->23         started        25 cmd.exe 8->25         started        36 3 other processes 8->36 27 svchost.exe 13->27         started        86 Drops executables to the windows directory (C:\Windows) and starts them 15->86 30 svchost.exe 15->30         started        70 127.0.0.1 unknown unknown 17->70 88 Changes security center settings (notifications, updates, antivirus, firewall) 17->88 32 MpCmdRun.exe 17->32         started        34 WerFault.exe 17->34         started        file6 signatures7 process8 dnsIp9 58 noancore.linkpc.net 185.157.160.229, 6700 OBE-EUROPEObenetworkEuropeSE Sweden 19->58 50 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->50 dropped 60 192.168.2.1 unknown unknown 23->60 38 AdvancedRun.exe 23->38         started        40 conhost.exe 25->40         started        42 timeout.exe 25->42         started        62 coroloboxorozor.com 27->62 92 System process connects to network (likely due to code injection or exploit) 27->92 94 Multi AV Scanner detection for dropped file 27->94 96 Machine Learning detection for dropped file 27->96 64 104.21.71.230, 49731, 80 CLOUDFLARENETUS United States 30->64 66 coroloboxorozor.com 30->66 44 conhost.exe 32->44         started        46 conhost.exe 36->46         started        48 conhost.exe 36->48         started        file10 signatures11 process12
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5b60eef7b62c70f68311f80199578144694445d28286c7c87e7f79ace2875580/
Threat name:
ByteCode-MSIL.Downloader.BaseLoader
Create hunting rule
Status:
Malicious
First seen:
2021-02-25 07:45:00 UTC
AV detection:
14 of 43 (32.56%)
Threat level:
  3/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lnqo555wfrypnayr7aazsv4biruuirosqkdmpsd6p542zyuhkwaa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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15f0aac31d57cff82f66f71e05e8a186752b8d93ff94c0d1e7c88d11f0c0b55a
NanoCore
258856f05819789b47e0bed58b1df479976a355cd30b953b23f9e2f5d286578a
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2acf6c2398a12dc97ff2ceec4f348ed6338c4aafb2dcfeb24856cf8526d12a9d
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4f0035201ba7a3a536727862b8ac8dbf389038c5af1674ff7a982190fed1e30b
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644a0403a3c8254a3846b8c07aa7fdeb2cfe21aa5630ca3100949869f60ae407
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6a4ecef563225ed9892ff403374d704be5e3b4242ae9f08d624325e83fd22276
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db591a08743176655e567ddffcbbd79b9e2e31feadc1feb54a0200296a93d53d
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e26e07749118e8284c28e50553c62bdbe327234b801ffdf2eedb8663444aa459
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f3ac633354efc183e1705dd9e042d39b62208735f6f9e83534fb21c9f32b5d70
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f4bf592fde78af7ed0b06166ac8265d7b65a2457b9a61f12c2e3a4fad641ac19
NanoCore
+ 1'653 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210225-me95xbf8w2/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
NanoCore
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
185.157.160.229:6700
noancore.linkpc.net:6700
Unpacked files
SH256 hash:
5b60eef7b62c70f68311f80199578144694445d28286c7c87e7f79ace2875580
MD5 hash:
5e86ec60bc329db96be8d476537a554c
SHA1 hash:
2881b03bd6a77dc83774e29a93746b52dbb5f568
Link:
https://www.unpac.me/results/599b3f2b-ad85-4aa7-b379-653c54c2c7ec/
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:win_nanocore_w0
Create hunting rule
Author: Kevin Breen <kevin@techanarchy.net>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

zip 5639019875993d78a20c90b60c31ca2c3356f6868980f126022b719eb5852b53

NanoCore

Executable exe 5b60eef7b62c70f68311f80199578144694445d28286c7c87e7f79ace2875580

(this sample)

  
Dropped by
MD5 ad7907e5a3250af037d97befad7d964b
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/119161/
  
Dropped by
SHA256 5639019875993d78a20c90b60c31ca2c3356f6868980f126022b719eb5852b53

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