MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293
SHA3-384 hash: af73988d8808de3255034908d24bcc09bee1c3015fbbca6186d60ea2056fd77685d63f3c80df260177fd78ef888c4dac
SHA1 hash: f79b2c4b3b9c4011cd90784320b281d1b192b1e5
MD5 hash: f775f38a9f3a0dfe8dc4d3012a0a5e8f
humanhash: beer-floor-winner-equal
File name:DHL AWB TRACKING DETAIL.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:523'776 bytes
First seen:2020-12-08 07:50:24 UTC
Last seen:2020-12-08 09:31:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:K0wODQtk7gaPqbLXb2wNRUiP8k3W9IQqFChhD6IvDcrMrcrJPi4R2KaxL/E78PZO:+jeejP8kVQhk4rOPHSL/E7K/mP/pljb
Threatray 1'388 similar samples on MalwareBazaar
TLSH DBB40232420A5FAFD73E0FBB854425508EB4E42BBA16F39CBF8054D506E77948D91EB2
Reporter abuse_ch
Tags:DHL exe NanoCore nVpn RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: mail.aretering.ga
Sending IP: 188.225.58.123
From: DHL DELIVERY OFFICE <info@aretering.ga>
Subject: COMMERCIAL INVOICE AND BILL OF LANDING... 12/08/2020
Attachment: DHL AWB TRACKING DETAIL.PDF.z (contains "DHL AWB TRACKING DETAIL.exe")

NanoCore RAT C2:
chinomso.duckdns.org:7688 (194.5.98.56)

Pointing to nVpn:

% Information related to '194.5.98.0 - 194.5.98.255'

% Abuse contact for '194.5.98.0 - 194.5.98.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.98.0 - 194.5.98.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-NO
country: NO
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-04-26T16:42:54Z
last-modified: 2020-10-07T21:35:29Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
191
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/107183/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.14.897.14243.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Gathering data
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/557683
Signature
.NET source code contains potential unpacker
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 327939 Sample: DHL AWB TRACKING DETAIL.exe Startdate: 08/12/2020 Architecture: WINDOWS Score: 100 45 chinomso.duckdns.org 2->45 47 g.msn.com 2->47 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Sigma detected: Scheduled temp file as task from temp location 2->55 57 9 other signatures 2->57 9 DHL AWB TRACKING DETAIL.exe 3 2->9         started        11 dhcpmon.exe 2 2->11         started        14 DHL AWB TRACKING DETAIL.exe 2 2->14         started        16 dhcpmon.exe 3 2->16         started        signatures3 process4 signatures5 18 DHL AWB TRACKING DETAIL.exe 1 15 9->18         started        63 Injects a PE file into a foreign processes 11->63 23 dhcpmon.exe 11->23         started        25 DHL AWB TRACKING DETAIL.exe 14->25         started        27 dhcpmon.exe 16->27         started        process6 dnsIp7 49 chinomso.duckdns.org 194.5.98.56, 49731, 7688 DANILENKODE Netherlands 18->49 37 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->39 dropped 41 C:\Users\user\AppData\Local\...\tmp1B5C.tmp, XML 18->41 dropped 43 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->43 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 29 schtasks.exe 1 18->29         started        31 schtasks.exe 1 18->31         started        file8 61 Uses dynamic DNS services 49->61 signatures9 process10 process11 33 conhost.exe 29->33         started        35 conhost.exe 31->35         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-08 07:51:06 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6hxope5ghmtmhmbr7kwsf4k4cbwk5wqlsgaa56vv2paqpemamkjq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'378 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/201208-lmrxssbb2j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NanoCore
Malware Config
C2 Extraction:
chinomso.duckdns.org:7688
Unpacked files
SH256 hash:
f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293
MD5 hash:
f775f38a9f3a0dfe8dc4d3012a0a5e8f
SHA1 hash:
f79b2c4b3b9c4011cd90784320b281d1b192b1e5
Link:
https://www.unpac.me/results/e5aea989-ae8f-4cac-8703-b2cbc30d4eaf/
SH256 hash:
456631cf84a56efd5adbf77d83fbcd374f48e732842e8ccbdadf0fc309991d81
MD5 hash:
4f75fa5f9c49c2f2327d367ba155bfcb
SHA1 hash:
2e9a72e6179c458b32b00204ac2bcdfc43060ae0
Link:
https://www.unpac.me/results/e5aea989-ae8f-4cac-8703-b2cbc30d4eaf/
SH256 hash:
c88a66cbf00b12c88e2b970b8bc220e970e8465e56098ced24e97d42be901b94
MD5 hash:
a60401dc02ff4f3250a749965097e13f
SHA1 hash:
3f22d28fd765f831084cb972a8bd071e421c26a1
Link:
https://www.unpac.me/results/e5aea989-ae8f-4cac-8703-b2cbc30d4eaf/
SH256 hash:
d3f950651595bac71455c6ce54bfb133edef1dbd1f8ebf0dfb6a8aab1a1d09e4
MD5 hash:
694576b365bfe02a1dbbbef62e9cf9d4
SHA1 hash:
96c5e80d4bcc21185dbfb069e9ed81765ff77b87
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/e5aea989-ae8f-4cac-8703-b2cbc30d4eaf/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293

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: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:SUSP_Reversed_Base64_Encoded_EXE
Create hunting rule
Author:Florian Roth
Description:Detects an base64 encoded executable with reversed characters
Reference:Internal Research
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

z 6e45843aa42e4e8b684254d51c0427e2133636a3dbbe2a337708048c8501c9b3

NanoCore

Executable exe f1eee793a63b26c3b031faad22f15c106caeda0b91800efab5d3c10791806293

(this sample)

  
Dropped by
MD5 bb8115af78e5311fa6ecf099ec60bccb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/107183/
  
Dropped by
SHA256 6e45843aa42e4e8b684254d51c0427e2133636a3dbbe2a337708048c8501c9b3

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