MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c906c5770bebca31da7c8da7a639ec54531022d2a88bc133f89f793e7a3d737d. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c906c5770bebca31da7c8da7a639ec54531022d2a88bc133f89f793e7a3d737d
SHA3-384 hash: a3b2db91f55f5ac8fc5a7932bfbf3a7b94ba1672338131be1b2b1b8da45541994210f05d21ca11e0f745354041864df2
SHA1 hash: ed8c149d833ebb14a8adf18c44f2cf46708dfb23
MD5 hash: 6b347741476caca60cc91f0d931260b6
humanhash: iowa-papa-illinois-jersey
File name:New order.pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:709'120 bytes
First seen:2020-07-21 09:26:04 UTC
Last seen:2020-07-21 09:56:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:WuDpTHp5ki9XI/INHuwXMbJYimPkSYqF:7Ft3XIwY1dekjq
Threatray 1'125 similar samples on MalwareBazaar
TLSH ADE41BA1EAEBCCBEC072143C113065510A679FCA5743EBD8A06DBD39DC35702B599E3A
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: 026.gestiondealojamiento.com
Sending IP: 193.42.143.182
From: xisco.segui@cristalleriaarxiduc.com
Subject: TT/ Electronic payment
Attachment: New order.pdf.gz (contains "New order.pdf.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29968/
Detection(s):
SecuriteInfo.com.Artemis6B347741476C.21200.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for analyzed file
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392908
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 248799 Sample: New order.pdf.exe Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 12 other signatures 2->49 6 New order.pdf.exe 1 4 2->6         started        9 msword.exe 2 2->9         started        12 wpasv.exe 2 2->12         started        14 msword.exe 2 2->14         started        process3 file4 35 C:\Users\user\AppData\Roaming\msword.exe, PE32 6->35 dropped 37 C:\Users\user\...\msword.exe:Zone.Identifier, ASCII 6->37 dropped 16 New order.pdf.exe 1 9 6->16         started        21 New order.pdf.exe 6->21         started        53 Multi AV Scanner detection for dropped file 9->53 55 Machine Learning detection for dropped file 9->55 23 msword.exe 3 9->23         started        25 wpasv.exe 3 12->25         started        27 msword.exe 2 14->27         started        signatures5 process6 dnsIp7 39 flysky1400.ddns.net 118.151.221.106, 3180, 49718, 49719 GLOBENET-AS-IDPTFastelSaranaIndonesiaID Indonesia 16->39 41 127.0.0.1 unknown unknown 16->41 29 C:\Program Files (x86)\...\wpasv.exe, PE32 16->29 dropped 31 C:\Users\user\AppData\Roaming\...\run.dat, data 16->31 dropped 33 C:\...\wpasv.exe:Zone.Identifier, ASCII 16->33 dropped 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->51 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c906c5770bebca31da7c8da7a639ec54531022d2a88bc133f89f793e7a3d737d/
Threat name:
ByteCode-MSIL.Trojan.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 03:51:19 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zedmk5yl5pfddwt4rwt2mopmkrjraiwsvcf4cm7yt54t46r5on6q._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
036c0fbb1ffb23e9bfd4b4834a396d79ec319078865adf3ef75418450cf9fd18
NanoCore
6306c2750ef668ad467a0f9ee9a72f40420f52e359233223a1a09a755d837b21
NanoCore
7370a7e091fac25ebdad745b779e1d83f9599893ae465803dc03c943b66fda1c
NanoCore
756fde810887452ab2533283973f2e582df198988bcafde9f20dc85e35f4d5c4
NanoCore
830ebbba209b2d1403ad73d769b387ab9ee0d89f22a56aecdaf306e4d5e0e439
NanoCore
a9352a90a15c864ae05d1d1138aff00094883dc44afffc471e837e46fe3eb24e
NanoCore
c2c3851dfab3b0b959145307759d5ed1cb64d92b7e0af87b79f0df0ee7b71e38
NanoCore
ccf661061226a4fe358b46c6fab8a29686323e41aa50fe06c06963c9939a2669
NanoCore
d86b5f7fffdf4b871b5487b02de0366b3edbd96a75f86a0f57a602796a8136da
NanoCore
e7fa1cf008969a70a894b2947737b69c26abb63378d9d4305b698b223793029f
NanoCore
+ 1'115 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence evasion
Link:
https://tria.ge/reports/200721-16cw2qhnpn/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
flysky1400.ddns.net:3180
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c906c5770bebca31da7c8da7a639ec54531022d2a88bc133f89f793e7a3d737d

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_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

gz 7506eeda19e909f2df2d12464fc00b03d99a011c2c4f728142c9cf57e260443d

NanoCore

Executable exe c906c5770bebca31da7c8da7a639ec54531022d2a88bc133f89f793e7a3d737d

(this sample)

  
Dropped by
MD5 8444e9b590c59d4f7668bff6326e2b61
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/29968/
  
Dropped by
SHA256 7506eeda19e909f2df2d12464fc00b03d99a011c2c4f728142c9cf57e260443d

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