MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 618d343a6d7f54a0bfd917555c79c6a777b10a35fc2da0d75f6d85354de40637. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
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SHA256 hash: 618d343a6d7f54a0bfd917555c79c6a777b10a35fc2da0d75f6d85354de40637
SHA3-384 hash: 37e49a9d51bf77adbce3da8784afc4a90263af0b258407814ccfc3a8df168eac58cf1ed21ddda30b77050e81c6071373
SHA1 hash: 771ff981d42d6c7fc3550de8cb109e3311b0e0fa
MD5 hash: ea28f2d01808072dbe45804f514ef905
humanhash: alpha-hydrogen-hotel-bravo
File name:PO#4018-308875.pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:642'048 bytes
First seen:2021-01-25 14:37:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:zE65Gn+cJUsvcfFH+mff7BBTkNAo23KB2pTwcSn9vCfEvgYt:UnVWsvcdHpTkJ23d9ZSn9V9t
Threatray 284 similar samples on MalwareBazaar
TLSH 25D40225AB88C3F1C231357F8AB6707DCB39F4E72BA247A525E6C9377A421E5D50E210
Reporter James_inthe_box
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO#4018-308875.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-01-25 14:40:39 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/47db147e-7974-4649-99b4-823bc5c73b96

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/113724/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45601965.5328.8099.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Running batch commands
Launching a process
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% directory
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created 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/589772
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 343937 Sample: PO#4018-308875.pdf.exe Startdate: 25/01/2021 Architecture: WINDOWS Score: 100 39 185.162.88.26:2091 unknown unknown 2->39 41 fenixalec.ddns.net 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 9 other signatures 2->49 8 PO#4018-308875.pdf.exe 5 2->8         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\tgfcdsxazs.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\InstallUtil.exe, PE32 8->29 dropped 31 C:\Users\...\tgfcdsxazs.exe:Zone.Identifier, ASCII 8->31 dropped 33 C:\Users\user\...\PO#4018-308875.pdf.exe.log, ASCII 8->33 dropped 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->51 12 tgfcdsxazs.exe 2 8->12         started        15 cmd.exe 1 8->15         started        signatures6 process7 signatures8 53 Multi AV Scanner detection for dropped file 12->53 55 Writes to foreign memory regions 12->55 57 Allocates memory in foreign processes 12->57 59 2 other signatures 12->59 17 InstallUtil.exe 6 12->17         started        21 conhost.exe 15->21         started        23 reg.exe 1 1 15->23         started        process9 dnsIp10 35 fenixalec.ddns.net 185.162.88.26, 20911, 49737, 49738 AS40676US Netherlands 17->35 37 192.168.2.1 unknown unknown 17->37 25 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 17->25 dropped file11
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/618d343a6d7f54a0bfd917555c79c6a777b10a35fc2da0d75f6d85354de40637/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2021-01-22 08:38:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
31 of 46 (67.39%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mggtiotnp5kkbp6zc5kvy6ogu533ccrv7qw2bv27nwctktpeay3q._file
Verdict:
unknown
Similar samples:
13636e9795fdf0357c790acb8f35f012fa7b2be5434e40f727b99451d808487a
NanoCore
1f1bc6a65867b976dd8cdc00b6519b60b4da65af780f1636c447e5ebca91da96
NanoCore
2282058691f8597344411ed34d7c33a8d23ca40362d8ee9567f3e71ed22bedef
NanoCore
4e599dda2d5d0f3cad7ac5451a39cb1c4934ea0f10fd9163e82711455aaf3efd
NanoCore
77d1e1c8c87b166c88ab728ff9830a8c7c2da67ce68a5348846fdfa1be8183b3
NanoCore
83ee84084d628a921bd29b547f6767e17d8cd89a6132f9d717d5ccab7da72fbd
NanoCore
8b066067df73a77d2b21f65084a3d87868e11d4ae2ba3e039a7aa819b6245964
NanoCore
b303d3f820da914a39a9a859de14c201515377f31f6631c7e0384dbe44fca53c
NanoCore
daa6dbdc8820fd2049680ae3a25ff25d14245a39d75717cc5e3b06f042c82585
NanoCore
dd2338c1c8e798e8428bbd62513e3ca5aafb8d238a01e67e32330c7e383f2c1f
NanoCore
+ 274 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence ransomware spyware stealer trojan
Link:
https://tria.ge/reports/210125-ml39dn7n2j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
185.162.88.26:20911
fenixalec.ddns.net:20911
Unpacked files
SH256 hash:
a60900adc31e8e28ff541b91a55de5d9719c0d1ddc3022eb6f6fb5ac19cc9e4f
MD5 hash:
831fb0609b3509b4fb31ac662ac69217
SHA1 hash:
985c33fa2b01e305995e2ea166b961b01f0f6335
Link:
https://www.unpac.me/results/b98a6bb4-1309-4d98-bd0f-da3a14ba0806/
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/b98a6bb4-1309-4d98-bd0f-da3a14ba0806/
SH256 hash:
4fbb56f5dc4e483df10bcd44d45bac4db5577be7ddf20a4e6c7957a5b271f0af
MD5 hash:
7f0eaa932643cecaa67e3cc6ed800ed6
SHA1 hash:
123360e62fb1d1e9e9f64b742cc2240041294752
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/b98a6bb4-1309-4d98-bd0f-da3a14ba0806/
Parent samples :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 hash:
618d343a6d7f54a0bfd917555c79c6a777b10a35fc2da0d75f6d85354de40637
MD5 hash:
ea28f2d01808072dbe45804f514ef905
SHA1 hash:
771ff981d42d6c7fc3550de8cb109e3311b0e0fa
Link:
https://www.unpac.me/results/b98a6bb4-1309-4d98-bd0f-da3a14ba0806/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/618d343a6d7f54a0bfd917555c79c6a777b10a35fc2da0d75f6d85354de40637

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: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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/113724/

Comments