MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 942e878db472c9697a7db40c15fcf32878c589bf2d7dc8a96f28d999461df802. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 942e878db472c9697a7db40c15fcf32878c589bf2d7dc8a96f28d999461df802
SHA3-384 hash: 17650c34ea80bfa308fef5460a021c272d114cd9969275442d0b75a5937c084e167aeae6d3f4f6c98d32913506f3ca41
SHA1 hash: 0cd737de9286e608f82f5456c1dba543ab46ef85
MD5 hash: c158e8df4f9c92e4a438e307679a67e4
humanhash: summer-mississippi-robert-oranges
File name:P020433098747993990.PDF.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:679'424 bytes
First seen:2021-01-30 12:58:14 UTC
Last seen:2021-01-30 14:59:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:AtcOjQHfNbxpyZnfNtSyv71xiqZVxDuUx:AtcOjU/yZnFn1xie
Threatray 349 similar samples on MalwareBazaar
TLSH 9FE4F1467A899790C92871F269B792284B52FCE7A472C32ABFDC3B70CB731C058CD559
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: hwc-hwp-628983-828344
Sending IP: 192.236.237.224
From: 业务部（外）-Elena <admin2@handsom-llc.net>
Subject: Payments P020314/P020336 /P020360 /P020378 /P020433
Attachment: P020433098747993990.PDF.rar (contains "P020433098747993990.PDF.exe")

NanoCore RAT C2:
fenixalec.ddns.net

Intelligence

File Origin
# of uploads :
2
# of downloads :
252
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
P020433098747993990.PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-01-30 13:02:16 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/ccd105cb-70c3-442a-8224-4646b9d3fec7

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/114883/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
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
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/594550
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: 346313 Sample: P020433098747993990.PDF.exe Startdate: 30/01/2021 Architecture: WINDOWS Score: 100 37 fenixalec.ddns.net 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 9 other signatures 2->45 8 P020433098747993990.PDF.exe 15 7 2->8         started        signatures3 process4 file5 27 C:\Users\user\AppData\Roaming\bvfgbgh.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\...\InstallUtil.exe, PE32 8->29 dropped 31 C:\Users\user\...\bvfgbgh.exe:Zone.Identifier, ASCII 8->31 dropped 33 C:\Users\...\P020433098747993990.PDF.exe.log, ASCII 8->33 dropped 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->47 12 bvfgbgh.exe 14 2 8->12         started        15 cmd.exe 1 8->15         started        signatures6 process7 signatures8 49 Multi AV Scanner detection for dropped file 12->49 51 Writes to foreign memory regions 12->51 53 Allocates memory in foreign processes 12->53 55 2 other signatures 12->55 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, 49751, 49752 AS40676US Netherlands 17->35 25 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 17->25 dropped file11
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-01-29 04:08:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
25 of 46 (54.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sqxipdnuolews6t5wqgbl7htfb4mlcn7fv64rklpfdmzsrq57aba._file
Verdict:
unknown
Similar samples:
2ba9185ecb7b43e54242e560724993fbf5e24c3e1acd57889ac9dc305e934045
NanoCore
3891d2426f0ee2ce5e008a634c12715eeb167b32415c1c181afbf0aa0641143e
NanoCore
43ef60cadb56aed45b964b3f85827c9557b49f400a972f1cf9e16566e5dcf2d7
NanoCore
7c6d1379dd3786047f63cb90f2f318c00ac1483c6a5f6e00ad8efb6240a6548c
NanoCore
93db921e5b0cfe2de4485e03e756c4123c90046fe2fb83a36e60f4ccee822e28
NanoCore
c1e6cafdf311804c6d5a427de9f61965c223ae33fac564f33300f2a477ae8cd0
NanoCore
cd63e20a002279934bc2ed4887d77605686a79f28f8114f9c01b678754a1e10a
NanoCore
d13eb672da933a88f7ddbc45de31fde1da9479937470f4226ed9e5efff0048b1
NanoCore
f48af72b2049ce9cb61a28086fe47ffad766b26ea9ce27cce0082f435504dc73
NanoCore
ff68f0b8908d33ce1a3eb32cc1478e911b4e9dd853371f62a604fb366b274234
NanoCore
+ 339 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/210130-jft99psjfj/
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:
49dc26861fffee2f6440e56a10b7086ea305d2f16bb9e27ba3e08b9893557f86
MD5 hash:
e732cd6decfed3503b4020899d5a56f9
SHA1 hash:
024c1bf147c698e92aae340bbee323601d02a787
Link:
https://www.unpac.me/results/d2740025-e0a2-4508-896a-a9d23353391b/
SH256 hash:
4fbb56f5dc4e483df10bcd44d45bac4db5577be7ddf20a4e6c7957a5b271f0af
MD5 hash:
7f0eaa932643cecaa67e3cc6ed800ed6
SHA1 hash:
123360e62fb1d1e9e9f64b742cc2240041294752
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/d2740025-e0a2-4508-896a-a9d23353391b/
Parent samples :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 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/d2740025-e0a2-4508-896a-a9d23353391b/
SH256 hash:
942e878db472c9697a7db40c15fcf32878c589bf2d7dc8a96f28d999461df802
MD5 hash:
c158e8df4f9c92e4a438e307679a67e4
SHA1 hash:
0cd737de9286e608f82f5456c1dba543ab46ef85
Link:
https://www.unpac.me/results/d2740025-e0a2-4508-896a-a9d23353391b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.51
Link:
https://yomi.yoroi.company/submissions/942e878db472c9697a7db40c15fcf32878c589bf2d7dc8a96f28d999461df802

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.

Malspam

NanoCore

rar e3d6ddedfef39a4e807139844bb87b7d6bbfc0a629c0360e9f5c602ac9de6d69

NanoCore

Executable exe 942e878db472c9697a7db40c15fcf32878c589bf2d7dc8a96f28d999461df802

(this sample)

  
Dropped by
MD5 bb3f0ef8e63d2d72296b6e2053d7a7dc
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e3d6ddedfef39a4e807139844bb87b7d6bbfc0a629c0360e9f5c602ac9de6d69
Cape
Cape
https://www.capesandbox.com/analysis/114883/

Comments