MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ee9581098eb9fed674854c0f2579b5bfb17ae7788cdbb15abaa3c5af3af50ecc. 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: 11


Intelligence 11 IOCs YARA 8 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ee9581098eb9fed674854c0f2579b5bfb17ae7788cdbb15abaa3c5af3af50ecc
SHA3-384 hash: 15f34527c454516f95f7b048052334a414e1ad0fc7d9cefe7180326662b569b15d52097f129c8d8c371aa4a323409b35
SHA1 hash: 1b6e156e7d164b180ff7e2d7347b753216105858
MD5 hash: 5b50c9cc500c91f276f4160b30a21765
humanhash: vermont-two-uranus-low
File name:5b50c9cc500c91f276f4160b30a21765.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'122'376 bytes
First seen:2021-05-22 20:13:58 UTC
Last seen:2021-05-22 21:03:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 24576:BAOcZpJuvJSvh3z9lJs+o5rhEUbrfMY5aRcKXTEkG:brhUJXG+ofU2au
Threatray 2'401 similar samples on MalwareBazaar
TLSH AF351242F7C18872D57315329A29AB12AE7E7D201F28DB5E53E00D6DEE305817238FA7
Reporter abuse_ch
Tags:exe NanoCore RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5b50c9cc500c91f276f4160b30a21765.exe
Verdict:
Malicious activity
Analysis date:
2021-05-22 20:20:18 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/f6987999-df9d-45cb-8a89-770aeb4e5ab8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-9171337-0
Create hunting rule

Win.Packed.njRAT-9373659-0
Create hunting rule

SecuriteInfo.com.Gen.Variant.Johnnie.221809.751.14920.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Sending a UDP request
Creating a file
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Launching a process
Deleting a recently created file
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Connection attempt to an infection source
Enabling autorun by creating a file
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/788902
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Drops PE files with a suspicious file extension
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 421298 Sample: oAtDauU2HE.exe Startdate: 22/05/2021 Architecture: WINDOWS Score: 100 59 strongodss.ddns.net 2->59 67 Multi AV Scanner detection for domain / URL 2->67 69 Found malware configuration 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 8 other signatures 2->73 10 oAtDauU2HE.exe 32 2->10         started        14 vmbqbha.pif 2->14         started        16 dhcpmon.exe 2 2->16         started        18 3 other processes 2->18 signatures3 process4 file5 53 C:\Users\user\AppData\Local\...\vmbqbha.pif, PE32 10->53 dropped 83 Drops PE files with a suspicious file extension 10->83 20 vmbqbha.pif 2 4 10->20         started        85 Writes to foreign memory regions 14->85 87 Allocates memory in foreign processes 14->87 89 Injects a PE file into a foreign processes 14->89 24 RegSvcs.exe 2 14->24         started        26 conhost.exe 16->26         started        28 conhost.exe 18->28         started        30 conhost.exe 18->30         started        signatures6 process7 file8 51 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 20->51 dropped 75 Multi AV Scanner detection for dropped file 20->75 77 Writes to foreign memory regions 20->77 79 Allocates memory in foreign processes 20->79 81 Injects a PE file into a foreign processes 20->81 32 RegSvcs.exe 1 11 20->32         started        signatures9 process10 dnsIp11 55 79.134.225.40, 48154, 49726, 49728 FINK-TELECOM-SERVICESCH Switzerland 32->55 57 strongodss.ddns.net 79.134.225.82, 48154, 49721, 49724 FINK-TELECOM-SERVICESCH Switzerland 32->57 45 C:\Users\user\AppData\Roaming\...\run.dat, data 32->45 dropped 47 C:\Users\user\AppData\Local\...\tmpF375.tmp, XML 32->47 dropped 49 C:\Program Files (x86)\...\dhcpmon.exe, PE32 32->49 dropped 61 Protects its processes via BreakOnTermination flag 32->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 32->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 32->65 37 schtasks.exe 1 32->37         started        39 schtasks.exe 1 32->39         started        file12 signatures13 process14 process15 41 conhost.exe 37->41         started        43 conhost.exe 39->43         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ee9581098eb9fed674854c0f2579b5bfb17ae7788cdbb15abaa3c5af3af50ecc/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-05-21 14:28:34 UTC
File Type:
PE (Exe)
Extracted files:
41
AV detection:
21 of 46 (45.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=52kyccmoxh7nm5efjqhsk6nvx6yxvz3yrtn3cwv2upc26oxvb3ga._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
52b5f2f95b1200b20a6f3adfcb93c6f87713155f83176dede353ee158c7c1b63
NanoCore
8551c05301b50a17763637cca7f291a6b779c82f16275f734e793f6a0e7e1a17
NanoCore
9c62e75f2dc168671bddfe8cad2b102197c10d9039d8917a7637585ff603dbdd
NanoCore
9fd3eec622da8536e22c164bbd05d80dada1003fadd07fd4800ced6c0579812c
NanoCore
cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
NanoCore
e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
NanoCore
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
+ 2'391 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/210522-ak1p4cp1b2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
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:
strongodss.ddns.net:48154
79.134.225.40:48154
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ee9581098eb9fed674854c0f2579b5bfb17ae7788cdbb15abaa3c5af3af50ecc

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-22 21:36:12 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0029.002] Cryptography Micro-objective::SHA1::Cryptographic Hash
1) [C0029.003] Cryptography Micro-objective::SHA256::Cryptographic Hash
2) [C0031.001] Cryptography Micro-objective::AES::Decrypt Data
3) [C0032.001] Data Micro-objective::CRC32::Checksum
4) [C0026.002] Data Micro-objective::XOR::Encode Data
5) [C0030.001] Data Micro-objective::MurmurHash::Non-Cryptographic Hash
6) [F0004.007] Defense Evasion::Bypass Windows File Protection
8) [C0046] File System Micro-objective::Create Directory
9) [C0048] File System Micro-objective::Delete Directory
10) [C0047] File System Micro-objective::Delete File
11) [C0049] File System Micro-objective::Get File Attributes
12) [C0051] File System Micro-objective::Read File
13) [C0050] File System Micro-objective::Set File Attributes
14) [C0052] File System Micro-objective::Writes File
15) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
16) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
17) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
18) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
19) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
20) [C0040] Process Micro-objective::Allocate Thread Local Storage
21) [C0017] Process Micro-objective::Create Process
22) [C0038] Process Micro-objective::Create Thread
23) [C0041] Process Micro-objective::Set Thread Local Storage Value
24) [C0018] Process Micro-objective::Terminate Process