MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3. 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: 14


Intelligence 14 IOCs 1 YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3
SHA3-384 hash: ab3ca192b9b3ff53dba74483f8253a6c1924fae544def99403e496c8d89bf842ab03c526c125897d94921f17bede7b99
SHA1 hash: 49e92c99c8b0777dc93ec4f3b13fdc6de99e80b0
MD5 hash: 617a5e683eb9f142139a860b9fb84959
humanhash: delta-fix-oregon-coffee
File name:gunzipped.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:207'872 bytes
First seen:2022-06-21 03:44:10 UTC
Last seen:2022-07-06 11:22:37 UTC
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:MLV6Bta6dtJmakIM5UUBPnGZd3wwMi5T5:MLV6BtpmknMOhwwMi15
Threatray 4'149 similar samples on MalwareBazaar
TLSH T15314CF5677A9892FE2CE86BD612241539379C2E3D8C3F3DE28D415B69F263E146070E3
TrID 69.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
188.127.231.93:3425

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
188.127.231.93:3425 https://threatfox.abuse.ch/ioc/717662/

Intelligence

File Origin
# of uploads :
2
# of downloads :
336
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/281775/
Detection(s):
Win.Trojan.NanoCore-9852758-0
Create hunting rule

Win.Packed.Generic-9777790-0
Create hunting rule

Win.Trojan.Generic-9783914-0
Create hunting rule

Win.Dropper.Nancrat-9869495-0
Create hunting rule

Win.Dropper.Nanocore-9916514-0
Create hunting rule

Win.Trojan.Nanocore-5
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Launching a process
DNS request
Searching for synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
greyware nanocore obfuscated packed rat schtasks.exe
Link:
https://www.filescan.io/uploads/62b13ebe08903778452be142/reports/d74b9fc9-0bbc-4b84-b1ff-ea28397d7f24/overview
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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8976d9fe-76dc-4ec8-affa-23723c9cc317
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016793
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2022-06-21 03:32:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
39 of 41 (95.12%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eq3jlzyidsd4dikm73yprg3vxuzg5xxw4zi67cysj6uakln646rq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
07f511ce3b6a8fb409c1a05ea3e01a6d92422674224109c8d0889a017122098c
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
7ceb354c4f419b3daed055ae62d5b1aaf58a7b715f8e9de08e5379e7e70ebeb6
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
NanoCore
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
ffec1862f56857ad722abbcb98be7af86f2cf0763371bcb40273f0d884157c32
NanoCore
+ 4'139 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220621-ea23hsche9/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
config.linkpc.net:3425
Unpacked files
SH256 hash:
243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3
MD5 hash:
617a5e683eb9f142139a860b9fb84959
SHA1 hash:
49e92c99c8b0777dc93ec4f3b13fdc6de99e80b0
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/52892360-c753-4975-95bf-96fe04ac7bf9/
Parent samples :
243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3
21281c48dd7beeb19d22aef27f4d77f79c550fc32acc69d4c3b91966cc8a048b
02558d43b82050ac649bd7eff62a663dd98d141033f6cca56bc99bc811a059b8
0289b5c2829170ad4bb04daedbd3db5e56474415aee109a91a66ba9fa8a7a179
999c19bb669363e626ff41024ebe756e82a200fd874f8099dfbf8776360ccba2
0090148371c3a92d98212cda20209ca8d7b4e50c0c7829e6d17501d85c826743
c7e6e4337c88f196926b8833aac8b3c9b1759b657128da161ec2d279f1ef613e
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/243695e7081c87c1a14cfef0f89b75bd326edef6e651ef8b124fa8052dbee7a3

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:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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_Feb18_1_RID2DF1
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:Nanocore_RAT_Gen_2_RID2D96
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.

Cape
Cape
https://www.capesandbox.com/analysis/281775/

Comments