MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cb4279810ba8e73ac519ac432d219456a9945f41625c0283fd2f7a2ec0aecb1e. 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
| SHA256 hash: | cb4279810ba8e73ac519ac432d219456a9945f41625c0283fd2f7a2ec0aecb1e |
|---|---|
| SHA3-384 hash: | 58ce731960ab633b8e3c7471a3264417b2c42ab93c64a20c62608c40c76b84a55cad5a62986ca8f0b77681f7936e61fb |
| SHA1 hash: | 7eb1f244846eb7ca42f71b9d58b146b29da229cd |
| MD5 hash: | 1a04627453a22635b7ed4f3565de8b0e |
| humanhash: | avocado-yellow-nineteen-eleven |
| File name: | TT Copy,xlsx.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 6'144 bytes |
| First seen: | 2021-06-08 08:50:11 UTC |
| Last seen: | 2021-06-08 09:43:38 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger) |
| ssdeep | 48:65TMAOCZ+bIA52JbwmNmXLFJLUb0V9zcHzHorDmHnO9HtSqBHPPw9R+laCRKvnSu:1R52JYMb0PhranO9HtSkh77zNt |
| Threatray | 2'007 similar samples on MalwareBazaar |
| TLSH | CEC18512A3E80333DEB78B7948B352005678F61599678F5E64E0021F9D27795DF21FA2 |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore RAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 185.222.57.254:5050 | https://threatfox.abuse.ch/ioc/72457/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TT Copy,xlsx.exe
Verdict:
Malicious activity
Analysis date:
2021-06-08 08:52:13 UTC
Tags:
rat nanocore trojan
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Sending a custom TCP request
Launching a process
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Using the Windows Management Instrumentation requests
Sending a UDP request
Unauthorized injection to a system process
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
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
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 to the startup folder
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Status:
Malicious
First seen:
2021-06-08 08:51:07 UTC
AV detection:
10 of 46 (21.74%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'997 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Downloads MZ/PE file
NanoCore
Malware Config
C2 Extraction:
rej.rejgroups.com:5050
Unpacked files
SH256 hash:
cb4279810ba8e73ac519ac432d219456a9945f41625c0283fd2f7a2ec0aecb1e
MD5 hash:
1a04627453a22635b7ed4f3565de8b0e
SHA1 hash:
7eb1f244846eb7ca42f71b9d58b146b29da229cd
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
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 |
|---|---|
| Author: | abuse.ch |
| Rule name: | Nanocore |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| Rule name: | nanocore_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | Nanocore_RAT_Feb18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Nanocore RAT |
| Reference: | Internal Research - T2T |
| Rule name: | Nanocore_RAT_Gen_2 |
|---|---|
| Author: | Florian Roth |
| Description: | Detetcs the Nanocore RAT |
| Reference: | https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/ |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_nanocore_w0 |
|---|---|
| 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.
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