MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 f71bb31089ce7ba0d17bec153043878813967be2041d44e17ada2a4d30b777c5. 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
| SHA256 hash: | f71bb31089ce7ba0d17bec153043878813967be2041d44e17ada2a4d30b777c5 |
|---|---|
| SHA3-384 hash: | 0f3fa366211b957174bb51609ca51ceef33e83ec4f6f589a0da4854f5f291a3d8a56c5708e4a64412fe8398871100d64 |
| SHA1 hash: | 9ad31e53fca1806c90ca63b78bfbe476ef243e06 |
| MD5 hash: | 840397cd0c0369951d2e8cb2d8ec224f |
| humanhash: | stairway-dakota-nuts-west |
| File name: | quote request 31 march 2021.doc.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 909'824 bytes |
| First seen: | 2021-03-31 03:14:17 UTC |
| Last seen: | 2021-03-31 03:44:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger) |
| ssdeep | 24576:0kXffBhEStCFJpw1ATlXbPa6e7zK+jIDBcBDJ9zztzzK:LpK1bPa6CD99zztzzK |
| Threatray | 1'723 similar samples on MalwareBazaar |
| TLSH | 0F15D0557209BC89E03A5AF108FC4B4123A36FC98615D67DFC48B49499F32C276EBEC6 |
| 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 |
|---|---|
| 194.5.97.242:5999 | https://threatfox.abuse.ch/ioc/6189/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
135
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
quote request 31 march 2021.doc.exe
Verdict:
Malicious activity
Analysis date:
2021-03-31 05:15:26 UTC
Tags:
rat nanocore
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a window
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
nanocore
Threat name:
Win32.Trojan.GenericML
Status:
Malicious
First seen:
2021-03-31 02:38:23 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'713 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
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
Uses the VBS compiler for execution
NirSoft MailPassView
Nirsoft
NanoCore
Malware Config
C2 Extraction:
194.5.97.242:5999
127.0.0.1:5999
127.0.0.1:5999
Unpacked files
SH256 hash:
d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb
MD5 hash:
00cbf73d8b9f03417a3a32957ec64ed4
SHA1 hash:
b862eff1cf240a5ad5325fd258892e534484a6e8
SH256 hash:
f71bb31089ce7ba0d17bec153043878813967be2041d44e17ada2a4d30b777c5
MD5 hash:
840397cd0c0369951d2e8cb2d8ec224f
SHA1 hash:
9ad31e53fca1806c90ca63b78bfbe476ef243e06
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | 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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