MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 abff9b1f07e8b7e7887b51a387e2c36438e04fe8de4b7488ef4917d26be0b36f. 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
| SHA256 hash: | abff9b1f07e8b7e7887b51a387e2c36438e04fe8de4b7488ef4917d26be0b36f |
|---|---|
| SHA3-384 hash: | ec1f92f1d30b71ffd866fe643a5fde9b64ac86398bfd3f24302bb2bae97e2b281f67666e7167dfdeb60006e2924636ce |
| SHA1 hash: | ee47c20aa9beb067098ab9a076b9d8decb12ee24 |
| MD5 hash: | 4b566bae2a88b91d774d22ba6ec50710 |
| humanhash: | kansas-seventeen-black-don |
| File name: | PO.pdf.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 657'408 bytes |
| First seen: | 2021-05-01 10:58:58 UTC |
| Last seen: | 2021-05-01 19:26:35 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:S5ckrTImD/v/m+J7wEiVHnp60D2k9yq+Qql2BPpvM5RNG:SD5D/3R7wXVHpZ9y8uG |
| Threatray | 1'826 similar samples on MalwareBazaar |
| TLSH | DAE4E07292449FD7C77C117AE0521210CFF6AD7331A1E6C93CE430E527FAB81AB64A1A |
| Reporter |  GovCERT_CH |
| Tags: | NanoCore |
Intelligence
File Origin
# of uploads :
2
# of downloads :
314
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Status:
Malicious
First seen:
2021-05-01 01:13:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
20 of 29 (68.97%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 1'816 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore evasion keylogger 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
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
23.105.131.190:4040
Unpacked files
SH256 hash:
bdf79e57b5574f9bafb56f6d0592f5ee429df7eb0ad536fbdb4f2956aae36f87
MD5 hash:
826b29e2a141b055a5491c9d7dc6eea7
SHA1 hash:
af4201362b8603bf7e4b6e2ead1cfb610dd7c0a9
SH256 hash:
abff9b1f07e8b7e7887b51a387e2c36438e04fe8de4b7488ef4917d26be0b36f
MD5 hash:
4b566bae2a88b91d774d22ba6ec50710
SHA1 hash:
ee47c20aa9beb067098ab9a076b9d8decb12ee24
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.
Malspam
Delivery method
Distributed via e-mail attachment
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