MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b2e7a5734291780ed1fcb5481a493a9782ded5c4e2d2a772b59113ae6a243209. 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: 16
| SHA256 hash: | b2e7a5734291780ed1fcb5481a493a9782ded5c4e2d2a772b59113ae6a243209 |
|---|---|
| SHA3-384 hash: | 84ad2e3e94abf06f21a020ef95d03329ab9c9ccfe1b91952abcd1013149d9e2cb64d25dad2683ef8f3f32497efe93cb8 |
| SHA1 hash: | 50f8a37010790aef9321d4f41fe0bbf894067dda |
| MD5 hash: | 18d8b2bd3c14f0b22e843f6f53a92c11 |
| humanhash: | chicken-cup-oscar-vermont |
| File name: | 18d8b2bd3c14f0b22e843f6f53a92c11 |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 302'274 bytes |
| First seen: | 2022-03-25 10:52:15 UTC |
| Last seen: | 2024-07-24 20:31:20 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 6144:rGiAJrjOeB7xdZJ6NZ+v1f23W1+ZOVQX2vfj86cCzdT5UtRw:6n37hJ6WNAW1+LXKfj86cY9Wtm |
| Threatray | 8'560 similar samples on MalwareBazaar |
| TLSH | T1F554220EBBC0CEB9C802023167767E65E7B7925806596D87273C1EBB3C297C74E2D4A5 |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  zbetcheckin |
| Tags: | 32 exe NanoCore |
Intelligence
File Origin
# of uploads :
3
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
https://libanswers.geneseo.edu/loaderTicket?fid=2528596&type=0&key=2201dc7870055193d4fd1ea24844f158
Verdict:
Malicious activity
Analysis date:
2022-03-25 12:59:23 UTC
Tags:
exploit CVE-2017-11882 rat nanocore loader trojan
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
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
Verdict:
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
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Detection:
nanocore
Threat name:
Win32.Trojan.Convagent
Status:
Malicious
First seen:
2022-03-24 13:36:34 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
21 of 26 (80.77%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
nanocorerat
Similar samples:
+ 8'550 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:agenttesla family:nanocore evasion keylogger spyware stealer suricata trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
AgentTesla Payload
AgentTesla
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
194.5.98.45:4040
Unpacked files
SH256 hash:
e2a1a6aedde02f8e681b970f0c747f87ac6eed8d35a21891634b890bb9a9331c
MD5 hash:
c5674774e2945f1e3ff8f6b29dbd7837
SHA1 hash:
3ac25e28cfebb4432d520d325f610547a32cf2b6
SH256 hash:
b2e7a5734291780ed1fcb5481a493a9782ded5c4e2d2a772b59113ae6a243209
MD5 hash:
18d8b2bd3c14f0b22e843f6f53a92c11
SHA1 hash:
50f8a37010790aef9321d4f41fe0bbf894067dda
Malware family:
NanoCore
Verdict:
Malicious
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: | malware_Nanocore_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Nanocore in memory |
| Reference: | internal research |
| Rule name: | MALWARE_Win_NanoCore |
|---|---|
| Author: | ditekSHen |
| Description: | Detects NanoCore |
| 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_Feb18_1_RID2DF1 |
|---|---|
| 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: | Nanocore_RAT_Gen_2_RID2D96 |
|---|---|
| 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.
Web download
Delivery method
Distributed via web download
Comments
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