MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0ef41dabaa6af07317dd45595f15625cb7517650bb13b365de0717d3cad26197. 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


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

SHA256 hash: 0ef41dabaa6af07317dd45595f15625cb7517650bb13b365de0717d3cad26197
SHA3-384 hash: 41773aee5d2045278701fe81985fa14c06fbd53a207f4e16603205244b1afd48cef79d9524adb860d9bc4e73d1a3ff71
SHA1 hash: f1cb392fa0fd6acbb6eb1d858064a74fd5272ff3
MD5 hash: b8362f2f6e0353819fa0dd8a35ef6a58
humanhash: avocado-ohio-sad-whiskey
File name:b8362f2f6e0353819fa0dd8a35ef6a58.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:992'768 bytes
First seen:2021-04-07 10:05:16 UTC
Last seen:2021-04-07 11:03:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:5EMXiA97oRAgvitEQ6TFQdNXDfx2EHphAKeZrdhOBcc3:nH97AZfQ0GdNMEHbkhOH
Threatray 5 similar samples on MalwareBazaar
TLSH B825B28620ECD2D2E029ADBCC41BD3F33396DDAB8741E74631ACF85A656779AD11340B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
194.5.98.9:8282

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
194.5.98.9:8282 https://threatfox.abuse.ch/ioc/7136/

Intelligence

File Origin
# of uploads :
2
# of downloads :
159
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b8362f2f6e0353819fa0dd8a35ef6a58.exe
Verdict:
Malicious activity
Analysis date:
2021-04-07 10:14:44 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/762c62e2-e866-4462-b042-c9cdf2e24336

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/132810/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.607.2912.30840.UNOFFICIAL
Create hunting rule

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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/668507
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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)
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
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 383183 Sample: n4CeZTejKM.exe Startdate: 07/04/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for dropped file 2->66 68 14 other signatures 2->68 7 n4CeZTejKM.exe 7 2->7         started        11 dhcpmon.exe 2->11         started        process3 file4 44 C:\Users\user\AppData\...\sIlqvNJawsmeFV.exe, PE32 7->44 dropped 46 C:\...\sIlqvNJawsmeFV.exe:Zone.Identifier, ASCII 7->46 dropped 48 C:\Users\user\AppData\Local\...\tmpF565.tmp, XML 7->48 dropped 50 C:\Users\user\AppData\...\n4CeZTejKM.exe.log, ASCII 7->50 dropped 70 Uses schtasks.exe or at.exe to add and modify task schedules 7->70 72 Adds a directory exclusion to Windows Defender 7->72 74 Injects a PE file into a foreign processes 7->74 13 n4CeZTejKM.exe 7->13         started        18 powershell.exe 24 7->18         started        20 powershell.exe 26 7->20         started        28 2 other processes 7->28 22 powershell.exe 11->22         started        24 schtasks.exe 11->24         started        26 powershell.exe 11->26         started        30 4 other processes 11->30 signatures5 process6 dnsIp7 58 lastme11.ddns.net 194.5.98.9, 49705, 49709, 49712 DANILENKODE Netherlands 13->58 60 127.0.0.1 unknown unknown 13->60 52 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->52 dropped 54 C:\Users\user\AppData\Roaming\...\run.dat, ISO-8859 13->54 dropped 56 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 13->56 dropped 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->76 32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 26->40         started        42 conhost.exe 28->42         started        file8 signatures9 process10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/0ef41dabaa6af07317dd45595f15625cb7517650bb13b365de0717d3cad26197/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-26 10:00:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=b32b3k5knlyhgf65ivmv6flcls3vc5sqxmj3gzo6a4l5hswsmglq._file
Verdict:
unknown
Similar samples:
0533e896717fa4ff365579e940b16d3e0543ccd319f4cee76c9ab71999a669b6
NanoCore
c20fca96d4e870403e4e1f58766271241fb60e0c8e81b1d778d1366c53d69162
NanoCore
d69345d398849a377103e09925aca369a6ee8fdaca08745d3bbb02aa79eb2861
NanoCore
ebdb5f9167c925da14a5783a022be63ac4daeeb7515692c7cd50c37a7851e7e4
NanoCore
f43c8dbac644d6e19bc88407b4d11870793af3ae00e8f359137db7e28044a89f
NanoCore
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210407-kfttg5rqyx/
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
NanoCore
Malware Config
C2 Extraction:
lastme11.ddns.net:8282
127.0.0.1:8282
Unpacked files
SH256 hash:
c22b9993fd6abea236edcc1bf476bcd4a09015b4af09eedf660a43bf3d29a16f
MD5 hash:
1d1234ba19c430923b22f531bb19b369
SHA1 hash:
9868c1e97a3be16100a61b5ee1f7d2838b4782a8
Link:
https://www.unpac.me/results/e61e952e-b322-4c93-9d30-7b2581aa391f/
SH256 hash:
0ef41dabaa6af07317dd45595f15625cb7517650bb13b365de0717d3cad26197
MD5 hash:
b8362f2f6e0353819fa0dd8a35ef6a58
SHA1 hash:
f1cb392fa0fd6acbb6eb1d858064a74fd5272ff3
Link:
https://www.unpac.me/results/e61e952e-b322-4c93-9d30-7b2581aa391f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Nanocore
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0ef41dabaa6af07317dd45595f15625cb7517650bb13b365de0717d3cad26197

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/132810/

Comments