MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3. 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: 13


Intelligence 13 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3
SHA3-384 hash: 456b4d11677ebddd4dac3874e9d4db15c494cf2e1cde962b12568000ccdf762b31abe098ec97043089aff7f630af627c
SHA1 hash: 03433d1207773311c68dc6d80cb571a3d02de3ec
MD5 hash: 2d22389a5cefc5ed76aefdc0ae129519
humanhash: foxtrot-speaker-diet-oxygen
File name:1sM0iOEOrmYMwIq.bin
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'059'328 bytes
First seen:2022-07-11 12:13:34 UTC
Last seen:2022-07-11 12:55:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:ZXQcAGX1v41Xe9ggqRbMB9MIVJdw8nrtygrYs:ZgcAA1+bM8IV/w8n5Ys
Threatray 8'128 similar samples on MalwareBazaar
TLSH T16E35D0CE3110F98DD017483D65BDAFA09561A87B864EFECBB463303C89DC9AB99161D3
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0ccf096c8f2ccf0 (15 x AgentTesla, 7 x Formbook, 5 x Loki)
Reporter KdssSupport
Tags:exe NanoCore


Avatar
KdssSupport
Uploaded with API

Intelligence

File Origin
# of uploads :
3
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
1sM0iOEOrmYMwIq.exe
Verdict:
Malicious activity
Analysis date:
2022-07-11 12:03:10 UTC
Tags:
rat nanocore trojan
Link:
https://app.any.run/tasks/9db3bd55-da84-4252-b71a-e9e04a2d877c

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/286200/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.23401.1009.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62cc140dbbcf6baf279387d1/reports/5a0bdbf3-15fc-4aa2-b53c-e6244b8ed1cb/overview
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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/df8c4110-0c72-4ba8-80bf-1552c6ba8ad3
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1028931
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Snort IDS alert for network traffic
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 dnsIp2 2 Behavior Graph ID: 661426 Sample: 1sM0iOEOrmYMwIq.bin Startdate: 11/07/2022 Architecture: WINDOWS Score: 100 77 lowaspeed.ddnsfree.com 2->77 85 Snort IDS alert for network traffic 2->85 87 Multi AV Scanner detection for domain / URL 2->87 89 Malicious sample detected (through community Yara rule) 2->89 91 18 other signatures 2->91 9 1sM0iOEOrmYMwIq.exe 7 2->9         started        14 1sM0iOEOrmYMwIq.exe 4 2->14         started        16 dhcpmon.exe 2->16         started        18 dhcpmon.exe 2->18         started        signatures3 process4 dnsIp5 83 192.168.2.1 unknown unknown 9->83 69 C:\Users\user\AppData\Roaming\FWGdqA.exe, PE32 9->69 dropped 71 C:\Users\user\...\FWGdqA.exe:Zone.Identifier, ASCII 9->71 dropped 73 C:\Users\user\AppData\Local\...\tmp7BBF.tmp, XML 9->73 dropped 75 C:\Users\user\...\1sM0iOEOrmYMwIq.exe.log, ASCII 9->75 dropped 97 Detected unpacking (changes PE section rights) 9->97 99 Detected unpacking (overwrites its own PE header) 9->99 101 Uses schtasks.exe or at.exe to add and modify task schedules 9->101 20 1sM0iOEOrmYMwIq.exe 1 14 9->20         started        25 powershell.exe 25 9->25         started        27 schtasks.exe 1 9->27         started        29 1sM0iOEOrmYMwIq.exe 9->29         started        103 Adds a directory exclusion to Windows Defender 14->103 105 Injects a PE file into a foreign processes 14->105 31 powershell.exe 14->31         started        33 schtasks.exe 14->33         started        35 1sM0iOEOrmYMwIq.exe 14->35         started        37 3 other processes 16->37 39 3 other processes 18->39 file6 signatures7 process8 dnsIp9 79 411speed.duckdns.org 192.169.69.26, 40111, 49729, 49730 WOWUS United States 20->79 81 lowaspeed.ddnsfree.com 194.5.98.219, 40111, 49727, 49732 DANILENKODE Netherlands 20->81 63 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->63 dropped 65 C:\Users\user\AppData\Roaming\...\run.dat, data 20->65 dropped 67 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 20->67 dropped 93 Protects its processes via BreakOnTermination flag 20->93 95 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->95 41 schtasks.exe 1 20->41         started        43 schtasks.exe 20->43         started        45 conhost.exe 25->45         started        47 conhost.exe 27->47         started        49 conhost.exe 31->49         started        51 conhost.exe 33->51         started        53 conhost.exe 37->53         started        55 conhost.exe 37->55         started        57 2 other processes 39->57 file10 signatures11 process12 process13 59 conhost.exe 41->59         started        61 conhost.exe 43->61         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-07-11 12:14:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=d7ckazckpu2fe3rgq2zalzgvthmq4mogf5yci2hsnl77xlnp67bq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0289b5c2829170ad4bb04daedbd3db5e56474415aee109a91a66ba9fa8a7a179
NanoCore
28a6aa59b2f5be44746d1faa1eb9ff8adf8f3cf14fa6c62ef166cdbe15d2434c
NanoCore
324a3f0c9fac643114fe51b2a69d7a940c674bcdbe42d3b28ddd38515e51fda4
NanoCore
63f1b10c759ba99da98645bdc82e508012b7a6602945c991e42285d1e2ce7bf9
NanoCore
c8fb2b38dee96b9bf7b199c9ac198238826b00b48d00048e64f54656a814535c
NanoCore
de7bcd7ffa573ffb32e5523cdea0a0fa39bde98a4610f9e791720fa33bf7207a
NanoCore
e2910ca7a9cbd14fad956c01b59c56e941cff44b26aa12a786b5bd7d59cda533
NanoCore
+ 8'118 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220711-pea5psbcc5/
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
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
lowaspeed.ddnsfree.com:40111
411speed.duckdns.org:40111
Unpacked files
SH256 hash:
0fae1855c65d635d55e5f6aa450d8c9f3bd63c5cb4ef8e7d6947757b6c4a812e
MD5 hash:
51b3e4f94acfd5f6febdeda4f4e09db3
SHA1 hash:
c526c72601e747287c80aebb4357e6091aa2a960
Link:
https://www.unpac.me/results/bc148dad-afdf-42dc-9402-86631ba95147/
SH256 hash:
1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3
MD5 hash:
2d22389a5cefc5ed76aefdc0ae129519
SHA1 hash:
03433d1207773311c68dc6d80cb571a3d02de3ec
Link:
https://www.unpac.me/results/bc148dad-afdf-42dc-9402-86631ba95147/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1fc4a0644a7d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3

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
Create hunting rule
Author:abuse.ch
Rule name:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Feb18_1_RID2DF1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_nanocore_w0
Create hunting rule
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

NanoCore

Executable exe 1fc4a0644a7d34526e2686b205e4d599d90e31c62f702468f26afffbadaff7c3

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/286200/

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