MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
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SHA256 hash: 24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622
SHA3-384 hash: 923571809c1646ac24830be904550090823d1f24da8144008b6dc4975cd30f7e2bde4cce011a473d6c6f0d5104283b0f
SHA1 hash: bbc0cec1892e41a0d854b33bf8d8f156367caf6b
MD5 hash: 0f69b38426bbbcb5528aaef9d7d6e054
humanhash: cat-east-march-california
File name:Re Remittance Advice.exe
Download: download sample
Signature NanoCore
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File size:580'096 bytes
First seen:2022-09-08 10:18:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:XO8l02b1zzUFFiRU8WnSSW/FnILBTqZfs+StQPI:NlfzzUFAKLSSW+LBTq3A
TLSH T17BC4F19B4F646E21C27D63F203585AB0C3F1D1CB9809EB5E58CEA1BC2B727915DA1C63
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter madjack_red
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
304
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
Create hunting rule
ID:
1
File name:
Re Remittance Advice.exe
Verdict:
Malicious activity
Analysis date:
2022-09-08 10:20:24 UTC
Tags:
nanocore trojan rat
Link:
https://app.any.run/tasks/11914c59-762e-4837-9cbc-3683470b5fd0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/308734/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.61846468.22159.21418.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6319c1a2e73fb79b7a009801/reports/2b8606eb-130d-46c1-a861-52a9f1c390c5/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/fdbd3e2b-4e23-4172-82f8-b95670b63570
Result
Threat name:
Nanocore, DarkTortilla
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1067017
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected Nanocore Rat
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
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DarkTortilla Crypter
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 699549 Sample: Re Remittance Advice.exe Startdate: 08/09/2022 Architecture: WINDOWS Score: 100 58 brightnano1.ddns.net 2->58 68 Snort IDS alert for network traffic 2->68 70 Multi AV Scanner detection for domain / URL 2->70 72 Malicious sample detected (through community Yara rule) 2->72 74 11 other signatures 2->74 9 Re Remittance Advice.exe 15 3 2->9         started        14 Bin.exe 14 3 2->14         started        16 Bin.exe 2 2->16         started        signatures3 process4 dnsIp5 60 www.google.com 142.250.203.100, 443, 49694, 49701 GOOGLEUS United States 9->60 56 C:\Users\...\Re Remittance Advice.exe.log, ASCII 9->56 dropped 84 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->84 18 cmd.exe 3 9->18         started        22 cmd.exe 1 9->22         started        86 Multi AV Scanner detection for dropped file 14->86 88 Machine Learning detection for dropped file 14->88 90 Writes to foreign memory regions 14->90 24 RegAsm.exe 14->24         started        92 Injects a PE file into a foreign processes 16->92 26 RegAsm.exe 16->26         started        file6 signatures7 process8 file9 48 C:\Users\user\Desktop\Bin.exe, PE32 18->48 dropped 50 C:\Users\user\...\Bin.exe:Zone.Identifier, ASCII 18->50 dropped 76 Uses ping.exe to sleep 18->76 28 Bin.exe 18->28         started        32 PING.EXE 1 18->32         started        34 conhost.exe 18->34         started        36 PING.EXE 1 18->36         started        78 Uses ping.exe to check the status of other devices and networks 22->78 38 reg.exe 1 1 22->38         started        40 PING.EXE 1 22->40         started        42 conhost.exe 22->42         started        52 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 24->52 dropped 54 C:\Users\user\AppData\Roaming\...\dhcpmon.exe, PE32 24->54 dropped 80 Creates multiple autostart registry keys 24->80 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->82 signatures10 process11 dnsIp12 62 www.google.com 28->62 94 Writes to foreign memory regions 28->94 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 28->96 98 Injects a PE file into a foreign processes 28->98 44 RegAsm.exe 28->44         started        46 RegAsm.exe 28->46         started        64 192.168.2.1 unknown unknown 32->64 100 Creates multiple autostart registry keys 38->100 66 127.0.0.1 unknown unknown 40->66 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2022-09-07 13:49:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ermeqy7dlm3pulgufbngvl6wuel6ubmfyxes3xzitkytxcxyoyra._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
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Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220908-mbx4ysecf7/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
brightnano1.ddns.net:1989
171.22.30.97:1989
Unpacked files
SH256 hash:
24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622
MD5 hash:
0f69b38426bbbcb5528aaef9d7d6e054
SHA1 hash:
bbc0cec1892e41a0d854b33bf8d8f156367caf6b
Link:
https://www.unpac.me/results/b522a632-b6b9-493c-be1f-b8296bd8895f/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/24584863e35b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/308734/

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