MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73662984d71a5d721274bd1b5ac416730f76260b459156a983290e6b92794d91. 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: 9


Intelligence 9 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 73662984d71a5d721274bd1b5ac416730f76260b459156a983290e6b92794d91
SHA3-384 hash: 91151ddcee39f9ab3aa7503f370d104fcbb0ac5fb93c29800b4281d8514368c3cbcb27e1ab5818f6e240054503255fb1
SHA1 hash: 4b4f0cb617b2d0c2f7c1b8d60cd5be491aa199b5
MD5 hash: fc6a06332c581b5aa4cff82f4102b833
humanhash: harry-eight-magazine-wisconsin
File name:Ref. #20880 Purchase Order&Contract.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'361'920 bytes
First seen:2021-06-14 05:30:57 UTC
Last seen:2021-06-14 06:48:44 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 24576:fHb55LxWHUZqYcpo19Ulr1zV7DybFnhaMEFMkPL5G:fH/eUZqE3UltVnyhnhaM0PL
TLSH B855481169304419ECEE4DB0402992EB0AE2EE4B6614A56FEB807F1FD97134CFDDA6F1
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
45.137.22.56:65535

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
45.137.22.56:65535 https://threatfox.abuse.ch/ioc/104426/

Intelligence

File Origin
# of uploads :
2
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Ref. #20880 Purchase Order&Contract.exe
Verdict:
Malicious activity
Analysis date:
2021-06-14 05:31:34 UTC
Tags:
trojan nanocore rat
Link:
https://app.any.run/tasks/595c6aca-491a-4809-a88b-649f54a133e2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.UDS.Backdoor.MSIL.NanoBot.gen.13651.25486.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/28532620-083f-46b5-bf15-6b70fbd3aad6
Result
Threat name:
NanoCore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/801507
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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 submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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: 433903 Sample: Ref. #20880 Purchase Order&... Startdate: 14/06/2021 Architecture: WINDOWS Score: 100 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 10 other signatures 2->46 7 Ref. #20880 Purchase Order&Contract.exe 7 2->7         started        process3 file4 30 C:\Users\user\AppData\...30LiHaWDnGWSKw.exe, PE32 7->30 dropped 32 C:\Users\user\AppData\Local\...\tmpA5DC.tmp, XML 7->32 dropped 34 Ref. #20880 Purcha...er&Contract.exe.log, ASCII 7->34 dropped 48 Adds a directory exclusion to Windows Defender 7->48 50 Injects a PE file into a foreign processes 7->50 11 Ref. #20880 Purchase Order&Contract.exe 7->11         started        16 powershell.exe 23 7->16         started        18 powershell.exe 24 7->18         started        20 2 other processes 7->20 signatures5 process6 dnsIp7 38 45.137.22.56, 49743, 49746, 49747 ROOTLAYERNETNL Netherlands 11->38 36 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 11->36 dropped 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->52 22 conhost.exe 16->22         started        24 conhost.exe 18->24         started        26 conhost.exe 20->26         started        28 conhost.exe 20->28         started        file8 signatures9 process10
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/73662984d71a5d721274bd1b5ac416730f76260b459156a983290e6b92794d91/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-06-14 02:54:58 UTC
AV detection:
2 of 46 (4.35%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ontctbgxdjoxeetuxunvvrawomhxmjqliwivnkmdfehgxetzjwiq._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210614-6daqehsfqx/
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:
45.137.22.56:65535
127.0.0.1:65535
Unpacked files
SH256 hash:
82fe42ffa7c2160c4ba79b666ba52f6dce210e0be5cbbb1419ddf3058215568b
MD5 hash:
a7c717e07a9e8fc3408914687859cf8a
SHA1 hash:
862f0e3f4f99c7674a540327ba08792e8a6cf5a1
Link:
https://www.unpac.me/results/0fc68a37-513b-42f7-832f-d103300df1de/
SH256 hash:
73662984d71a5d721274bd1b5ac416730f76260b459156a983290e6b92794d91
MD5 hash:
fc6a06332c581b5aa4cff82f4102b833
SHA1 hash:
4b4f0cb617b2d0c2f7c1b8d60cd5be491aa199b5
Link:
https://www.unpac.me/results/0fc68a37-513b-42f7-832f-d103300df1de/
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/73662984d71a5d721274bd1b5ac416730f76260b459156a983290e6b92794d91

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.

Comments