MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f307e0d3149b789560fdd22eebac68d693e027f4d7bbbed250a55d88f5b4d2b9. 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: 10


Intelligence 10 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f307e0d3149b789560fdd22eebac68d693e027f4d7bbbed250a55d88f5b4d2b9
SHA3-384 hash: 4971785d5a1d18c83e1cca91cd417e2ba17d11919ab403b636b818c403a400317352495b95f8cd5a2332d86a5319d744
SHA1 hash: 6d89b9cf5f3c23c9331479e187a78cdeb3720f4a
MD5 hash: 15aec685549840a406868dc136f12ddc
humanhash: orange-neptune-nuts-artist
File name:Purchase Order-877.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:804'352 bytes
First seen:2021-03-31 14:55:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:FDtX9YIhkrSIACFJUSMB1A/j3lOln+kbz1bfEqbpnQcEA3xAaDK/FwAzadJH5R4:RBhEStCFJpw1A5OYkvCYpQcEdaDDAGJ0
Threatray 63 similar samples on MalwareBazaar
TLSH 2005CF22221ABF56D43F85F508E8574262F34FD51E19EBF87C509E9072C62C2BAD16CB
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
185.191.231.252:38884

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.191.231.252:38884 https://threatfox.abuse.ch/ioc/6025/

Intelligence

File Origin
# of uploads :
1
# of downloads :
142
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Purchase Order-877.exe
Verdict:
Malicious activity
Analysis date:
2021-03-31 15:03:29 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/935eafb3-a182-4714-9c49-a0f342bf9e52

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/129436/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.576-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/660536
Signature
.NET source code contains potential unpacker
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)
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
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 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: 379198 Sample: Purchase Order-877.exe Startdate: 31/03/2021 Architecture: WINDOWS Score: 100 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 13 other signatures 2->60 8 Purchase Order-877.exe 3 2->8         started        11 dhcpmon.exe 2 2->11         started        13 Purchase Order-877.exe 2 2->13         started        15 dhcpmon.exe 3 2->15         started        process3 file4 48 C:\Users\user\...\Purchase Order-877.exe.log, ASCII 8->48 dropped 17 Purchase Order-877.exe 1 15 8->17         started        22 dhcpmon.exe 11->22         started        24 dhcpmon.exe 11->24         started        26 Purchase Order-877.exe 2 13->26         started        28 Purchase Order-877.exe 13->28         started        30 dhcpmon.exe 2 15->30         started        process5 dnsIp6 50 holyboys.ddns.net 185.191.231.252, 38884, 49734, 49738 UNREAL-SERVERSUS Netherlands 17->50 52 192.168.2.1 unknown unknown 17->52 40 C:\Program Files (x86)\...\dhcpmon.exe, PE32 17->40 dropped 42 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 17->42 dropped 44 C:\Users\user\AppData\Local\...\tmp6EFC.tmp, XML 17->44 dropped 46 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 17->46 dropped 62 Protects its processes via BreakOnTermination flag 17->62 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->64 32 schtasks.exe 1 17->32         started        34 schtasks.exe 1 17->34         started        file7 signatures8 process9 process10 36 conhost.exe 32->36         started        38 conhost.exe 34->38         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f307e0d3149b789560fdd22eebac68d693e027f4d7bbbed250a55d88f5b4d2b9/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-03-31 14:56:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
42
AV detection:
10 of 48 (20.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6md6buyutn4jkyh52ixoxldi22j6aj7u26535usquvoyr5nu2k4q._file
Verdict:
unknown
Similar samples:
0f554bb19749e97d63525c4d964041e8d6fc149cb0aec5c4560cccf09babc39c
NanoCore
512bc5ca2e6103f2cb06df5287087ab881725db829de761cac9d011fe6df0003
NanoCore
553f8d4b64f3f490db02424ac3613857f2fa288a63442a78414fa5393feaf2c7
NanoCore
5feb824ac22902db874500c14ed90b21ac0cfdcff3c3ce161db23a8cf40d6244
NanoCore
bc0cc9f45e5a3b9f2f1815c4787849ebd8ab71d72aca809b687bc462ec9b5899
NanoCore
d338523f3836e958ad511ae3cca005a255a43bcc684174bf5928246fd477f2cc
NanoCore
d465ff22dc9be084281d48c3857b7fdc3fbd541717e2016627f75b8a4012838c
NanoCore
d6eb826bf4cae74f81e095511c5314a88729608d50c242c3912c21b1c4408b98
NanoCore
ec379ea581609100b8ddfcf28eea0dc40ce72fb9e9f3dd310e0dfbeaf06bef0f
NanoCore
f13afdd20e5dbe1fe6bc73b81b8c91604d125a1833b6a14fb9efbeb575ec73ee
NanoCore
+ 53 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210331-npkx23fdmx/
Behaviour
Creates scheduled task(s)
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
NanoCore
Malware Config
C2 Extraction:
holyboys.ddns.net:38884
185.191.231.252:38884
Unpacked files
SH256 hash:
d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb
MD5 hash:
00cbf73d8b9f03417a3a32957ec64ed4
SHA1 hash:
b862eff1cf240a5ad5325fd258892e534484a6e8
Link:
https://www.unpac.me/results/1e01e562-e456-4790-aa8f-f1c721645571/
SH256 hash:
f307e0d3149b789560fdd22eebac68d693e027f4d7bbbed250a55d88f5b4d2b9
MD5 hash:
15aec685549840a406868dc136f12ddc
SHA1 hash:
6d89b9cf5f3c23c9331479e187a78cdeb3720f4a
Link:
https://www.unpac.me/results/1e01e562-e456-4790-aa8f-f1c721645571/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/f307e0d3149b789560fdd22eebac68d693e027f4d7bbbed250a55d88f5b4d2b9

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:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
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_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: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.

Cape
Cape
https://www.capesandbox.com/analysis/129436/

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