MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c
SHA3-384 hash: 0ff34c7c449b6ad2f93659f337a6eaeae91d69b1196a4b9e343dd5053dad800ad665fbe9013806bdbed67774c2670de4
SHA1 hash: de5bc22d6558a46f99784598f550a3affab19ada
MD5 hash: c97f7f2dea671626ab1c6d3d1ad59422
humanhash: kilo-fish-pennsylvania-hydrogen
File name:eReceiptpdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:182'200 bytes
First seen:2021-10-27 01:01:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:Mc7omjUjSljUDwSFxCCSQUMzTjSMzTjoIe1Uhkef:Mc7omnjUcSDCCSHBe
Threatray 3'354 similar samples on MalwareBazaar
TLSH T14404172123D89919F0BFBB3555B640000BF2B4C3DB36C76EA56450AE0E626C64F7B76B
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
45.133.1.211:8655

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
45.133.1.211:8655 https://threatfox.abuse.ch/ioc/237943/

Intelligence

File Origin
# of uploads :
1
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200356/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.4682.26347.23152.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Adding an access-denied ACE
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed packed
Link:
https://www.filescan.io/uploads/6178a50ca9d585e6d53a2ed0/reports/a114aa21-e4e5-4ad6-8875-8dff4d95c224/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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c34bcfc1-0ac2-4703-a4dc-5d53be825d0d
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/877421
Signature
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)
Hides threads from debuggers
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: NanoCore
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses dynamic DNS services
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 509854 Sample: eReceiptpdf.exe Startdate: 27/10/2021 Architecture: WINDOWS Score: 100 34 zeegod.duckdns.org 2->34 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 6 other signatures 2->50 7 eReceiptpdf.exe 15 2 2->7         started        11 dhcpmon.exe 14 3 2->11         started        signatures3 process4 dnsIp5 36 cdn.discordapp.com 162.159.129.233, 443, 49715 CLOUDFLARENETUS United States 7->36 52 Hides threads from debuggers 7->52 54 Injects a PE file into a foreign processes 7->54 13 eReceiptpdf.exe 1 12 7->13         started        18 WerFault.exe 23 9 7->18         started        20 WerFault.exe 7->20         started        38 162.159.134.233, 443, 49718 CLOUDFLARENETUS United States 11->38 22 dhcpmon.exe 2 11->22         started        24 dhcpmon.exe 11->24         started        26 dhcpmon.exe 11->26         started        signatures6 process7 dnsIp8 40 zeegod.duckdns.org 45.133.1.211, 49716, 49717, 49721 DEDIPATH-LLCUS Netherlands 13->40 28 C:\Program Files (x86)\...\dhcpmon.exe, PE32 13->28 dropped 30 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 13->30 dropped 32 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 13->32 dropped 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->56 42 192.168.2.1 unknown unknown 18->42 file9 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-10-27 01:02:05 UTC
AV detection:
11 of 44 (25.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tns5xbjymu5lmmjsyi7elbjnkrk4ttdgczk7uil3ikudbmhp2jga._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
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4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
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5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
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9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
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9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
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a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 3'344 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/211027-bdsrgaadh5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
zeegod.duckdns.org:8655
Unpacked files
SH256 hash:
b8b16b0cb1c8b9b082e0e995c14ec3367df3492da236d694c20b0fceadac4917
MD5 hash:
ab0da0b91e362cbfe36bfb2da926fc9b
SHA1 hash:
ae2e4872ca3930760456830942d4d8cd876bf16a
Link:
https://www.unpac.me/results/479de9d3-434a-4a6d-a6fc-e264d8645b1f/
SH256 hash:
9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c
MD5 hash:
c97f7f2dea671626ab1c6d3d1ad59422
SHA1 hash:
de5bc22d6558a46f99784598f550a3affab19ada
Link:
https://www.unpac.me/results/479de9d3-434a-4a6d-a6fc-e264d8645b1f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/9b65db8538653ab63132c23e45852d5455c9cc661655fa217b42a830b0efd24c

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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_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: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.

Cape
Cape
https://www.capesandbox.com/analysis/200356/

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