MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4
SHA3-384 hash: eb7a2c7f4cc532b9866fd054b1c5ca0edfb6473a46b186be32e2c894aa659ff7dedb3f869e33642c7be3db7a1411e639
SHA1 hash: e9f4092c288d5a491528472e5c7b7610a25a200d
MD5 hash: 577af04414ea52d9d179b90bc48470a5
humanhash: don-thirteen-high-grey
File name:RFQ#Inquiry 215642.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:460'800 bytes
First seen:2020-08-14 08:47:56 UTC
Last seen:2020-08-14 09:42:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:MDNCuZrYrjuCyzRMo6lIqj8ASUvDjEN0yvsw4px0St35I2epHI3S59ba1/UD:MDNukVarj8ASIM0yFwvBbewSLba1/U
Threatray 1'111 similar samples on MalwareBazaar
TLSH 61A4E03A82F2E509C8BFF13D9319915BB1D79C5F1495C70AA99C3CD40E342E606A2DF9
Reporter abuse_ch
Tags:exe Hostwinds NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: hwsrv-762625.hostwindsdns.com
Sending IP: 104.168.242.71
From: CHRISTAL MS <tmemetal@singnet.com.sg>
Subject: RE: OFFER 215642
Attachment: RFQ _ Inquiry 215642.docx and Quotation Form.z (contains "RFQ#Inquiry 215642.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/45654/
Detection(s):
SecuriteInfo.com.Trojan.Siggen10.4036.766.9666.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
DNS request
Connection attempt to an infection source
Enabling autorun by creating a file
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/429053
Signature
.NET source code contains potential unpacker
Binary contains a suspicious time stamp
Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267015 Sample: RFQ#Inquiry 215642.exe Startdate: 15/08/2020 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Sigma detected: Scheduled temp file as task from temp location 2->43 45 9 other signatures 2->45 8 RFQ#Inquiry 215642.exe 7 2->8         started        11 RFQ#Inquiry 215642.exe 4 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\...\tmpE72E.tmp, XML 8->31 dropped 33 C:\Users\user\AppData\...\FArXCSdcskXNfR.exe, PE32 8->33 dropped 13 RFQ#Inquiry 215642.exe 8 8->13         started        17 schtasks.exe 1 8->17         started        19 schtasks.exe 1 11->19         started        21 RFQ#Inquiry 215642.exe 2 11->21         started        process5 dnsIp6 37 saocris.ddns.net 79.134.225.76, 1930, 49748, 49749 FINK-TELECOM-SERVICESCH Switzerland 13->37 35 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 13->35 dropped 23 schtasks.exe 1 13->23         started        25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        file7 process8 process9 29 conhost.exe 23->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 08:49:07 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=pqmyf6ekuwnj4iqlslribzh6dvd66brbjksxqrls62eedhr6p3ca._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
+ 1'101 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore evasion
Link:
https://tria.ge/reports/200814-lmna2ftrke/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
saocris.ddns.net:1930
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4

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_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.

Malspam

NanoCore

z ee8c46367596e91ab823d0d17b94ffd7094c1f513f4ca75936036f4980421276

NanoCore

Executable exe 7c1982f88aa59a9e220b92e280e4fe1d47ef06214aa5784572f688419e3e7ec4

(this sample)

  
Dropped by
MD5 d490159ddfb2b2a6c11890965aeedacf
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/45654/
  
Dropped by
SHA256 ee8c46367596e91ab823d0d17b94ffd7094c1f513f4ca75936036f4980421276

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