MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 500993334540fe89b080d37fcfe6c1a46745e668232cca7f672925674b38761c. 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: 500993334540fe89b080d37fcfe6c1a46745e668232cca7f672925674b38761c
SHA3-384 hash: 9c0573e6f9a883c526e9ae232415c2a6521fc6ccf2c5ed355355b6363857cbd3eb68cdcf3c1935466276cdf76d6b1333
SHA1 hash: 299e38607281bf9502189155be9db77ee9b154ac
MD5 hash: 37aa5a40f887d4af4058ed721e3b400d
humanhash: minnesota-spaghetti-black-beryllium
File name:CV_JOB REQUEST_Pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:493'056 bytes
First seen:2020-07-07 12:41:24 UTC
Last seen:2020-07-08 10:46:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:kMvByE1k4j2XSiFlXd0Y4SaXXV/8g/6rxdNHtiD5ZCV661OU+BHtCOn81WXPHsh/:RTU+xBn2PSnHpYG/mv9
Threatray 1'493 similar samples on MalwareBazaar
TLSH 02A4AC3122A5AF86C93A8BF5651425405FB429AF627DD26C7DC030CF15EAF044EA6FB3
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: gmail.com
Sending IP: 209.58.149.65
From: Deborah_Fankhauser <kakajanabdiye@gmail.com>
Subject: CV_JOB REQUEST
Attachment: CV_JOB REQUEST_Pdf.iso (contains "CV_JOB REQUEST_Pdf.exe")

NanoCore RAT C2:
yaunywxb.ddns.net:2451 (105.112.100.238)

Intelligence

File Origin
# of uploads :
2
# of downloads :
120
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/22259/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
DNS request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Sending a TCP request to an infection source
Enabling autorun with Startup directory
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/500993334540fe89b080d37fcfe6c1a46745e668232cca7f672925674b38761c/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-07-07 11:25:11 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kaezgm2fid7itmea2n747zwburtulztiemwmu73hfeswoszyoyoa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
emotet
Create hunting rule
Similar samples:
02b10c6690bd0ed3e9b675553519df78a7ede63a398d68304043eacb691fd305
NanoCore
24fe76a4e6cd5623f2326d2f43de09b9b6f4de236e80ea5aca50b76da888c0af
NanoCore
3ec241071c7e4652915d56d349936696967e54a34d4943a51bdb20a91893331b
NanoCore
68101d145825fc980210f1f56638011d98eeaf5c53fb734b62a80dac6489f2e3
NanoCore
90474a0270106b33e3208a63041d2e4d013b1d2b415bf3bf44e9a5ab685d0531
NanoCore
a4d6c0a909365bd89fdf812fbb75f92edc06fcd2a9a7b3c6d9b553ffe124858f
NanoCore
be1a45ae85bb530727a5e96d3dc19eeb0542991ddb5a747b93665b4599c70ea0
NanoCore
c70637a7eb05b36175b101211cda02663eeefff3ea85b0742c5be6f7badd0a75
NanoCore
e1bf95bd96a59075ac24eec7c47b3142361ea79c1fb68e2b6039212fba523449
NanoCore
e4174e1702d046eb696fb13f9d7be26c7b519179ac94212ce61de97ed586cf10
NanoCore
+ 1'483 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200707-qxkr3n2432/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run entry to start application
Checks whether UAC is enabled
NanoCore
Malware Config
C2 Extraction:
yaunywxb.ddns.net:2451
Please note that we are no longer able to provide a coverage score for Virus Total.

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

iso 1ded7387c39ab747dfcb6f77c6e524c1e78a2c971f3068513b3c844c7105d1df

NanoCore

Executable exe 500993334540fe89b080d37fcfe6c1a46745e668232cca7f672925674b38761c

(this sample)

  
Dropped by
MD5 a15655f2640c79a7c521d3d9b0374e41
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/22259/
  
Dropped by
SHA256 1ded7387c39ab747dfcb6f77c6e524c1e78a2c971f3068513b3c844c7105d1df

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