MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21770aa286de38738ddaf3b4237a794ed43f858019f33ed5d2cc570de0ab0eda. 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: 5


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

SHA256 hash: 21770aa286de38738ddaf3b4237a794ed43f858019f33ed5d2cc570de0ab0eda
SHA3-384 hash: 3b2b2ae8bee72b7812b1f32a44a1fa4f8db98991484ae7bf989b827e8b40718ff3dd63973917b8e506982e36a0dca0fb
SHA1 hash: 3a4b5ad18324bb8a238f9a2a1f66bc6bff5814ae
MD5 hash: 5e0f15e5665a0b965f213a12ed93e606
humanhash: victor-low-violet-tennessee
File name:MEDICAL DISPOSABLE.pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:376'320 bytes
First seen:2020-05-12 16:30:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:kc4SBkjuIRm378dNooyH6cRILZcdGRNxv+jmTJCSvMaQkIxisMpaku6hzts+9/T9:kDDooYKLkGvx5dCkRhaku0zts+9bwkA2
Threatray 1'588 similar samples on MalwareBazaar
TLSH C484E12672D8EB03C35E24FEDC91A25403B5E5A228C2E3C91CD166DD16D5BF35A42E8F
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: vzslave02rdns15.websouls.net
Sending IP: 54.36.46.238
From: Victor Zhang| <crpharm-ir@crpharm.com>
Subject: Disposable face mask, coverall, isloation gown, shoe cover. etc
Attachment: MEDICAL DISPOSABLE.pdf.zip (contains "MEDICAL DISPOSABLE.pdf.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-12 08:56:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 31 (67.74%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ef3qviug3y4hhdo26o2cg6tzj3kd7bmadhzt5voszrlq3yflb3na._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
dridex
Create hunting rule
Similar samples:
025dd1259e4f221e25144622733ef5de70d4f6fdfd9ec3e23558529f2ba80fea
NanoCore
1eee887b16c1d789c1869219de2609fbc29ef3ee0c0625f2907c71e9ba701daf
NanoCore
21dba41b37835f29fa4166786b44915d69109229a0fd19ee46d14cb2afa7c35b
NanoCore
2530a6515fbfa1c1828dfe9cf174709002d10b9ae832176fc98fe5679a23bf13
NanoCore
4100195b2a039c4612c9f9fc847470f49bf3e42978cb62fd24c8d9e8fd4324d8
NanoCore
866c0ed515a8b489e43ec168777e102573e313547b9c93f32d93203473502ae1
NanoCore
8ff2f39aeebe67fb77f29fed1cbdf9918dc2d3abbe924092f7b770eeb5c78ee5
NanoCore
ae807cf8d58d5a64f9275fc3394098c0fe2764d07d12482aa95f1b778257e6fe
NanoCore
dff01b9f8946ed3792fe4e32ae3f95834c892f16ca219dc99d78fd15064f82a2
NanoCore
e4392c3867a7b38a96f352f3249358e0144717bde4adf6473e5f994904a98bb3
NanoCore
+ 1'578 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/201109-y1xlelq9ya/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
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:
kachi2020.hopto.org:1918
185.165.153.19:1918
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

zip 5d28090559ddae9ba6e3ba76435906a1bb58a11ec0aeee43f746df928de3236a

NanoCore

Executable exe 21770aa286de38738ddaf3b4237a794ed43f858019f33ed5d2cc570de0ab0eda

(this sample)

  
Dropped by
MD5 104c151612803fcad4425844e0d236bd
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5d28090559ddae9ba6e3ba76435906a1bb58a11ec0aeee43f746df928de3236a

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