MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71a5467a423eaf4df81e6fb5dbcd7f5ce639c4d18b20af5893afec80d2fcb72d. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 71a5467a423eaf4df81e6fb5dbcd7f5ce639c4d18b20af5893afec80d2fcb72d
SHA3-384 hash: df4356139e225378eba3702fd67bac46942ec8101ecd993f58f98aba5539fbf82892d029009335c6f9daabe3645bc1aa
SHA1 hash: b6e3287696b67f855bdffaa05121cd070b544d40
MD5 hash: fd22c43d80de9f593d80f8fc1b4cdd72
humanhash: lamp-arkansas-music-two
File name:TT-SOA, EUR 85,000.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:522'752 bytes
First seen:2020-10-27 12:54:10 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 6144:lq1jHi/xY464IrDaX/WLNt505hytiIwjxGsLmtUe0B:Gia4waeLT5jtBw0s6tQB
Threatray 843 similar samples on MalwareBazaar
TLSH 8EB43A2DF60DDE74D41A21744402E0F50411FEE5A952B31BFBC17E2BF9B368D0ADAA92
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: cloud-linux-07.chaiyohosting.com
Sending IP: 202.43.45.171
From: Asst. Manager PURCHASE <marketing@aplombtechbd.com>
Reply-To: bellemartinfo@bthr3.com
Subject: Re: TT /STATEMENT OF ACCOUNT- EUR 43,000
Attachment: TT-SOA, EUR 43,000.r00 (contains "TT-SOA, EUR 85,000.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Backdoor.MSIL.Kryptik.4322d86f.23803.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Running batch commands
Creating a process with a hidden window
Creating a window
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/513559
Signature
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/71a5467a423eaf4df81e6fb5dbcd7f5ce639c4d18b20af5893afec80d2fcb72d/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 09:24:02 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ogsum6sch2xu36a6n625xtl7lttdtrgrrmqk6wetv7wibux4w4wq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
18dddb92c78a57ec4c3eaa117c7db4840e30484a4934af1905451e01d82ba245
NanoCore
4610679e66c4bc8abdad4a742823ff3809de1fe5d4a983bbb0dd4eec02136a94
NanoCore
6c331442b5cc2b6bdec1c4ba1175373a44fabcfa6d342f2cd91315e22628be14
NanoCore
7cbe84a986434d919c2e616bfd9f78d94c9986bce211b34496e2d1139ff87f6b
NanoCore
7f58f70a483138bf0d7c25357b8dd87d6aa94f080cdd24333be6dd51390e45b2
NanoCore
865ace0d8291b403d80bcf26ebbc0adc9b108879fc6df41ea82be1c2c54ad17c
NanoCore
b6dac3c563e7b771fa56992d6c5ac321278e8ff4653b5f50f283855e672cdb3d
NanoCore
d4ad194829837ef26e4edc89c9a7bd0db40904f93517cdc137bc78176ef617fe
NanoCore
e4179e2d5b9c04e7a59bf9b063c006f5695b5ec90600833006d38129ad0a48a6
NanoCore
e788686b2a0e0efbf94e3f33a47e63494ca216e965191d82cd2922b8af6fe037
NanoCore
+ 833 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware
Link:
https://tria.ge/reports/201027-ay7t6rr12j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/71a5467a423eaf4df81e6fb5dbcd7f5ce639c4d18b20af5893afec80d2fcb72d

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_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

r00 287ecf4fae799472a66d12d3d46d7a8fb5db946a5aa7c5dd85ebe40230e9d81c

NanoCore

Executable exe 71a5467a423eaf4df81e6fb5dbcd7f5ce639c4d18b20af5893afec80d2fcb72d

(this sample)

  
Dropped by
MD5 01bbbf1ccc2c6f69d9e37c3af4ea9ea8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 287ecf4fae799472a66d12d3d46d7a8fb5db946a5aa7c5dd85ebe40230e9d81c

Comments