MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d2b81427fe1f056fcb3678852c1f56cb4dc21fe8c3cc7dc9f83cb77144284164. 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 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d2b81427fe1f056fcb3678852c1f56cb4dc21fe8c3cc7dc9f83cb77144284164
SHA3-384 hash: 2702d5108505ddda40a42e55acd4854c50cddc01fb5b9251714b1f8ed071ed8a10e031cbaae682f14ad4664a477064fc
SHA1 hash: d97cd139fb7ddccb278ecd2716eebe266636d9fa
MD5 hash: 25db6c7e7b28bea9a5ca04f8834e88f1
humanhash: spring-pennsylvania-seventeen-football
File name:invoice & packing list.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:949'248 bytes
First seen:2020-08-31 06:24:54 UTC
Last seen:2020-08-31 06:55:08 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:gnQ0J8hgRp1zWAqgtFoL9nW8ARu3id0Z/u1XzE3ROMABJ:yEeRp1zWAqgtCpnW8ARNdGuxz+8J
Threatray 10'589 similar samples on MalwareBazaar
TLSH 0A153882B61CB5B6E56F0AB0C831118266F07DE95BE5601FAF893C6E37733750056AF2
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: success.herosite.pro
Sending IP: 23.111.148.162
From: parashar <parashar.pael@pioneerindustries.org>
Subject: Customs documents for shipment
Attachment: invoice packing list.r00 (contains "invoice & packing list.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53284/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.276.24544.32447.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Sending a UDP request
Stealing user critical data
Enabling autorun
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454938
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279815 Sample: invoice & packing list.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 40 Antivirus detection for dropped file 2->40 42 Antivirus / Scanner detection for submitted sample 2->42 44 Multi AV Scanner detection for dropped file 2->44 46 7 other signatures 2->46 7 invoice & packing list.exe 7 2->7         started        process3 file4 34 C:\Users\user\AppData\Local\...\name.exe.lnk, MS 7->34 dropped 36 C:\Users\...\invoice & packing list.exe.log, ASCII 7->36 dropped 38 C:\Users\user\AppData\Local\Temp\svhost.exe, PE32 7->38 dropped 50 Injects a PE file into a foreign processes 7->50 11 invoice & packing list.exe 2 7->11         started        14 cmd.exe 1 7->14         started        16 cmd.exe 3 7->16         started        19 cmd.exe 1 7->19         started        signatures5 process6 file7 52 Tries to steal Mail credentials (via file access) 11->52 54 Tries to harvest and steal browser information (history, passwords, etc) 11->54 21 reg.exe 1 1 14->21         started        24 conhost.exe 14->24         started        30 C:\Users\user\AppData\Local\Temp\...\name.exe, PE32 16->30 dropped 26 conhost.exe 16->26         started        32 C:\Users\user\...\name.exe:Zone.Identifier, ASCII 19->32 dropped 28 conhost.exe 19->28         started        signatures8 process9 signatures10 48 Creates an undocumented autostart registry key 21->48
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d2b81427fe1f056fcb3678852c1f56cb4dc21fe8c3cc7dc9f83cb77144284164/
Threat name:
ByteCode-MSIL.Trojan.SmartAssembly
Create hunting rule
Status:
Malicious
First seen:
2020-08-30 23:08:46 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2k4bij76d4cw7szwpccsyh2wzng4eh7iypgh3spyhs3xcrbiifsa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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NanoCore
+ 10'579 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200831-h5yldp5nlj/
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d2b81427fe1f056fcb3678852c1f56cb4dc21fe8c3cc7dc9f83cb77144284164

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

NanoCore

r00 ea0cb3d22a71aad38ab96284e9c4ec20542a184543dc3d7f31c1d603d74aed19

NanoCore

Executable exe d2b81427fe1f056fcb3678852c1f56cb4dc21fe8c3cc7dc9f83cb77144284164

(this sample)

  
Dropped by
MD5 f6f9efd05335bfc0ca364e3e4905491a
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 ea0cb3d22a71aad38ab96284e9c4ec20542a184543dc3d7f31c1d603d74aed19
Cape
Cape
https://www.capesandbox.com/analysis/53284/

Comments