MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6feb89ece67539d93864620d099b97d3109340c0edd876122a91f9c9eb45e940. 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: 13


Intelligence 13 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6feb89ece67539d93864620d099b97d3109340c0edd876122a91f9c9eb45e940
SHA3-384 hash: f64a2506f062170cbb09205d533a7cff2308b311579ba7651fc6dad0fcad4576cab020b428b1f6bf1ca59519c25441c1
SHA1 hash: 021b0a86ca605d87a476e38af1ec2a1bce799ef1
MD5 hash: adb83340137afd6849544109fcbec5ce
humanhash: montana-uncle-gee-mirror
File name:test2.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:175'616 bytes
First seen:2022-05-24 19:12:21 UTC
Last seen:2022-05-24 19:57:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 192:WofpUzeXHF3NkzvhY/ItkXK9PFtk+7Y/K6GDDDDDDDD/b3bnbZbZbZxdxdxdxdJt:W96lyvC/ItkM9tko6LMdxFY0x0hAm
Threatray 5'039 similar samples on MalwareBazaar
TLSH T1D8042C889D5CC61CEE29FAB10833D170CE2AFFCABA4C9995E044FBD6397512186DD835
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon b9dc8cccdeded9b8 (12 x AgentTesla, 7 x Formbook, 7 x NanoCore)
Reporter MichaelGalde
Tags:exe NanoCore

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
74.201.28.111:141 https://threatfox.abuse.ch/ioc/630791/

Intelligence

File Origin
# of uploads :
2
# of downloads :
333
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
test.exe
Verdict:
Malicious activity
Analysis date:
2022-05-24 19:08:28 UTC
Tags:
agenttesla opendir
Link:
https://app.any.run/tasks/fbdf56e3-db93-40ac-a09a-9bdab97c883b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/274252/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed wacatac
Link:
https://www.filescan.io/uploads/628d2e5765e33815993844cc/reports/1d1594c5-0d9d-4442-b54c-9a6994f55c00/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
AZORult
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c92a7156-6c2e-45f6-aee0-6d9ff5fca6c6
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1000995
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Writes to foreign memory regions
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 633491 Sample: test2.exe Startdate: 24/05/2022 Architecture: WINDOWS Score: 100 57 Snort IDS alert for network traffic 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 5 other signatures 2->63 7 test2.exe 16 7 2->7         started        12 Rookyw.exe 14 4 2->12         started        14 Rookyw.exe 3 2->14         started        process3 dnsIp4 55 3.70.157.79, 49711, 49753, 49754 AMAZON-02US United States 7->55 47 C:\Users\user\AppData\Roaming\...\Rookyw.exe, PE32 7->47 dropped 49 C:\Users\user\...\Rookyw.exe:Zone.Identifier, ASCII 7->49 dropped 51 C:\Users\user\AppData\Local\...\test2.exe.log, ASCII 7->51 dropped 67 Writes to foreign memory regions 7->67 69 Allocates memory in foreign processes 7->69 71 Injects a PE file into a foreign processes 7->71 16 InstallUtil.exe 9 7->16         started        21 cmd.exe 1 7->21         started        73 Multi AV Scanner detection for dropped file 12->73 23 cmd.exe 1 12->23         started        25 InstallUtil.exe 12->25         started        27 cmd.exe 14->27         started        29 InstallUtil.exe 14->29         started        31 InstallUtil.exe 14->31         started        file5 signatures6 process7 dnsIp8 53 74.201.28.111, 141, 49755, 49756 DEDIPATH-LLCUS United States 16->53 45 C:\Users\user\AppData\Roaming\...\run.dat, data 16->45 dropped 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->65 33 conhost.exe 21->33         started        35 timeout.exe 1 21->35         started        37 conhost.exe 23->37         started        39 timeout.exe 1 23->39         started        41 conhost.exe 27->41         started        43 timeout.exe 27->43         started        file9 signatures10 process11
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6feb89ece67539d93864620d099b97d3109340c0edd876122a91f9c9eb45e940/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-05-24 19:13:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
20 of 26 (76.92%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n7vyt3hgou45sodemigqtg4x2mijgqga5xmhmerksh44t22f5faa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0b1396805e736275f16550f3ecc5361cfcccc468094b4ea910ded8eaf430a5b3
NanoCore
263565e9f77b5ee48474855d471315dd56d1bcabe4d037fb380d404b3afcd14e
NanoCore
45272694709263868523b77d0561757378cc2e8aa7d64c7ed21deaacbdf88b5b
NanoCore
7709c1a46eff201524b42caaecba9ce963f7580e77d7b9c32059aaf3acfb248a
NanoCore
862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
8bf0518cd0c607aa51073dfe422f6af43ab8b43523bd0c182cc6172c9ecb9072
NanoCore
ddb292ac2c57e10703a5358532be2d46e4d5ea94361fd30be3c1e2bfb919621f
NanoCore
+ 5'029 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220524-xw2yraabcj/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
NanoCore
Malware Config
C2 Extraction:
74.201.28.111:141
Unpacked files
SH256 hash:
6feb89ece67539d93864620d099b97d3109340c0edd876122a91f9c9eb45e940
MD5 hash:
adb83340137afd6849544109fcbec5ce
SHA1 hash:
021b0a86ca605d87a476e38af1ec2a1bce799ef1
Link:
https://www.unpac.me/results/b4ca28d9-ba6e-4e53-b3c2-cbfeb48c7fee/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6feb89ece675/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/6feb89ece67539d93864620d099b97d3109340c0edd876122a91f9c9eb45e940

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/274252/

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