MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0
SHA3-384 hash: 13684ddb7867787f1c3186304c5b0f8fe732ef5fbbaaa3c459e09a11cb0e653a433925d88dd3e480c82e152408872d80
SHA1 hash: 08573569369afb45841c4d81b4ade3b75f7600af
MD5 hash: 913491e68b3669d579d3fcc800ddaaab
humanhash: diet-coffee-cup-india
File name:EXP.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:873'472 bytes
First seen:2022-07-21 08:24:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:s/bpAF3Q4uDOCC9UEI2ecz77PknWBWi0BpPywSNzBxj:c+F3QxDLSU/2nz7NBWlBpPABt
TLSH T117051237A1F6F721CA3C47B110A21A881AF3701D3474F66A24ABF4E9C5E47DA66507E3
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293121/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.44349.11880.14868-222265.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62d90d9cee649612ac5edb6c/reports/4b3931ba-a1d1-4228-a19f-1c94f1dae74b/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/366f6509-49fd-40f9-bb5b-6edd29062b00
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038453
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 670947 Sample: EXP.exe Startdate: 21/07/2022 Architecture: WINDOWS Score: 100 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus detection for URL or domain 2->81 83 Multi AV Scanner detection for dropped file 2->83 85 13 other signatures 2->85 8 EXP.exe 7 2->8         started        12 EXP.exe 4 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 67 C:\Users\user\AppData\...\ucNCdubHlKcLt.exe, PE32 8->67 dropped 69 C:\...\ucNCdubHlKcLt.exe:Zone.Identifier, ASCII 8->69 dropped 71 C:\Users\user\AppData\Local\...\tmp8EE5.tmp, XML 8->71 dropped 73 C:\Users\user\AppData\Local\...XP.exe.log, ASCII 8->73 dropped 89 Uses schtasks.exe or at.exe to add and modify task schedules 8->89 91 Adds a directory exclusion to Windows Defender 8->91 93 Injects a PE file into a foreign processes 8->93 18 EXP.exe 1 14 8->18         started        23 powershell.exe 21 8->23         started        25 schtasks.exe 1 8->25         started        27 powershell.exe 12->27         started        29 schtasks.exe 12->29         started        33 2 other processes 12->33 31 powershell.exe 14->31         started        35 2 other processes 14->35 37 3 other processes 16->37 signatures5 process6 dnsIp7 75 derananocore.ddns.net 141.98.6.128, 1187, 49752 CMCSUS Germany 18->75 77 192.168.2.1 unknown unknown 18->77 61 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->61 dropped 63 C:\Users\user\AppData\Roaming\...\run.dat, data 18->63 dropped 65 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->65 dropped 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->87 39 schtasks.exe 1 18->39         started        41 schtasks.exe 18->41         started        43 conhost.exe 23->43         started        45 conhost.exe 25->45         started        47 conhost.exe 27->47         started        49 conhost.exe 29->49         started        51 conhost.exe 31->51         started        53 conhost.exe 35->53         started        55 conhost.exe 37->55         started        file8 signatures9 process10 process11 57 conhost.exe 39->57         started        59 conhost.exe 41->59         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2022-07-21 06:41:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=foestmnki2suark6s3wkqynrhyurkuzmqs5ppjaw2qgwozp2staa._file
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220721-ka911sedeq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks computer location settings
NanoCore
Malware Config
C2 Extraction:
derananocore.ddns.net:1187
194.87.84.135:1187
Unpacked files
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
SH256 hash:
fe46c824dbcff5537b7388ebc09dd8852a7fe8f3bc690ae2da245e0e2b01cb2e
MD5 hash:
8f921edbd8b92a84a7bcb306ebb1c86c
SHA1 hash:
a286d0abfb62a21a7e7ba9d30028d212cd107947
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
Parent samples :
838c8c2090fe5bda65dc44782f16ab7391afe32dc8e40d9e4ff478ff7b2876aa
55574f282bf7ca6ec118c1b23c25c52ee8cef783e03505f53ec3f45b0d9cc5be
4c15ff20f2843dcf836d49111ef6c3edf7f5580846eac6acda7a75da62629b56
951ab00dc85e3e85f785a53b6be93ae78b49c2a33c4fa0006097372a94cb59dc
8c0ff43e408c9ac58abaa4d75ec70945ae3cfcdf34d97da684f0723de8b521a1
d58c596621fcf7fe0514c4272a3567f427ab4392ce44febbb887b1bdecbe74fe
2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0
9c997bb5941de96a571243b7621bf577514cdc9818eb79b1116601fc31f3a17b
234c80363a755782bf545da03646b88427f2ea8d3b03a052ef0cdc350984292d
7be1ebef9b8c89dfc78deeacec9dc9e919ad50a10db4a20d14a53e370a6fdef4
930bf3214ee99887f3a7f6396d1ee98ee9f127d557de53740447044c1def49c8
9a1142a3ac9fd836fd21c7f71026cb5714c8fe5d4c12e702b733f2b0350ed6e7
8eb1487d6baf8f4e54d3a40ae27965dd13ccb2cdc2eb02f8fe46a556fbe3af45
7c6d7c9a34ec05f4b0ee92eda6c98b49a40976e48528059237e4242b9533a1e1
17a0e81b66dbeee4b2774d04039fbe7768072a7eee3be560fd497f82e8e7ea3b
e68e26013f6d2a9abcb85314e4c310e738409c7da0af83134437b606a6d7beb6
SH256 hash:
ca4e3745f87ae419e10fa9dd15e9814f66a7dca601ae70bd3ae3b0b0781e9491
MD5 hash:
6491ab64072f34a6124f4cdf1d9bdd43
SHA1 hash:
78008e0c188d1732ebb5bbfe6d15892ebe32b1f7
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
SH256 hash:
ce2968836016a0e84cfc9d80059829ade9304395608d3eda8b3aa045198830a2
MD5 hash:
12838bf055a0b869c63d3f5a260280da
SHA1 hash:
266f5f61f0d0c8e5c1506bad2b17e3882ed3b334
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
SH256 hash:
e721cbaa193bf4479e39216df5f1a6e91da6d4c13d0ddd02761437982112c7d4
MD5 hash:
16a9ef0c50f9727a2869f1c82c0c1bef
SHA1 hash:
19fecd055994b20e81a749bb61f8783395453897
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
SH256 hash:
2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0
MD5 hash:
913491e68b3669d579d3fcc800ddaaab
SHA1 hash:
08573569369afb45841c4d81b4ade3b75f7600af
Link:
https://www.unpac.me/results/870878f8-1fd6-41ce-80a1-e5521b97d12b/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2b8929b1aa46/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0

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.

Malspam

NanoCore

Executable exe 2b8929b1aa46a540455e96eca861b13e2915532c84baf7a416d40d6765fa94c0

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/293121/

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