MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4737ea5151d02ccd6fdf58f879792c4e0b8a682005bdea63f28c373156d407cc. 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: 8


Intelligence 8 IOCs 1 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4737ea5151d02ccd6fdf58f879792c4e0b8a682005bdea63f28c373156d407cc
SHA3-384 hash: e5a4fcb09511b393667fe58f598107f66567f4121580bfb054da2749808727b8e8e02b96882ee6b4bdb5e79a42c5339d
SHA1 hash: bb55049cb1d427514beb00a08005fbb569329dc0
MD5 hash: a70791323ddba2afdde36530d5b2608e
humanhash: papa-king-wisconsin-delaware
File name:a70791323ddba2afdde36530d5b2608e.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:41'472 bytes
First seen:2021-06-21 07:02:07 UTC
Last seen:2021-06-21 08:11:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:m4pgajg/btxRJze1jhwTZV/k5tfzPnGfMkbkqRBt1jCYcIP:VgtnVe1jhwVV/k7GffHlXP
Threatray 2'068 similar samples on MalwareBazaar
TLSH 3A13D0409DECA43BD6B942BC65A7974587A396334412DB9FF84CA0277F633A209073A7
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
213.238.172.95:1923

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
213.238.172.95:1923 https://threatfox.abuse.ch/ioc/138069/

Intelligence

File Origin
# of uploads :
2
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a70791323ddba2afdde36530d5b2608e.exe
Verdict:
No threats detected
Analysis date:
2021-06-21 07:37:25 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d278feeb-5644-493f-95b0-554dbb1181f5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Packed.ConfuserEx-6582917-0
Create hunting rule

Result
Verdict:
MALICIOUS
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/80467033-c16f-489e-9532-1071aff7dd6d
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/805135
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 437550 Sample: lhj244LrcL.exe Startdate: 21/06/2021 Architecture: WINDOWS Score: 100 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 11 other signatures 2->57 8 lhj244LrcL.exe 15 23 2->8         started        12 dhcpmon.exe 3 2->12         started        14 sa.exe 3 2->14         started        16 dhcpmon.exe 2 2->16         started        process3 dnsIp4 49 transfer.sh 144.76.136.153, 443, 49723 HETZNER-ASDE Germany 8->49 39 C:\Program Files\sa.exe, PE32 8->39 dropped 41 C:\Users\user\AppData\...\lhj244LrcL.exe.log, ASCII 8->41 dropped 18 sa.exe 1 17 8->18         started        23 conhost.exe 8->23         started        43 C:\Users\user\AppData\...\dhcpmon.exe.log, ASCII 12->43 dropped 45 C:\Users\user\AppData\Local\...\sa.exe.log, ASCII 14->45 dropped file5 process6 dnsIp7 47 213.238.172.95, 1923, 49726, 49727 SPD-NETTR Turkey 18->47 33 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->33 dropped 35 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->35 dropped 37 C:\Users\user\AppData\Local\...\tmp8BFB.tmp, XML 18->37 dropped 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->59 25 schtasks.exe 1 18->25         started        27 schtasks.exe 1 18->27         started        file8 signatures9 process10 process11 29 conhost.exe 25->29         started        31 conhost.exe 27->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4737ea5151d02ccd6fdf58f879792c4e0b8a682005bdea63f28c373156d407cc/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-06-19 23:21:01 UTC
AV detection:
7 of 29 (24.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=i436uukr2awm2367ld4hs6jmjyfyu2baaw66uy7srq3tcvwua7ga._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
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5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
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9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
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9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'058 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/210621-zs5w1d9p7a/
Behaviour
Creates scheduled task(s)
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Downloads MZ/PE file
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
213.238.172.95:1923
127.0.0.1:1923
Unpacked files
SH256 hash:
4737ea5151d02ccd6fdf58f879792c4e0b8a682005bdea63f28c373156d407cc
MD5 hash:
a70791323ddba2afdde36530d5b2608e
SHA1 hash:
bb55049cb1d427514beb00a08005fbb569329dc0
Link:
https://www.unpac.me/results/5d28376c-9812-4590-9c57-bb0b2c021b18/
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/4737ea5151d02ccd6fdf58f879792c4e0b8a682005bdea63f28c373156d407cc

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:INDICATOR_EXE_Packed_ConfuserEx
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_NET_NAME_ConfuserEx
Create hunting rule
Author:Arnim Rupp
Description:Detects ConfuserEx packed file
Reference:https://github.com/yck1509/ConfuserEx

File information

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

Comments