MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4983921d3469aff39daaa738072cdf18171a7c98184a0a810c9d81daac7082e4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4983921d3469aff39daaa738072cdf18171a7c98184a0a810c9d81daac7082e4
SHA3-384 hash: 160ad7defbb83210b717f94990ae782f5595d6d0f431482743d3b0bad52de0592aa2c1c58a3137e4969753bbb127eb63
SHA1 hash: 3e1ef73580022652ffc20bb399fe209d3007363a
MD5 hash: 7d49aab031e7600956d2629d3330039a
humanhash: fillet-fillet-december-kentucky
File name:Vanraj Modhvadiya CV.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:694'784 bytes
First seen:2020-07-27 14:58:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f0b426c30c849bf2a18dc2e1e256eecc (5 x MassLogger, 3 x NanoCore, 1 x AgentTesla)
ssdeep 12288:N9Fs8CaE9aKhI+P7jwfwvBgPqc9/ws9d6AVQ21CKpBs/J/oL4O:HKW6h37jqryc2s9dY215/eAL4O
Threatray 3'152 similar samples on MalwareBazaar
TLSH A0E4AEF2B2B04437D27326799D1B5768AC3ABE103D2868462BF51C4C5F39781396B2D7
Reporter jarumlus
Tags:NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Nanocore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/32935/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.Trojan.Delf.FareIt.Gen.7.19731.7728.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Launching a process
Deleting a recently created file
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with Startup directory
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/398880
Signature
.NET source code contains potential unpacker
Contains functionality to detect sleep reduction / modifications
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
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: 251674 Sample: Vanraj Modhvadiya CV.exe Startdate: 27/07/2020 Architecture: WINDOWS Score: 100 105 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->105 107 Found malware configuration 2->107 109 Malicious sample detected (through community Yara rule) 2->109 111 14 other signatures 2->111 12 Vanraj Modhvadiya CV.exe 2->12         started        15 Vanraj Modhvadiya CV.exe 2->15         started        17 wpasv.exe 2->17         started        19 wpasv.exe 2->19         started        process3 signatures4 123 Maps a DLL or memory area into another process 12->123 21 Vanraj Modhvadiya CV.exe 12->21         started        23 Vanraj Modhvadiya CV.exe 3 12->23         started        26 Vanraj Modhvadiya CV.exe 1 17 15->26         started        30 Vanraj Modhvadiya CV.exe 15->30         started        32 wpasv.exe 17->32         started        34 wpasv.exe 3 17->34         started        36 wpasv.exe 19->36         started        38 wpasv.exe 19->38         started        process5 dnsIp6 40 Vanraj Modhvadiya CV.exe 21->40         started        93 C:\Users\...\Vanraj Modhvadiya CV.exe.log, ASCII 23->93 dropped 103 izu2128.hopto.org 185.244.29.131, 2128, 49716 DAVID_CRAIGGG Netherlands 26->103 95 C:\Program Files (x86)\...\wpasv.exe, PE32 26->95 dropped 97 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 26->97 dropped 99 C:\Users\user\AppData\Local\...\tmpF04C.tmp, XML 26->99 dropped 101 C:\...\wpasv.exe:Zone.Identifier, ASCII 26->101 dropped 121 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->121 43 schtasks.exe 1 26->43         started        45 schtasks.exe 1 26->45         started        47 wpasv.exe 32->47         started        49 wpasv.exe 36->49         started        file7 signatures8 process9 signatures10 119 Maps a DLL or memory area into another process 40->119 51 Vanraj Modhvadiya CV.exe 40->51         started        53 Vanraj Modhvadiya CV.exe 40->53         started        55 conhost.exe 43->55         started        57 conhost.exe 45->57         started        59 wpasv.exe 47->59         started        61 wpasv.exe 47->61         started        63 wpasv.exe 49->63         started        65 wpasv.exe 49->65         started        process11 process12 67 Vanraj Modhvadiya CV.exe 51->67         started        70 wpasv.exe 59->70         started        72 wpasv.exe 63->72         started        signatures13 113 Maps a DLL or memory area into another process 67->113 74 Vanraj Modhvadiya CV.exe 67->74         started        76 Vanraj Modhvadiya CV.exe 67->76         started        78 wpasv.exe 70->78         started        80 wpasv.exe 70->80         started        82 wpasv.exe 72->82         started        84 wpasv.exe 72->84         started        process14 process15 86 Vanraj Modhvadiya CV.exe 74->86         started        89 wpasv.exe 78->89         started        signatures16 115 Maps a DLL or memory area into another process 86->115 117 Sample uses process hollowing technique 86->117 91 wpasv.exe 89->91         started        process17
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4983921d3469aff39daaa738072cdf18171a7c98184a0a810c9d81daac7082e4/
Threat name:
Win32.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-27 15:00:09 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jgbzehjungx7hhnku44aolg7dalru7eydbfavaimtwa5vldqqlsa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
hawkeyekeylogger
Create hunting rule
Similar samples:
290404d235fcb1fd5f5656a2d4b755416100c005f27f7f7fcbed7dfcdb9c2a2b
NanoCore
3fae7c91e798f1331cc235713cf63f74043a7fb2ce146b6b41fb188d2950babe
NanoCore
40a6a11fb68c57fc2576ccb1c7d389303ed8e7931f3f232d1f5246331cbf69d7
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841121eea932bf572bdad61acc6921567ce6bf9f50c6135150c14d3dc0a8a451
NanoCore
a5648053e625dbecf7e68266e78dd7cbc9f0ba8799f4c4eed6983af38a831860
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bdddf5f5fa10f55e58819ff4ae4cf11902c3583503fa8fcf50ce67b1f1f66e4f
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bf690b9b4ab2e0306b94b1a09431878786eb0fd6e858ac1f5d21c29a78b1f8d0
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cbddd0b1ba645aaa7f2ba1e24577d0d1c71766436a84cc75e5f09e2468e4aeec
NanoCore
d2702fb7486d03dab4633bf90d21b550fe27848b6263797eaa3d93393421af4a
NanoCore
eb301ee5bae45a4d93e8c88a0bfda61e962be4c5a5c00255ebdf5aa364f69341
NanoCore
+ 3'142 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
upx evasion trojan keylogger stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200727-b2mvldknf2/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Adds Run key to start application
UPX packed file
NanoCore
Malware Config
C2 Extraction:
izu2128.hopto.org:2128
185.244.29.131:2128
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Lokibot
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4983921d3469aff39daaa738072cdf18171a7c98184a0a810c9d81daac7082e4

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_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:win_nanocore_w0
Create hunting rule
Author: Kevin Breen <kevin@techanarchy.net>

File information

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

Malspam

NanoCore

zip ee01b51069cc562bccf9bd40ae38032041e809de32ddaee5e871eb11d2851400

NanoCore

Executable exe 4983921d3469aff39daaa738072cdf18171a7c98184a0a810c9d81daac7082e4

(this sample)

  
Dropped by
MD5 71901b5ce7fd0efac9fbe41920bc18b4
  
Dropped by
SHA256 ee01b51069cc562bccf9bd40ae38032041e809de32ddaee5e871eb11d2851400
  
Dropped by
NanoCore
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/32935/

Comments