MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 203ad3028bb58a9c55b2e7a55ca52d49b5f91e6259b864f0d8d53de4caf43f80. 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
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SHA256 hash: 203ad3028bb58a9c55b2e7a55ca52d49b5f91e6259b864f0d8d53de4caf43f80
SHA3-384 hash: 1c6d3394d64fe93563dfce64f6e8ca4dc79d5bfd20dfd05c173af54ec8120ab9fcd0aa84a61676bee8847614b861126b
SHA1 hash: 360a9d3f40823973932c043ea61488a05d718626
MD5 hash: 9a81ba9c904b6350390d13a22dd3b62b
humanhash: twenty-east-finch-golf
File name:Revised Purchase Order Details_pdf.pif
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'243'136 bytes
First seen:2021-05-25 06:22:26 UTC
Last seen:2021-05-25 07:04:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:7OHiIMm6k2D88yMVFfvYsnEi7Bs+XI9nLJkdBI84Tz:Wf6kuVFfwsnEiFD49nLJC
Threatray 2'146 similar samples on MalwareBazaar
TLSH 4A45181BF786BA65C15C2A7F5053191DA2D8C843A323FF6EC2949CE3790279646CB363
Reporter abuse_ch
Tags:NanoCore pif

Intelligence

File Origin
# of uploads :
2
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://alammedix.com/cms/Revised%20Purchase%20Order%20Details_pdf.zip
Verdict:
Malicious activity
Analysis date:
2021-05-25 10:37:16 UTC
Tags:
rat nanocore trojan
Link:
https://app.any.run/tasks/7edad634-1449-4966-9c28-00a21925777b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/161660/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.46355722.6813.26361.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Launching a process
Deleting a recently created file
Using the Windows Management Instrumentation requests
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Enabling autorun by creating a file
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.
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/791514
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
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)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 423912 Sample: Revised Purchase Order Deta... Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 8 other signatures 2->45 8 Revised Purchase Order Details_pdf.exe 15 4 2->8         started        12 RegAsm.exe 2->12         started        process3 file4 25 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 8->25 dropped 27 Revised Purchase O...Details_pdf.exe.log, ASCII 8->27 dropped 47 Writes to foreign memory regions 8->47 49 Allocates memory in foreign processes 8->49 51 Hides that the sample has been downloaded from the Internet (zone.identifier) 8->51 53 Injects a PE file into a foreign processes 8->53 14 RegAsm.exe 11 8->14         started        19 conhost.exe 12->19         started        signatures5 process6 dnsIp7 33 millykay.ddns.net 194.5.98.182, 49732, 49736, 49739 DANILENKODE Netherlands 14->33 29 C:\Users\user\AppData\Roaming\...\run.dat, data 14->29 dropped 31 C:\Users\user\AppData\Local\...\tmpE182.tmp, XML 14->31 dropped 35 Uses schtasks.exe or at.exe to add and modify task schedules 14->35 37 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->37 21 schtasks.exe 1 14->21         started        file8 signatures9 process10 process11 23 conhost.exe 21->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/203ad3028bb58a9c55b2e7a55ca52d49b5f91e6259b864f0d8d53de4caf43f80/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-05-25 01:36:54 UTC
AV detection:
6 of 47 (12.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ea5ngaulwwfjyvns46svzjjnjg27shtclg4gj4gy2u66jsxuh6aa._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
0e206f1cf56315c1d4245ca01cac08ebab51decab43760d40e43a754d27da7b6
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
8551c05301b50a17763637cca7f291a6b779c82f16275f734e793f6a0e7e1a17
NanoCore
be86e9fd2d5913526b7cea3bec1ad8c84acea8cab73ea78414e6317565f3079b
NanoCore
cce5d9e4fd5ca9142510f3b21d0a73906171e90a815520985687dde13b6e643d
NanoCore
e11f59ce9dae9fcff7ff4c8d3d119dd663a1918d084f8cda7b30c474cd141642
NanoCore
e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
NanoCore
e9c3fc00ddb08ef196d05b56ce0c83c04381de42e8777e902e3e9c7afe4a9f11
NanoCore
f29b0b35d584de9410f3ffe75e8e4dbc6d90ecbc6f2c4d9382d8faf33e88d80b
NanoCore
+ 2'136 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore agilenet evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210525-6dglk52y2n/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
millykay.ddns.net:5546
194.5.98.182:5546
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/203ad3028bb58a9c55b2e7a55ca52d49b5f91e6259b864f0d8d53de4caf43f80

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/161660/

Comments