MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27. 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: 9


Intelligence 9 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27
SHA3-384 hash: 04296901bfe89c8a373db74b9c600d79f016ecf9fe13726656e2af03d2d2ddbadd4847ddafa7a58ce1805771f0df3d4c
SHA1 hash: 29bbbebf07f7264d1689baf8ab61ed4a0a36b2dc
MD5 hash: 33d8c6f19597b4c6d441bad201144e53
humanhash: utah-apart-blue-charlie
File name:payment advice.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:33'792 bytes
First seen:2022-02-28 06:51:41 UTC
Last seen:2022-02-28 19:04:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 384:WGxjUQEdy+yK9HE3/Afi7B02PZpBvgOeHItoUtPx+0b:ljUYTUHEvAfS/PZp92fOp+4
Threatray 4'312 similar samples on MalwareBazaar
TLSH T123E23CC6F789C365ECE7163449379F000357FE1B78511A1929C5B61B3F7324298AB61B
File icon (PE):PE icon
dhash icon e0e4a3a6a4b8b8a8 (37 x Formbook, 9 x AZORult, 9 x Loki)
Reporter cocaman
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
2
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/245149/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware obfuscated packed shell32.dll update.exe
Link:
https://www.filescan.io/uploads/621c71170cd58dbd9250e463/reports/f532fb2b-ee4a-4f87-825e-b27be0e33033/overview
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.
Gathering data
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/947126
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: NanoCore
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 579607 Sample: payment advice.exe Startdate: 28/02/2022 Architecture: WINDOWS Score: 100 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Antivirus detection for URL or domain 2->43 45 10 other signatures 2->45 6 payment advice.exe 15 3 2->6         started        10 dhcpmon.exe 2 2->10         started        process3 dnsIp4 31 172.217.168.14 GOOGLEUS United States 6->31 33 8.8.8.8 GOOGLEUS United States 6->33 35 2 other IPs or domains 6->35 25 C:\Users\user\...\payment advice.exe.log, ASCII 6->25 dropped 12 RegAsm.exe 1 12 6->12         started        17 RegAsm.exe 6->17         started        19 RegAsm.exe 6->19         started        21 RegAsm.exe 6->21         started        23 conhost.exe 10->23         started        file5 process6 dnsIp7 37 212.192.241.164 RAPMSB-ASRU Russian Federation 12->37 27 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 12->27 dropped 29 C:\Program Files (x86)\...\dhcpmon.exe, PE32 12->29 dropped 47 Hides that the sample has been downloaded from the Internet (zone.identifier) 12->47 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-02-28 02:14:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
20 of 28 (71.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p7tzv47bwnobmava5h33pnxtjcqbwsalq4cn7parq5d675dgvytq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
263565e9f77b5ee48474855d471315dd56d1bcabe4d037fb380d404b3afcd14e
NanoCore
4f7da7d6fb331a8098d4ce354690ffc64d8f0225307b406e722548109e669d4d
NanoCore
55aea4a4530e0aa4d13d4c68b9027e6a215bc4a4eaa87d2a8bfdc2c443dd3d7c
NanoCore
862965d573744607a29489905cfc8abdd8f187874d476ef4263eee7e5175630a
NanoCore
c59c8e3be7ec42553ff6af2588e3bcd0569e9467dbb9307218fb8724e02739f2
NanoCore
db7d1bc1cf6fb7fdbc3d0fc2c67c97ed89aa316d6bcb4c4e6ce942c9145612fc
NanoCore
+ 4'302 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer suricata trojan
Link:
https://tria.ge/reports/220228-hm325aehdk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
derarawfile10.ddns.net:1187
212.192.246250:1187
Unpacked files
SH256 hash:
7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27
MD5 hash:
33d8c6f19597b4c6d441bad201144e53
SHA1 hash:
29bbbebf07f7264d1689baf8ab61ed4a0a36b2dc
Link:
https://www.unpac.me/results/e4517d62-c21e-4dc6-8a28-d018955e8856/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/7fe79af3e1b3/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/7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27

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_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research

File information

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

Malspam

NanoCore

zip 6a3db937a1aaa1e6619e3525963e74eafff6ac89a8e560f9bd02be5bdfbaef53

NanoCore

Executable exe 7fe79af3e1b35c1602a0e9f7b7b6f348a01b480b8704dfbc118747eff466ae27

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 6a3db937a1aaa1e6619e3525963e74eafff6ac89a8e560f9bd02be5bdfbaef53
Cape
Cape
https://www.capesandbox.com/analysis/245149/

Comments