MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a748ce02905bed11e738d78ffd3c0b123469e8284e3a0d87c135ac576a4aa9ca. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: a748ce02905bed11e738d78ffd3c0b123469e8284e3a0d87c135ac576a4aa9ca
SHA3-384 hash: d8f7bfadd114ba7ce211c6740b8715e1aa2453ebb47bc8f0bc0e14d2620b75880680651a88287fd7591cf1c9b53b6761
SHA1 hash: f915e9594ab777b85ca9c458ef4d5aecac3b2dda
MD5 hash: f5dda8346eafd12535dd8271e44bd5bc
humanhash: berlin-hotel-india-four
File name:MT103-Advance.Payment..pdf.exe
Download: download sample
Signature NanoCore
File size:644'608 bytes
First seen:2021-11-29 04:20:17 UTC
Last seen:2021-11-29 13:45:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:9RpYcrq3cPAHSf0PPtoFuIXZ4DXzc89e2S6VratkvGFEpgVv592IVZaJH:9RpYcrbXf0PPtoFuIJKe2SgratkvaEiW
Threatray 3'351 similar samples on MalwareBazaar
TLSH T1FBD423243FB4C738C7794B32416948165FBB79432401E307FB9470DAE9E37866E9A28E
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
2
# of downloads :
243
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MT103-Advance.Payment..pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-11-29 04:23:55 UTC
Tags:
rat nanocore

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Result
Threat name:
Nanocore
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: NanoCore
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-29 00:51:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
NanoCore
Malware Config
C2 Extraction:
naki.airdns.org:56281
37.120.210.211:56281
Unpacked files
SH256 hash:
cb22dc2fe7fa548c6ae0fc87f5fa148b2e94856fb86cdc7b772eab6184b11030
MD5 hash:
e75815e00b7d7c8de3627eb745651282
SHA1 hash:
e3d34882533e689cf899f54f3fe0e450e27cdd91
SH256 hash:
b19104b568ca3ddccc2a8d3d10ecddb1ea240171e798dc3a486292cfa14b6365
MD5 hash:
7b0900da932f4ed9630d65b04422736d
SHA1 hash:
6fa340436e3a8e73ae2b3e911f861483183c68ef
SH256 hash:
a748ce02905bed11e738d78ffd3c0b123469e8284e3a0d87c135ac576a4aa9ca
MD5 hash:
f5dda8346eafd12535dd8271e44bd5bc
SHA1 hash:
f915e9594ab777b85ca9c458ef4d5aecac3b2dda
Malware family:
NanoCore
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 a748ce02905bed11e738d78ffd3c0b123469e8284e3a0d87c135ac576a4aa9ca

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment

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