MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 923527e188f407ba2bba6d1570506c474519970bc29fbee47d16d01636e7a338. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments

SHA256 hash: 923527e188f407ba2bba6d1570506c474519970bc29fbee47d16d01636e7a338
SHA3-384 hash: 3f3ba3d80b741d7d2741f7b7186dc10d9e77348de082c5e580e9e59be23f7cbdf72bbafd1aca8c7febd55187f4a134aa
SHA1 hash: 45195a3e7038302845200e55c4f84fb91205b670
MD5 hash: 55251a95a7d595d3577e609a36b6992c
humanhash: nuts-twelve-sink-uniform
File name:QUOTATION.exe
Download: download sample
Signature NanoCore
File size:731'648 bytes
First seen:2022-06-07 08:00:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:DJYdy09qNo/Ht9y+1J90cmS+vmiwJBsWWaNhro4xz8abGrY:FYdy0Rln90cN+xwJBsotxz8ab
Threatray 5'070 similar samples on MalwareBazaar
TLSH T14FF4D090B3AAAF71F17D63F36410A00817F47A1E55A0D62A8EDDB0CE62B1B4259F1F17
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon cc00ecc4b6e400c4 (8 x Loki, 7 x AgentTesla, 7 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe NanoCore

Intelligence


File Origin
# of uploads :
1
# of downloads :
304
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
nanocore
ID:
1
File name:
QUOTATION.exe
Verdict:
Malicious activity
Analysis date:
2022-06-07 08:04:50 UTC
Tags:
rat nanocore trojan

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

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed replace.exe update.exe
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Detected Nanocore Rat
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
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
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-06-07 01:44:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer suricata 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
Checks whether UAC is enabled
Checks computer location settings
NanoCore
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
146.70.76.43:56281
Unpacked files
SH256 hash:
fe78017f2153de0c5ca645c4255899ab044502fe5c77d5c04ced635d9fe981d9
MD5 hash:
ab47b292d4d39311539a0b97e6661f4f
SHA1 hash:
54cd9efbebe4f41b23e6f24fffac0da8f72d921b
SH256 hash:
9e8b04de4bc45acbff4ce47280cd0246331391961eab8343652658509b117580
MD5 hash:
cb07a630a807d85a6b4485e4a2cff892
SHA1 hash:
2c85fd5ce855341e2d9050db6300b29e8cd028f0
SH256 hash:
923527e188f407ba2bba6d1570506c474519970bc29fbee47d16d01636e7a338
MD5 hash:
55251a95a7d595d3577e609a36b6992c
SHA1 hash:
45195a3e7038302845200e55c4f84fb91205b670
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: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 923527e188f407ba2bba6d1570506c474519970bc29fbee47d16d01636e7a338

(this sample)

  
Dropped by
nanocore
  
Delivery method
Distributed via e-mail attachment

Comments