MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1bc8d97f5be4fd72080fbec129ecb6ab776fd894993a7ffb7ab84ceaf26e2099. 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 1 YARA 2 File information Comments

SHA256 hash: 1bc8d97f5be4fd72080fbec129ecb6ab776fd894993a7ffb7ab84ceaf26e2099
SHA3-384 hash: 02b8a4277109bc3be6d868888ae045f72a9da7bdf5ff082dc3a672667559a38d5187cba2bc4524525e5879ae8ebd63de
SHA1 hash: 632f43f06cd2c9783cfa4f5b21b6766f05d04c6f
MD5 hash: 9063163465856f7244f99e636bfd2b74
humanhash: finch-nuts-kitten-failed
File name:Rpt47488747 & Invoice shipping doc.exe
Download: download sample
Signature NanoCore
File size:765'952 bytes
First seen:2022-04-02 13:40:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:U+0jO/P3F7bvTBtPKp8R8IR5vnBb7X1zwBut2AkNYI1o6LR8DzveM8r9w/6FhFMo:X0jO17JtPKp8R8w5vBPlzwBsCo6LuPW/
Threatray 3'901 similar samples on MalwareBazaar
TLSH T1B9F4E0983260B6DFC867C8B28EA81C64AA117D7B531BD103A45335AC9A3DAD7CF151F3
File icon (PE):PE icon
dhash icon 2f3e0e0c03130a07 (28 x SnakeKeylogger, 2 x Loki, 2 x NanoCore)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
45.137.22.179:3218

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.137.22.179:3218 https://threatfox.abuse.ch/ioc/485906/

Intelligence


File Origin
# of uploads :
1
# of downloads :
519
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 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
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NanoCore
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 601891 Sample: Rpt47488747 & Invoice shipp... Startdate: 02/04/2022 Architecture: WINDOWS Score: 100 55 mbahannanocore.ddns.net 2->55 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 21 other signatures 2->67 9 Rpt47488747 & Invoice shipping doc.exe 4 2->9         started        13 dhcpmon.exe 4 2->13         started        16 dhcpmon.exe 2->16         started        signatures3 process4 dnsIp5 53 Rpt47488747 & Invo...hipping doc.exe.log, ASCII 9->53 dropped 71 Adds a directory exclusion to Windows Defender 9->71 18 Rpt47488747 & Invoice shipping doc.exe 1 15 9->18         started        23 powershell.exe 9 9->23         started        59 192.168.2.1 unknown unknown 13->59 73 Injects a PE file into a foreign processes 13->73 25 powershell.exe 13->25         started        27 dhcpmon.exe 13->27         started        29 dhcpmon.exe 16->29         started        31 dhcpmon.exe 16->31         started        file6 signatures7 process8 dnsIp9 57 mbahannanocore.ddns.net 45.137.22.179, 3218, 49757, 49758 ROOTLAYERNETNL Netherlands 18->57 45 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->45 dropped 47 C:\Users\user\AppData\Roaming\...\run.dat, data 18->47 dropped 49 C:\Users\user\AppData\Local\...\tmp48BF.tmp, XML 18->49 dropped 51 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->51 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->69 33 schtasks.exe 1 18->33         started        35 schtasks.exe 1 18->35         started        37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        file10 signatures11 process12 process13 41 conhost.exe 33->41         started        43 conhost.exe 35->43         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-02 13:41:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Result
Malware family:
nanocore
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence 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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
NanoCore
Malware Config
C2 Extraction:
mbahannanocore.ddns.net:3218
Unpacked files
SH256 hash:
eb78903f5c7530f0f4fed66eeb07bac56b57509891361e3b25d6518c3a5db286
MD5 hash:
830025d15997d32c03529980ae4e0773
SHA1 hash:
41de5901cec16aca279e22fa4fe91e6f3ce0accb
SH256 hash:
d8bc10418febe11cda6cc8371cf85d766e85c3bf3a4396632bceeca72b6d87a2
MD5 hash:
a95ed1e31bb16700af8d7beeb7d14f3f
SHA1 hash:
18335f55bc47fad71d06c895daf42a03f948432f
Detections:
win_nanocore_w0
SH256 hash:
1febc78055cdef51ca8960fc640794b8962f960592ca1663cec930f3c7169ee0
MD5 hash:
1095015d5eb4a15ece49a52b5c553160
SHA1 hash:
139efa5c2672cbf417b732f58956f8bc2fd38bbe
SH256 hash:
71764eb60a83a17343af4a26bf3ec546c5ee08454722233fd5cf59693327b1a4
MD5 hash:
bfcf754fb9acba752f79f44817b7be23
SHA1 hash:
01af19456b6f97790973d0d67a97ecc362ab7aed
SH256 hash:
1bc8d97f5be4fd72080fbec129ecb6ab776fd894993a7ffb7ab84ceaf26e2099
MD5 hash:
9063163465856f7244f99e636bfd2b74
SHA1 hash:
632f43f06cd2c9783cfa4f5b21b6766f05d04c6f
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.

Comments