MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4
SHA3-384 hash: c0cc3993aff80eb03f666c697bf1e3c537870eb76f682520c7fb385063029e817d64026e80e7e34be41e5364783a730c
SHA1 hash: d7e30ce9eec92394e9d971ca939a4c7f000139e6
MD5 hash: 98d19a78cd19a6bddaf3721a167f4478
humanhash: asparagus-eleven-twelve-wisconsin
File name:CN-Invoice-XXXXX9808-19011143287989 (2).exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:1'437'184 bytes
First seen:2021-02-02 07:45:41 UTC
Last seen:2021-02-02 09:31:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ulFgi/vn/Bv7jnnRsaQZGCIV/KaITS1t0uNSICWtrP725EDCB48AC4VxDu:0J/v/Bv7jnnRYGlL2RQSIz4B48v6x
Threatray 256 similar samples on MalwareBazaar
TLSH 3165C950A3F88A45C9B9F33716AB6F2E4387FCDB27208541671A8772109F1D17B5EB88
Reporter abuse_ch
Tags:exe FedEx NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: 64.188.20.113.static.quadranet.com
Sending IP: 64.188.20.113
From: FedEx Express - Do Not Reply <Carrie.Park@expeditors.com>
Reply-To: nopeply-fedeoxngr@iname.com
Subject: [CN]: FedEx Invoice 账单 (CustomerAccount -XXXXX9808-19011143287989)
Attachment: CN-Invoice-XXXXX9808-19011143287989.iso (contains "CN-Invoice-XXXXX9808-19011143287989 (2).exe")

NanoCore RAT C2:
annapro.linkpc.net:2212

Intelligence

File Origin
# of uploads :
2
# of downloads :
127
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CN-Invoice-XXXXX9808-19011143287989 (2).exe
Verdict:
Malicious activity
Analysis date:
2021-02-02 07:49:02 UTC
Tags:
rat nanocore
Link:
https://app.any.run/tasks/e4610744-fdfc-47a4-9517-f69651d64d95

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/115067/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Running batch commands
Launching a process
Creating a file in the %temp% directory
Creating a file in the %AppData% directory
Creating a process from a recently created file
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
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/596222
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 347149 Sample: CN-Invoice-XXXXX9808-190111... Startdate: 02/02/2021 Architecture: WINDOWS Score: 100 46 185.157.160.233:2212 unknown unknown 2->46 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 7 other signatures 2->58 9 CN-Invoice-XXXXX9808-19011143287989 (2).exe 5 2->9         started        signatures3 process4 file5 36 C:\Users\user\...\bbnkhjfhfytuyfgfgcg.exe, PE32 9->36 dropped 38 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 9->38 dropped 40 bbnkhjfhfytuyfgfgcg.exe:Zone.Identifier, ASCII 9->40 dropped 42 CN-Invoice-XXXXX98...3287989 (2).exe.log, ASCII 9->42 dropped 64 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->64 13 bbnkhjfhfytuyfgfgcg.exe 5 9->13         started        17 cmd.exe 1 9->17         started        signatures6 process7 file8 44 C:\Users\user\...\ccvdfhhdcncnffdfgsgh.exe, PE32 13->44 dropped 66 Multi AV Scanner detection for dropped file 13->66 68 Writes to foreign memory regions 13->68 70 Allocates memory in foreign processes 13->70 72 2 other signatures 13->72 19 AddInProcess32.exe 6 13->19         started        24 ccvdfhhdcncnffdfgsgh.exe 2 13->24         started        26 ccvdfhhdcncnffdfgsgh.exe 1 13->26         started        28 conhost.exe 17->28         started        30 reg.exe 1 1 17->30         started        signatures9 process10 dnsIp11 48 185.157.160.233, 2212 OBE-EUROPEObenetworkEuropeSE Sweden 19->48 50 annapro.linkpc.net 105.112.109.252, 2212 VNL1-ASNG Nigeria 19->50 34 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 19->34 dropped 60 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->60 62 Multi AV Scanner detection for dropped file 24->62 32 ccvdfhhdcncnffdfgsgh.exe 24->32         started        file12 signatures13 process14
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-02-02 06:44:59 UTC
AV detection:
9 of 45 (20.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6f5zihugu65jbukfeki5qnl2rubfdhm22edc2tckp67tcgrethsa._file
Verdict:
suspicious
Similar samples:
101bfb7953ee39065a917a37670cc43836cf5c0a938082f4038515efebddcc04
NanoCore
2f01970525500ba9024c7d2578ed317c6c8d51a482c15cf50506c862e9d18c35
NanoCore
48a21c645f143a4fcfc517da6517f08c8063e46cfd5ee4278a5ad2600818ba8a
NanoCore
55ca4147c94a10c9fc3fe95d3e922546ee796f63ca3b9aad005998f1e1e2b912
NanoCore
8bb5e094fe793a06740ea5ab43ced903c8be03b623bf604fd10b704941d503b2
NanoCore
8fde2bd043c16448fe13d733e35e388de4a95938f187682f60725d27da3653c8
NanoCore
c01c2c89891c058b6f5e0658aaceb12bf4cbf6d0c7769bc6ac035b44d1a18f97
NanoCore
c549da8e701e70f541c7a4a651406aec910cda2587392f33d1ee0d5717439d99
NanoCore
d21f7c6f8a4fbbb00973d1ed40f4c9ca33920aaca079b70ff298db4e74b56134
NanoCore
d43838212ddf94f2e613eeeaf305893081963706657e5588273a798e5ca5690d
NanoCore
+ 246 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence ransomware spyware stealer trojan
Link:
https://tria.ge/reports/210202-te21lyxlbj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Loads dropped DLL
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
185.157.160.233:2212
annapro.linkpc.net:2212
Unpacked files
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
Link:
https://www.unpac.me/results/6135aaa1-aff6-4d67-8b5e-558af6973469/
SH256 hash:
49dc26861fffee2f6440e56a10b7086ea305d2f16bb9e27ba3e08b9893557f86
MD5 hash:
e732cd6decfed3503b4020899d5a56f9
SHA1 hash:
024c1bf147c698e92aae340bbee323601d02a787
Link:
https://www.unpac.me/results/6135aaa1-aff6-4d67-8b5e-558af6973469/
SH256 hash:
f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4
MD5 hash:
98d19a78cd19a6bddaf3721a167f4478
SHA1 hash:
d7e30ce9eec92394e9d971ca939a4c7f000139e6
Link:
https://www.unpac.me/results/6135aaa1-aff6-4d67-8b5e-558af6973469/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4

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:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:nanocore_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:win_nanocore_w0
Create hunting rule
Author: Kevin Breen <kevin@techanarchy.net>

File information

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

Malspam

NanoCore

iso 345cb39d37f4d2ddd98765b82e5901be5cc2b8eeda58f1b0282d5bf3262a464e

NanoCore

Executable exe f17b941e86a7ba90d1452291d8357a8d02519d9ad1062d4c4a7fbf311a2499e4

(this sample)

  
Dropped by
MD5 5416a2e8584b54c62c17ac8a93044613
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115067/
  
Dropped by
SHA256 345cb39d37f4d2ddd98765b82e5901be5cc2b8eeda58f1b0282d5bf3262a464e

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