MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac7b7520306b78fbf374f615b281f7a1aea04506c47d44a5f318c85ad6957a88. 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 1 YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac7b7520306b78fbf374f615b281f7a1aea04506c47d44a5f318c85ad6957a88
SHA3-384 hash: 84a168b2428c002486b345e1c1f5e8549405777fd3c4703aaba1e8ce131bacd0498b850e540271adec8f8b7684b24432
SHA1 hash: 113db05e30e39a82975d1108e946a3b54b75ea53
MD5 hash: 27760cf0a3f50d3cd3d7d9f5d8d2368e
humanhash: harry-alabama-beryllium-six
File name:Img 06 30 2021 4677.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:514'560 bytes
First seen:2021-06-30 07:06:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:qFSEFVzMF14dTUqbTMUV2Sc49l5r+HGZrYOT/cRc2NdxwKO2mCMFx7:kaE/geBOQc4/uxPO2mCM
Threatray 2'106 similar samples on MalwareBazaar
TLSH 8CB412A0AAEC2DD6F5E112F388F3A4213172C559E163DC6D6CEA649462273C33576E0F
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
91.193.75.199:11110

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
91.193.75.199:11110 https://threatfox.abuse.ch/ioc/156098/

Intelligence

File Origin
# of uploads :
1
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Img 06 30 2021 4677.exe
Verdict:
Malicious activity
Analysis date:
2021-06-30 07:08:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e5aa34b1-dc04-4291-aa08-c7f13e9e9a87

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/168906/
Detection(s):
Win.Trojan.Ag-18
Create hunting rule

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.
Malware family:
NanoCoreRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8c8514f3-8df8-4393-a138-cff69edbdbc2
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/809805
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Detected Nanocore Rat
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Sigma detected: NanoCore
Sigma detected: Suspicious Process Start Without DLL
Sigma detected: WScript or CScript Dropper
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
Wscript starts Powershell (via cmd or directly)
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442216 Sample: Img 06 30 2021 4677.exe Startdate: 30/06/2021 Architecture: WINDOWS Score: 100 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Sigma detected: NanoCore 2->65 67 9 other signatures 2->67 8 Img 06 30 2021 4677.exe 4 8 2->8         started        12 RegAsm.exe 2->12         started        14 dhcpmon.exe 2->14         started        16 dhcpmon.exe 2->16         started        process3 file4 51 C:\Users\user\AppData\Roaming\...\image.exe, PE32 8->51 dropped 53 C:\Users\user\AppData\Local\Temp\RegAsm.exe, PE32 8->53 dropped 55 C:\Users\user\...\image.exe:Zone.Identifier, ASCII 8->55 dropped 57 2 other malicious files 8->57 dropped 75 Creates an undocumented autostart registry key 8->75 77 Writes to foreign memory regions 8->77 79 Injects a PE file into a foreign processes 8->79 18 RegAsm.exe 1 14 8->18         started        23 wscript.exe 1 8->23         started        25 RegAsm.exe 8->25         started        27 conhost.exe 12->27         started        29 conhost.exe 14->29         started        31 conhost.exe 16->31         started        signatures5 process6 dnsIp7 59 91.193.75.199, 11110, 49759, 49763 DAVID_CRAIGGG Serbia 18->59 45 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->45 dropped 47 C:\Users\user\AppData\Local\...\tmp678E.tmp, XML 18->47 dropped 49 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->49 dropped 69 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->69 33 schtasks.exe 18->33         started        35 schtasks.exe 18->35         started        71 Wscript starts Powershell (via cmd or directly) 23->71 37 powershell.exe 26 23->37         started        73 Uses schtasks.exe or at.exe to add and modify task schedules 25->73 file8 signatures9 process10 process11 39 conhost.exe 33->39         started        41 conhost.exe 35->41         started        43 conhost.exe 37->43         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ac7b7520306b78fbf374f615b281f7a1aea04506c47d44a5f318c85ad6957a88/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vr5xkibqnn4px43u6yk3fapxugxkarigyr6ujjptddefvvuvpkea._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
2b8a102443d6ed4c84471a54f058f24f5f55485bba73ebd785fdce294e337110
NanoCore
305bf6557bcc3df14cf33993d14e03fa84a6bd7611a990402fae4522ff098454
NanoCore
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
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437c9421ae36bc19198438f86b86a39de0d207449abef097eb9656743823c256
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4d01d1b24f4f7487669486becc7ff8b43a126f56ffb3d8fcce8c66b200412475
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4d394ed696ee7fb3d53a7b064c53f2157b28d9f192de912fe311dd284845e4c9
NanoCore
5a8b4dc95322eed89a2c77350395f8c1f79394369bebec84703ae285092a37f5
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9f96527c9f839559485e89c5c5ff8f95708035fd55c9fac0c2edf3764224d860
NanoCore
9fc2ec9a478ddf812c9687c805f340989dc0af33b48100ec6621e422035ce579
NanoCore
a276b0d2aaf8a132ffbe9ae16763975bcf38fc1e5a6419890712fc3de02b793f
NanoCore
+ 2'096 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210630-6hdyh2v1an/
Behaviour
Creates scheduled task(s)
Modifies registry class
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
Loads dropped DLL
Executes dropped EXE
Modifies WinLogon for persistence
NanoCore
Malware Config
C2 Extraction:
91.193.75.199:11110
Unpacked files
SH256 hash:
c78499618b398a1e6fb6389f4a1e3dee078a80b72472befafecf701f9bb46779
MD5 hash:
934127a3cff135ee322bdb2cbb3c4dd7
SHA1 hash:
1f0751de1b68674b36a04bbef9b09266107d601e
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/91c94975-60a6-4fa8-ba08-bcb9cb617d45/
SH256 hash:
bfb9e782ba5d51db5bb929481cd72bdb361645908f4916c92accc498d2c991e1
MD5 hash:
6c6d4782e680302ba842fb86ad4feb2f
SHA1 hash:
a3a9b98b2c7bb9267f55c70dd8946d9889e052f9
Link:
https://www.unpac.me/results/91c94975-60a6-4fa8-ba08-bcb9cb617d45/
SH256 hash:
f624ddd9fbcd71e6815d52a7760cb773c31e91874ea20888f5ae09fd2c2d974c
MD5 hash:
60c7459f8d47bdb0ebb81389be2677be
SHA1 hash:
3099f4f6d27951e22ab14a7a25876659e97b66e4
Link:
https://www.unpac.me/results/91c94975-60a6-4fa8-ba08-bcb9cb617d45/
SH256 hash:
ac7b7520306b78fbf374f615b281f7a1aea04506c47d44a5f318c85ad6957a88
MD5 hash:
27760cf0a3f50d3cd3d7d9f5d8d2368e
SHA1 hash:
113db05e30e39a82975d1108e946a3b54b75ea53
Link:
https://www.unpac.me/results/91c94975-60a6-4fa8-ba08-bcb9cb617d45/
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/ac7b7520306b78fbf374f615b281f7a1aea04506c47d44a5f318c85ad6957a88

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Cape
Cape
https://www.capesandbox.com/analysis/168906/

Comments