MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8ecea24c43126ff5e7650fb25482224fef2dd2eb64d802e47a1f089669f0e137. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8ecea24c43126ff5e7650fb25482224fef2dd2eb64d802e47a1f089669f0e137
SHA3-384 hash: 7ff501a824f640fe27a96c2b179db05a3ecbc50526e2372171c5d469e0f7c3d5176694d373e9e816b2f3343df58b10a5
SHA1 hash: bb20eb7ca86b154134570119f8b4fd00731fbcda
MD5 hash: d2e494063622909f3d36fae8cdf1e6da
humanhash: ink-mars-october-purple
File name:COPYOFSWIFTMESSAGE1035LC268892021pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:30'208 bytes
First seen:2021-04-28 09:21:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:XxJMu7QNDwFKDxmatknjA7eCRaZryM3M:XBQNDpDx1GjA1RErzM
Threatray 224 similar samples on MalwareBazaar
TLSH 8AD28DC3F68858A5C2AF437FB6F6454123B821A34832F64EAC8A735E553474F1DA366C
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
31.210.20.40:8010

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
31.210.20.40:8010 https://threatfox.abuse.ch/ioc/19642/

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
COPYOFSWIFTMESSAGE1035LC268892021pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-04-28 09:24:52 UTC
Tags:
trojan dtloader loader rat nanocore
Link:
https://app.any.run/tasks/2eeaf678-51ea-401a-8afd-fc36b7df2f51

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/144903/
Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Sending a custom TCP request
Creating a file
Moving a recently created file
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Creating a file in the Windows subdirectories
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Setting a single autorun event
Blocking the User Account Control
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
Enabling autorun by creating a file
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8933ce05-b5d9-4075-8b0f-86af85b18ebe
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/700312
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Creates an autostart registry key pointing to binary in C:\Windows
Detected Nanocore Rat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the startup folder
Drops PE files with benign system names
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Protects its processes via BreakOnTermination flag
Sigma detected: NanoCore
Sigma detected: Powershell adding suspicious path to exclusion list
Sigma detected: Scheduled temp file as task from temp location
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 399078 Sample: COPYOFSWIFTMESSAGE1035LC268... Startdate: 28/04/2021 Architecture: WINDOWS Score: 100 64 ldvamlwhdpetnyn.ml 2->64 66 prda.aadg.msidentity.com 2->66 80 Multi AV Scanner detection for dropped file 2->80 82 Sigma detected: Powershell adding suspicious path to exclusion list 2->82 84 Sigma detected: Scheduled temp file as task from temp location 2->84 86 6 other signatures 2->86 9 COPYOFSWIFTMESSAGE1035LC268892021pdf.exe 24 19 2->9         started        14 svchost.exe 2->14         started        16 svchost.exe 2->16         started        18 9 other processes 2->18 signatures3 process4 dnsIp5 74 ldvamlwhdpetnyn.ml 172.67.208.174, 49705, 49722, 49724 CLOUDFLARENETUS United States 9->74 56 C:\Windows\Resources\Themes\...\svchost.exe, PE32 9->56 dropped 58 798afa448fW93car4c...70SaN0066cLha02.exe, PE32 9->58 dropped 60 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 9->60 dropped 62 3 other files (2 malicious) 9->62 dropped 94 Drops PE files to the startup folder 9->94 96 Creates an autostart registry key pointing to binary in C:\Windows 9->96 98 Uses schtasks.exe or at.exe to add and modify task schedules 9->98 108 3 other signatures 9->108 20 COPYOFSWIFTMESSAGE1035LC268892021pdf.exe 9->20         started        25 powershell.exe 8 9->25         started        27 powershell.exe 9->27         started        29 8 other processes 9->29 100 System process connects to network (likely due to code injection or exploit) 14->100 102 Multi AV Scanner detection for dropped file 14->102 104 Machine Learning detection for dropped file 14->104 76 104.21.85.176, 49725, 49726, 80 CLOUDFLARENETUS United States 16->76 78 127.0.0.1 unknown unknown 18->78 106 Changes security center settings (notifications, updates, antivirus, firewall) 18->106 file6 signatures7 process8 dnsIp9 68 31.210.20.40, 49727, 49731, 49737 PLUSSERVER-ASN1DE Netherlands 20->68 48 C:\Program Files (x86)\...\dhcpmon.exe, PE32 20->48 dropped 50 C:\Users\user\AppData\Roaming\...\run.dat, data 20->50 dropped 52 C:\Users\user\AppData\Local\...\tmp6D4E.tmp, XML 20->52 dropped 54 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 20->54 dropped 88 Protects its processes via BreakOnTermination flag 20->88 90 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->90 31 schtasks.exe 20->31         started        92 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 25->92 33 conhost.exe 25->33         started        35 conhost.exe 27->35         started        70 ldvamlwhdpetnyn.ml 29->70 37 AdvancedRun.exe 29->37         started        40 conhost.exe 29->40         started        42 conhost.exe 29->42         started        44 4 other processes 29->44 file10 signatures11 process12 dnsIp13 46 conhost.exe 31->46         started        72 192.168.2.1 unknown unknown 37->72 process14
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8ecea24c43126ff5e7650fb25482224fef2dd2eb64d802e47a1f089669f0e137/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-28 09:22:10 UTC
AV detection:
12 of 47 (25.53%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r3hketcdcjx7lz3fb6zfjarcj7xs3uxlmtmafzd2d4ejm2pq4e3q._file
Verdict:
malicious
Similar samples:
0db50b639d859d3ddf9aa74f96d12f7ecb189a0b3006a7ed1cfd73edbc34d220
NanoCore
2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4
NanoCore
3f0fa5c8ebb2640afc948bfd5c8bb0ba644222b3bc15c095085d718843d59915
NanoCore
4f450fcf02d7006fd4fbea8c2cad999397672d44864f1e8c504633ce53c3d53d
NanoCore
78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
NanoCore
9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
NanoCore
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
NanoCore
c7ce97bf28191b9f81871421f7f6fea0c86fca516d3e8706e16c0f07e9e7ed5b
NanoCore
ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
NanoCore
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
NanoCore
+ 214 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger spyware stealer trojan
Link:
https://tria.ge/reports/210428-l1r8wmsw46/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Drops startup file
Loads dropped DLL
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
NanoCore
Turns off Windows Defender SpyNet reporting
Windows security bypass
Unpacked files
SH256 hash:
8ecea24c43126ff5e7650fb25482224fef2dd2eb64d802e47a1f089669f0e137
MD5 hash:
d2e494063622909f3d36fae8cdf1e6da
SHA1 hash:
bb20eb7ca86b154134570119f8b4fd00731fbcda
Link:
https://www.unpac.me/results/7bab4728-6997-4457-96f2-db27f5df2672/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/8ecea24c43126ff5e7650fb25482224fef2dd2eb64d802e47a1f089669f0e137

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: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/144903/

Comments