MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e527276384d145defb319a3c2adeb52e7825e5a7f8f7459ebc368c31a4018f03. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e527276384d145defb319a3c2adeb52e7825e5a7f8f7459ebc368c31a4018f03
SHA3-384 hash: c2846e54a0c2b63ad851a568713acb12c1a5f6a44238360fcc48b46449a8689dc4093cf5ca030d484f64e49eeec17c24
SHA1 hash: 80935c3e16b27fa4155cf3350e5b474780ce2157
MD5 hash: ab80f58dd166cd4f196cf3b62ee67a79
humanhash: fix-alaska-snake-california
File name:ab80f58dd166cd4f196cf3b62ee67a79.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:932'352 bytes
First seen:2022-09-10 06:10:17 UTC
Last seen:2022-09-10 06:47:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:DtwTf4WsfpMOXFmr9MdSo4lhwC1+0PfebD4oJ5Smp/TeGm2qtpRG6YOle:DuTf4WqMOX0r9MUwvafdIfb6
Threatray 5'041 similar samples on MalwareBazaar
TLSH T15A15AE01DBED873BE19B2774ACB70E01677AFA92A655A70F1624F4BC0C62351DD8231B
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter abuse_ch
Tags:exe NanoCore RAT


Avatar
abuse_ch
NanoCore C2:
91.193.75.252:26000

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
91.193.75.252:26000 https://threatfox.abuse.ch/ioc/848926/

Intelligence

File Origin
# of uploads :
2
# of downloads :
414
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab80f58dd166cd4f196cf3b62ee67a79.exe
Verdict:
Suspicious activity
Analysis date:
2022-09-10 06:12:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0a682cb9-91c3-4026-a386-b80217e0f848

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/309083/
Detection(s):
SecuriteInfo.com.Variant.Tedy.120597.26301.28793.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Adding an access-denied ACE
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the process to interact with network services
Unauthorized injection to a recently created process
Changing a file
Creating a file
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Adding exclusions to Windows Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe packed
Link:
https://www.filescan.io/uploads/631c2af3d94ccae4108a0c7b/reports/d9829bc5-b814-4c23-8629-89ad20e3f5ee/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/2fa33364-e699-49df-bde8-2553b72ad534
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1068123
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Adds a new user with administrator rights
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Contains functionality to hide user accounts
Detected Nanocore Rat
Disables UAC (registry)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic
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
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 700649 Sample: xAjGZ8VrZc.exe Startdate: 10/09/2022 Architecture: WINDOWS Score: 100 73 Snort IDS alert for network traffic 2->73 75 Multi AV Scanner detection for domain / URL 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 13 other signatures 2->79 8 xAjGZ8VrZc.exe 4 3 2->8         started        12 dhcpmon.exe 2->12         started        14 xAjGZ8VrZc.exe 2->14         started        16 2 other processes 2->16 process3 file4 69 C:\Users\user\AppData\...\xAjGZ8VrZc.exe.log, ASCII 8->69 dropped 85 Uses schtasks.exe or at.exe to add and modify task schedules 8->85 87 Adds a directory exclusion to Windows Defender 8->87 89 Disables UAC (registry) 8->89 91 Adds a new user with administrator rights 8->91 18 xAjGZ8VrZc.exe 8->18         started        23 net.exe 1 8->23         started        25 net.exe 1 8->25         started        31 7 other processes 8->31 93 Injects a PE file into a foreign processes 12->93 27 powershell.exe 12->27         started        33 3 other processes 12->33 29 powershell.exe 14->29         started        35 4 other processes 14->35 37 8 other processes 16->37 signatures5 process6 dnsIp7 71 91.193.75.252, 26000, 49714, 49717 DAVID_CRAIGGG Serbia 18->71 61 C:\Program Files (x86)\...\dhcpmon.exe, PE32 18->61 dropped 63 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 18->63 dropped 65 C:\Users\user\AppData\Local\...\tmp43C5.tmp, XML 18->65 dropped 67 C:\...\dhcpmon.exe:Zone.Identifier, ASCII 18->67 dropped 81 Hides that the sample has been downloaded from the Internet (zone.identifier) 18->81 43 2 other processes 18->43 45 2 other processes 23->45 47 2 other processes 25->47 83 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 27->83 39 conhost.exe 27->39         started        41 conhost.exe 29->41         started        49 9 other processes 31->49 51 2 other processes 33->51 53 2 other processes 35->53 55 6 other processes 37->55 file8 signatures9 process10 process11 57 conhost.exe 43->57         started        59 conhost.exe 43->59         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e527276384d145defb319a3c2adeb52e7825e5a7f8f7459ebc368c31a4018f03/
Threat name:
ByteCode-MSIL.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2022-09-04 03:41:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
16 of 26 (61.54%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4utsoy4e2fc556zrti6cvxvvfz4clznh7d3ulhv4g2gddjabr4bq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Similar samples:
42160df191b53ba66deac9a1dcb81f52f1712831a07d359d7c4bf9b5574c4707
NanoCore
66b83ea08aae693557315e3e62fcdc14e3ab57c51d43a10a4bacf1d5e05c6988
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75d8f694cc59aaf61da837b61782e3c1004ee310918f3fc3ee34ee1b7b0c0a9d
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771088b4c7a646b7f6f7d2d73948923f15dce833d33891889585996b5e2e3290
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a3fbcb163ca47c352ef996b6b42fec6aa2e88073bfb279d8510c3f1a4c472b04
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e1ee64f883461b2467c9ba0efb86934add2505f1e230126a12d835a796d2f869
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ede54ddd1ad0cc12aeb64653aee9b3d056263312bf2221ee7f640fd3fcbf11cb
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efc5e38081320031708585d42e346cd6080b7b0bf8d16f5872f2fbe457c3c0ca
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f8b172fef8728a9ec1ad7b73e5f59c6750d53244dbce42a769c910b673669236
NanoCore
+ 5'031 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/220910-gxledsddcm/
Behaviour
Creates scheduled task(s)
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Program crash
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Checks BIOS information in registry
Checks computer location settings
Windows security modification
Grants admin privileges
NanoCore
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
91.193.75.252:26000
Unpacked files
SH256 hash:
e527276384d145defb319a3c2adeb52e7825e5a7f8f7459ebc368c31a4018f03
MD5 hash:
ab80f58dd166cd4f196cf3b62ee67a79
SHA1 hash:
80935c3e16b27fa4155cf3350e5b474780ce2157
Link:
https://www.unpac.me/results/1d1bb460-2005-4285-be7d-47a13f6773dc/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e527276384d1/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/e527276384d145defb319a3c2adeb52e7825e5a7f8f7459ebc368c31a4018f03

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:malware_Nanocore_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:MALWARE_Win_NanoCore
Create hunting rule
Author:ditekSHen
Description:Detects NanoCore
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_Feb18_1_RID2DF1
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:Nanocore_RAT_Gen_2_RID2D96
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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
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/309083/

Comments