MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4. 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 YARA 2 File information Comments
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SHA256 hash: d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4
SHA3-384 hash: e84c6341e6ad9ad0fd759a22237ba5e2e4c004c2edeb61fd28d2533dc58cba036712ba628c949377c32cf226d6a3182e
SHA1 hash: dfd9d5479816b67c213fa35f87280c192d1a20a1
MD5 hash: d2511f548930bc0a616afb4bf2f5eb59
humanhash: montana-skylark-ohio-april
File name:SecuriteInfo.com.Win32.CrypterX-gen.27794
Download: download sample
Signature NanoCore
Create hunting rule
File size:578'048 bytes
First seen:2022-09-07 20:30:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'739 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:g8l02b1zzUFFiRUUWgSXGjITqZfs+Bog:blfzzUFAKDlW8Tqf
TLSH T1DFC4F1AF17A8AA21C27E33F2236A56F5C3F1D5D78900D79F48DC81AC37767411A61CA2
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
448
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Win32.CrypterX-gen.27794
Verdict:
Malicious activity
Analysis date:
2022-09-07 20:33:17 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/17a5fdd0-0f5a-40c4-89e5-f1d2ac38d38f

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/308581/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.27794.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Creating a process from a recently created file
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a window
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6318ffdd1d4a849311e045c9/reports/2887ac02-5f90-44c5-bf79-3981ca9faba7/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/533f2727-ed8d-4f8d-8bd2-3239b05fd0b2
Result
Threat name:
Nanocore, DarkTortilla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1066754
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Creates multiple autostart registry keys
Detected Nanocore Rat
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Snort IDS alert for network traffic
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DarkTortilla Crypter
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 699286 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 07/09/2022 Architecture: WINDOWS Score: 100 52 brewsterchristophe.ddns.net 2->52 72 Snort IDS alert for network traffic 2->72 74 Multi AV Scanner detection for domain / URL 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 10 other signatures 2->78 9 SecuriteInfo.com.Win32.CrypterX-gen.27794.exe 15 3 2->9         started        14 Bin.exe 14 3 2->14         started        signatures3 process4 dnsIp5 60 www.google.com 142.250.185.164, 443, 49732 GOOGLEUS United States 9->60 50 SecuriteInfo.com.W...X-gen.27794.exe.log, ASCII 9->50 dropped 88 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->88 16 cmd.exe 3 9->16         started        20 cmd.exe 1 9->20         started        62 172.217.168.68, 443, 49748, 49752 GOOGLEUS United States 14->62 90 Multi AV Scanner detection for dropped file 14->90 92 Machine Learning detection for dropped file 14->92 94 Writes to foreign memory regions 14->94 96 Injects a PE file into a foreign processes 14->96 22 RegAsm.exe 14->22         started        file6 signatures7 process8 file9 42 C:\Users\user\Desktop\Bin.exe, PE32 16->42 dropped 44 C:\Users\user\...\Bin.exe:Zone.Identifier, ASCII 16->44 dropped 64 Uses ping.exe to sleep 16->64 24 Bin.exe 2 16->24         started        28 PING.EXE 1 16->28         started        30 conhost.exe 16->30         started        32 PING.EXE 1 16->32         started        66 Uses ping.exe to check the status of other devices and networks 20->66 34 reg.exe 1 1 20->34         started        36 PING.EXE 1 20->36         started        38 conhost.exe 20->38         started        46 C:\Users\user\AppData\Roaming\...\run.dat, data 22->46 dropped 48 C:\Users\user\AppData\Roaming\...\dhcpmon.exe, PE32 22->48 dropped 68 Creates multiple autostart registry keys 22->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->70 signatures10 process11 dnsIp12 54 www.google.com 24->54 80 Writes to foreign memory regions 24->80 82 Hides that the sample has been downloaded from the Internet (zone.identifier) 24->82 84 Injects a PE file into a foreign processes 24->84 40 RegAsm.exe 24->40         started        56 192.168.2.1 unknown unknown 28->56 86 Creates multiple autostart registry keys 34->86 58 127.0.0.1 unknown unknown 36->58 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
Create hunting rule
Status:
Malicious
First seen:
2022-09-07 17:54:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3bt7do7uupmorxu45hdv27iwscu2wfn2sgpnbua7npdgna7aotca._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:nanocore evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220908-fwslmsbaal/
Behaviour
Creates scheduled task(s)
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks whether UAC is enabled
Executes dropped EXE
NanoCore
Malware Config
C2 Extraction:
brewsterchristophe.ddns.net:5899
194,147,5,75:5899
Unpacked files
SH256 hash:
d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4
MD5 hash:
d2511f548930bc0a616afb4bf2f5eb59
SHA1 hash:
dfd9d5479816b67c213fa35f87280c192d1a20a1
Link:
https://www.unpac.me/results/2a166cd7-8e8d-485b-acc1-4466d1490fce/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d867f1bbf4a3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/d867f1bbf4a3d8e8de9ce9c75d7d1690a9ab15ba919ed0d01f6bc66683e074c4

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/308581/

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