MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764
SHA3-384 hash: fe5c16c9cb6e047578acda99f73a636bd0c43cbd86d0e7153c0993ed4ebdfc8709d3749a6f33b30c03802abad220fa6f
SHA1 hash: e4d7500f308796df955c786b11aa45009a0a5d94
MD5 hash: 9915a221063cac2e11fc851cfe481659
humanhash: speaker-lake-table-oscar
File name:SecuriteInfo.com.Trojan.PackedNET.1389.1648.1808
Download: download sample
Signature NanoCore
Create hunting rule
File size:954'112 bytes
First seen:2022-06-30 12:13:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:YXJGy8pHMvyw8/xYEnHo9xJvmapJUxj0cVSGSx:CJGy8SvepY4HIztpy6GSGSx
TLSH T1AD15014728EC8BD3D02D0AB81CA6F3ACA6667D214411DD55BDC1F28E4976B4219F3E3E
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)
File icon (PE):PE icon
dhash icon b4ecccccd4c4ccc8 (8 x AgentTesla, 6 x Formbook, 2 x RedLineStealer)
Reporter SecuriteInfoCom
Tags:exe NanoCore

Intelligence

File Origin
# of uploads :
1
# of downloads :
267
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/284605/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1389.1648.1808.UNOFFICIAL
Create hunting rule

Win.Packed.Pwsx-9954168-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending an HTTP GET request
DNS request
Launching a process
Creating a process with a hidden window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/62bd93cdaf5d83443c171474/reports/96bb5455-062f-4147-85f4-57b80c21acc7/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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0132ce75-e2bf-4470-9ae0-e4dacdb2c8b9
Result
Threat name:
Nanocore, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022605
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected Nanocore Rat
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: NanoCore
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 655101 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 30/06/2022 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 12 other signatures 2->55 7 SecuriteInfo.com.Trojan.PackedNET.1389.1648.exe 4 2->7         started        process3 file4 27 SecuriteInfo.com.T...T.1389.1648.exe.log, ASCII 7->27 dropped 57 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->57 59 Adds a directory exclusion to Windows Defender 7->59 11 SecuriteInfo.com.Trojan.PackedNET.1389.1648.exe 3 7->11         started        14 powershell.exe 23 7->14         started        signatures5 process6 file7 29 C:\Users\user\AppData\...\SLOTCORIGIN3333.exe, PE32 11->29 dropped 31 C:\Users\user\AppData\Local\...\SLOTCNANO.exe, PE32 11->31 dropped 16 SLOTCORIGIN3333.exe 11->16         started        20 SLOTCNANO.exe 8 11->20         started        23 conhost.exe 14->23         started        process8 dnsIp9 33 s83.gocheapweb.com 51.195.105.6, 49761, 49763, 587 OVHFR France 16->33 37 Antivirus detection for dropped file 16->37 39 Multi AV Scanner detection for dropped file 16->39 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->41 47 6 other signatures 16->47 35 76.8.53.140, 49744, 49745, 49758 QUONIXNETUS United States 20->35 25 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 20->25 dropped 43 Machine Learning detection for dropped file 20->43 45 Hides that the sample has been downloaded from the Internet (zone.identifier) 20->45 file10 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-06-20 07:00:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g64alow7pfjrjbhlzhin5qwf3k3tpb2mwsgbjp7qgwl3h4vio5sa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
nanocorerat
Create hunting rule
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:nanocore collection evasion keylogger spyware stealer suricata trojan
Link:
https://tria.ge/reports/220630-pea5psahhr/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks whether UAC is enabled
Maps connected drives based on registry
Checks computer location settings
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Checks BIOS information in registry
Executes dropped EXE
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
AgentTesla
NanoCore
suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE Possible NanoCore C2 60B
Malware Config
C2 Extraction:
76.8.53.140:62520
Unpacked files
SH256 hash:
67c554f28a695e444f4178fba9872ba1c54bd709c0ebe0ed8cb0b2f7842f04e5
MD5 hash:
709228750c8c2a5313e3e9b9c0479295
SHA1 hash:
c05a3e1616525f755b3a8ff17a3ed98e2c9df6ff
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
SH256 hash:
c71f39e0a931bbd84d711f90fa6b9a01a5e530449abdd2921f556c19d96cfcd9
MD5 hash:
a6045a3bdf2622fd22e3617d07a47f26
SHA1 hash:
17a5c0a7389cef044c5d3154c79cf58f7e89b42b
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
SH256 hash:
6de8bc7d4844efdb55328126b632a374bee9aaf3073cf9ca5fe5fdf303106f8e
MD5 hash:
7ce2d10bd0f02667bc0e1343d9ffc1c1
SHA1 hash:
c3a5b4e5721085022eb7bf0008b7e449f9369fcf
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
SH256 hash:
c62c9733daffac14e675abbbdadd505ba79756b9f5a412fc9cb16d6a02554398
MD5 hash:
c51d25525ce22e4ed0edf1cfa6b1e655
SHA1 hash:
5356e65ee9ecfa29cfbbd03834c29e91f641a584
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
SH256 hash:
d432479be136514bc16effe131a0ef2a75404f463ca3cc72aa37bab14d4827da
MD5 hash:
b253debfcc2f45434ee4a839a1883889
SHA1 hash:
8e97622253a3bb008b0b66ea0a24e208e20c73d4
Detections:
win_nanocore_w0
Create hunting rule
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
Parent samples :
48edd19f150f6864d5179240e15c60af024d1e18ed34736abcdd59b1c636412b
37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764
SH256 hash:
4bd4b4ad841b324a5d9846cf27c16ec19d200f7fc7b56d8511e2faf6711c2ce1
MD5 hash:
9d396d2b8160a38cf3bc55660b1cf8fc
SHA1 hash:
691932e7087391cdab9aaf619809e7943dfb1c21
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
SH256 hash:
37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764
MD5 hash:
9915a221063cac2e11fc851cfe481659
SHA1 hash:
e4d7500f308796df955c786b11aa45009a0a5d94
Link:
https://www.unpac.me/results/9f2eedc1-963f-4369-b2be-822b3628bafe/
Malware family:
NanoCore
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37b805badf79/report/overview.html
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/37b805badf79531484ebc9d0dec2c5dab737874cb48c14bff03597b3f2a87764

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: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

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/284605/

Comments