MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6ff23b620fbf174a5796eb9e252d3f94672b2e8610435f0f5fd8be2f3a20990c. 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


njrat


Vendor detections: 6


Intelligence 6 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6ff23b620fbf174a5796eb9e252d3f94672b2e8610435f0f5fd8be2f3a20990c
SHA3-384 hash: c7acd22176c436e03b1372f4a10389c4b66c77de5d41a60bcab2a4ac99784668451d39f4e182fefbae2b2408fa4334ee
SHA1 hash: 9f1e3bc76be5c63aeb92a05bf560f3f451554673
MD5 hash: 4c0376160176344dcd99e03df5883286
humanhash: cold-blossom-uniform-network
File name:mio.exe
Download: download sample
Signature njrat
Create hunting rule
File size:361'984 bytes
First seen:2020-11-12 19:01:46 UTC
Last seen:2020-11-13 08:59:43 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'743 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:/3xu1rYrjurf8Hpr/lvOEh272AXTAI7lJI:/3x5WK5/5wpX7o
Threatray 121 similar samples on MalwareBazaar
TLSH 5074AE7AE1FAD407C07BFAB9400E406570EB8D5A2468D70925A83EDD0DB63972077EBD
Reporter James_inthe_box
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.53440.15247.26339.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
DNS request
Connection attempt to an infection source
Enabling autorun by creating a file
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.
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/533299
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Binary contains a suspicious time stamp
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Injects a PE file into a foreign processes
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6ff23b620fbf174a5796eb9e252d3f94672b2e8610435f0f5fd8be2f3a20990c/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-09-18 21:54:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=n7zdwyqpx4luuv4w5opcklj7srtswlugcbbv6d273c7c6oratega._file
Verdict:
suspicious
Similar samples:
1da9ad7dd4d68ace9a56cd237f683b6b0f25af7b28a6123b5659264fca2c7b0c
njrat
2c735ac14ebbaf9008557d05c154f985c2cfbdbcd36f68819fd53a5073c7ec04
njrat
374da77f56a763236c07c8313f3702534043524af5dda3b5d084e127e0c6450b
njrat
4363d2320266f58ce9011c5ed32b16429156d92762ed01843f57eb02bd71aa22
njrat
50200ba284438dc29acae05938fb71be0163ab59fed9b73c177f4e9928317605
njrat
9c93fbc5473c25600f4a7489ab89cd46e5bacda862da1b347fad0bdcbd4df50e
njrat
e65672cd30a737479893bcee2e0d3842dd61e0bf882e476bdb53b00ff9a02379
njrat
e999e044d228cd89941da0c841fdd1a94b896a23cb35961e4a791cefe229760a
njrat
ec34c3db0d2c865486e52760c0d35dab95adcb3544f2e03f5023495d112d64ba
njrat
fa4be5c42a5ef8c05dc68b79b35275a896d1d107752b0fd10fd103146f938867
njrat
+ 111 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/201112-ac8788hxga/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
6ff23b620fbf174a5796eb9e252d3f94672b2e8610435f0f5fd8be2f3a20990c
MD5 hash:
4c0376160176344dcd99e03df5883286
SHA1 hash:
9f1e3bc76be5c63aeb92a05bf560f3f451554673
Link:
https://www.unpac.me/results/bfe34df9-31fd-4926-9f51-68560e49633e/
SH256 hash:
0e6c63e4c3a8314d7c3575d97bfd3a37b111aa281c384ca505d9b25128ff4152
MD5 hash:
f06775a94d6514229c583e5f5699ad73
SHA1 hash:
01b437b3c1a995be036e5c05ee08b87c1c78718e
Link:
https://www.unpac.me/results/bfe34df9-31fd-4926-9f51-68560e49633e/
SH256 hash:
269d533224883d99709c6d3c1e26e8c8a0392e6c07e633a5f97f6329a0e54253
MD5 hash:
361904277c922a2d73c5bea8a11cc30a
SHA1 hash:
10cfc0afc18e62a3efb653f32af4b6435f577a26
Link:
https://www.unpac.me/results/bfe34df9-31fd-4926-9f51-68560e49633e/
SH256 hash:
734837177c33399f5dbdb87b3589c2171a094d4913b0e5b32c4a6edb8132ae4b
MD5 hash:
2dd178c70c8889b30f34edcb197846b1
SHA1 hash:
271f1261a2e2d6b07b288dab8ce0311191c00054
Link:
https://www.unpac.me/results/bfe34df9-31fd-4926-9f51-68560e49633e/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

Comments