MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27ae4533158f4a5e2ab70f57a674e6d84c989b13dd89fdb0fefadbeb22bffc95. 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: 8


Intelligence 8 IOCs 1 YARA File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 27ae4533158f4a5e2ab70f57a674e6d84c989b13dd89fdb0fefadbeb22bffc95
SHA3-384 hash: 6411e9ec3648aa27c3ce258367e095089fd9c7451847e09d17a113e5ab4f58da1c968f5bdef281048c8b06c5a0aacd95
SHA1 hash: 25b95947574698021bf7e3c86c8aa34bd031b32a
MD5 hash: af600d3d9b4f7e115082fe3cd7156fd1
humanhash: kilo-cold-finch-saturn
File name:AF600D3D9B4F7E115082FE3CD7156FD1.exe
Download: download sample
Signature njrat
Create hunting rule
File size:17'075'670 bytes
First seen:2021-05-16 00:40:31 UTC
Last seen:2021-05-16 01:04:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ae9f6a32bb8b03dce37903edbc855ba1 (28 x CryptOne, 18 x RedLineStealer, 15 x njrat)
ssdeep 393216:74DKFqapYg3CRT9rkCA+Rij7UnA9ngMrrC+5UO3eQ5uB/jlKEWQ/W13PX+xHgm:e1aSg8RrXRsY+ngm0OuQurlJ/q/8Hgm
Threatray 9 similar samples on MalwareBazaar
TLSH 9F07337074E2C8B5DB70283DA6F46760AE3E3C202D17C9CF47AE1C5D8DE12A7A926751
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
180.180.25.182:5552

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
180.180.25.182:5552 https://threatfox.abuse.ch/ioc/43140/

Intelligence

File Origin
# of uploads :
2
# of downloads :
287
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AF600D3D9B4F7E115082FE3CD7156FD1.exe
Verdict:
No threats detected
Analysis date:
2021-05-16 00:43:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e3fa4cf9-4ea6-4275-a642-b4309fba3c3b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the Windows directory
Creating a process from a recently created file
Creating a file in the Program Files subdirectories
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file
Creating a process with a hidden window
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Unauthorized injection to a recently created process
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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.
Result
Threat name:
njRat
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/782910
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Found malware configuration
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect virtualization through RDTSC time measurements
Uses dynamic DNS services
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 415306 Sample: aFym9UmmVu.exe Startdate: 16/05/2021 Architecture: WINDOWS Score: 100 58 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 12 other signatures 2->64 9 aFym9UmmVu.exe 3 6 2->9         started        13 svchost.exe 2->13         started        15 svchost.exe 9 1 2->15         started        18 11 other processes 2->18 process3 dnsIp4 50 C:\Windows\m4177.exe, PE32 9->50 dropped 52 C:\Windows\Patch32.exe, PE32 9->52 dropped 74 Drops executables to the windows directory (C:\Windows) and starts them 9->74 20 m4177.exe 1 5 9->20         started        24 Patch32.exe 6 9->24         started        26 wscript.exe 9->26         started        76 Changes security center settings (notifications, updates, antivirus, firewall) 13->76 28 MpCmdRun.exe 13->28         started        56 127.0.0.1 unknown unknown 15->56 file5 signatures6 process7 file8 44 C:\Users\user\AppData\Roaming\svchost.exe, PE32 20->44 dropped 66 Antivirus detection for dropped file 20->66 68 Multi AV Scanner detection for dropped file 20->68 70 Machine Learning detection for dropped file 20->70 72 Drops PE files with benign system names 20->72 30 svchost.exe 4 4 20->30         started        46 C:\Program Files\ManyCam\ManyCam.exe.BAK, PE32 24->46 dropped 48 C:\Program Files\ManyCam\ManyCam.exe, PE32 24->48 dropped 34 ManyCam.exe 24->34         started        36 conhost.exe 28->36         started        signatures9 process10 dnsIp11 54 ddnsrtm.ddns.net 180.180.25.182, 49726, 5552 TOT-NETTOTPublicCompanyLimitedTH Thailand 30->54 78 Antivirus detection for dropped file 30->78 80 System process connects to network (likely due to code injection or exploit) 30->80 82 Multi AV Scanner detection for dropped file 30->82 86 4 other signatures 30->86 38 netsh.exe 1 3 30->38         started        84 Tries to detect sandboxes / dynamic malware analysis system (registry check) 34->84 40 pcaui.exe 34->40         started        signatures12 process13 process14 42 conhost.exe 38->42         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27ae4533158f4a5e2ab70f57a674e6d84c989b13dd89fdb0fefadbeb22bffc95/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2021-05-13 12:44:59 UTC
AV detection:
37 of 47 (78.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=e6xekmyvr5ff4kvxb5l2m5hg3bgjrgyt3we73mh67ln6wiv77skq._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
118dd258630c48b0beacd8b4c04c9c9cd3b9f698b660b6a904b1dfc033e00cd1
njrat
2d725c799e8787ef98e26cb025144cbe405aef31bc4ddd2011c80c09efa87400
njrat
5e4cb5b794577345c50a2012ee0ece2301012527d17646d984a253781bcd39c9
njrat
689290a8b842a0fd09f5ce00654d64d70d0be3e19e2ca60d5dd3d199d3e09054
njrat
9f452d7d0048825bc6a35952dd645d68e6b5788858481998c660b8b31d1e1b63
njrat
a080aa812c19b8bbe2b32ac62f362909cebc68658ec751be2ee234ffd1200f47
njrat
b833d79953fe177a48a5832ce2606c41d00f0d5b9bd31ceb25d3055a3850c2f7
njrat
d33a9b8def5c0bc379362bf5924cd9697d2b219bcc412399814b160f9627c3c3
njrat
fcbdafcedb7e9d18b0c8b640e375975320e6f74fd4170fea17b2ca210215d855
njrat
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat evasion persistence trojan
Link:
https://tria.ge/reports/210516-l4v5d7dt42/
Behaviour
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Adds Run key to start application
Checks BIOS information in registry
Identifies Wine through registry keys
Loads dropped DLL
Executes dropped EXE
Modifies Windows Firewall
Identifies VirtualBox via ACPI registry values (likely anti-VM)
njRAT/Bladabindi
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
NJRat
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/27ae4533158f4a5e2ab70f57a674e6d84c989b13dd89fdb0fefadbeb22bffc95

File information

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

Comments


Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-16 01:00:45 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection
1) [C0029.002] Cryptography Micro-objective::SHA1::Cryptographic Hash
2) [C0027.001] Cryptography Micro-objective::AES::Encrypt Data
3) [C0021] Cryptography Micro-objective::Generate Pseudo-random Sequence
4) [C0032.001] Data Micro-objective::CRC32::Checksum
5) [C0026.002] Data Micro-objective::XOR::Encode Data
6) [F0004.007] Defense Evasion::Bypass Windows File Protection
9) [C0046] File System Micro-objective::Create Directory
10) [C0047] File System Micro-objective::Delete File
11) [C0049] File System Micro-objective::Get File Attributes
12) [C0051] File System Micro-objective::Read File
13) [C0050] File System Micro-objective::Set File Attributes
14) [C0052] File System Micro-objective::Writes File
15) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
16) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
17) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
18) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
19) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
20) [C0040] Process Micro-objective::Allocate Thread Local Storage
21) [C0017] Process Micro-objective::Create Process
22) [C0041] Process Micro-objective::Set Thread Local Storage Value
23) [C0018] Process Micro-objective::Terminate Process