MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d
SHA3-384 hash: efd7f66f960e994a57daaa56903c8ffc836883b49240617ce4bb7dc523be502132e3a2e59589534cd48036d2fd13b9b1
SHA1 hash: 715c72c3c748842176769fb92c73ddf7a9474b5a
MD5 hash: 1213c77e3fc79ffedb83920fc53b3266
humanhash: summer-blue-ink-hotel
File name:k6aRShSGVN5Y56m.exe
Download: download sample
Signature njrat
Create hunting rule
File size:458'240 bytes
First seen:2020-10-23 17:36:02 UTC
Last seen:2020-10-23 19:27:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:ORwrpjMiMhXazWhonJztTqzx8dRCAJ7bWORThyYNnTXg9k7Z5+viO53PB/Il7HSp:7TMBYRnG18B79TNXgOZ4viOBPNIl7GF
Threatray 314 similar samples on MalwareBazaar
TLSH 7BA4F11031D82FB1D6BE4BF6243C964A83B6784F1A75D65C0DE136EE5A90F018B64FA3
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
Malspam distributing njrat:

HELO: countrywoods.co.za
Sending IP: 45.138.172.120
From: Gerard Bouman <sales@countrywoods.co.za>
Reply-To: Gerard Bouman <sales@countrywoods.co.za>
Subject: RE:
Attachment: PDF455667442.img (contains "k6aRShSGVN5Y56m.exe")

Intelligence

File Origin
# of uploads :
3
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/75117/
Detection(s):
SecuriteInfo.com.generic.ml.12560.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Creating a file
Result
Threat name:
njRat AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/508348
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus detection for dropped file
Binary contains a suspicious time stamp
Contains functionality to log keystrokes (.Net Source)
Creates autostart registry keys with suspicious names
Detected njRat
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)
Modifies the windows firewall
Multi AV Scanner detection for dropped 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)
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 303294 Sample: k6aRShSGVN5Y56m.exe Startdate: 23/10/2020 Architecture: WINDOWS Score: 100 94 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 Antivirus detection for dropped file 2->98 100 17 other signatures 2->100 9 k6aRShSGVN5Y56m.exe 6 2->9         started        13 server.exe 2->13         started        15 server.exe 2->15         started        17 server.exe 2->17         started        process3 file4 72 C:\Users\user\AppData\Roaming\LsKbmcU.exe, PE32 9->72 dropped 74 C:\Users\user\AppData\Local\...\tmp9F58.tmp, XML 9->74 dropped 76 C:\Users\user\...\k6aRShSGVN5Y56m.exe.log, ASCII 9->76 dropped 106 Injects a PE file into a foreign processes 9->106 19 k6aRShSGVN5Y56m.exe 1 2 9->19         started        22 schtasks.exe 1 9->22         started        24 schtasks.exe 13->24         started        26 server.exe 13->26         started        28 schtasks.exe 15->28         started        30 server.exe 15->30         started        32 schtasks.exe 17->32         started        34 server.exe 17->34         started        signatures5 process6 file7 70 C:\Users\user\AppData\Local\Temp\server.exe, PE32 19->70 dropped 36 server.exe 5 19->36         started        39 conhost.exe 22->39         started        41 conhost.exe 24->41         started        43 conhost.exe 28->43         started        45 conhost.exe 32->45         started        process8 signatures9 102 Machine Learning detection for dropped file 36->102 104 Injects a PE file into a foreign processes 36->104 47 server.exe 6 9 36->47         started        52 schtasks.exe 1 36->52         started        54 server.exe 36->54         started        56 tmp573E.tmp.exe 39->56         started        58 netsh.exe 39->58         started        process10 dnsIp11 78 185.19.85.164, 49716, 49738, 5596 DATAWIRE-ASCH Switzerland 47->78 64 C:\Users\user\AppData\...\tmp9B6C.tmp.exe, PE32 47->64 dropped 66 C:\Users\user\AppData\...\tmp573E.tmp.exe, PE32 47->66 dropped 68 C:\Users\user\AppData\...\tmp4E81.tmp.exe, PE32 47->68 dropped 80 Creates autostart registry keys with suspicious names 47->80 82 Tries to harvest and steal ftp login credentials 47->82 84 Tries to harvest and steal browser information (history, passwords, etc) 47->84 60 conhost.exe 52->60         started        86 Antivirus detection for dropped file 56->86 88 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 56->88 90 Machine Learning detection for dropped file 56->90 92 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 56->92 62 conhost.exe 58->62         started        file12 signatures13 process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-23 17:04:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=bz5suogkxq474p6vwvdmappictmiqnbuuaojegzljo6rvfaxkzgq._file
Verdict:
malicious
Similar samples:
1e77593073ce7c57226c55e20d5ca2e09c84c86a083a9d56b3dd1bb732305683
njrat
46fa7b3768b1f91187f59fb97a88e1efbbe603dc88419c73da07c627e9d57f74
njrat
4f7ee2b1be709d2dfcfb894323ac4b6a3f3b0482c646d49b051769a6e3785239
njrat
69bc3e840c7aeb2c0eaa156a23c7717fb2352c7a4e1a28deedfbc25b79b27b82
njrat
bbbd41df9ee8363af5927a1b8f8b6d373edc69b34069c3a1ff0e5696138a290d
njrat
bc341eccbdfecf1616134d92035e90b0622ec6731e5c5f74418f00ce3033a689
njrat
bf7610bec2416bf141156e8d2b89ef52a2a80fa7b065d717dc9d393be4725206
njrat
c96d7a2be148621094eb933be12d8c2bda0ae6f8f7c51dcbeca6ccd2b78ad4c7
njrat
e1c12e80d4fe90ebf246356de9336ba64ce4263eaf2525c27412d534b8a89b29
njrat
f4ae0a96fe157d059c62d52e5934283f6055e822451db81a0bb9f646e98dc310
njrat
+ 304 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
evasion persistence trojan family:njrat spyware
Link:
https://tria.ge/reports/201023-jv2bkm731a/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies service
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Executes dropped EXE
Modifies Windows Firewall
njRAT/Bladabindi
Unpacked files
SH256 hash:
a422b3f60537547ed3e01edb44f3ba7fbed612e16b51bb8658416b35dd34b9c0
MD5 hash:
03455acc48f46d7e7d06efabd6e99caf
SHA1 hash:
a993ff219de00504a775457e3813a579450f194f
Link:
https://www.unpac.me/results/180a8192-0bd5-4228-b52b-ef21ac5b7c79/
SH256 hash:
7475120381d0c9847851145b38272745f9c40cad7f823d181d0bba43c258cfd1
MD5 hash:
88f79b10ffe5d9b24022027fea240e0b
SHA1 hash:
06d4e4ac5bd7a5c02270682d45ce3244668f1e38
Detections:
win_njrat_w1
Create hunting rule
win_njrat_g1
Create hunting rule
Link:
https://www.unpac.me/results/180a8192-0bd5-4228-b52b-ef21ac5b7c79/
SH256 hash:
ce98332d1051228566b5e7e8d918d7b67cee19c6f8070b0aa2d2395d346b5950
MD5 hash:
149f89fb358cd4c4e27b6e475539e8ca
SHA1 hash:
7799e819a4cc8771f046da4013ae4fe480d79773
Link:
https://www.unpac.me/results/180a8192-0bd5-4228-b52b-ef21ac5b7c79/
SH256 hash:
0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d
MD5 hash:
1213c77e3fc79ffedb83920fc53b3266
SHA1 hash:
715c72c3c748842176769fb92c73ddf7a9474b5a
Link:
https://www.unpac.me/results/180a8192-0bd5-4228-b52b-ef21ac5b7c79/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d

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:CN_disclosed_20180208_c
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter
Description:Identify njRat

File information

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

Malspam

njrat

img bc6e92d0ce0c483e3f31547c8c9c85e74c3da4d50476b894b3f116903ebe18c4

njrat

Executable exe 0e7b2a38cabc39fe3fd5b546c03de814d8883434a01c921b2b4bbd1a9417564d

(this sample)

  
Dropped by
MD5 b07ec93cae7883be9766c0d273333dcf
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/75117/
  
Dropped by
SHA256 bc6e92d0ce0c483e3f31547c8c9c85e74c3da4d50476b894b3f116903ebe18c4

Comments