MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4
SHA3-384 hash: bd06b13a6e88a20d449b8968ced884d8878b772aa13e3f75805a09a033e38114a0d5015570beda1fb2ec7f53ee824045
SHA1 hash: 793ca2c4569e1d02753dbe454da6c2dd1a433ef7
MD5 hash: 571eeb3e4b4109fda51f42a50b63da2d
humanhash: avocado-october-butter-texas
File name:571eeb3e4b4109fda51f42a50b63da2d.exe
Download: download sample
Signature njrat
Create hunting rule
File size:908'800 bytes
First seen:2021-04-29 10:55:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:ocApzubQ/d31IzHD/db66Wd3kz7+ddyZg5blvmjUILRGntgajERKh7ICfLc:pZ8l15ez7+ddug55ejUKRp6xKCfLc
Threatray 546 similar samples on MalwareBazaar
TLSH AA157CD1AF4A7A0DD06D6336B09044FC83A7AD2241DCE7E76AE7FDDA57A36C800516C2
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
103.73.64.115:6522

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
103.73.64.115:6522 https://threatfox.abuse.ch/ioc/22250/

Intelligence

File Origin
# of uploads :
1
# of downloads :
121
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
grrrrr.zip
Verdict:
Malicious activity
Analysis date:
2021-04-29 13:08:27 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/ce18351e-ee45-47c6-92f9-d9b0c9f47963

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/146601/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.679.3646.3711.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/702059
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Changes the view of files in windows explorer (hidden files and folders)
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 dropped file
Multi AV Scanner detection for submitted file
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 399951 Sample: HcX1vZ6MMu.exe Startdate: 29/04/2021 Architecture: WINDOWS Score: 100 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 Multi AV Scanner detection for dropped file 2->45 47 10 other signatures 2->47 7 HcX1vZ6MMu.exe 7 2->7         started        process3 file4 29 C:\Users\user\AppData\...\bkSLYCzWxseD.exe, PE32 7->29 dropped 31 C:\Users\...\bkSLYCzWxseD.exe:Zone.Identifier, ASCII 7->31 dropped 33 C:\Users\user\AppData\Local\...\tmp8C78.tmp, XML 7->33 dropped 35 C:\Users\user\AppData\...\HcX1vZ6MMu.exe.log, ASCII 7->35 dropped 49 Uses schtasks.exe or at.exe to add and modify task schedules 7->49 51 Adds a directory exclusion to Windows Defender 7->51 53 Injects a PE file into a foreign processes 7->53 11 HcX1vZ6MMu.exe 7->11         started        15 powershell.exe 25 7->15         started        17 powershell.exe 24 7->17         started        19 2 other processes 7->19 signatures5 process6 dnsIp7 37 stub.ignorelist.com 103.73.64.115, 49723, 6522 HOSTHATCHUS United States 11->37 39 192.168.2.1 unknown unknown 11->39 55 Changes the view of files in windows explorer (hidden files and folders) 11->55 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        25 conhost.exe 19->25         started        27 conhost.exe 19->27         started        signatures8 process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-29 07:59:25 UTC
AV detection:
17 of 29 (58.62%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7gq3sjocnmdwkru3mrgyxblkgfdedqysbghntfodionhtt72l7ka._file
Verdict:
malicious
Similar samples:
3fcfdfcf1b6e70b28e91b0f0899bd4a745265c9f0ed1963249aa9b2dab14bd68
njrat
618f4050d767d0c8f835ec3fa9e46b85b9291062a2e381122852238fa84c95f7
njrat
65778b8834d7849f816c747ae7f3dfc5466ded7781b34959d53cb1a544aaeef5
njrat
8a37e226e4756170421ab6a6667b6771049a7104e7b5b505562df8ba2d2171a1
njrat
95a191b5e1728a1dc9a0007719ae7adba5be88b1ae5e8919185c91a201148a51
njrat
95c3cb601dbbb3632ed38c77863e7787fe21f81d1f39c6dd6e23ce57657d4e32
njrat
aa7bb4cef770d1c8fe06f5e4d7a0bff3c2947df233dd5c78f731a154c07f5013
njrat
b1eb6dca624a1a78cd91360e6af46b0d7bc0afaca59ddf35cfff0ed2b9df4119
njrat
cd8ed20c2ffe0e086d3a0b640e4950e48583f297b6356c14de62623a4322fe12
njrat
d7b031ffe2c4ed9b09bfcdc171677a70adfb4bfef6a094afcb72050912493dc3
njrat
+ 536 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210429-fpkr12w1lx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
e90a19eba5f2de3ba82f652221105bb0682b07c20abddec487c6f4354ea79c39
MD5 hash:
efb0de4397ea61e17d262e278b53ff86
SHA1 hash:
727fdf2ceb13262d56bdda24a02564fb3e80c8b0
Link:
https://www.unpac.me/results/ab966005-f059-4297-82d5-95983d2215ce/
SH256 hash:
f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4
MD5 hash:
571eeb3e4b4109fda51f42a50b63da2d
SHA1 hash:
793ca2c4569e1d02753dbe454da6c2dd1a433ef7
Link:
https://www.unpac.me/results/ab966005-f059-4297-82d5-95983d2215ce/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4

File information

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

Web download

njrat

Executable exe f9a1b925c26b0765469b644d8b856a314641c312098ed995c3439a79cffa5fd4

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/146601/
  
URLhaus
https://urlhaus.abuse.ch/url/1182400/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1182401/

Comments