MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6. 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: 16


Intelligence 16 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6
SHA3-384 hash: 11781ac52f824c94f7cad374f1b5a20eef4f002b1426fa850c07150a6faa92e5438cd55cbdc66ad416244df73ba2d64c
SHA1 hash: fbcfebb104fe31aeae0a24b3bd28d92280f012aa
MD5 hash: b1290bf36ae40c7d6ac7dfac9f399848
humanhash: floor-white-quebec-equal
File name:B1290BF36AE40C7D6AC7DFAC9F399848.exe
Download: download sample
Signature njrat
Create hunting rule
File size:67'072 bytes
First seen:2023-10-22 12:10:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'672 x AgentTesla, 19'489 x Formbook, 12'212 x SnakeKeylogger)
ssdeep 1536:lcxR4cEoN36tLQviFw1iW6SBnvb0fLteF3nLrB9z3neaF9bNS9vM:lcxR4cEoN36tLQviFCbhBnYfWl9zuaFn
Threatray 30 similar samples on MalwareBazaar
TLSH T1F0634A4877958A55D2BD2E7844F256518730F60B6D03FB3E48D160EAABB3EC40A42BF7
TrID 48.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.6% (.SCR) Windows screen saver (13097/50/3)
6.9% (.EXE) Win64 Executable (generic) (10523/12/4)
4.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Reporter abuse_ch
Tags:exe NjRAT RAT


Avatar
abuse_ch
njrat C2:
3.69.157.220:11498

Intelligence

File Origin
# of uploads :
1
# of downloads :
436
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
B1290BF36AE40C7D6AC7DFAC9F399848.exe
Verdict:
Malicious activity
Analysis date:
2023-10-22 12:13:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/d1d318dd-3fd8-45e4-a452-4f00f955d6f8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Malware.Ursu-9784017-0
Create hunting rule

Win.Trojan.Generic-6417450-0
Create hunting rule

Win.Trojan.Generic-6454614-0
Create hunting rule

Win.Trojan.Generic-6454615-0
Create hunting rule

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Bladabindi-6192388-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Searching for the window
Сreating synchronization primitives
Creating a file
Creating a file in the %temp% directory
Creating a process from a recently created file
Running batch commands
Creating a process with a hidden window
Launching a process
Enabling the 'hidden' option for recently created files
Enabling the 'hidden' option for files in the %temp% directory
Creating a file in the mass storage device
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm cmd control evasive eventvwr greyware hacktool keylogger lolbin njrat packed rat replace schtasks winnti wscript
Link:
https://www.filescan.io/uploads/65351157e3768e7905c6032b/reports/f5e45a0c-edcf-4242-a764-a3bc4ccb5d3f/overview
Verdict:
Malicious
Labled as:
KillMBR.B.Generic
Link:
https://www.hybrid-analysis.com/sample/20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6
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:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4edcf985-9773-4084-afe6-921ec3e606a2
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1330026
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
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to log keystrokes (.Net Source)
Drops PE files to the startup folder
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Self deletion via cmd or bat file
Sigma detected: Drops fake system file at system root drive
Sigma detected: Drops script at startup location
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Generic Downloader
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1330026 Sample: ZuXcnAYgVp.exe Startdate: 22/10/2023 Architecture: WINDOWS Score: 100 37 6.tcp.eu.ngrok.io 2->37 39 pastebin.com 2->39 47 Snort IDS alert for network traffic 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Found malware configuration 2->51 53 17 other signatures 2->53 8 ZuXcnAYgVp.exe 1 9 2->8         started        12 RuntimeBroker.exe 4 2->12         started        14 RuntimeBroker.exe 4 2->14         started        16 3 other processes 2->16 signatures3 process4 file5 33 C:\Users\user\AppData\...\RuntimeBroker.exe, PE32 8->33 dropped 35 C:\RuntimeBroker.exe, PE32 8->35 dropped 61 Self deletion via cmd or bat file 8->61 18 RuntimeBroker.exe 19 8 8->18         started        23 cmd.exe 1 8->23         started        signatures6 process7 dnsIp8 41 18.197.239.109, 11498, 49747 AMAZON-02US United States 18->41 43 3.69.157.220, 11498, 49749 AMAZON-02US United States 18->43 45 4 other IPs or domains 18->45 29 C:\Users\user\AppData\...\RuntimeBroker.exe, PE32 18->29 dropped 31 C:\Users\user\AppData\...\RuntimeBroker.url, MS 18->31 dropped 55 Multi AV Scanner detection for dropped file 18->55 57 Protects its processes via BreakOnTermination flag 18->57 59 Drops PE files to the startup folder 18->59 25 conhost.exe 23->25         started        27 choice.exe 1 23->27         started        file9 signatures10 process11
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-10-16 17:00:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
31 of 38 (81.58%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ecygu4vqadwzylm5w52mkqzaefyxfbjxvjfehj6iwx62w67qe3da._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
23bb91cc04b475f2acc43bce48f7afc015708568b8e35691981f9cf3f9834d1e
njrat
4f2fb9d8928b5087960d7807d8cb0f2fb2a11291f539e1f18326a7baf0f7e191
njrat
7db1638194f98d1f0546d41cdf2bfae5f7b23319305f9b2b26b2e220f88e88a5
njrat
85d94b63f241688d840e0d2aa58270b93eb019b908366e682c71edd533d86581
njrat
87a340c6dc9b2e994fddc7edb764ab197ce3eb576c4456a89b9faddd5f28b0b4
njrat
eda8e0bd2b4cc55089ac0f090da85b368055d729cdb4eab90bc0a65e856f303f
njrat
f09169b81b9f1f9cd98d796cbbf89bb05415133f38d6f28d694b5e145e93c0be
njrat
fcd18d1ef37a0aa43b1ab1ba9f52f16bfa6d2e5d640c365496b4e8545c67d4b7
njrat
+ 20 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked persistence trojan
Link:
https://tria.ge/reports/231022-pclhnaaa29/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Deletes itself
Drops startup file
Executes dropped EXE
Loads dropped DLL
njRAT/Bladabindi
Malware Config
C2 Extraction:
127.0.0.1:1604
Unpacked files
SH256 hash:
20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6
MD5 hash:
b1290bf36ae40c7d6ac7dfac9f399848
SHA1 hash:
fbcfebb104fe31aeae0a24b3bd28d92280f012aa
Detections:
NjRat
Create hunting rule
win_njrat_w1
Create hunting rule
Link:
https://www.unpac.me/results/41a8e293-1f63-49f0-a38b-263c9af6b948/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/20b06a72b000/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/20b06a72b000ed9c2d9db774c543202171728537aa4a43a7c8b5fdab7bf026c6

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 (Nextron Systems)
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:CN_disclosed_20180208_c_RID2E71
Create hunting rule
Author:Florian Roth
Description:Detects malware from disclosed CN malware set
Reference:https://twitter.com/cyberintproject/status/961714165550342146
Rule name:INDICATOR_SUSPICIOUS_EXE_RawPaste_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi / NjRAT Golden
Rule name:MAL_njrat
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:MAL_Winnti_Sample_May18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:MAL_Winnti_Sample_May18_1_RID3003
Create hunting rule
Author:Florian Roth
Description:Detects malware sample from Burning Umbrella report - Generic Winnti Rule
Reference:https://401trg.pw/burning-umbrella/
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:Njrat
Create hunting rule
Author:botherder https://github.com/botherder
Description:Njrat
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Unknown_Malware_Sample_Jul17_2
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Unknown_Malware_Sample_Jul17_2_RID326D
Create hunting rule
Author:Florian Roth
Description:Detects unknown malware sample with pastebin RAW URL
Reference:https://goo.gl/iqH8CK
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:win_njrat_w1
Create hunting rule
Author:Brian Wallace @botnet_hunter <bwall@ballastsecurity.net>
Description:Identify njRat

File information

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

Comments