MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e
SHA3-384 hash: aeb769d5b550b97808b678691218d860159023a25aa64e10126090398970d5695dbefd4a2a3f9447d5edb109f2385b05
SHA1 hash: c8e1018f8fe64b80e169c8bd44eeb049516e037c
MD5 hash: 3ce04b085a3e3ed7a9142b0f27587b21
humanhash: venus-double-kitten-lamp
File name:883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e
Download: download sample
Signature njrat
Create hunting rule
File size:1'323'520 bytes
First seen:2021-09-21 08:38:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d5d9d937853db8b666bd4b525813d7bd (40 x DCRat, 28 x njrat, 5 x RedLineStealer)
ssdeep 24576:+YKpJ05nnRi6ddF9d4DHi4SnNVaUN6iFZfT5jxhWUAjzFzDTTF/nk977N:KQdF42NVb6KVWPFzLF47N
Threatray 5 similar samples on MalwareBazaar
TLSH T1305533575C2D31BEFB0CDC31B79C1376031D164DA22568AE0EDB1BD092AB7B19EA1227
Reporter JAMESWT_WT
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
392
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e
Verdict:
Malicious activity
Analysis date:
2021-09-21 09:19:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/e7ea41a5-3f81-40c3-ab2b-2e62d4b5cd1c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
plugx
Create hunting rule
Link:
https://www.capesandbox.com/analysis/189807/
Detection(s):
Win.Trojan.Poison-8692
Create hunting rule

Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23bc885a-65f6-432a-9181-d40142e1ffff
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.adwa.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/854688
Signature
.NET source code contains potential unpacker
.NET source code contains process injector
.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
Contains functionality to spread to USB devices (.Net source)
Creates autorun.inf (USB autostart)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables the Windows task manager (taskmgr)
Drops PE files to the startup folder
Found malware configuration
Hides threads from debuggers
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
Multi AV Scanner detection for submitted file
PE file has nameless sections
Tries to evade analysis by execution special instruction which cause usermode exception
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: 487119 Sample: E4oDwamfjH Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 Antivirus detection for dropped file 2->62 64 12 other signatures 2->64 9 E4oDwamfjH.exe 10 2->9         started        process3 file4 44 C:\Users\user\...\loaderc_protected.exe, PE32 9->44 dropped 46 C:\Users\user\AppData\...\SimpleLoader.exe, PE32 9->46 dropped 12 loaderc_protected.exe 7 9->12         started        16 SimpleLoader.exe 15 2 9->16         started        process5 dnsIp6 48 C:\Users\user\AppData\Roaming\server.exe, PE32 12->48 dropped 74 Antivirus detection for dropped file 12->74 76 Multi AV Scanner detection for dropped file 12->76 78 Detected unpacking (changes PE section rights) 12->78 82 3 other signatures 12->82 19 server.exe 2 14 12->19         started        50 google.com 142.250.180.206, 443, 49743 GOOGLEUS United States 16->50 52 www.google.com 142.250.201.196, 443, 49744 GOOGLEUS United States 16->52 54 192.168.2.1 unknown unknown 16->54 80 Machine Learning detection for dropped file 16->80 file7 signatures8 process9 dnsIp10 56 127.0.0.1 unknown unknown 19->56 36 C:\system.exe, PE32 19->36 dropped 38 e631e01d9d554559c0...fWindows Update.exe, PE32 19->38 dropped 40 C:\Users\user\...\Microsoft Corporation.exe, PE32 19->40 dropped 42 3 other malicious files 19->42 dropped 66 Antivirus detection for dropped file 19->66 68 Multi AV Scanner detection for dropped file 19->68 70 Creates autorun.inf (USB autostart) 19->70 72 7 other signatures 19->72 24 netsh.exe 1 3 19->24         started        26 netsh.exe 3 19->26         started        28 netsh.exe 3 19->28         started        file11 signatures12 process13 process14 30 conhost.exe 24->30         started        32 conhost.exe 26->32         started        34 conhost.exe 28->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e/
Threat name:
Win32.Trojan.VBinder
Create hunting rule
Status:
Malicious
First seen:
2021-09-19 02:10:41 UTC
AV detection:
43 of 45 (95.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ra7ml6jboudtem45sld5znuugbaoyeownjwptz6xuncwveu2jnxa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
4a609a3b08a038e69f7783249ff56e6d6abc877dfc192d50b1e352e83829ac7e
njrat
902b4a3bf6eca808110904b3fa14cdadd83b6ca3bc53b9b9c5cb0321586b1aa9
njrat
ddd019669afb9f1adad82d960f9e6edc9329e80d91cf7e5b3f1da8698518ec00
njrat
e734ac6c26b18d7af17f9dd4d54752c0159df8fddbc553d3d518b0d8c63d0169
njrat
Result
Malware family:
n/a
Score:
  8/10
Tags:
evasion
Link:
https://tria.ge/reports/210921-kkc42aghg5/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops autorun.inf file
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops startup file
Loads dropped DLL
Disables Task Manager via registry modification
Executes dropped EXE
Modifies Windows Firewall
Unpacked files
SH256 hash:
06957330a4493c4baf1772737955a6f7be05413490cacdda47e4bb7bb3e6113b
MD5 hash:
1a6bcd2b23cae7575dd5f3831f4798fb
SHA1 hash:
af444c09f566b0577fd450c195fc9e8c86312f45
Link:
https://www.unpac.me/results/b3c795b0-6ddd-4608-a423-439f628fd7d6/
SH256 hash:
883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e
MD5 hash:
3ce04b085a3e3ed7a9142b0f27587b21
SHA1 hash:
c8e1018f8fe64b80e169c8bd44eeb049516e037c
Link:
https://www.unpac.me/results/b3c795b0-6ddd-4608-a423-439f628fd7d6/
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/883ec5f921750732339d92c7dcb6943040ec11d66a6cf9e7d7a3456a929a4b6e

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:EnigmaStub
Create hunting rule
Author:@bartblaze
Description:Identifies Enigma packer stub.
Rule name:MALWARE_Win_NjRAT
Create hunting rule
Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:Njrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_LightDefender_Njrat_Rule
Create hunting rule
Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_smominru_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.smominru.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/189807/

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