MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc. 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 14 File information Comments
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SHA256 hash: 1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc
SHA3-384 hash: aaa96bd4f4cc64aba4f258dd07b66fa02b8649e95a771d2a59f5a696855d7c6d297c6fae776650c60c6a1bebf3d62360
SHA1 hash: 8f3dea852710373fa49a353704c56bcc26f565b1
MD5 hash: 837e7a401c17906aa92c5017f3956f66
humanhash: asparagus-missouri-jig-vermont
File name:file.exe
Download: download sample
Signature njrat
Create hunting rule
File size:95'232 bytes
First seen:2023-06-29 01:43:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:fUVFQWqkqqoLc2mJiIjEwzGi1dDSDBgS:fUVmkqqoA2Gi5i1dk+
Threatray 237 similar samples on MalwareBazaar
TLSH T1FF93E84977E56524E1BF56F79471F2004E34B48B1602E39D48F219EB0A33AC48F89FEA
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter Chainskilabs
Tags:exe NjRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
370
Origin country :
US US
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
2.exe
Verdict:
Malicious activity
Analysis date:
2023-06-28 22:47:14 UTC
Tags:
rat njrat bladabindi stealer
Link:
https://app.any.run/tasks/9afec94a-e9af-4751-b977-9cd2c5850355

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Njrat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/403655/
Detection(s):
Win.Packed.Generic-9795615-0
Create hunting rule

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

Win.Trojan.B-468
Create hunting rule

Win.Trojan.Ratenjay-1
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file in the %AppData% directory
Creating a process with a hidden window
Searching for synchronization primitives
DNS request
Sending a custom TCP request
Launching the process to change the firewall settings
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm cmd control explorer fingerprint fingerprint greyware lolbin msconfig netsh njrat packed rat replace rundll32 schtasks stealer update winnti
Link:
https://www.filescan.io/uploads/649ce1a7313e9da61a5bd17b/reports/a79c19e0-2419-47c7-9c3a-d6f6f616f295/overview
Verdict:
Malicious
Labled as:
Backdoo.11243E86
Link:
https://www.hybrid-analysis.com/sample/1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc
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/322d838c-1e3b-41d7-b370-d27e42e2151a
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1262993
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to spread to USB devices (.Net source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the windows firewall
Multi AV Scanner detection for submitted file
Uses netsh to modify the Windows network and firewall settings
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2023-06-29 01:44:05 UTC
File Type:
PE (.Net Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=dkadvdl7kx5pmzcz6m6h3cpjmgrcvluxb24ekkfzkkyb5dak6poa._file
Verdict:
malicious
Label(s):
njrat
Create hunting rule
Similar samples:
22d63c0ca31019e77eb995fed035cac211e6d82e24e6d54105e26adc0c2d0373
njrat
3f26010f7df570783c73d5c0d852a4a1bb3929fa475179c0cb042eafa79be8c1
njrat
7b489b2c0652daa155af036c9ff79d55c69815bec3eb3e5d0f8489195ed16af0
njrat
a774920e31884f4c91f965e779818f1e552f461ba2f84864163ffc0bab6717ac
njrat
bf8b455cc351263446a8a1afc1f2461d2cbcfca273aaa6be24c22afacd6f281a
njrat
c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc
njrat
f39eb3c952eb90f63ffdac11c6721c4f434bb052957aa6178c2e0fe9529f2bf6
njrat
+ 227 additional samples on MalwareBazaar
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:hacked evasion
Link:
https://tria.ge/reports/230629-b49gxace71/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies Windows Firewall
Malware Config
C2 Extraction:
hakim32.ddns.net:2000
6543etfd2-59719.portmap.host:59719
Unpacked files
SH256 hash:
1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc
MD5 hash:
837e7a401c17906aa92c5017f3956f66
SHA1 hash:
8f3dea852710373fa49a353704c56bcc26f565b1
Link:
https://www.unpac.me/results/088c95dd-4eed-4ea0-a752-8ff05d642fc0/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1a803a8d7f55/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/1a803a8d7f55faf66459f33c7d89e961a22aae970eb84528b952b01e8c0af3dc

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:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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
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: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:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Njrat_30f3c220
Create hunting rule

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/403655/

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