MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc. 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: 15


Intelligence 15 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc
SHA3-384 hash: e0dc9e1fb1b477727cd8f0cfab716487cd7a8d15794d612ccfb5c49e3acf23a2d9fcc1d0b5fb3a4bbd314c2b580dbb2d
SHA1 hash: d156d42a14f16e149e4a7c019c46f8da2d9ec9a3
MD5 hash: 4321b63e30c63e549d84065d0345d1f7
humanhash: quebec-jersey-romeo-lake
File name:df.bin
Download: download sample
Signature njrat
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File size:95'232 bytes
First seen:2022-07-18 18:35:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:LY33UnD9O/pBcxYsbae6GIXb9pDX2t9zPL0OXLeuXxrjEtCdnl2pi1Rz4Rk3asG5:KUxOx6baIa9ROj00ljEwzGi1dDWDVgS
TLSH T16B93E84977E92524E5BF56F79871F2004E34B44B1602E39D48F219AA1B33AC44F89FEB
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter KdssSupport
Tags:exe NjRAT


Avatar
KdssSupport
Uploaded with API

Intelligence

File Origin
# of uploads :
1
# of downloads :
353
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
njrat
Create hunting rule
ID:
1
File name:
df.exe
Verdict:
Malicious activity
Analysis date:
2022-07-18 18:07:30 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/8eb54acc-08d0-4466-b695-0e86d4a5d381

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/291681/
Detection(s):
Win.Packed.Generic-9795615-0
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Win.Trojan.Generic-6417450-0
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Win.Trojan.B-468
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Win.Trojan.Ratenjay-1
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Result
Verdict:
Malware
Maliciousness:

Behaviour
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.exe fingerprint fingerprint greyware keylogger njrat packed rat rundll32.exe stealer update.exe winnti
Link:
https://www.filescan.io/uploads/62d5a7e58fbcdde3605af9b4/reports/e19c257a-23f0-4ea9-b87c-b6655c769352/overview
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/e29a2d8c-9429-4ea2-8e3b-f43d76bd42b1
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
spre.troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1036073
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Contains functionality to spread to USB devices (.Net source)
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/c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
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Status:
Malicious
First seen:
2022-07-18 18:38:28 UTC
File Type:
PE (.Net Exe)
AV detection:
24 of 25 (96.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ytwbopaadsvqda5sgh4icnqcerjjtcjw5jiao5imhtkxshy3ghoa._file
Verdict:
malicious
Label(s):
njrat
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Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat botnet:dddd evasion
Link:
https://tria.ge/reports/220718-w8dk9aecbm/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies Windows Firewall
Malware Config
C2 Extraction:
NC50Y3AuZXUubmdyb2suaW8Strik:MTQ5NDQ=
Unpacked files
SH256 hash:
c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc
MD5 hash:
4321b63e30c63e549d84065d0345d1f7
SHA1 hash:
d156d42a14f16e149e4a7c019c46f8da2d9ec9a3
Link:
https://www.unpac.me/results/0cc2c9a1-850a-4238-89e7-7bcdaef98575/
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c4ec173c001c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc

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: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:malware_Njrat_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect njRAT in memory
Rule name:MALWARE_Win_NjRAT
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Author:ditekSHen
Description:Detects NjRAT / Bladabindi
Rule name:MAL_njrat
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Author:SECUINFRA Falcon Team
Rule name:MAL_Winnti_Sample_May18_1
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: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
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Rule name:Skystars_LightDefender_Njrat_Rule
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Author:Skystars LightDefender
Description:Detects Njrat
Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_netsh_firewall_command
Create hunting rule
Author:SECUINFRA Falcon Team

File information

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

Web download

njrat

Executable exe c4ec173c001cab0183b231f88136022452998936ea5007750c3cd5791f1b31dc

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/291681/

Comments