MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef. 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 YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef
SHA3-384 hash: 19ea33977851471b16c7b9561feb9025b216a274163e3a71a5eafca7acd02b14075914c5bffad53e1cc3b2b04091bab0
SHA1 hash: 761bddcdcec570e22fe475c731bd87d1f9118376
MD5 hash: 0af9d8753d4b7a52f1960b03ff16f4f9
humanhash: green-football-pip-enemy
File name:0af9d8753d4b7a52f1960b03ff16f4f9.exe
Download: download sample
Signature njrat
Create hunting rule
File size:372'736 bytes
First seen:2021-06-29 19:24:48 UTC
Last seen:2021-06-29 19:55:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:rKnN9Rnq4BzM8j3SJbFiVqqba/T5hVW7nHxKKjcvJzsh1rSKHKxEI9pS:efxqKzf3jjAbU7RKOEs6nEn
Threatray 32 similar samples on MalwareBazaar
TLSH 6B8414EA307B012EF1D5A9FDA891208C04968D5C1C5DA16D2A5AA635E6FDF4C0F4FF32
Reporter abuse_ch
Tags:exe NjRAT RAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
282
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0af9d8753d4b7a52f1960b03ff16f4f9.exe
Verdict:
Malicious activity
Analysis date:
2021-06-29 19:52:28 UTC
Tags:
trojan rat njrat bladabindi
Link:
https://app.any.run/tasks/ca416492-f7e5-448d-a26b-f2fba8beb733

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/168809/
Detection(s):
SecuriteInfo.com.Variant.Bulz.540006.4747.4264.UNOFFICIAL
Create hunting rule

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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1e15a96c-ab20-47b9-a797-cdac0a9b1a25
Result
Threat name:
Njrat
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/809631
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Creates multiple autostart registry keys
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 cmd line tools excessively to alter registry or file data
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Njrat
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 442043 Sample: uXlQdzKw2Q.exe Startdate: 29/06/2021 Architecture: WINDOWS Score: 100 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for dropped file 2->67 69 5 other signatures 2->69 10 uXlQdzKw2Q.exe 1 7 2->10         started        14 update.exe 2 2->14         started        16 update.exe 2 2->16         started        process3 file4 49 C:\Users\user\AppData\...\uXlQdzKw2Q.exe, PE32 10->49 dropped 51 C:\Users\...\uXlQdzKw2Q.exe:Zone.Identifier, ASCII 10->51 dropped 53 C:\Users\user\AppData\...\uXlQdzKw2Q.exe.log, ASCII 10->53 dropped 81 Creates an undocumented autostart registry key 10->81 83 Writes to foreign memory regions 10->83 85 Injects a PE file into a foreign processes 10->85 18 uXlQdzKw2Q.exe 2 4 10->18         started        23 update.exe 14->23         started        25 update.exe 16->25         started        signatures5 process6 dnsIp7 61 192.168.2.1 unknown unknown 18->61 47 C:\Users\user\AppData\Roaming\update.exe, PE32 18->47 dropped 77 Multi AV Scanner detection for dropped file 18->77 79 Uses cmd line tools excessively to alter registry or file data 18->79 27 update.exe 4 18->27         started        31 attrib.exe 1 18->31         started        file8 signatures9 process10 file11 55 C:\Users\user\AppData\Roaming\outlook.exe, PE32 27->55 dropped 57 C:\Users\user\AppData\Local\Temp\update.exe, PE32 27->57 dropped 87 Multi AV Scanner detection for dropped file 27->87 89 Writes to foreign memory regions 27->89 91 Injects a PE file into a foreign processes 27->91 33 update.exe 27->33         started        37 conhost.exe 31->37         started        signatures12 process13 dnsIp14 59 sandshoe.myfirewall.org 45.133.1.67, 49734, 5252 DEDIPATH-LLCUS Netherlands 33->59 71 Multi AV Scanner detection for dropped file 33->71 73 Uses cmd line tools excessively to alter registry or file data 33->73 75 Creates multiple autostart registry keys 33->75 39 attrib.exe 33->39         started        41 attrib.exe 33->41         started        signatures15 process16 process17 43 conhost.exe 39->43         started        45 conhost.exe 41->45         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-06-29 16:04:13 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6opvfskojkh326nuxvsycocytaewa5jmo3i3vvlyekchtjcmlxq._file
Verdict:
suspicious
Similar samples:
20fe42296f9029c30fca68a7ff0b2b81c8498c7df69c66f131232029c0277fb5
njrat
2b1e0b1b320aa81b41cf142297135183f00ad695517f12d3f715fd58eaa6a9c2
njrat
418b71760c6de41ed293744610e252c7474decd221371ffa449411dde751be46
njrat
4347930ebc98dfd11b612dd288b68f23b67d3fcb4afd5e3963e55283f951ba0e
njrat
8c9d614da4ea17f4261a105adbe73992c0df1f5639310f78db244fdf3fe338fe
njrat
d9d27f03e2f8bc97451296da9a7ddeac39ede3240306fa198bf898434b58c53c
njrat
df047189f75d998dc499072881c762fd001360f5cf184b801cb8c232b5c567f6
njrat
e61195d0d4b897536f0cc090d36140099db443b5b913894d13cd76f7abee36b6
njrat
e63d3be538ff76863ee863299e16a554e83908abaab1b59128b398d898cebcf7
njrat
f81e70dd7eb0fa56a4c392c00f3552857a39b53222f0def135bf57c4cc0ef1d2
njrat
+ 22 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence
Link:
https://tria.ge/reports/210629-tj2vqfhf5s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Executes dropped EXE
Modifies WinLogon for persistence
Unpacked files
SH256 hash:
ef81393ba62e9727bb4da304333ae3dfbefb5df9c131e17e93d1bc1dacb45b42
MD5 hash:
2ab65ba840a46b21c914c4e7988e6046
SHA1 hash:
aecad9ea414cc67a6c0d4a244eb2f066fee5ece9
Link:
https://www.unpac.me/results/2ae9ee70-b32e-4286-8c38-5e6b3cc29f50/
SH256 hash:
d22a98c875568bf979c9e8ed05702778587f3e2f0b7275c9f0951b3859a21e2c
MD5 hash:
4a2eee0a39e095c0ae1fd366480c6814
SHA1 hash:
ac6a523588820bd29b8cb598e769172098acf41d
Link:
https://www.unpac.me/results/2ae9ee70-b32e-4286-8c38-5e6b3cc29f50/
SH256 hash:
80ba9969e193011113740dc7b00e5941f12bcb3b7628d51689dc2feba9be8c28
MD5 hash:
198757a53b1cc4ece9e20044ebd14cfe
SHA1 hash:
89da37b132ce7063bac6626a77110ea169383eda
Link:
https://www.unpac.me/results/2ae9ee70-b32e-4286-8c38-5e6b3cc29f50/
SH256 hash:
b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef
MD5 hash:
0af9d8753d4b7a52f1960b03ff16f4f9
SHA1 hash:
761bddcdcec570e22fe475c731bd87d1f9118376
Link:
https://www.unpac.me/results/2ae9ee70-b32e-4286-8c38-5e6b3cc29f50/
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/b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef

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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

njrat

Executable exe b79cfa964a72547debcda5eb2c09c2c4c04b03a963b68dd6abc11423cd2262ef

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/168809/
  
URLhaus
https://urlhaus.abuse.ch/url/1398046/
  
Delivery method
Distributed via web download

Comments