MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce. 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 1 File information Comments
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SHA256 hash: 62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce
SHA3-384 hash: a9a285eca5d2c3011ce7c6c00d240b7ce6f79090f5c03f471f467659ff514964b6846f7cbb57846f97c721ca48c88c3a
SHA1 hash: 8c99de3829f6c5a82d0dd96b55b5ae86b5860f8e
MD5 hash: 56fc85bd91e505a96fe56c0881a98d3e
humanhash: six-friend-finch-shade
File name:Comprovante.ppam
Download: download sample
Signature njrat
Create hunting rule
File size:23'221 bytes
First seen:2021-12-22 05:06:12 UTC
Last seen:Never
File type:PowerPoint file ppam
MIME type:application/vnd.openxmlformats-officedocument.presentationml.presentation
ssdeep 384:dXPpI7j6uDz9+u8jae3tkzFp3BoDJWz8KKNaGOSpJE3YiJV0FkZsx6Tm91Mh:VPS+u8TdkzF9BolJPbNibz0FkZcl1u
TLSH T15EA2D05F34226842D27A16BCD7897431F7EC3026A5C0DA3B7036F10407E2D869B4B6EE
Reporter ankit_anubhav
Tags:NjRAT ppam

Intelligence

File Origin
# of uploads :
1
# of downloads :
335
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Office.Macro-11.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malicious
File Type:
Legacy PowerPoint File with Macro
Link:
https://app.docguard.net/62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce/results/dashboard
Payload URLs
URL
File name
https://wtools.io/code/dl/b80V$
vbaProject.bin
Verdict:
Malicious
Threat level:
  10/10
Confidence:
60%
Tags:
macros macros-on-open wscript
Link:
https://www.filescan.io/uploads/61c2b279ec6c6c14a9e93650/reports/7694b2a0-a29e-4a7e-a6e0-64ccd9209bf8/overview
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro with File System Write
Detected macro logic that can write data to the file system.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Result
Threat name:
Unknown
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911367
Signature
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document contains an embedded VBA with functions possibly related to ADO stream file operations
Document contains an embedded VBA with functions possibly related to HTTP operations
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Drops VBS files to the startup folder
Microsoft Office drops suspicious files
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: Drops script at startup location
Sigma detected: Encoded FromBase64String
Sigma detected: FromBase64String Command Line
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious PowerShell Cmdline
Suspicious powershell command line found
System process connects to network (likely due to code injection or exploit)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Very long command line found
Wscript starts Powershell (via cmd or directly)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 543845 Sample: Comprovante.ppam Startdate: 22/12/2021 Architecture: WINDOWS Score: 100 70 Multi AV Scanner detection for submitted file 2->70 72 Sigma detected: Encoded FromBase64String 2->72 74 Sigma detected: Drops script at startup location 2->74 76 8 other signatures 2->76 10 cmd.exe 1 2->10         started        12 wscript.exe 2->12         started        16 POWERPNT.EXE 501 3 2->16         started        process3 dnsIp4 18 POWERPNT.EXE 156 31 10->18         started        64 172.67.164.22, 443, 49167 CLOUDFLARENETUS United States 12->64 66 pasteio.com 12->66 120 System process connects to network (likely due to code injection or exploit) 12->120 122 Suspicious powershell command line found 12->122 124 Wscript starts Powershell (via cmd or directly) 12->124 126 Very long command line found 12->126 23 powershell.exe 12->23         started        25 cmd.exe 12->25         started        signatures5 process6 dnsIp7 60 wtools.io 172.67.135.130, 443, 49165 CLOUDFLARENETUS United States 18->60 56 C:\Program Files (x86)\AutoIt3\x.vbs, Little-endian 18->56 dropped 78 Document exploit detected (creates forbidden files) 18->78 80 Microsoft Office drops suspicious files 18->80 27 wscript.exe 10 18->27         started        82 Suspicious powershell command line found 23->82 84 Obfuscated command line found 23->84 86 Very long command line found 23->86 31 powershell.exe 23->31         started        88 Uses ping.exe to sleep 25->88 33 cmd.exe 25->33         started        35 PING.EXE 25->35         started        file8 signatures9 process10 dnsIp11 62 pasteio.com 104.21.57.139, 443, 49166 CLOUDFLARENETUS United States 27->62 110 System process connects to network (likely due to code injection or exploit) 27->110 112 Suspicious powershell command line found 27->112 114 Wscript starts Powershell (via cmd or directly) 27->114 116 Very long command line found 27->116 37 cmd.exe 27->37         started        40 powershell.exe 7 27->40         started        42 powershell.exe 33->42         started        signatures12 process13 signatures14 90 Wscript starts Powershell (via cmd or directly) 37->90 92 Uses ping.exe to sleep 37->92 94 Uses ping.exe to check the status of other devices and networks 37->94 44 cmd.exe 37->44         started        47 PING.EXE 37->47         started        96 Suspicious powershell command line found 40->96 98 Obfuscated command line found 40->98 100 Very long command line found 40->100 50 powershell.exe 7 40->50         started        process15 dnsIp16 118 Wscript starts Powershell (via cmd or directly) 44->118 52 powershell.exe 7 44->52         started        68 127.0.0.1 unknown unknown 47->68 signatures17 process18 file19 58 C:\Users\user\AppData\Roaming\...\KYO.vbs, Little-endian 52->58 dropped 102 Suspicious powershell command line found 52->102 104 Obfuscated command line found 52->104 106 Very long command line found 52->106 108 Drops VBS files to the startup folder 52->108 signatures20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce/
Threat name:
Script-Macro.Downloader.Powdow
Create hunting rule
Status:
Malicious
First seen:
2021-12-22 03:24:49 UTC
File Type:
Document
Extracted files:
226
AV detection:
15 of 28 (53.57%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mjkaxjlt5bz3qfwt3flbgkaeevfcgid6np6j66rxdjuplkuasdha._file
Result
Malware family:
njrat
Create hunting rule
Score:
  10/10
Tags:
family:njrat trojan
Link:
https://tria.ge/reports/211222-frz5xsfaa7/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Runs ping.exe
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops startup file
Blocklisted process makes network request
Process spawned unexpected child process
njRAT/Bladabindi
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/62540ba573e873b816d3d956132804254a23207e6bfc9f7a371a68f5aa8090ce

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address

File information

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

Comments