MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7. 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
Maldoc score: 7
| SHA256 hash: | 5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7 |
|---|---|
| SHA3-384 hash: | 00532537ef58b454fee8062d13393f8390a19b9cc98aaeff5807f77074e4e0256eb047404e4fbd031931af4771089671 |
| SHA1 hash: | 39b3ea7c2294c34a9782dab109d8cfbfa04a2b35 |
| MD5 hash: | 20f158ab7c453b5793b7492e8c5679a5 |
| humanhash: | hydrogen-winter-six-california |
| File name: | Vodafone Bill.xlsm |
| Download: | download sample |
| Signature | njrat |
| File size: | 86'921 bytes |
| First seen: | 2021-02-18 06:39:03 UTC |
| Last seen: | 2021-02-18 08:39:37 UTC |
| File type: |  xlsm |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 1536:wX+DxW6DP04KTouY6+pdQ8nsfzBayZeZMx6LCBtUKZojzYvh01z:wX+DF/uYVDQ8QzBayZeZQ6uvck21z |
| TLSH | B7834A478D05EBD7E01C92F9BE074DAC6F1A2B1D94C23AEE10530D9B7E613252D8E1AD |
| Reporter |  abuse_ch |
| Tags: | NjRAT RAT xlsm |
abuse_ch
Malspam distributing njrat:HELO: smtp-out.neti.ee
Sending IP: 194.126.106.70
From: Vodafone <no-reply@vodafone.de>
Subject: Your Vodafone bill is available
Attachment: Vodafone Bill.xlsm
NjRAT payload URL:
http://www.zhuoxinwei.com/work.exe
NjRAT C2:
binancino.hopto.org:81
Office OLE Information
This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.
OLE id
| Maldoc score: 7 |
OLE dump
MalwareBazaar was able to identify 13 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 422 bytes | PROJECT |
| A2 | 62 bytes | PROJECTwm |
| A3 | 1150 bytes | VBA/Sheet1 |
| A4 | 17477 bytes | VBA/ThisWorkbook |
| A5 | 2585 bytes | VBA/_VBA_PROJECT |
| A6 | 1441 bytes | VBA/__SRP_0 |
| A7 | 158 bytes | VBA/__SRP_1 |
| A8 | 276 bytes | VBA/__SRP_2 |
| A9 | 66 bytes | VBA/__SRP_3 |
| A10 | 456 bytes | VBA/__SRP_4 |
| A11 | 193 bytes | VBA/__SRP_5 |
| A12 | 522 bytes | VBA/dir |
OLE vba
MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:
| Type | Keyword | Description |
|---|---|---|
| AutoExec | Workbook_Open | Runs when the Excel Workbook is opened |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | Chr | May attempt to obfuscate specific strings (use option --deobf to deobfuscate) |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
2
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5ca061faa8e7a7ef6f6d2ac3329966d1b8816421911e2813879497777e5622e7
Verdict:
Malicious activity
Analysis date:
2021-02-18 17:14:30 UTC
Tags:
macros macros-on-open generated-doc rat njrat bladabindi
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
DNS request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Creating a process from a recently created file
Searching for the window
Connection attempt
Unauthorized injection to a recently created process by context flags manipulation
Launching the process to change the firewall settings
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Running batch commands by exploiting the app vulnerability
Enabling autorun by creating a file
Result
Verdict:
Suspicious
File Type:
Excel File with Macro
Document image
Image:
Result
Verdict:
MALICIOUS
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Macro Contains Suspicious String
Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...
Document With No Content
Document contains little or no semantic information.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
expl.evad
Score:
80 / 100
Signature
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Valyria
Status:
Malicious
First seen:
2021-02-18 06:39:17 UTC
AV detection:
16 of 45 (35.56%)
Threat level:
5/5
Detection(s):
Malicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
agilenet evasion macro persistence
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Blocklisted process makes network request
Executes dropped EXE
Modifies Windows Firewall
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://www.zhuoxinwei.com/work.exe
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | Email_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Email in files like avemaria |
| Rule name: | IPPort_combo_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | MAL_Winnti_Sample_May18_1 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects malware sample from Burning Umbrella report - Generic Winnti Rule |
| Reference: | https://401trg.pw/burning-umbrella/ |
| Rule name: | Select_from_enumeration |
|---|---|
| Author: | James_inthe_box |
| Description: | IP and port combo |
| Rule name: | SharedStrings |
|---|---|
| Author: | Katie Kleemola |
| Description: | Internal names found in LURK0/CCTV0 samples |
| Rule name: | UAC_bypass_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | UAC bypass in files like avemaria |
| Rule name: | win_njrat_w1 |
|---|---|
| Author: | Brian Wallace @botnet_hunter <bwall@ballastsecurity.net> |
| Description: | Identify njRat |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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