MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c85ab0293b67d28032dcd903ce9f7eba5ded834c6f831b04ab829f636a936b7b. 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
BitRAT
Vendor detections: 12
Maldoc score: 13
| SHA256 hash: | c85ab0293b67d28032dcd903ce9f7eba5ded834c6f831b04ab829f636a936b7b |
|---|---|
| SHA3-384 hash: | 773cc048d56a1a97c8c397a2de935fa8fcb7de5fecd862b3b281c6604e24e6524d08efc3c35d66ac248e2f5a5985488d |
| SHA1 hash: | 23c4a46e61879a1c4bf2fc2aff5d82f6c4db4e2b |
| MD5 hash: | 5376f38c61fd06af4227f763fb9a9b91 |
| humanhash: | angel-october-mirror-eighteen |
| File name: | Cerere de oferta Startgroup S.R.L.22-12-2021.xlsm |
| Download: | download sample |
| Signature | BitRAT |
| File size: | 48'927 bytes |
| First seen: | 2021-12-23 08:37:42 UTC |
| Last seen: | 2021-12-23 11:07:29 UTC |
| File type: |  xlsm |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 768:msWE4NEdZz/61bLrXKHkHaK9FcQSwQe8amfLj0yu802GuJV8ivOtHkK9bd64Im2Y:mbhNEdZz/61bLrXKHkHaK9WQLQe8v30j |
| TLSH | T11423E13B1ED29E97C259D474245CB894D199A15EC366F20C3ABCAB0162C1E6182CFACE |
| Reporter |  abuse_ch |
| Tags: | BitRAT RAT xlsm |
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: 13 |
OLE dump
MalwareBazaar was able to identify 8 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 527 bytes | PROJECT |
| A2 | 89 bytes | PROJECTwm |
| A3 | 169 bytes | VBA/Sheet1 |
| A4 | 1119 bytes | VBA/ThisWorkbook |
| A5 | 171 bytes | VBA/Workbook |
| A6 | 7 bytes | VBA/_VBA_PROJECT |
| A7 | 228 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_Activate | Runs when the Excel Workbook is opened |
| IOC | Upjzmvko.bat | Executable file name |
| Suspicious | Output | May write to a file (if combined with Open) |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | StrReverse | 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) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | Open | May open a file |
Intelligence
File Origin
# of uploads :
2
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cerere de oferta Startgroup S.R.L.22-12-2021.xlsm
Verdict:
Malicious activity
Analysis date:
2021-12-23 08:38:53 UTC
Tags:
macros macros-on-open
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
DNS request
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Creating a file in the %AppData% directory
Query of malicious DNS domain
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
Sending an HTTP GET request to an infection source
Result
Verdict:
Malicious
File Type:
Excel File with Macro
Document image
Image:
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
cmd macros macros-on-open powershell
Result
Verdict:
MALICIOUS
Link:
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...
Base64 Encoded URL
Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
BitRAT
Detection:
malicious
Classification:
bank.troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Document contains an embedded VBA macro which may execute processes
Document contains VBA stomped code (only p-code) potentially bypassing AV detection
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Encrypted powershell cmdline option found
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious encrypted Powershell command line found
Multi AV Scanner detection for dropped file
Powershell drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: Suspicious Encoded PowerShell Command Line
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected BitRAT
Behaviour
Behavior Graph:
Threat name:
Document-Excel.Trojan.Powload
Status:
Malicious
First seen:
2021-12-23 09:38:43 UTC
File Type:
Document
Extracted files:
27
AV detection:
18 of 43 (41.86%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
bitrat
Score:
10/10
Tags:
family:bitrat macro persistence trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
BitRAT
BitRAT Payload
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://ddl8.data.hu/get/283078/13125554/jogb.exe
Verdict:
Malicious
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: | BitcoinAddress |
|---|---|
| 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.
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