MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a53d910177170c5b3db633cd8a6f76816eace62d5b5ea5d86ba3240bfd7ba197. 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
AsyncRAT
Vendor detections: 12
Maldoc score: 13
| SHA256 hash: | a53d910177170c5b3db633cd8a6f76816eace62d5b5ea5d86ba3240bfd7ba197 |
|---|---|
| SHA3-384 hash: | 1a71f06d148ac1145ca4344551c91971ab363d4c64dea260d0a26eaf0b9b72b3f2d02efd7cf837c775cd40dc903ee3a8 |
| SHA1 hash: | 5dee76a2832edaa48829d3e702aaf3a8f16626c2 |
| MD5 hash: | d96c08a5155262263e848f6aeb2bc0fd |
| humanhash: | enemy-island-kilo-grey |
| File name: | Cerere de oferta Startgroup S.R.L.05.01.2022.xlsm |
| Download: | download sample |
| Signature | AsyncRAT |
| File size: | 53'341 bytes |
| First seen: | 2022-01-07 07:25:51 UTC |
| Last seen: | 2022-01-07 09:21:29 UTC |
| File type: |  xlsm |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 1536:xSNoVX/M/+UMGNhRRYnWfKZHjm/NckVVt21MQLLDmK:xWotENFYD |
| TLSH | T15033CF970A231E2CCB458DB152706DEB2B83DBED7294F1163F72256AF660C4136C5FA8 |
| Reporter |  abuse_ch |
| Tags: | AsyncRAT geo ROU 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 | 523 bytes | PROJECT |
| A2 | 89 bytes | PROJECTwm |
| A3 | 169 bytes | VBA/Sheet1 |
| A4 | 1083 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 | Ftlicblvlmeabhs.bat | Executable file name |
| Suspicious | Open | May open a file |
| 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) |
Intelligence
File Origin
# of uploads :
2
# of downloads :
235
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Cerere de oferta Startgroup S.R.L.05.01.2022.xlsm
Verdict:
Malicious activity
Analysis date:
2022-01-07 07:29:13 UTC
Tags:
macros macros-on-open loader
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
Searching for the window
DNS request
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
Creating a file
Creating a process with a hidden window
Running batch commands by exploiting the app vulnerability
Launching a file downloaded from the Internet
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
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
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 No Content
Document contains little or no semantic information.
Result
Threat name:
AsyncRAT
Detection:
malicious
Classification:
bank.troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for dropped file
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
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious encrypted Powershell command line found
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential dropper URLs found in powershell memory
Powershell drops PE file
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Threat name:
Document-Word.Trojan.Valyria
Status:
Malicious
First seen:
2022-01-07 07:26:11 UTC
File Type:
Document
Extracted files:
27
AV detection:
17 of 43 (39.53%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
asyncrat
Score:
10/10
Tags:
family:asyncrat botnet:ro macro persistence rat
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Async RAT payload
AsyncRat
Process spawned unexpected child process
Malware Config
C2 Extraction:
212.192.241.87:8754
Dropper Extraction:
http://ddl8.data.hu/get/356815/13148200/joge.exe
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.