MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 0780d67931c09ff7844aac62d057c059ff029b93c35c436038afa65420f83a9a. 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
CobaltStrike
Vendor detections: 7
Maldoc score: 19
| SHA256 hash: | 0780d67931c09ff7844aac62d057c059ff029b93c35c436038afa65420f83a9a |
|---|---|
| SHA3-384 hash: | 13f6938aae7f54dc8296dee92b87579d7452c7f339f569f711717111991fdf0acc8759b6d01896f27683b494eba3398d |
| SHA1 hash: | 3d3d6e68d3a646ae0055ec7e2c90333800727689 |
| MD5 hash: | 6eac93f907e5b905676bd99a7f947552 |
| humanhash: | pluto-california-floor-butter |
| File name: | 6eac93f907e5b905676bd99a7f947552 |
| Download: | download sample |
| Signature | CobaltStrike |
| File size: | 728'576 bytes |
| First seen: | 2021-07-14 20:35:05 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 12288:cRYbXrlUc6XS/CwRl+4MW1H5onZHBDznxcp/c0UGtkbByxlFYd2DrpW:XUc6EjDMW1UrDjxcNcfgZI2 |
| TLSH | T137F458E5ABA4CEB5DB01C1758C9D0A586374CC118A49AFC77255B038FF3BB798E881C6 |
| Reporter |  zbetcheckin |
| Tags: | CobaltStrike excel xlsx |
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: 19 |
| Application name is Microsoft Excel |
| Office document is in OLE format |
| Office document contains VBA Macros |
OLE dump
MalwareBazaar was able to identify 10 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 256 bytes | DocumentSummaryInformation |
| 3 | 268 bytes | SummaryInformation |
| 4 | 711655 bytes | Workbook |
| 5 | 426 bytes | _VBA_PROJECT_CUR/PROJECT |
| 6 | 62 bytes | _VBA_PROJECT_CUR/PROJECTwm |
| 7 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet1 |
| 8 | 2082 bytes | _VBA_PROJECT_CUR/VBA/ThisWorkbook |
| 9 | 2648 bytes | _VBA_PROJECT_CUR/VBA/_VBA_PROJECT |
| 10 | 515 bytes | _VBA_PROJECT_CUR/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 | Environ | May read system environment variables |
| Suspicious | Write | May write to a file (if combined with Open) |
| Suspicious | CreateTextFile | May create a text file |
| Suspicious | Shell | May run an executable file or a system command |
| Suspicious | Wscript.Shell | May run an executable file or a system command |
| Suspicious | CreateObject | May create an OLE object |
| Suspicious | Chr | May attempt to obfuscate specific strings (use option --deobf to deobfuscate) |
| Suspicious | Exec | May run an executable file or a system |
| Suspicious | Hex Strings | Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
491
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
6eac93f907e5b905676bd99a7f947552
Verdict:
No threats detected
Analysis date:
2021-07-14 20:39:21 UTC
Tags:
macros macros-on-open
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Has a screenshot:
False
Contains macros:
True
Detection:
n/a
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
edibleupcountry.com
WorkBook
Document image
Image:
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...
InQuest Machine Learning
An InQuest machine-learning model classified this macro as potentially malicious.
Result
Threat name:
CobaltStrike
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Document contains an embedded VBA macro which may execute processes
Document contains an embedded VBA macro with suspicious strings
Document exploit detected (creates forbidden files)
Document exploit detected (process start blacklist hit)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Microsoft Office creates scripting files
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
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
Tries to detect sandboxes / dynamic malware analysis system (file name check)
Tries to detect virtualization through RDTSC time measurements
Uses known network protocols on non-standard ports
Yara detected CobaltStrike
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Threat name:
Script.Trojan.CobaltStrike
Status:
Malicious
First seen:
2021-07-14 20:36:06 UTC
File Type:
Document
Extracted files:
16
AV detection:
11 of 45 (24.44%)
Threat level:
5/5
Result
Malware family:
cobaltstrike
Score:
10/10
Tags:
family:cobaltstrike botnet:1359593325 backdoor trojan
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Cobaltstrike
Process spawned unexpected child process
Malware Config
C2 Extraction:
http://192.236.146.5:80/cx
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.
Web download
Delivery method
Distributed via web download
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