MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d3788e69dd125449af3d985de93701c49cef0658bc98e3b449185f86cbee027d. 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
Quakbot
Vendor detections: 10
Maldoc score: 8
| SHA256 hash: | d3788e69dd125449af3d985de93701c49cef0658bc98e3b449185f86cbee027d |
|---|---|
| SHA3-384 hash: | cd6fe75799f969ba559160aa80e861fd2121931b5e21a28e0b2dca40d65d650dc9d168724bc5ac72323e159591cfa8c0 |
| SHA1 hash: | f4475896b8a0e6d6c4d21eb433df2926affccfcc |
| MD5 hash: | 4f8a3fbbb04355b3671d7bdd0c6b77b3 |
| humanhash: | north-four-hot-spring |
| File name: | EABE-1892921085.xlsb |
| Download: | download sample |
| Signature | Quakbot |
| File size: | 238'905 bytes |
| First seen: | 2022-10-05 14:33:16 UTC |
| Last seen: | Never |
| File type: |  xlsx |
| MIME type: | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
| ssdeep | 3072:CsRqaz6kqB/EsWcXCJGbtyntvHGiYMnIOwKSIYFUQRLmTDBwszHbcOQafZDK:Csw5nRXCw+DnIdFUKmTDBwsz7c1yDK |
| TLSH | T12A3402159B73240ED336193C77828E31D6EFF4920684ED5D3F4AAE98E00A35A6E1D6DC |
| TrID | 44.9% (.XLSB) Excel Binary workbook (93021/2/14) 27.7% (.XLSM) Excel Microsoft Office Open XML Format document (with Macro) (57500/1/12) 16.4% (.XLSX) Excel Microsoft Office Open XML Format document (34000/1/7) 8.4% (.ZIP) Open Packaging Conventions container (17500/1/4) 1.9% (.ZIP) ZIP compressed archive (4000/1) |
| Reporter |  pr0xylife |
| Tags: | BB Qakbot Quakbot 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: 8 |
OLE dump
MalwareBazaar was able to identify 10 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| A1 | 645 bytes | PROJECT |
| A2 | 101 bytes | PROJECTwm |
| A3 | 3520 bytes | VBA/_VBA_PROJECT |
| A4 | 828 bytes | VBA/dir |
| A5 | 1690 bytes | VBA/1 |
| A6 | 990 bytes | VBA/2 |
| A7 | 990 bytes | VBA/3 |
| A8 | 990 bytes | VBA/4 |
| A9 | 994 bytes | VBA/ |
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 |
|---|---|---|
| Hex String | tWTt | 74575474 |
| IOC | Buuefafa.dll | Executable file name |
| IOC | Buuefafb.dll | Executable file name |
| 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) |
| Suspicious | Base64 Strings | Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all) |
| Suspicious | XLM macro | XLM macro found. It may contain malicious code |
Intelligence
File Origin
# of uploads :
1
# of downloads :
327
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d3788e69dd125449af3d985de93701c49cef0658bc98e3b449185f86cbee027d
Verdict:
No threats detected
Analysis date:
2022-10-06 05:13:41 UTC
Tags:
n/a
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
Searching for the window
Sending a custom TCP request
Creating a window
Сreating synchronization primitives
DNS request
Creating a process with a hidden window
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Behaviour
BlacklistAPI detected
Document image
Image:
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
macros macros-on-open regsvr32
Label:
Malicious
Suspicious Score:
9.9/10
Score Malicious:
1%
Score Benign:
%
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.
Threat name:
Document-Office.Backdoor.Quakbot
Status:
Malicious
First seen:
2022-10-05 14:35:36 UTC
File Type:
Document
Extracted files:
57
AV detection:
16 of 25 (64.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
macro xlm
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Process spawned unexpected child process
Malware Config
Dropper Extraction:
http://nafenterpriselimited.co.uk/Keeu/0.html
http://metroberrylocalmarketing.com/7z8b/0.html
http://metroberrylocalmarketing.com/7z8b/0.html
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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: | BazarLoader |
|---|---|
| Author: | Dhanunjaya |
| Description: | Yara Rule to Detect Bazar Loader |
| Rule name: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| Rule name: | informational_win_ole_protected |
|---|---|
| Author: | Jeff White (karttoon@gmail.com) @noottrak |
| Description: | Identify OLE Project protection within documents. |
| Rule name: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | meth_get_eip |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | vbaproject_bin |
|---|---|
| Author: | CD_R0M_ |
| Description: | {76 62 61 50 72 6f 6a 65 63 74 2e 62 69 6e} is hex for vbaproject.bin. Macros are often used by threat actors. Work in progress - Ran out of time |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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