MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 77d1ccd3b57dea0ff34ee568a1027cd8ea74f14f3580acbc0aba8587f96f7a6c. 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
RemcosRAT
Vendor detections: 14
Maldoc score: 9
| SHA256 hash: | 77d1ccd3b57dea0ff34ee568a1027cd8ea74f14f3580acbc0aba8587f96f7a6c |
|---|---|
| SHA3-384 hash: | dbe80c79af2a1d5bb749d0133e06b9fb1c295a5e364046cf3eff8fd499dda5a28a8f1ab4b6fbd3707743ab28eacc1418 |
| SHA1 hash: | c90ceef8e350611afb26eddbe46061352ccd7646 |
| MD5 hash: | ccdb61148960b94f52b40592f03af119 |
| humanhash: | mountain-earth-maryland-delta |
| File name: | PO003302204082026_Product_List_Request_for_Quotation.xls |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 921'088 bytes |
| First seen: | 2026-08-06 14:21:31 UTC |
| Last seen: | Never |
| File type: |  xls |
| MIME type: | application/vnd.ms-excel |
| ssdeep | 24576:CKpt1QRT/64rm4u1UiVN37YWczoyf9KDYgWikRMHRU2/Z:CKptmB6au19v37YWczok2YgWEHGQ |
| TLSH | T178151211FF805476C9825B390FA3A6D1D90CBC5B9E6A0F0A27897339783B7F4D962C16 |
| TrID | 34.9% (.XLS) Microsoft Excel sheet (32500/1/3) 30.1% (.XLS) Microsoft Excel sheet (alternate) (28000/1/3) 26.3% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2) 8.6% (.) Generic OLE2 / Multistream Compound (8000/1) |
| Magika | xls |
| Reporter |  abuse_ch |
| Tags: | cve-2017-0199 RemcosRAT xls |
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: 9 |
| Application name is Microsoft Excel |
| File Format is MS Excel 97-2003 |
| Container Format is OLE |
| Office document is in encrypted |
| Office document contains VBA Macros |
OLE dump
MalwareBazaar was able to identify 22 sections in this file using oledump:
| Section ID | Section size | Section name |
|---|---|---|
| 1 | 114 bytes | CompObj |
| 2 | 244 bytes | DocumentSummaryInformation |
| 3 | 200 bytes | SummaryInformation |
| 4 | 114 bytes | MBD003B86FE/CompObj |
| 5 | 220 bytes | MBD003B86FE/DocumentSummaryInformation |
| 6 | 132 bytes | MBD003B86FE/SummaryInformation |
| 7 | 94 bytes | MBD003B86FE/MBD00233248/CompObj |
| 8 | 20 bytes | MBD003B86FE/MBD00233248/Ole |
| 9 | 245706 bytes | MBD003B86FE/MBD00233248/CONTENTS |
| 10 | 71663 bytes | MBD003B86FE/Workbook |
| 11 | 99 bytes | MBD003B86FF/CompObj |
| 12 | 220090 bytes | MBD003B86FF/Package |
| 13 | 1192 bytes | MBD003B8700/Ole |
| 14 | 358813 bytes | Workbook |
| 15 | 527 bytes | _VBA_PROJECT_CUR/PROJECT |
| 16 | 104 bytes | _VBA_PROJECT_CUR/PROJECTwm |
| 17 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet1 |
| 18 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet2 |
| 19 | 977 bytes | _VBA_PROJECT_CUR/VBA/Sheet3 |
| 20 | 985 bytes | _VBA_PROJECT_CUR/VBA/ThisWorkbook |
| 21 | 2644 bytes | _VBA_PROJECT_CUR/VBA/_VBA_PROJECT |
| 22 | 553 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 |
|---|---|---|
| Suspicious | Hex Strings | Hex-encoded strings were detected, may beused to obfuscate strings (option --decode tosee all) |
Intelligence
File Origin
# of uploads :
1
# of downloads :
139
Origin country :
SEVendor Threat Intelligence
Malware configuration found for:
MSO
Details
Malware family:
n/a
ID:
1
File name:
xls
Verdict:
No threats detected
Analysis date:
2026-08-06 14:45:13 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Connection attempt by exploiting the app vulnerability
Sending an HTTP GET request
Sending a custom TCP request by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Behaviour
SuspiciousRTF detected
Document image
Image:
Verdict:
Unknown
Threat level:
0/10
Confidence:
100%
Tags:
evasive macros
Verdict:
Malicious
Labled as:
CVE-2017-0199
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Verdict:
Malicious
File Type:
xls
First seen:
2026-08-06T06:07:00Z UTC
Last seen:
2026-08-08T06:30:00Z UTC
Hits:
~1000
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
56 / 100
Signature
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Verdict:
Malware
YARA:
6 match(es)
Tags:
Moderately Suspicious Document Office Document Remote Template Injection T1221
Detection:
remcos
Threat name:
Win32.Exploit.CVE-2017-0199
Status:
Suspicious
First seen:
2026-08-06 13:00:22 UTC
File Type:
Document
Extracted files:
91
AV detection:
10 of 24 (41.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
10/10
Tags:
persistence ransomware
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Process spawned unexpected child process
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: | informational_win_ole_protected |
|---|---|
| Author: | Jeff White (karttoon@gmail.com) @noottrak |
| Description: | Identify OLE Project protection within documents. |
| Rule name: | XLS_STRINGS |
|---|---|
| Author: | somedieyoungZZ |
| Description: | Detect Strings targeting Bangladesh |
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.