MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249. 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: 15


Maldoc score: 4


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249
SHA3-384 hash: 9f48a2ca689c55a9daf80f1c103194633a27fa3a0e9a07de01f70c2fe6b29a782d43b0208eaa305f871b2396d4f33dcc
SHA1 hash: 971528c0b9b42d066dc00e50b8fd21182db027f4
MD5 hash: 3f4f9be9cc26a7d3ea53f5752484a16e
humanhash: burger-quiet-venus-virginia
File name:PAYMENT ADVICE.xls
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:411'648 bytes
First seen:2024-06-26 08:49:34 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:sTujvjx5qdJzDxBu1SiU6ZTZ7d6XtBGax9foDlSxib43gE7/tuQC2m5IBtH:sCbLQ3n/sT5dstBG89AExiE3gO1k5I
TLSH T12D94233077C1CB53D1038A748AD5F3C65409FC29AF1A8F13316973AE8D76786AA63B21
TrID 46.5% (.XLS) Microsoft Excel sheet (alternate) (56500/1/4)
26.7% (.XLS) Microsoft Excel sheet (32500/1/3)
20.1% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
6.5% (.) Generic OLE2 / Multistream Compound (8000/1)
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: 4
OLE dump

MalwareBazaar was able to identify 15 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
499 bytesMBD001F023F/CompObj
519572 bytesMBD001F023F/Package
6762 bytesMBD001F0240/Ole
7373841 bytesWorkbook
8523 bytes_VBA_PROJECT_CUR/PROJECT
9104 bytes_VBA_PROJECT_CUR/PROJECTwm
10977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
11977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
12977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
13985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
142644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
15553 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:

TypeKeywordDescription
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
379
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249.xls
Verdict:
No threats detected
Analysis date:
2024-06-26 08:58:41 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9e99df6f-0c32-457f-9613-2185106eb9a2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
TwinWave.EvilDoc.93TilInfinity.20240412.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=667bd67e7ca575ea1996d64dwin10vpnfull_triage
Tags:
Generic Infostealer Network Office Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a window
DNS request
Sending an HTTP GET request
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Creating a file
Connection attempt
Sending a custom TCP request
Delayed reading of the file
Creating a process with a hidden window
Possible injection to a system process
Connection attempt by exploiting the app vulnerability
Sending a custom TCP request by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Using obfuscated Powershell scripts
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249/results/dashboard
Payload URLs
URL
File name
http://lnkz.at/FG63g
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249
Label:
Benign
Suspicious Score:
3.6/10
Score Malicious:
36%
Score Benign:
64%
Link:
https://www.malware.ai/gui/files/?id=0f1fdb90-c0e5-4883-a725-820580c62f7d
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1462905
Signature
AI detected suspicious Excel or Word document
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Microsoft Office drops suspicious files
Microsoft Office launches external ms-search protocol handler (WebDAV)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Obfuscated command line found
Office drops RTF file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Office viewer loads remote template
Searches for Windows Mail specific files
Shellcode detected
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: Equation Editor Network Connection
Sigma detected: File Dropped By EQNEDT32EXE
Sigma detected: HackTool - CrackMapExec PowerShell Obfuscation
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Remcos
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: Suspicious Microsoft Office Child Process
Sigma detected: WScript or CScript Dropper
Snort IDS alert for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1462905 Sample: PAYMENT ADVICE.xls Startdate: 26/06/2024 Architecture: WINDOWS Score: 100 56 lnkz.at 2->56 84 Snort IDS alert for network traffic 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Found malware configuration 2->88 90 29 other signatures 2->90 10 EXCEL.EXE 59 38 2->10         started        signatures3 process4 dnsIp5 60 93.123.12.248, 49164, 49171, 49172 NETERRA-ASBG Bulgaria 10->60 62 lnkz.at 104.21.18.65, 443, 49162, 49163 CLOUDFLARENETUS United States 10->62 50 C:\Users\user\...\PAYMENT ADVICE.xls (copy), Composite 10->50 dropped 52 C:\Users\user\AppData\...\ae.e.e.e.eee[1].doc, Rich 10->52 dropped 14 wscript.exe 1 10->14         started        18 WINWORD.EXE 339 34 10->18         started        file6 process7 dnsIp8 70 66.70.160.254, 49173, 80 OVHFR Canada 14->70 112 Suspicious powershell command line found 14->112 114 Wscript starts Powershell (via cmd or directly) 14->114 116 Obfuscated command line found 14->116 124 2 other signatures 14->124 21 powershell.exe 12 5 14->21         started        72 lnkz.at 18->72 74 172.67.180.182, 443, 49165, 49170 CLOUDFLARENETUS United States 18->74 40 C:\Users\user\AppData\Roaming\...\lnkz.at.url, MS 18->40 dropped 42 C:\Users\user\AppData\Roaming\...\FG63g.url, MS 18->42 dropped 44 ~WRF{E8AF4B0C-15A3...E-5B232B7C4A0F}.tmp, Composite 18->44 dropped 46 C:\Users\user\AppData\Local\...\D541DE7B.doc, Rich 18->46 dropped 118 Microsoft Office launches external ms-search protocol handler (WebDAV) 18->118 120 Office viewer loads remote template 18->120 122 Microsoft Office drops suspicious files 18->122 25 EQNEDT32.EXE 12 18->25         started        file9 signatures10 process11 dnsIp12 58 ia803402.us.archive.org 207.241.232.192, 49174, 80 INTERNET-ARCHIVEUS United States 21->58 92 Writes to foreign memory regions 21->92 94 Suspicious execution chain found 21->94 96 Injects a PE file into a foreign processes 21->96 28 RegAsm.exe 3 13 21->28         started        48 C:\...\lowersloverainingbeautifulday.vBS, Unicode 25->48 dropped 98 Office equation editor establishes network connection 25->98 100 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 25->100 file13 signatures14 process15 dnsIp16 64 mever.duckdns.org 28->64 66 mever.duckdns.org 103.186.116.157, 38157, 49176, 49177 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 28->66 68 geoplugin.net 178.237.33.50, 49178, 80 ATOM86-ASATOM86NL Netherlands 28->68 54 C:\ProgramData\lgs\logs.dat, data 28->54 dropped 102 Contains functionality to bypass UAC (CMSTPLUA) 28->102 104 Detected Remcos RAT 28->104 106 Tries to steal Mail credentials (via file registry) 28->106 110 7 other signatures 28->110 33 RegAsm.exe 1 28->33         started        36 RegAsm.exe 1 28->36         started        38 RegAsm.exe 11 28->38         started        file17 108 Uses dynamic DNS services 64->108 signatures18 process19 signatures20 76 Tries to steal Instant Messenger accounts or passwords 33->76 78 Tries to steal Mail credentials (via file / registry access) 33->78 80 Searches for Windows Mail specific files 33->80 82 Tries to harvest and steal browser information (history, passwords, etc) 36->82
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249/
Threat name:
Document-Excel.Exploit.CVE-2017-0199
Create hunting rule
Status:
Malicious
First seen:
2024-06-26 08:50:06 UTC
File Type:
Document
Extracted files:
25
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4m364dxqccugbyi3sfq55f5fkep7aq4bwz3hw7k2zzqk3735mjeq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Link:
https://tria.ge/reports/240626-krldzswenc/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Script User-Agent
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Office loads VBA resources, possible macro or embedded object present
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Drops file in System32 directory
Abuses OpenXML format to download file from external location
Blocklisted process makes network request
Malware Config
Dropper Extraction:
http://ia803402.us.archive.org/17/items/new_image_20240625_2128/new_image.jpg
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/17ba4428-2ea0-4c92-82c3-d32125efd2fb
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e337ee0ef010/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/e337ee0ef010a860e11b9161de97a5511ff04381b6767b7d5ace60adff7d6249

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
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:maldoc_OLE_file_magic_number
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:office_document_vba
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Office document with embedded VBA
Reference:https://github.com/jipegit/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments