MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 28fd0fcdf202f29eaaee33d23939cd5bdd75bd68ee4c7815d4ca4dd2e6a04be5. 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
RevCodeRAT
Vendor detections: 12
| SHA256 hash: | 28fd0fcdf202f29eaaee33d23939cd5bdd75bd68ee4c7815d4ca4dd2e6a04be5 |
|---|---|
| SHA3-384 hash: | bdbc00ce9ef03e66f0335845b643dd39e1acb3b73d29407cba7a6fcd03fcfdef49f1810d2bf484c2de36a5022a1f9458 |
| SHA1 hash: | d049bc23f0604897e32ac0f76f52677a7c8ce991 |
| MD5 hash: | a0cb248c9464e9ea4f72ebc7d7807e98 |
| humanhash: | minnesota-diet-potato-jersey |
| File name: | OUTSTANDING_DEBTS.exe |
| Download: | download sample |
| Signature | RevCodeRAT |
| File size: | 1'322'252 bytes |
| First seen: | 2021-08-16 05:09:50 UTC |
| Last seen: | 2021-08-16 05:45:17 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 82004e82653b7bafbfcf73a18d8cef95 (3 x Loki, 3 x RemcosRAT, 1 x RevCodeRAT) |
| ssdeep | 24576:3qi8cepZHTsP09VGLHRteRCVdjoWfHNcL9NTYV82qU9tUk+MPAnh7wr:3EdTsPHuCPoQtgNTe82vhnPRr |
| Threatray | 80 similar samples on MalwareBazaar |
| TLSH | T1D655F100BDC4E0B2CB7538344BB6D0B55CAD1971271286DFA39C697A6F79BD2A83530E |
| Reporter |  GovCERT_CH |
| Tags: | exe RevCodeRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
161
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OUTSTANDING_DEBTS.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-16 05:10:20 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
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
WebMonitor RAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contain functionality to detect virtual machines
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to register a low level keyboard hook
Creates autostart registry keys with suspicious names
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Potentially malicious time measurement code found
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected WebMonitor RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Revcode
Status:
Malicious
First seen:
2021-08-16 01:39:39 UTC
AV detection:
12 of 46 (26.09%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 70 additional samples on MalwareBazaar
Result
Malware family:
webmonitor
Score:
10/10
Tags:
family:webmonitor backdoor infostealer persistence rat suricata
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
RevcodeRat, WebMonitorRat
WebMonitor Payload
suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup
Unpacked files
SH256 hash:
cac2b683520f786a28c3194ec14dc721d70047be3fd72bf21cf708b02ef9aa99
MD5 hash:
23be9229fda02c0c2e5e6bb57c2621a3
SHA1 hash:
f2a7f6cc237459cd8f2c951d651d2f223722173b
Detections:
win_webmonitor_w0
SH256 hash:
28fd0fcdf202f29eaaee33d23939cd5bdd75bd68ee4c7815d4ca4dd2e6a04be5
MD5 hash:
a0cb248c9464e9ea4f72ebc7d7807e98
SHA1 hash:
d049bc23f0604897e32ac0f76f52677a7c8ce991
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: | MALWARE_Win_RevCodeRAT |
|---|---|
| Author: | ditekSHen |
| Description: | Detects RevCode/WebMonitor RAT |
| Rule name: | win_webmonitor_w0 |
|---|---|
| Author: | James_inthe_box |
| Description: | Revcode RAT |
| Reference: | ee1b9659f2193896ce3469b5f90b82af3caffcba428e8524be5a9fdf391d8dd8 |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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