MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 efb8a01422e4878a75c28f13b9607184285834d20e5301c870b373db744d7c0b. 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: 9
| SHA256 hash: | efb8a01422e4878a75c28f13b9607184285834d20e5301c870b373db744d7c0b |
|---|---|
| SHA3-384 hash: | a70d507dfe79295740763fc3f90c8013c9823967f33f23a19f979bcfe090a4f1bfc2bec097e191f7620b2c30d0d324a3 |
| SHA1 hash: | c83c19fb58b79f7297c138a9a4af00923c5940a0 |
| MD5 hash: | 1a1fcdd8d3bc67b2513d2bec6ada5b8b |
| humanhash: | cola-april-alanine-charlie |
| File name: | AD Order Confirmation-7645,pdf.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 674'304 bytes |
| First seen: | 2021-08-27 07:44:47 UTC |
| Last seen: | 2021-08-27 09:26:21 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7f96272d7334ea5c5b0f297a4213e926 (2 x RemcosRAT, 1 x Neshta) |
| ssdeep | 12288:R+i5kuKF/CFs3c7WaNipAfofysLefr8jdv:cEKF/P3c7rMAfo6s6frg9 |
| Threatray | 503 similar samples on MalwareBazaar |
| TLSH | T14FE44BB675500D3DD52B1F7AED8FBA684525BD013C10FE8BAED43D4A16BC2A4321A387 |
| dhash icon | 4835f31886713986 (2 x RemcosRAT) |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
Intelligence
File Origin
# of uploads :
2
# of downloads :
140
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AD Order Confirmation-7645,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-27 07:45:27 UTC
Tags:
rat remcos
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
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Connection attempt to an infection source
Creating a window
Unauthorized injection to a recently created process
Sending a UDP request
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Unauthorized injection to a system process
Malware family:
Generic Malware
Verdict:
Malicious
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
56 / 100
Signature
Contains functionality to inject threads in other processes
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-08-27 07:45:06 UTC
AV detection:
11 of 37 (29.73%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 493 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:new era persistence rat
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
thankyoulord4real.ddns.net:3030
Unpacked files
SH256 hash:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
SH256 hash:
efb8a01422e4878a75c28f13b9607184285834d20e5301c870b373db744d7c0b
MD5 hash:
1a1fcdd8d3bc67b2513d2bec6ada5b8b
SHA1 hash:
c83c19fb58b79f7297c138a9a4af00923c5940a0
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.20
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: | ach_RemcosRAT |
|---|---|
| Author: | abuse.ch |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | Remcos |
|---|---|
| Author: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | remcos_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | REMCOS_RAT_variants |
|---|
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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