MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a5b12e2ac3b1a01783989acfe7e00c29dd53fa953f88963b9207b38a3f5b4547. 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: 11
| SHA256 hash: | a5b12e2ac3b1a01783989acfe7e00c29dd53fa953f88963b9207b38a3f5b4547 |
|---|---|
| SHA3-384 hash: | 553624552325ab91da2236700a414034cbf14a185400d8e34add394c530fb3c725797a19a7d267e2cba352a4bb296587 |
| SHA1 hash: | fbc3540cd6691cae2ab41be9e8b5c7468d0b5ec8 |
| MD5 hash: | 5d29d4e6ff89e9a72039d591487069a5 |
| humanhash: | stream-juliet-xray-skylark |
| File name: | REP0O90900080.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 378'089 bytes |
| First seen: | 2021-03-26 06:45:29 UTC |
| Last seen: | 2021-03-26 08:38:14 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla) |
| ssdeep | 3072:dTs3BxJNmJrolCzg2/lwPbNMMzPhKiPMRq1L+b:dAPSoDbuMzPhKiURq1L2 |
| Threatray | 1'693 similar samples on MalwareBazaar |
| TLSH | 0E84F2D1F19088DAED6B09F1BD2BA5302497BE9C54A4410C56ADBB1B76F3342309FE1E |
| Reporter |  cocaman |
| Tags: | exe RemcosRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 104.223.106.236:8780 | https://threatfox.abuse.ch/ioc/5447/ |
Intelligence
File Origin
# of uploads :
2
# of downloads :
165
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
REP0O90900080.exe
Verdict:
Malicious activity
Analysis date:
2021-03-26 06:49:10 UTC
Tags:
installer trojan rat remcos
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Setting a keyboard event handler
Sending a custom TCP request
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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:
REMCOS
Verdict:
Malicious
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
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
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Installs a global keyboard hook
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2021-03-26 03:22:33 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
5 of 48 (10.42%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'683 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Remcos
Unpacked files
SH256 hash:
7ab076a04055694f5da80379bb01e19235844969d674327fd1dd117f67c1e8bb
MD5 hash:
95c8f79054b4c688c8316b6d84b0e7a3
SHA1 hash:
65346934ff3b2d65c48064fcc537c14ae62cad04
SH256 hash:
a5b12e2ac3b1a01783989acfe7e00c29dd53fa953f88963b9207b38a3f5b4547
MD5 hash:
5d29d4e6ff89e9a72039d591487069a5
SHA1 hash:
fbc3540cd6691cae2ab41be9e8b5c7468d0b5ec8
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: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| Rule name: | INDICATOR_EXE_Packed_MPress |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables built or packed with MPress PE compressor |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer |
|---|---|
| Author: | ditekSHen |
| Description: | detects Windows exceutables potentially bypassing UAC using eventvwr.exe |
| Rule name: | Keylog_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Contains Keylog |
| Rule name: | Remcos |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Remcos in memory |
| Rule name: | remcos_rat |
|---|---|
| Author: | jeFF0Falltrades |
| Rule name: | REMCOS_RAT_variants |
|---|
| Rule name: | suspicious_packer_section |
|---|---|
| Author: | @j0sm1 |
| Description: | The packer/protector section names/keywords |
| Reference: | http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/ |
| Rule name: | win_remcos_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Other
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