MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 56ab2dc4dffded9c93f356e04de0b3cf180db5eb4928a675dab901c074da69f9. 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: | 56ab2dc4dffded9c93f356e04de0b3cf180db5eb4928a675dab901c074da69f9 |
|---|---|
| SHA3-384 hash: | 18ce3a7ec2f59bdf23413ec0aaa01581c395855012ae9b84a6187e24e5f783b0e3fdba17905584ec62c05917668a6cd0 |
| SHA1 hash: | 3bc0b1c63f4433b34c2b41132550f21723f3232c |
| MD5 hash: | 4a217e9f161bceb56c56d25fedf2970e |
| humanhash: | five-april-wolfram-nineteen |
| File name: | Remittanceslip.pdf.exe |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 1'020'337 bytes |
| First seen: | 2021-05-17 07:30:13 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat) |
| ssdeep | 24576:BAOcZpJBXZmAI6WnieSQR5K9YfDXHn15B2so0UBXRP:bgpUTieSg5KInvB2x0UPP |
| Threatray | 1'868 similar samples on MalwareBazaar |
| TLSH | B5251202F7D288B2D57309315A35A711BE7C7D306F38DA6FA7E0496E9D34490A624BB3 |
| Reporter |  abuse_ch |
| Tags: | exe RAT RemcosRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 185.19.85.139:2404 | https://threatfox.abuse.ch/ioc/43888/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
155
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Remittanceslip.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-17 07:32:42 UTC
Tags:
trojan rat remcos keylogger
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
Creating a window
Searching for the window
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a file
Adding an access-denied ACE
DNS request
Creating a file in the %AppData% subdirectories
Sending a UDP request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Sending a TCP request to an infection source
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.
Result
Threat name:
Remcos
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Drops PE files with a suspicious file extension
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Sigma detected: WScript or CScript Dropper
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Detection:
remcos
Threat name:
Win32.Backdoor.NanoCore
Status:
Malicious
First seen:
2021-05-17 07:31:08 UTC
AV detection:
22 of 47 (46.81%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'858 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:nanocore family:remcos keylogger persistence rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
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
Executes dropped EXE
NanoCore
Remcos
Malware Config
C2 Extraction:
shahzad73.casacam.net:2404
shahzad73.ddns.net:2404
shahzad73.ddns.net:2404
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: | ach_RemcosRAT |
|---|---|
| Author: | abuse.ch |
| Rule name: | Chrome_stealer_bin_mem |
|---|---|
| Author: | James_inthe_box |
| Description: | Chrome in files like avemaria |
| 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: | Parallax |
|---|---|
| Author: | @bartblaze |
| Description: | Identifies Parallax RAT. |
| 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: | 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.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0029.002] Cryptography Micro-objective::SHA1::Cryptographic Hash
1) [C0029.003] Cryptography Micro-objective::SHA256::Cryptographic Hash
2) [C0031.001] Cryptography Micro-objective::AES::Decrypt Data
3) [C0032.001] Data Micro-objective::CRC32::Checksum
4) [C0026.002] Data Micro-objective::XOR::Encode Data
5) [C0030.001] Data Micro-objective::MurmurHash::Non-Cryptographic Hash
6) [F0004.007] Defense Evasion::Bypass Windows File Protection
8) [C0046] File System Micro-objective::Create Directory
9) [C0048] File System Micro-objective::Delete Directory
10) [C0047] File System Micro-objective::Delete File
11) [C0049] File System Micro-objective::Get File Attributes
12) [C0051] File System Micro-objective::Read File
13) [C0050] File System Micro-objective::Set File Attributes
14) [C0052] File System Micro-objective::Writes File
15) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
16) [C0036.004] Operating System Micro-objective::Create Registry Key::Registry
17) [C0036.003] Operating System Micro-objective::Open Registry Key::Registry
18) [C0036.006] Operating System Micro-objective::Query Registry Value::Registry
19) [C0036.001] Operating System Micro-objective::Set Registry Key::Registry
20) [C0040] Process Micro-objective::Allocate Thread Local Storage
21) [C0017] Process Micro-objective::Create Process
22) [C0038] Process Micro-objective::Create Thread
23) [C0041] Process Micro-objective::Set Thread Local Storage Value
24) [C0018] Process Micro-objective::Terminate Process