MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b059ab1c0eca910c2882e26ac6f2e8ab795f0749294dfff4af528cb788d2d47. 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: 12


Intelligence 12 IOCs YARA 9 File information Comments

SHA256 hash: 1b059ab1c0eca910c2882e26ac6f2e8ab795f0749294dfff4af528cb788d2d47
SHA3-384 hash: e729ca008e90479b681928cbd6a20789c2af98859004c2aac7e2e8bd9dedf75b0859d7d61dfa6c9ac2c1fa67fb0ca3b7
SHA1 hash: 740236022aed988ba719741df042f74786f29fd9
MD5 hash: 6c06c0b2f7ea9cbe47eaf1b5631729aa
humanhash: nuts-charlie-magnesium-seventeen
File name:fatura 893454.pdf.exe
Download: download sample
Signature RemcosRAT
File size:384'327 bytes
First seen:2021-04-02 08:45:26 UTC
Last seen:2021-04-02 09:55:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ced282d9b261d1462772017fe2f6972b (127 x Formbook, 113 x GuLoader, 70 x RemcosRAT)
ssdeep 3072:0f1BDZ0kVB67Duw9AMcRolCzg2/lwObBnKmN+IeMVw3PPPlcH:09X0G5o8BperPNI
Threatray 1'977 similar samples on MalwareBazaar
TLSH F884F1D1F150C8DAED6B09F1AD2BA93024D7BE9C54A4410C569EBB1B76F3342209FE1E
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
145
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fatura 893454.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-04-02 08:50:16 UTC
Tags:
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 window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Setting a keyboard event handler
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% subdirectories
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:
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)
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-04-01 08:45:58 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 44 (25.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Remcos
Unpacked files
SH256 hash:
eda59c9f51f338ed22d269c72570aafa0b5c0d904af1cbf25dec925b1416cb78
MD5 hash:
71450b60b27f91a7e10a36d7da7dd2f4
SHA1 hash:
529da4f90fcd6438c38334549eb6cf869af03876
SH256 hash:
1b059ab1c0eca910c2882e26ac6f2e8ab795f0749294dfff4af528cb788d2d47
MD5 hash:
6c06c0b2f7ea9cbe47eaf1b5631729aa
SHA1 hash:
740236022aed988ba719741df042f74786f29fd9
Please note that we are no longer able to provide a coverage score for Virus Total.

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

RemcosRAT

Executable exe 1b059ab1c0eca910c2882e26ac6f2e8ab795f0749294dfff4af528cb788d2d47

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment

Comments