MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e0bf2af1713abe4f3c276ff977a8405ad655b4cf43def74cea14b06540d5ca00. 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: 18


Intelligence 18 IOCs YARA 7 File information Comments

SHA256 hash: e0bf2af1713abe4f3c276ff977a8405ad655b4cf43def74cea14b06540d5ca00
SHA3-384 hash: 571e252d9e2203f7e1c21c58cd752005df90267d9a59b134a3d0b45ae8d9ef5550a6c39bf4c5ce9f976f34e471de6157
SHA1 hash: 1f6630f51b308b0fd0010426f38ce04a465f2804
MD5 hash: ede7e64306072bcaa307e50c0587ebe6
humanhash: emma-fix-thirteen-lactose
File name:doc20230211009999850000100.exe
Download: download sample
Signature RemcosRAT
File size:516'498 bytes
First seen:2023-02-13 07:07:13 UTC
Last seen:2023-02-20 08:44:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:3Yw9TYcmHs207r39OuFpG0Wzl7OE8g6S2i4daf7pzE55iAO:3Yw9TDJp77DBW57OEOR/UTpzv
Threatray 2'634 similar samples on MalwareBazaar
TLSH T10EB42359F711C9A3D5D383325D7B0760AFA6FC0511B9868B270C5EA8BB323E1941EF82
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 52f0e8cce8f07132 (11 x SnakeKeylogger, 2 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
212
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
doc20230211009999850000100.exe
Verdict:
Malicious activity
Analysis date:
2023-02-13 07:23:18 UTC
Tags:
rat remcos keylogger

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% directory
Creating a window
Creating a process from a recently created file
Searching for the window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Creating a file
Sending an HTTP GET 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
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos shell32.dll
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:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 806225 Sample: doc20230211009999850000100.exe Startdate: 13/02/2023 Architecture: WINDOWS Score: 100 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 5 other signatures 2->58 7 doc20230211009999850000100.exe 19 2->7         started        10 jmiqlrxkkjct.exe 1 2->10         started        13 jmiqlrxkkjct.exe 1 2->13         started        process3 file4 34 C:\Users\user\AppData\Local\...\npvngly.exe, PE32 7->34 dropped 15 npvngly.exe 1 3 7->15         started        60 Multi AV Scanner detection for dropped file 10->60 19 WerFault.exe 4 10 10->19         started        21 conhost.exe 10->21         started        23 WerFault.exe 10 13->23         started        25 conhost.exe 13->25         started        signatures5 process6 file7 38 C:\Users\user\AppData\...\jmiqlrxkkjct.exe, PE32 15->38 dropped 44 Multi AV Scanner detection for dropped file 15->44 46 Contains functionality to bypass UAC (CMSTPLUA) 15->46 48 Detected unpacking (changes PE section rights) 15->48 50 7 other signatures 15->50 27 npvngly.exe 2 17 15->27         started        32 conhost.exe 15->32         started        signatures8 process9 dnsIp10 40 report1.duckdns.org 195.3.223.117, 49701, 5890 PL-SKYTECH-ASPL Poland 27->40 42 geoplugin.net 178.237.33.50, 49702, 80 ATOM86-ASATOM86NL Netherlands 27->42 36 C:\ProgramData\remcos\logs.dat, data 27->36 dropped 62 Installs a global keyboard hook 27->62 file11 signatures12
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2023-02-10 09:05:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
27 of 39 (69.23%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
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
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
report1.duckdns.org:5890
Unpacked files
SH256 hash:
3abdcdd58271c893fa5ab83a6412fc052780d6fc86a009c248bebfdc429b88d1
MD5 hash:
02d90967ade887b58a11d42f503eb985
SHA1 hash:
80fc0caa840668bc35bed7802ab90097563a2bf5
SH256 hash:
e0bf2af1713abe4f3c276ff977a8405ad655b4cf43def74cea14b06540d5ca00
MD5 hash:
ede7e64306072bcaa307e50c0587ebe6
SHA1 hash:
1f6630f51b308b0fd0010426f38ce04a465f2804
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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

RemcosRAT

Executable exe e0bf2af1713abe4f3c276ff977a8405ad655b4cf43def74cea14b06540d5ca00

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments