MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 62f4359aef9d0d604c03c099da375debd0d98f20cf4f673a5a32bd64989076ca. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments

SHA256 hash: 62f4359aef9d0d604c03c099da375debd0d98f20cf4f673a5a32bd64989076ca
SHA3-384 hash: 2ef37df19085f287cf47e9a116c0d88911176a7b3b54734d3398c85f6349aa5ff77c27a599ad729e14e6c19f60634434
SHA1 hash: 14528306a82b01074ee5016f5551a400982fedd6
MD5 hash: c912d22b1c9eb3890e949b0608f2a166
humanhash: chicken-fourteen-lithium-angel
File name:hesaphareketi-01.PDF.exe
Download: download sample
Signature RemcosRAT
File size:701'785 bytes
First seen:2023-01-30 10:31:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 12288:uY6q4PwjRTK1ihk62VTfpGJ4h0V5hqjB9WggB9u6tble+2dtMax6yUdJ:uY6hPwjRYkN2xfrOq6ggB9u6tMtMGUv
Threatray 2'555 similar samples on MalwareBazaar
TLSH T141E402C1FF8096ABD431963114BBCB366733AC215B5A970772C07B277D733926A2325A
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 61e4e0cccccce071 (1 x Loki, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe geo RAT RemcosRAT TUR

Intelligence


File Origin
# of uploads :
1
# of downloads :
205
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
hesaphareketi-01.PDF.exe
Verdict:
Malicious activity
Analysis date:
2023-01-30 10:33:31 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
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
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:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
overlay packed 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)
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for sample
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 an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 794222 Sample: hesaphareketi-01.PDF.exe Startdate: 30/01/2023 Architecture: WINDOWS Score: 100 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 8 other signatures 2->55 7 hesaphareketi-01.PDF.exe 19 2->7         started        10 nnkquuuncf.exe 2->10         started        13 nnkquuuncf.exe 2->13         started        process3 file4 29 C:\Users\user\AppData\Local\Temp\hnwyk.exe, PE32 7->29 dropped 15 hnwyk.exe 1 2 7->15         started        57 Multi AV Scanner detection for dropped file 10->57 19 WerFault.exe 4 10 10->19         started        22 WerFault.exe 10 13->22         started        signatures5 process6 dnsIp7 33 C:\Users\user\AppData\...\nnkquuuncf.exe, PE32 15->33 dropped 41 Multi AV Scanner detection for dropped file 15->41 43 Contains functionality to bypass UAC (CMSTPLUA) 15->43 45 Detected unpacking (changes PE section rights) 15->45 47 7 other signatures 15->47 24 hnwyk.exe 2 17 15->24         started        35 192.168.2.1 unknown unknown 19->35 file8 signatures9 process10 dnsIp11 37 report1.duckdns.org 195.3.223.117, 49691, 5890 PL-SKYTECH-ASPL Poland 24->37 39 geoplugin.net 178.237.33.50, 49692, 80 ATOM86-ASATOM86NL Netherlands 24->39 31 C:\ProgramData\remcos\logs.dat, data 24->31 dropped 59 Installs a global keyboard hook 24->59 file12 signatures13
Threat name:
Win32.Trojan.Nemesis
Status:
Malicious
First seen:
2023-01-30 08:50:16 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 39 (43.59%)
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
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
report1.duckdns.org:5890
Unpacked files
SH256 hash:
f83d65dff98e318d3ad8a846bcc0dd078ffaf0e5350d32b041989e63dbbf2c32
MD5 hash:
22e4a3a2abe9eff290c9ca2ce4190017
SHA1 hash:
3903784a4a22fb946322e9b47a50a3ac6072f201
Detections:
Remcos win_remcos_auto
SH256 hash:
cbe84b1d3d6ec1067318f058e6b367400f1471c8b8b456db7af498c8426ec20f
MD5 hash:
0449a3bde4f22039d5ebef9a650b0a33
SHA1 hash:
68cc4f8ea5acaa8fc6a46a0018018e029499d932
SH256 hash:
62f4359aef9d0d604c03c099da375debd0d98f20cf4f673a5a32bd64989076ca
MD5 hash:
c912d22b1c9eb3890e949b0608f2a166
SHA1 hash:
14528306a82b01074ee5016f5551a400982fedd6
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.

Comments