MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments
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SHA256 hash: 3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b
SHA3-384 hash: 7abb2d3392ce545964a005a380d8ac72ba9017fc0048a092f5ea81a234534ba889a53641cd0ddf0c9b3f9101350af7e6
SHA1 hash: faa219d0ae32fc00960059b6994b67dea15613e7
MD5 hash: 5bebeb46c3cd437af15adefe96d73fdc
humanhash: purple-indigo-helium-nuts
File name:5BEBEB46C3CD437AF15ADEFE96D73FDC.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:879'616 bytes
First seen:2023-07-25 14:55:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5a228192c4ccf136d4c97f1d42c75f4b (2 x RemcosRAT, 1 x ModiLoader)
ssdeep 24576:qgVL/HkvOe7zm1OHMVy500RNJn135sP54J06:5lMGaNbbJ15c4+
Threatray 1 similar samples on MalwareBazaar
TLSH T12015BE22B6D08533D16F3D354D1ADB6A60257D201D2CF5873AD93E8CEB763827828E97
TrID 30.5% (.SCR) Windows screen saver (13097/50/3)
24.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win32 Executable (generic) (4505/5/1)
4.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 80ace0c4e4d09000 (5 x Formbook, 4 x ModiLoader, 3 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
194.180.48.209:32676

Intelligence

File Origin
# of uploads :
1
# of downloads :
274
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
5BEBEB46C3CD437AF15ADEFE96D73FDC.exe
Verdict:
Malicious activity
Analysis date:
2023-07-25 15:06:00 UTC
Tags:
dbatloader rat remcos keylogger
Link:
https://app.any.run/tasks/2c3a3641-777b-419b-afd2-b577cd39848a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/432394/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.68259212.2736.10491.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Searching for the window
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b
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:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c0ff12fc-f9f9-4959-a65f-8835461dede5
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1279344
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Creates a thread in another existing process (thread injection)
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Injects a PE file into a foreign processes
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
Sample uses process hollowing technique
Sigma detected: Remcos
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1279344 Sample: uUex2ZIKEm.exe Startdate: 25/07/2023 Architecture: WINDOWS Score: 100 94 Snort IDS alert for network traffic 2->94 96 Found malware configuration 2->96 98 Malicious sample detected (through community Yara rule) 2->98 100 8 other signatures 2->100 10 uUex2ZIKEm.exe 1 7 2->10         started        15 Nvlbrxrr.bat 2->15         started        17 Nvlbrxrr.bat 2->17         started        process3 dnsIp4 76 web.fe.1drv.com 10->76 78 onedrive.live.com 10->78 84 2 other IPs or domains 10->84 62 C:\Users\Public\Libraries\netutils.dll, PE32+ 10->62 dropped 64 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 10->64 dropped 66 C:\Users\Public\Libraries66vlbrxrr.bat, PE32 10->66 dropped 114 Writes to foreign memory regions 10->114 116 Allocates memory in foreign processes 10->116 118 Creates a thread in another existing process (thread injection) 10->118 120 Injects a PE file into a foreign processes 10->120 19 logagent.exe 3 16 10->19         started        23 cmd.exe 3 10->23         started        80 web.fe.1drv.com 15->80 86 3 other IPs or domains 15->86 122 Antivirus detection for dropped file 15->122 124 Multi AV Scanner detection for dropped file 15->124 25 logagent.exe 15->25         started        82 web.fe.1drv.com 17->82 88 3 other IPs or domains 17->88 27 logagent.exe 17->27         started        file5 signatures6 process7 dnsIp8 68 www.akbeyaztckstil.com 194.180.48.209, 32676, 49694, 49695 LVLT-10753US Germany 19->68 70 geoplugin.net 178.237.33.50, 49696, 80 ATOM86-ASATOM86NL Netherlands 19->70 104 Maps a DLL or memory area into another process 19->104 106 Sample uses process hollowing technique 19->106 29 logagent.exe 19->29         started        32 logagent.exe 19->32         started        34 logagent.exe 19->34         started        44 25 other processes 19->44 108 Uses ping.exe to sleep 23->108 110 Drops executables to the windows directory (C:\Windows) and starts them 23->110 112 Uses ping.exe to check the status of other devices and networks 23->112 36 easinvoker.exe 23->36         started        38 PING.EXE 1 23->38         started        41 xcopy.exe 2 23->41         started        46 6 other processes 23->46 signatures9 process10 dnsIp11 126 Tries to steal Instant Messenger accounts or passwords 29->126 128 Tries to steal Mail credentials (via file / registry access) 29->128 48 cmd.exe 1 36->48         started        72 127.0.0.1 unknown unknown 38->72 74 192.168.2.1 unknown unknown 38->74 58 C:\Windows \System32\easinvoker.exe, PE32+ 41->58 dropped 130 Tries to harvest and steal browser information (history, passwords, etc) 44->130 60 C:\Windows \System32\netutils.dll, PE32+ 46->60 dropped file12 signatures13 process14 signatures15 90 Suspicious powershell command line found 48->90 92 Adds a directory exclusion to Windows Defender 48->92 51 powershell.exe 19 48->51         started        54 conhost.exe 48->54         started        process16 signatures17 102 DLL side loading technique detected 51->102 56 conhost.exe 51->56         started        process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-19 11:39:55 UTC
File Type:
PE (Exe)
Extracted files:
52
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hi7surddnjoywtufplbmlsfsvatc5zlxx5nronknlel3ya555jfq._file
Verdict:
malicious
Similar samples:
1acecc1f245ab45378418be82fc87c3742529ded1d291c7dd08c04136b6be1fb
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:trukeynewlogs collection persistence rat trojan
Link:
https://tria.ge/reports/230725-sa2cwadc58/
Behaviour
Enumerates system info in registry
Runs ping.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Suspicious use of NtCreateProcessOtherParentProcess
Malware Config
C2 Extraction:
www.akbeyaztckstil.com:32676
Unpacked files
SH256 hash:
446c6468b483ae2a94bcd691e4fa423ca83f70ec3eb7e3a3cc5d4cd793ca940f
MD5 hash:
c1d610207bb99d190b202293417f1bb9
SHA1 hash:
5d2ad595d9a81f065c925d66c17b027f347fa112
Link:
https://www.unpac.me/results/a8432521-553a-47bb-ad94-6f6735d4c815/
SH256 hash:
3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b
MD5 hash:
5bebeb46c3cd437af15adefe96d73fdc
SHA1 hash:
faa219d0ae32fc00960059b6994b67dea15613e7
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/a8432521-553a-47bb-ad94-6f6735d4c815/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3a3f2a44636a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/3a3f2a44636a5d8b4e857ac2c5c8b2a8262ee577bf5b17354d5917bc03bdea4b

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:CMD_Ping_Localhost
Create hunting rule
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Typical_Malware_String_Transforms
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Create hunting rule
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/432394/

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