MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea. 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 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea
SHA3-384 hash: 7ff3e4f8f8f1498c0bbffa0583667105d0d17dc0064f62970f9c300628422df08a0a98873dc4fc1085e433461f9d1ac6
SHA1 hash: c17ccb1e848125dc6ac5afebe008c0a36d1d3b7b
MD5 hash: 0764105d28b8e3faae82e41a48f29577
humanhash: diet-black-pluto-hawaii
File name:0764105d28b8e3faae82e41a48f29577
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:728'576 bytes
First seen:2021-09-16 01:22:50 UTC
Last seen:2021-09-16 02:08:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:d63tCSzSwnbb16enOYd6kxUGTSAPh4/2q4014vt0ffg:UxNnbJ6XYQ+B7S/8014vGffg
Threatray 1'053 similar samples on MalwareBazaar
TLSH T1D0F4E46C3FD15F72ED5ED13189420AC7BB660B136280E996D7DB15CA8B8F0662DC7C88
dhash icon d48a9a9ab2f4a1a2 (3 x a310Logger, 2 x SpyEx, 1 x FormBook)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
129
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0764105d28b8e3faae82e41a48f29577
Verdict:
Malicious activity
Analysis date:
2021-09-16 01:26:10 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/aa0ad39f-7983-4895-86dd-835e40d53ec4

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/188290/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.16191.17457.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61751e799a5a1e91c5d20406/reports/62fb5b9b-5dce-4c2d-a4c4-21d1af7644f2/overview
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/431fd0e7-6e0c-49cb-b48f-9732d5fff385
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/851781
Signature
Binary or sample is protected by dotNetProtector
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Tries to delay execution (extensive OutputDebugStringW loop)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 484208 Sample: AQF4lDlg2M Startdate: 16/09/2021 Architecture: WINDOWS Score: 100 90 Malicious sample detected (through community Yara rule) 2->90 92 Multi AV Scanner detection for submitted file 2->92 94 Detected Remcos RAT 2->94 96 5 other signatures 2->96 11 AQF4lDlg2M.exe 4 2->11         started        14 browser.exe 3 2->14         started        16 remcos.exe 2->16         started        18 remcos.exe 2->18         started        process3 signatures4 100 Contains functionality to steal Chrome passwords or cookies 11->100 102 Contains functionality to inject code into remote processes 11->102 104 Tries to delay execution (extensive OutputDebugStringW loop) 11->104 112 2 other signatures 11->112 20 AQF4lDlg2M.exe 4 5 11->20         started        23 cmd.exe 3 11->23         started        25 cmd.exe 1 11->25         started        106 Machine Learning detection for dropped file 14->106 108 Injects a PE file into a foreign processes 14->108 110 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 14->110 28 cmd.exe 14->28         started        34 2 other processes 14->34 30 cmd.exe 16->30         started        36 2 other processes 16->36 32 cmd.exe 18->32         started        38 2 other processes 18->38 process5 file6 78 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->78 dropped 80 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->80 dropped 82 C:\Users\user\AppData\Local\...\install.vbs, data 20->82 dropped 40 wscript.exe 1 20->40         started        84 C:\Users\user\AppData\Roaming\...\browser.exe, PE32 23->84 dropped 86 C:\Users\user\...\browser.exe:Zone.Identifier, ASCII 23->86 dropped 42 conhost.exe 23->42         started        98 Uses schtasks.exe or at.exe to add and modify task schedules 25->98 50 2 other processes 25->50 52 2 other processes 28->52 54 2 other processes 30->54 56 2 other processes 32->56 44 conhost.exe 34->44         started        46 conhost.exe 36->46         started        48 conhost.exe 38->48         started        signatures7 process8 process9 58 cmd.exe 1 40->58         started        process10 60 remcos.exe 3 58->60         started        63 conhost.exe 58->63         started        signatures11 114 Machine Learning detection for dropped file 60->114 116 Tries to delay execution (extensive OutputDebugStringW loop) 60->116 118 Injects a PE file into a foreign processes 60->118 65 cmd.exe 60->65         started        67 remcos.exe 60->67         started        70 cmd.exe 60->70         started        process12 dnsIp13 72 conhost.exe 65->72         started        74 schtasks.exe 65->74         started        88 79.134.225.77, 2050, 49763, 49766 FINK-TELECOM-SERVICESCH Switzerland 67->88 76 conhost.exe 70->76         started        process14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-16 01:23:20 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
38da1c4dabd3275256a93bc7321267979802c35ec2cbd1ecef7a5ad18a61afad
RemcosRAT
41ab72f9ce1e64f569029d8b3f8c2fdf680fb75113b8d7451bc8d988cd5f6bd2
RemcosRAT
5000f900d0d52fb1b6634d0437711ab10c9184d080c852f17b2fb114a35446a8
RemcosRAT
5191e0986f9d1886402809cdee8aa3b8f50bac0c36813efc602e3d5e59b9d1ec
RemcosRAT
62960caf3d007638be89631e502733f30c42a9ba0269e8c00457c9dec10e9136
RemcosRAT
70921226f4c6dd8d21672150cc0115b107c395f848aa89975ed3bb42c7eccd69
RemcosRAT
77ce24c903d75a340e3d5664091c7b72a2529640931e662b80b8dc3fb9226929
RemcosRAT
860e16c192167d5dd823b8e533858cdada7aa9b3173254f2f57031af68b84e0c
RemcosRAT
87284733f84447db5f12697e7ce2fb44671cbf404e040cf85085b223eab02b95
RemcosRAT
f5502d660f4b1f1110b7ba4fd0eab36ec5b44ff97c12b146a48ff8e38efa4745
RemcosRAT
+ 1'043 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/210916-brs96abgh9/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
79.134.225.77:2050
Unpacked files
SH256 hash:
b0d0c26f2ec5e3b26c0425b6b0387d9e8cddb2aea95961814890170383653201
MD5 hash:
d4681e1e8a056e899544505801189ee8
SHA1 hash:
e460ea1d22c1a333e5366dde3ac76d43ee568090
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/64ab4875-a8f5-4966-8a7a-2596e368b1f4/
SH256 hash:
c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea
MD5 hash:
0764105d28b8e3faae82e41a48f29577
SHA1 hash:
c17ccb1e848125dc6ac5afebe008c0a36d1d3b7b
Link:
https://www.unpac.me/results/64ab4875-a8f5-4966-8a7a-2596e368b1f4/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c15017d56ac6/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea

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:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe c15017d56ac6e02cf607d7188d5b4bb5485d9463031ba4effcb29ca84eb83dea

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1623452/
Cape
Cape
https://www.capesandbox.com/analysis/188290/

Comments


Avatar
zbet commented on 2021-09-16 01:22:51 UTC

url : hxxp://52.58.97.51/i3/u/remcoss.exe