MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f493867adbd74622c28e2c1e670b4c1f64566ea830dbf7bd0c5905b858a33c8. 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: 8


Intelligence 8 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6f493867adbd74622c28e2c1e670b4c1f64566ea830dbf7bd0c5905b858a33c8
SHA3-384 hash: bfcd17dab59cefa8b05a0166656c91b0d807fc1644a6eb639d10ea90e403c04fce2ccaf3bc1b50caf18b593102939b5b
SHA1 hash: 8058d432c1b01f056786b62fb3e518f0c14192f5
MD5 hash: da9cf305f26cf0748736fd063f56e801
humanhash: magazine-shade-lake-colorado
File name:Cobro Juridico_084727993_69693424_605648848569050599788_7446052_6963949629025_8175427325491_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'901'216 bytes
First seen:2020-11-19 08:22:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'476 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:YF5rSQDplJ+ZjFXB2Sg26sH2nUWjnGq5UMY:0nx+XB2KWUWU
Threatray 1'138 similar samples on MalwareBazaar
TLSH 0F956B54F880345F7A8A40F04FDB56E892D67609293127398D6369BCDB1E18B7CEF872
Reporter abuse_ch
Tags:exe Outlook RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: NAM10-BN7-obe.outbound.protection.outlook.com
Sending IP: 40.92.40.106
From: TRACTOCAMIONES NEIVA <ventas_tracto@hotmail.es>
Subject: COBRO JURIDICO SERFINANZA.
Attachment: Cobro Juridico_084727993_69693424_605648848569050599788_7446052_6963949629025_8175427325491.tgz (contains "Cobro Juridico_084727993_69693424_605648848569050599788_7446052_6963949629025_8175427325491_pdf.exe")

RemcosRAT C2:
databasepropersonombrecomercialideasearchwords.services:7580 (186.169.53.6)

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.ArtemisDA9CF305F26C.5572.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Adding an access-denied ACE
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Deleting a recently created file
Running batch commands
DNS request
Launching the default Windows debugger (dwwin.exe)
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Result
Gathering data
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/542553
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 320380 Sample: Cobro Juridico_084727993_69... Startdate: 19/11/2020 Architecture: WINDOWS Score: 100 50 databasepropersonombrecomercialideasearchwords.services 2->50 64 Multi AV Scanner detection for domain / URL 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 10 other signatures 2->70 11 Cobro Juridico_084727993_69693424_605648848569050599788_7446052_6963949629025_8175427325491_pdf.exe 2 2->11         started        14 PxxoServicesNet.exe 2 2->14         started        16 PxxoServicesNet.exe 2 2->16         started        signatures3 process4 signatures5 72 Hides threads from debuggers 11->72 74 Injects a PE file into a foreign processes 11->74 18 Cobro Juridico_084727993_69693424_605648848569050599788_7446052_6963949629025_8175427325491_pdf.exe 4 5 11->18         started        21 WerFault.exe 23 9 11->21         started        24 PxxoServicesNet.exe 14->24         started        26 WerFault.exe 14->26         started        28 PxxoServicesNet.exe 16->28         started        process6 dnsIp7 46 C:\Users\user\AppData\...\PxxoServicesNet.exe, PE32 18->46 dropped 48 C:\...\PxxoServicesNet.exe:Zone.Identifier, ASCII 18->48 dropped 30 wscript.exe 1 18->30         started        52 192.168.2.1 unknown unknown 21->52 file8 process9 process10 32 cmd.exe 1 30->32         started        process11 34 PxxoServicesNet.exe 2 32->34         started        37 conhost.exe 32->37         started        signatures12 56 Multi AV Scanner detection for dropped file 34->56 58 Machine Learning detection for dropped file 34->58 60 Contains functionality to steal Chrome passwords or cookies 34->60 62 4 other signatures 34->62 39 PxxoServicesNet.exe 34->39         started        42 PxxoServicesNet.exe 34->42         started        44 WerFault.exe 34->44         started        process13 dnsIp14 54 databasepropersonombrecomercialideasearchwords.services 186.169.53.6, 49758, 49759, 49760 COLOMBIATELECOMUNICACIONESSAESPCO Colombia 39->54
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6f493867adbd74622c28e2c1e670b4c1f64566ea830dbf7bd0c5905b858a33c8/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2020-11-19 08:23:06 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=n5etqz5nxv2gelbi4la6m4fuyh3ekzxkqmg3666qywifxbmkgpea._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
1b9cbd60298e5be7b6c5813a3c03bd423ae73364049848c44145b9c079fd0adc
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
936027b0c02941505eb900045a050c0806b30a8d49c7d34fff9eff42a8168b27
RemcosRAT
a1c644a64801c61e1649517c3debc28b194b4f9d43e1a99bc28724f652c3ca5e
RemcosRAT
b5ba143b36eb77a1899c07ef016155b3b7ef73b83456cadf534245896360b902
RemcosRAT
ca62c5cf8e6f3260dbe15a469e90197612af8843d897f65c7fdde87554ebae51
RemcosRAT
ea7caecf45fc75ba512efd3cf878800893c2a43ae66fc0a9a452687ba26c1025
RemcosRAT
f6c8f18b6a8db8307ea07c171236d118f91924e497027eeb305800ba2eee4fbe
RemcosRAT
+ 1'128 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201119-xpdsd3yd9a/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
ServiceHost packer
Remcos
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:7580
Unpacked files
SH256 hash:
6f493867adbd74622c28e2c1e670b4c1f64566ea830dbf7bd0c5905b858a33c8
MD5 hash:
da9cf305f26cf0748736fd063f56e801
SHA1 hash:
8058d432c1b01f056786b62fb3e518f0c14192f5
Link:
https://www.unpac.me/results/0b6f2e3c-f347-4c7e-8a45-070694a4a250/
SH256 hash:
e4007d33144846c2dea273df6619f3c3f7817e5c14b2025d11f987d45172a16f
MD5 hash:
151e104874038bc747badf7f6aba2d38
SHA1 hash:
3f143ad385435ae807e9d7170b6d3bda8c92505d
Link:
https://www.unpac.me/results/0b6f2e3c-f347-4c7e-8a45-070694a4a250/
SH256 hash:
d27fdad080e1f6b819b5c582cd072fe94b0263d7720171388e13de16354db0d2
MD5 hash:
fdc3a61a57e05711afee417fe08866e5
SHA1 hash:
7fb30204bab758f8c886e4e4db829800fb41f6e0
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/0b6f2e3c-f347-4c7e-8a45-070694a4a250/
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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
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

rar b1adde943a7ce755fe0528c602bf00a7f1fa87608a00051c726c296b0161e497

RemcosRAT

Executable exe 6f493867adbd74622c28e2c1e670b4c1f64566ea830dbf7bd0c5905b858a33c8

(this sample)

  
Dropped by
MD5 4b68030f27db1e2a8a326adfb542e73e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b1adde943a7ce755fe0528c602bf00a7f1fa87608a00051c726c296b0161e497

Comments