MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6307b6ffc48a88aeeff567c7a296ca6daf830f9b4eecf9f48352c489e5256fca. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6307b6ffc48a88aeeff567c7a296ca6daf830f9b4eecf9f48352c489e5256fca
SHA3-384 hash: e52fe3c09c831a5e2fc4ecb100e8ea4c71a5f21adfb41bd2f8c79f6ef1c900ab0e6f12c80971fb4b82a63cbe7ab2293b
SHA1 hash: 681563045e15886ad6861e6e4711073c8a449ae0
MD5 hash: 70c9e7044071a53a5d3bdfb56a77a10a
humanhash: finch-cold-blossom-wolfram
File name:DHL, pdf8897209547 பெற ஆவணங்கள்.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:397'312 bytes
First seen:2020-07-21 06:29:46 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:Xhh9yWvNhSyRw6TBbnbCzAgUX6zpfoz3blYPPu:7ZVbCzIz38
Threatray 883 similar samples on MalwareBazaar
TLSH 9C844910D7F88ADAE7BA57BCE470004087B4B91AA7E6E7591B90F4ED1822751CB13F63
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: hwsrv-752878.hostwindsdns.com
Sending IP: 104.168.175.61
From: DHL Express Cargo <delivery@dhl.com>
Subject: கப்பல் ஆவணங்களின் அறிவிப்பு
Attachment: DHL, pdf8897209547 பெற ஆவணங்கள்.iso (contains "DHL, pdf8897209547 பெற ஆவணங்கள்.exe")

RemcosRAT C2:
zimchi2020.ddns.net:7171 (185.19.85.135)

Intelligence

File Origin
# of uploads :
1
# of downloads :
66
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/29704/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun with Startup directory
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/392502
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 248431 Sample: DHL, pdf8897209547 #U0baa#U... Startdate: 21/07/2020 Architecture: WINDOWS Score: 100 74 zimchi2020.ddns.net 2->74 78 Multi AV Scanner detection for domain / URL 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Multi AV Scanner detection for dropped file 2->82 84 11 other signatures 2->84 11 DHL, pdf8897209547 #U0baa#U0bc6#U0bb1 #U0b86#U0bb5#U0ba3#U0b99#U0bcd#U0b95#U0bb3#U0bcd.exe 9 2->11         started        14 remcos.exe 2->14         started        17 remcos.exe 2->17         started        signatures3 process4 file5 66 C:\Users\user\AppData\...\sHDVdUpRaP.exe, PE32 11->66 dropped 68 C:\Users\user\AppData\Local\...\tmp882E.tmp, XML 11->68 dropped 70 DHL, pdf8897209547...U0bb3#U0bcd.exe.log, ASCII 11->70 dropped 19 DHL, pdf8897209547 #U0baa#U0bc6#U0bb1 #U0b86#U0bb5#U0ba3#U0b99#U0bcd#U0b95#U0bb3#U0bcd.exe 4 5 11->19         started        22 schtasks.exe 1 11->22         started        24 DHL, pdf8897209547 #U0baa#U0bc6#U0bb1 #U0b86#U0bb5#U0ba3#U0b99#U0bcd#U0b95#U0bb3#U0bcd.exe 11->24         started        34 2 other processes 11->34 94 Injects a PE file into a foreign processes 14->94 36 2 other processes 14->36 26 remcos.exe 17->26         started        28 remcos.exe 17->28         started        30 remcos.exe 17->30         started        32 remcos.exe 17->32         started        signatures6 process7 file8 54 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->54 dropped 56 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->56 dropped 38 wscript.exe 1 19->38         started        40 conhost.exe 22->40         started        process9 process10 42 cmd.exe 1 38->42         started        process11 44 remcos.exe 4 42->44         started        48 conhost.exe 42->48         started        file12 72 C:\Users\user\AppData\...\remcos.exe.log, ASCII 44->72 dropped 86 Multi AV Scanner detection for dropped file 44->86 88 Contains functionality to steal Chrome passwords or cookies 44->88 90 Contains functionality to capture and log keystrokes 44->90 92 2 other signatures 44->92 50 remcos.exe 2 149 44->50         started        signatures13 process14 dnsIp15 76 zimchi2020.ddns.net 185.19.85.135, 49719, 49720, 49721 DATAWIRE-ASCH Switzerland 50->76 58 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 50->58 dropped 60 C:\Users\user\...\time_20200721_093446.dat, data 50->60 dropped 62 C:\Users\user\...\time_20200721_093445.dat, data 50->62 dropped 64 70 other malicious files 50->64 dropped file16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6307b6ffc48a88aeeff567c7a296ca6daf830f9b4eecf9f48352c489e5256fca/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-21 06:31:05 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mmd3n76erkek537vm7d2ffwknwxygd43j3wpt5edklcitzjfn7fa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
5df080a145c2dd20f01dcb463efbc7fc1fc1c5bb61567b972c8b4ceb62338088
RemcosRAT
671759b97f6889b6732fb377b5af7ccc9df5e8769c2aa07a371caab68c5639fd
RemcosRAT
8ee4be1165d1e195defb89faee6746304f38293aac4f59d332408e3bff243822
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92d2689159c5984751e67f61486e25a8f66921d372249af5ac22078cf22c8be9
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946cdeba80da84a83af805ec82e7f07819ed853356d1d546be0c5ac28b5f70d4
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9b8bfd519d8bbe5a7c285f61c73abef27b4e18a22076d036698ec943b5e61c01
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9f56641fa34365d546b70d51aa82899b863a4781a3e51f6e78c62fa198472a79
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a78239b17de3eac55e5fcbeceefdd2fe78f76888a2639f54024232b4dcda394c
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ac0b86bf664770295ad2de9a46edabc374040a467471a61fdac436d52e451964
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da7ce8060ef04b847aeb11d727b9d8fad9526dc3314adce4ffa5e0b597ac5547
RemcosRAT
+ 873 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos persistence
Link:
https://tria.ge/reports/200721-gg6blg8f2a/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
zimchi2020.ddns.net:7171
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6307b6ffc48a88aeeff567c7a296ca6daf830f9b4eecf9f48352c489e5256fca

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: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

iso 560addbfff564a63067c04dc42b812934e5cf7a2c0fa68d87c76a005aa004c0f

RemcosRAT

Executable exe 6307b6ffc48a88aeeff567c7a296ca6daf830f9b4eecf9f48352c489e5256fca

(this sample)

  
Dropped by
MD5 028fb5abb919e99330f5937c7b17615c
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 560addbfff564a63067c04dc42b812934e5cf7a2c0fa68d87c76a005aa004c0f
Cape
Cape
https://www.capesandbox.com/analysis/29704/

Comments