MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1
SHA3-384 hash: b59d8e1aae27496f388bf6e4a1e88e276014d9d885a983d30f1aeed8adfdace9460461c951bc0f58b9f044744cd3c2c7
SHA1 hash: 619b93e5742153b2c667b55b3c90d33fce0a795e
MD5 hash: 56f2689631039e478d381c489cd9ee01
humanhash: london-west-louisiana-five
File name:PO-PDF_PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:510'464 bytes
First seen:2021-01-18 16:28:06 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3f85ebb67bac58f72de974a91d40889a (5 x Formbook, 3 x RemcosRAT, 2 x AgentTesla)
ssdeep 12288:B8WvAMYGY5RFNBeU7vgTOzHdCeVsznTO616Ia:B8W4T17vgKznVKnd6Ia
Threatray 1'416 similar samples on MalwareBazaar
TLSH BAB49C21B880C032C07325354979E2B2097EA5305E655ADFBBC8197A5FB41D1BB3AB7F
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mibm.pl
Sending IP: 64.188.27.72
From: anna.banasiak@mibm.pl
Subject: PO-5711966
Attachment: PO-PDF_PDF.iso (contains "PO-PDF_PDF.exe")

RemcosRAT C2:
nkosarevaocs.duckdns.org:7266 (91.193.75.157)

Pointing to nVpn:

% Information related to '91.193.75.0 - 91.193.75.255'

% Abuse contact for '91.193.75.0 - 91.193.75.255' is 'abuse@privacyfirst.sh'

inetnum: 91.193.75.0 - 91.193.75.255
descr: Moscow, Russia
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-RU2
country: RU
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
abuse-c: ACRO34258-RIPE
mnt-by: PRIVACYFIRST-MNT
mnt-by: RIPE-NCC-END-MNT
org: ORG-KHd1-RIPE
status: ASSIGNED PI
created: 2012-06-04T11:05:55Z
last-modified: 2021-01-03T20:17:23Z
source: RIPE
sponsoring-org: ORG-MW1-RIPE

Intelligence

File Origin
# of uploads :
1
# of downloads :
136
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO-PDF_PDF.exe
Verdict:
Malicious activity
Analysis date:
2021-01-18 16:30:20 UTC
Tags:
rat remcos trojan keylogger
Link:
https://app.any.run/tasks/a6ce9ab6-3d07-44bc-8dd5-e72e253cfcc8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/112600/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a custom TCP request
Sending a UDP request
Creating a file in the %temp% subdirectories
Creating a file
Running batch commands
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Creating a window
Launching a process
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
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:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/584013
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
Detected Remcos RAT
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
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 dynamic DNS services
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: 341043 Sample: PO-PDF_PDF.exe Startdate: 18/01/2021 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Multi AV Scanner detection for submitted file 2->66 68 Detected Remcos RAT 2->68 70 7 other signatures 2->70 11 PO-PDF_PDF.exe 4 2->11         started        15 remcos.exe 1 2->15         started        17 remcos.exe 1 2->17         started        process3 file4 58 C:\Users\user\AppData\Local\Temp\...\file.exe, PE32 11->58 dropped 60 C:\...\81218996fd1c41f0995c36a56d2ab481.xml, XML 11->60 dropped 78 Contains functionality to steal Chrome passwords or cookies 11->78 80 Contains functionality to capture and log keystrokes 11->80 82 Contains functionality to inject code into remote processes 11->82 84 Contains functionality to steal Firefox passwords or cookies 11->84 19 PO-PDF_PDF.exe 4 5 11->19         started        22 cmd.exe 1 11->22         started        24 remcos.exe 1 15->24         started        27 remcos.exe 15->27         started        86 Maps a DLL or memory area into another process 17->86 29 remcos.exe 17->29         started        signatures5 process6 file7 54 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->54 dropped 56 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->56 dropped 31 wscript.exe 1 19->31         started        33 conhost.exe 22->33         started        35 schtasks.exe 1 22->35         started        72 Maps a DLL or memory area into another process 24->72 37 remcos.exe 24->37         started        signatures8 process9 process10 39 cmd.exe 1 31->39         started        process11 41 remcos.exe 1 39->41         started        44 conhost.exe 39->44         started        signatures12 74 Multi AV Scanner detection for dropped file 41->74 76 Machine Learning detection for dropped file 41->76 46 remcos.exe 1 41->46         started        49 remcos.exe 41->49         started        process13 signatures14 88 Maps a DLL or memory area into another process 46->88 51 remcos.exe 2 3 46->51         started        process15 dnsIp16 62 nkosarevaocs.duckdns.org 185.244.30.69, 49723, 7266 DAVID_CRAIGGG Netherlands 51->62
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1/
Threat name:
Win32.Backdoor.NanoBot
Create hunting rule
Status:
Malicious
First seen:
2021-01-18 16:19:04 UTC
AV detection:
23 of 46 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ztmro3jgzl4qmr3fhalbmlvemivoetrfhn62cop57lgxjjkvvcqq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
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b67361c9d7c2bcbe7e94b698f4d5abd1e6ffd96429d2c66dcfd92a573303e4f0
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b704ceb41947acea7cb7c2d1a5b3de33b25120728fec16b4d8b35fbaa05e5afb
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bc8513a74ddfc1a9a78fbdbf39d90a61d59819dfb116846daf730693622c3c69
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bf0e82358921791e16998b942e600a500a967f6e5c5b034a675af7e49663a34f
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fa5850a0ba8809631d4e3f5a3f8cafa133b3d6ae37088eeb934ec13d1bc9f368
RemcosRAT
+ 1'406 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210118-6wcnc2jrrn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
nkosarevaocs.duckdns.org:7266
Unpacked files
SH256 hash:
ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1
MD5 hash:
56f2689631039e478d381c489cd9ee01
SHA1 hash:
619b93e5742153b2c667b55b3c90d33fce0a795e
Link:
https://www.unpac.me/results/4e55722e-38d9-4833-9035-1e9af54a63e3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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

iso e323db9c9d6066a1141e44a331b3055504762752aa5ff621027dc0d90062f542

RemcosRAT

Executable exe ccd9176d26caf90647653816162ea4622ae24e253b7da139fdfacd74a555a8a1

(this sample)

  
Dropped by
MD5 d0ac6d86cd9e5191d986db211db58277
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 e323db9c9d6066a1141e44a331b3055504762752aa5ff621027dc0d90062f542
Cape
Cape
https://www.capesandbox.com/analysis/112600/

Comments