MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074. 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: 13


Intelligence 13 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074
SHA3-384 hash: 006966a54fdfe0a09698e00a89f13e79b1ba8f248ac2e57f17669e0b48b8b314cb6d24f0565eaa81eb759d2936e5addb
SHA1 hash: 1bcb05fb57bee5a92d4ba567ff1fea3e866ac281
MD5 hash: c8dda172a1b70d273679c40e8a0b0e89
humanhash: summer-friend-seven-venus
File name:c8dda172a1b70d273679c40e8a0b0e89.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:755'200 bytes
First seen:2021-04-26 06:39:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:BiOJenoLLoS60/K7yh0ioLtx/1TyT+N4q9GoLHhuieXA:Bz4noLAikr/1TyTNqLHtf
Threatray 1'734 similar samples on MalwareBazaar
TLSH 9DF4E6A8775455E1DE4709B2E3CB8D12423C1F707B2A9A0B4B903F7A3D67E332935989
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
153
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c8dda172a1b70d273679c40e8a0b0e89.exe
Verdict:
Malicious activity
Analysis date:
2021-04-26 06:43:15 UTC
Tags:
trojan rat remcos keylogger
Link:
https://app.any.run/tasks/e382615b-741a-4084-86f4-a134091e2a01

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/144231/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
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/697398
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Detected unpacking (creates a PE file in dynamic memory)
Drops PE files with benign system names
Found malware configuration
Injects a PE file into a foreign processes
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
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 397617 Sample: Xi9F1U1mti.exe Startdate: 26/04/2021 Architecture: WINDOWS Score: 100 81 Multi AV Scanner detection for domain / URL 2->81 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 8 other signatures 2->87 13 Xi9F1U1mti.exe 3 2->13         started        17 svchost.exe 2 2->17         started        19 svchost.exe 2->19         started        21 4 other processes 2->21 process3 file4 69 C:\Users\user\AppData\...\Xi9F1U1mti.exe.log, ASCII 13->69 dropped 105 Contains functionality to steal Chrome passwords or cookies 13->105 107 Contains functionality to capture and log keystrokes 13->107 109 Contains functionality to inject code into remote processes 13->109 113 2 other signatures 13->113 23 Xi9F1U1mti.exe 4 5 13->23         started        26 BackgroundTransferHost.exe 13->26         started        111 Injects a PE file into a foreign processes 17->111 28 svchost.exe 17->28         started        30 svchost.exe 17->30         started        32 WerFault.exe 19->32         started        signatures5 process6 file7 65 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 23->65 dropped 67 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 23->67 dropped 34 wscript.exe 1 23->34         started        process8 process9 36 cmd.exe 1 34->36         started        process10 38 svchost.exe 3 36->38         started        42 conhost.exe 36->42         started        file11 63 C:\Users\user\AppData\...\svchost.exe.log, ASCII 38->63 dropped 89 System process connects to network (likely due to code injection or exploit) 38->89 91 Multi AV Scanner detection for dropped file 38->91 93 Detected unpacking (creates a PE file in dynamic memory) 38->93 95 4 other signatures 38->95 44 svchost.exe 4 3 38->44         started        signatures12 process13 dnsIp14 79 sandshoe.myfirewall.org 31.210.21.252, 2415, 49728 PLUSSERVER-ASN1DE Netherlands 44->79 97 System process connects to network (likely due to code injection or exploit) 44->97 99 Writes to foreign memory regions 44->99 101 Allocates memory in foreign processes 44->101 103 Injects a PE file into a foreign processes 44->103 48 svchost.exe 2 12 44->48         started        signatures15 process16 process17 50 WerFault.exe 48->50         started        54 iexplore.exe 48->54         started        56 iexplore.exe 48->56         started        dnsIp18 71 192.168.2.1 unknown unknown 50->71 61 C:\ProgramData\Microsoft\...\Report.wer, Little-endian 50->61 dropped 58 iexplore.exe 54->58         started        file19 process20 dnsIp21 73 github.com 140.82.121.3, 443, 49739, 49741 GITHUBUS United States 58->73 75 avatars.githubusercontent.com 185.199.109.133, 443, 49746, 49747 FASTLYUS Netherlands 58->75 77 2 other IPs or domains 58->77
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074/
Threat name:
ByteCode-MSIL.Infostealer.Coins
Create hunting rule
Status:
Malicious
First seen:
2021-04-26 06:40:16 UTC
AV detection:
18 of 47 (38.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kicfo6dnuduiv6o7maror2dwilimy3b3dkxticblsknawoxnmb2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0769c1487705fd65aeacdd813882e532d3bbd4ffa7106a2015bac448d8091bbb
RemcosRAT
4579780c18fb273fd0884237c7a4021dbbb38494194d8c1840449e8a62d29251
RemcosRAT
4fe8c8398a6cf30cfd7cbed590de821abdb40aa177781c43c19bdfec75308355
RemcosRAT
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
RemcosRAT
622a12c9935eb8f0cfa499bb445642a837fa150a161e5393f7a1d759e6f94f02
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833b575dac3a049ede0d27e2ff801d2e8d647cf04006f0037e1a9c71d7c8ace4
RemcosRAT
ab9041fe7e0a4a439521d6eb01cc16d74c00a0427c86b067120ac453ba7329d9
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c39bdd8f7c69c3140ef920e2b1d5965310058c5fa425b871f4d7751d8291d55e
RemcosRAT
cee5cdde8972799268ab97a77880793470dfc0d93c5e697bb66f83b6675f51ba
RemcosRAT
e0d4ce0316734fce0ea0d950f0ff1b4182f1364d581c549a199ac041cfe68ebb
RemcosRAT
+ 1'724 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210426-t5qjptbvs6/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
sandshoe.myfirewall.org:2415
Unpacked files
SH256 hash:
d23ff0b0ea9cc00ccdf720e7612175bf9bd35ad4a4a4d3209fa9014797b81ba2
MD5 hash:
103bec377249c7142e3a5fffcc2b2681
SHA1 hash:
1be36182a69015bc20ed1382a860c6c96bfd4eef
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/dcf78c94-954e-4778-980e-57b4e6afb269/
SH256 hash:
74b2935b9dfe4ba397fd0507ae3c36abb77193041f2e7c43c55dc4e7b33de61c
MD5 hash:
b5c218f30fecc9cb8513ff6a46737b01
SHA1 hash:
f0416867c2b114789620b318051f1fa390b07eae
Link:
https://www.unpac.me/results/dcf78c94-954e-4778-980e-57b4e6afb269/
SH256 hash:
5256719eace8104e4c873525bd5d0b4d7de5add6f1c5dd9d2878eb0fc39dd79a
MD5 hash:
b1e29db58202be02ce68dd0258b0c525
SHA1 hash:
d6ddfc9e02d2144390423a03e20c90c71fef58e8
Link:
https://www.unpac.me/results/dcf78c94-954e-4778-980e-57b4e6afb269/
SH256 hash:
520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074
MD5 hash:
c8dda172a1b70d273679c40e8a0b0e89
SHA1 hash:
1bcb05fb57bee5a92d4ba567ff1fea3e866ac281
Link:
https://www.unpac.me/results/dcf78c94-954e-4778-980e-57b4e6afb269/
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/520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Web download

RemcosRAT

Executable exe 520457786da0e88af9df6022e8e87642d0cc6c3b1aaf34082b929a0b3aed6074

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1143864/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/144231/

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