MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10
SHA3-384 hash: 60fd2e434bc7d3134eca8c74023fe821d53ad649f8dde0ac66d018c14d094f890de2e91b99037d455fabc8f436b5be3f
SHA1 hash: 25c3fd6b27ac8525d1167025d9cc417037e8c91d
MD5 hash: b4034821bbadb94b08b3be24a920881d
humanhash: august-lemon-bluebird-jersey
File name:Order#2334.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:840'704 bytes
First seen:2021-03-08 12:52:47 UTC
Last seen:2021-03-09 23:56:44 UTC
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:Ok40KOlN0BRjOu+HdLFcsFw2DKaiTg8gXEuYvSZHusL7QpoN:OkPfkgdLSsWXHgLEu8sL7K
Threatray 120 similar samples on MalwareBazaar
TLSH C605DF4862B7CA52CA5873F5D463063C13789F76CB2DE2CE2FC27195D836324254AA6F
Reporter GovCERT_CH
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
125
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Order#2334.exe
Verdict:
Malicious activity
Analysis date:
2021-03-08 12:54:05 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/2fb0999c-45b1-4c4d-a7a8-887821aeb44a

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/122765/
Detection(s):
SecuriteInfo.com.ArtemisB4034821BBAD.17418.9475.UNOFFICIAL
Create hunting rule

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/631163
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
C2 URLs / IPs found in malware configuration
Changes security center settings (notifications, updates, antivirus, firewall)
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Drops PE files with benign system names
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Sigma detected: System File Execution Location Anomaly
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)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 364553 Sample: Order#2334.exe Startdate: 08/03/2021 Architecture: WINDOWS Score: 100 65 awwes-antivirus.duckdns.org 2->65 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 11 other signatures 2->85 14 Order#2334.exe 3 2->14         started        18 svchost.exe 2->18         started        20 svchost.exe 2 2->20         started        22 7 other processes 2->22 signatures3 process4 dnsIp5 63 C:\Users\user\AppData\...\Order#2334.exe.log, ASCII 14->63 dropped 103 Contains functionality to steal Chrome passwords or cookies 14->103 105 Contains functionality to capture and log keystrokes 14->105 107 Contains functionality to inject code into remote processes 14->107 111 4 other signatures 14->111 25 Order#2334.exe 4 5 14->25         started        109 Changes security center settings (notifications, updates, antivirus, firewall) 18->109 28 MpCmdRun.exe 18->28         started        30 svchost.exe 20->30         started        75 127.0.0.1 unknown unknown 22->75 file6 signatures7 process8 file9 59 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 25->59 dropped 61 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 25->61 dropped 32 wscript.exe 1 25->32         started        34 conhost.exe 28->34         started        process10 process11 36 cmd.exe 1 32->36         started        process12 38 svchost.exe 3 36->38         started        42 conhost.exe 36->42         started        file13 57 C:\Users\user\AppData\...\svchost.exe.log, ASCII 38->57 dropped 87 Multi AV Scanner detection for dropped file 38->87 89 Detected unpacking (creates a PE file in dynamic memory) 38->89 91 Contains functionality to steal Chrome passwords or cookies 38->91 93 3 other signatures 38->93 44 svchost.exe 4 3 38->44         started        signatures14 process15 dnsIp16 77 awwes-antivirus.duckdns.org 55.154.4.71, 7933 DNIC-ASBLK-01534-01546US United States 44->77 95 System process connects to network (likely due to code injection or exploit) 44->95 97 Writes to foreign memory regions 44->97 99 Allocates memory in foreign processes 44->99 101 Injects a PE file into a foreign processes 44->101 48 svchost.exe 44->48         started        signatures17 process18 process19 50 iexplore.exe 48->50         started        process20 52 iexplore.exe 50->52         started        55 iexplore.exe 50->55         started        dnsIp21 67 github.com 140.82.121.3, 443, 49718, 49719 GITHUBUS United States 52->67 69 avatars.githubusercontent.com 185.199.108.133, 443, 49722, 49723 FASTLYUS Netherlands 52->69 71 140.82.121.4, 443, 49732, 49733 GITHUBUS United States 55->71 73 185.199.111.133, 443, 49736, 49737 FASTLYUS Netherlands 55->73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-08 08:04:31 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
25 of 47 (53.19%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=k6q65atk7mztk4uwlk7hixaglf6qcepxkskmlbtbtvvshwoo3iia._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
26c230cde9fb7544f7e3762f1abac39f6c8f0d2db0689178b223e0e68d2a6a0a
RemcosRAT
46131c5f93779a7547011c983be113cbf561fee1f4cba59ce8dd8f0bfb4a48f7
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9736f5417c474a27c98a2323894d7948a0841fb74615e1909c0fabddc1e8bc2d
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b0dad01939e09e869b27e59d7a7d7c79fdd31bb4a8c52153844c23c3c34bf368
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b782581b1ca3da09fdf3ecbb173ee3ca1f313f5f325f407df976601cad8ce839
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d6bb7d0218b0894bcc733065261069c1cb4e151b4ca367f37e888d2beacc0dd9
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d94560cd6d50d7d21e77bc064c508f5569329d6c2a074859ba3b1ea2f64142ec
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e4e47b27c701e89ac6a550ab1f8ecb6058c79d9f9bca9a56ec71e3baf01dc545
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ef6ac1293cdfda22c8d940f96c5433f406a4c3666e6941e4f094a8cf50d04ac1
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f8d06c20dc2af83af29551f384bbde4e5380911d8db0f9e56ca549bb5995d413
RemcosRAT
+ 110 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210308-m73mzgh2pn/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
awwes-antivirus.duckdns.org:7933
Unpacked files
SH256 hash:
3e935b792240b34540a162d26525e920e95e1bc9c5cb4a938888803afea8fd68
MD5 hash:
28960d58a646462ffc4fa363abc5207c
SHA1 hash:
ccfff84a430837c7a9705805a82cfb79e2efa2fe
Link:
https://www.unpac.me/results/6eb39163-9dd0-4a44-b781-fb66618d47a5/
SH256 hash:
1510861928b533e1529c1ffe7c6d57d9e5e928830d0afb28fd0fa730ff83fbdc
MD5 hash:
8f85df46a482b5b068ae7667bf1a33d6
SHA1 hash:
a210d369311aa4d709dc962c634174738576907e
Link:
https://www.unpac.me/results/6eb39163-9dd0-4a44-b781-fb66618d47a5/
SH256 hash:
1237119244e38d1df9de5c48b5c155bf7f3d2109689df1484ab51babce3c521f
MD5 hash:
567feeb9feae4e7eb9513f2d1e453066
SHA1 hash:
1d4507a3687538f708be9c34b3339943005b8ef9
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/6eb39163-9dd0-4a44-b781-fb66618d47a5/
Parent samples :
e4e47b27c701e89ac6a550ab1f8ecb6058c79d9f9bca9a56ec71e3baf01dc545
57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10
SH256 hash:
57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10
MD5 hash:
b4034821bbadb94b08b3be24a920881d
SHA1 hash:
25c3fd6b27ac8525d1167025d9cc417037e8c91d
Link:
https://www.unpac.me/results/6eb39163-9dd0-4a44-b781-fb66618d47a5/
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/57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10

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_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

442b743f7dd7240f9067da2e61c457e61c27aec0db1853da23bfad5b850fd7ca

RemcosRAT

Executable exe 57a1ee826afb333572965abe745c06597d0111f75494c586619d6b23d9ceda10

(this sample)

  
Dropped by
MD5 117e29a5e17af7097b64cca025ee84e6
  
Dropped by
SHA256 442b743f7dd7240f9067da2e61c457e61c27aec0db1853da23bfad5b850fd7ca
  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/122765/

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