MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621. 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 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621
SHA3-384 hash: c3a175ea756768fbeb55074fd14a445f158fe871468b76114a00fb9582cd728910b7473c2dcdfbe992561b8e9c447421
SHA1 hash: c1a0f081459ba0595aa85a5c14998a853aede3f5
MD5 hash: 187e55965acaf3a1b7d4af227b8a97f8
humanhash: autumn-eleven-single-mobile
File name:187e55965acaf3a1b7d4af227b8a97f8.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'217'024 bytes
First seen:2021-05-06 07:29:04 UTC
Last seen:2021-05-06 09:57:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:lTj+ruyYhoGGGzGtGaGlGxGTGZGZGpGYGvGMG5GcGMGVG5GEGLGLGDGxGjGSGNGJ:lGA
Threatray 1'757 similar samples on MalwareBazaar
TLSH CC45E76053CF529937B89E2193C9948E4D636C942E3E7242A9449737C2B2CD5CFF1F2A
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
4
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/151418/
Detection(s):
SecuriteInfo.com.Artemis187E55965ACA.25397.27903.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
DNS request
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file
Creating a window
Deleting a recently created file
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
Connection attempt to an infection source
Result
Verdict:
UNKNOWN
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/713388
Signature
.NET source code contains very large strings
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
Found malware configuration
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: WScript or CScript Dropper
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 405622 Sample: he3T87lHQO.exe Startdate: 06/05/2021 Architecture: WINDOWS Score: 100 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 7 other signatures 2->56 10 he3T87lHQO.exe 3 2->10         started        14 win.exe 2 2->14         started        16 win.exe 2 2->16         started        process3 file4 44 C:\Users\user\AppData\...\he3T87lHQO.exe.log, ASCII 10->44 dropped 58 Contains functionality to steal Chrome passwords or cookies 10->58 60 Contains functionality to capture and log keystrokes 10->60 62 Contains functionality to inject code into remote processes 10->62 64 Contains functionality to steal Firefox passwords or cookies 10->64 18 he3T87lHQO.exe 4 4 10->18         started        66 Injects a PE file into a foreign processes 14->66 21 win.exe 14->21         started        23 win.exe 16->23         started        signatures5 process6 file7 38 C:\Users\user\AppData\Roaming\win.exe, PE32 18->38 dropped 40 C:\Users\user\...\win.exe:Zone.Identifier, ASCII 18->40 dropped 42 C:\Users\user\AppData\Local\...\install.vbs, data 18->42 dropped 25 wscript.exe 1 18->25         started        process8 process9 27 cmd.exe 1 25->27         started        process10 29 win.exe 3 27->29         started        33 conhost.exe 27->33         started        file11 46 C:\Users\user\AppData\Local\...\win.exe.log, ASCII 29->46 dropped 68 Multi AV Scanner detection for dropped file 29->68 70 Machine Learning detection for dropped file 29->70 72 Contains functionality to steal Chrome passwords or cookies 29->72 74 3 other signatures 29->74 35 win.exe 2 1 29->35         started        signatures12 process13 dnsIp14 48 wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu 172.111.156.130, 1996 M247GB United States 35->48
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-06 07:29:22 UTC
AV detection:
14 of 44 (31.82%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tex7ftncezrwa56dfjkic6m2subvj5fgi66guutgzwfrqieqeyqq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0769c1487705fd65aeacdd813882e532d3bbd4ffa7106a2015bac448d8091bbb
RemcosRAT
4579780c18fb273fd0884237c7a4021dbbb38494194d8c1840449e8a62d29251
RemcosRAT
4fe8c8398a6cf30cfd7cbed590de821abdb40aa177781c43c19bdfec75308355
RemcosRAT
522a495b289cf22898f762f18571b8839194e6232cb80fbb28dc426cbeeee323
RemcosRAT
622a12c9935eb8f0cfa499bb445642a837fa150a161e5393f7a1d759e6f94f02
RemcosRAT
833b575dac3a049ede0d27e2ff801d2e8d647cf04006f0037e1a9c71d7c8ace4
RemcosRAT
ab9041fe7e0a4a439521d6eb01cc16d74c00a0427c86b067120ac453ba7329d9
RemcosRAT
c39bdd8f7c69c3140ef920e2b1d5965310058c5fa425b871f4d7751d8291d55e
RemcosRAT
cee5cdde8972799268ab97a77880793470dfc0d93c5e697bb66f83b6675f51ba
RemcosRAT
e0d4ce0316734fce0ea0d950f0ff1b4182f1364d581c549a199ac041cfe68ebb
RemcosRAT
+ 1'747 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/210506-99ns4x4ecx/
Behaviour
Modifies registry class
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:
wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu:1996
Unpacked files
SH256 hash:
3ca8e8de1bcf18112135a2fc178beed91ec57cc42c418d0c914a7ed01e030158
MD5 hash:
081468227c839e8ae59557950b6c191a
SHA1 hash:
a91f0f66c45f829730f6702b528f29cd5eed9c26
Link:
https://www.unpac.me/results/dc864825-abd7-4179-8ba0-21b823869789/
SH256 hash:
e20577a16ba8aac378e70fb701f0a2c7f0e7b89b352a16937db58386d357d5bc
MD5 hash:
d0bc3a749bc90c0c86bd3e63921fc38b
SHA1 hash:
dcb3f18b35b66f3d2afc62d075cbbcbf946ebaa5
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/dc864825-abd7-4179-8ba0-21b823869789/
SH256 hash:
992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621
MD5 hash:
187e55965acaf3a1b7d4af227b8a97f8
SHA1 hash:
c1a0f081459ba0595aa85a5c14998a853aede3f5
Link:
https://www.unpac.me/results/dc864825-abd7-4179-8ba0-21b823869789/
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/992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

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: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:pe_imphash
Create hunting rule
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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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 992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/151418/
  
URLhaus
https://urlhaus.abuse.ch/url/1199255/
  
Delivery method
Distributed via web download

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