MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff
SHA3-384 hash: e5a215a8d0612902126c772aaae34247c836bfe81e037fbb00ea09168ad2b453055b23be599647d2f9f77ebb6fd6185c
SHA1 hash: dd1c13afa2d51bb57de8aae7908754668866cea0
MD5 hash: 36391308af39ab00d41da175c979ec35
humanhash: arkansas-batman-comet-golf
File name:Extracto_Serfinanza_75968393132982990618886_662676174680731044463_67285463252170851709708228_884412360929464673878_pdf.e
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'851'328 bytes
First seen:2021-05-10 06:53:31 UTC
Last seen:2021-05-10 07:02:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 3072:Y7X8CymjL3sZTHaOqwMprYqBh7N71UIr89nswmBCaEJwBtfqVLWc6Eblm9BFsYAl:IhqJeRj
Threatray 229 similar samples on MalwareBazaar
TLSH CAD52A71318D245D6A7BBEB9518CB78E2E432A92ADFD411206012717CFA0F51DFB8B63
Reporter abuse_ch
Tags:e RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
130
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/153737/
Detection(s):
SecuriteInfo.com.Artemis36391308AF39.31544.16450.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a process from a recently created file
Creating a process with a hidden window
Launching a service
Deleting a recently created file
Launching a process
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file
Creating a window
Running batch commands
DNS request
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
Adding exclusions to Windows Defender
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/721156
Signature
.NET source code contains very large strings
Adds a directory exclusion to Windows Defender
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 (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 409498 Sample: 673878_pdf.e Startdate: 10/05/2021 Architecture: WINDOWS Score: 100 89 Found malware configuration 2->89 91 Malicious sample detected (through community Yara rule) 2->91 93 Multi AV Scanner detection for submitted file 2->93 95 8 other signatures 2->95 11 673878_pdf.exe 6 7 2->11         started        15 PxxoServicesTrialNet1.exe 2->15         started        17 PxxoServicesTrialNet1.exe 2->17         started        process3 file4 69 C:\Users\user\AppData\...\673878_pdf.exe.log, ASCII 11->69 dropped 71 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 11->71 dropped 97 Contains functionality to steal Chrome passwords or cookies 11->97 99 Contains functionality to capture and log keystrokes 11->99 101 Contains functionality to inject code into remote processes 11->101 103 Contains functionality to steal Firefox passwords or cookies 11->103 19 673878_pdf.exe 11->19         started        22 AdvancedRun.exe 1 11->22         started        24 powershell.exe 26 11->24         started        73 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 15->73 dropped 105 Adds a directory exclusion to Windows Defender 15->105 107 Injects a PE file into a foreign processes 15->107 26 AdvancedRun.exe 15->26         started        28 powershell.exe 15->28         started        75 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 17->75 dropped 30 AdvancedRun.exe 17->30         started        signatures5 process6 file7 63 C:\Users\user\...\PxxoServicesTrialNet1.exe, PE32 19->63 dropped 65 PxxoServicesTrialN...exe:Zone.Identifier, ASCII 19->65 dropped 67 C:\Users\user\AppData\Local\...\install.vbs, data 19->67 dropped 32 wscript.exe 19->32         started        34 AdvancedRun.exe 22->34         started        37 conhost.exe 24->37         started        39 AdvancedRun.exe 26->39         started        41 conhost.exe 28->41         started        43 AdvancedRun.exe 30->43         started        process8 dnsIp9 45 cmd.exe 32->45         started        79 192.168.2.1 unknown unknown 34->79 process10 process11 47 PxxoServicesTrialNet1.exe 45->47         started        51 conhost.exe 45->51         started        file12 77 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 47->77 dropped 81 Multi AV Scanner detection for dropped file 47->81 83 Detected unpacking (changes PE section rights) 47->83 85 Detected unpacking (overwrites its own PE header) 47->85 87 2 other signatures 47->87 53 AdvancedRun.exe 47->53         started        55 powershell.exe 47->55         started        57 PxxoServicesTrialNet1.exe 47->57         started        signatures13 process14 process15 59 AdvancedRun.exe 53->59         started        61 conhost.exe 55->61         started       
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-05-10 06:54:10 UTC
AV detection:
7 of 42 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6jz4tsuhr6rcd4zsch6gxsybt6rejrrnzzef37obdx2hobau4x7q._file
Verdict:
malicious
Similar samples:
0db50b639d859d3ddf9aa74f96d12f7ecb189a0b3006a7ed1cfd73edbc34d220
RemcosRAT
2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4
RemcosRAT
78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
RemcosRAT
9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
RemcosRAT
ae6d4b4b89654fbd35c69c05a85fd4a2b84edd7091ffe372f4ba7115c2b8fbf8
RemcosRAT
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
RemcosRAT
c7ce97bf28191b9f81871421f7f6fea0c86fca516d3e8706e16c0f07e9e7ed5b
RemcosRAT
ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
RemcosRAT
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
RemcosRAT
f981bf3b1d0388cd1c0e0638aefbcedbbebd9f8ff504c0832abb85032bc4ada6
RemcosRAT
+ 219 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos evasion persistence rat trojan
Link:
https://tria.ge/reports/210510-8ng481shv6/
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
Windows security modification
Executes dropped EXE
Nirsoft
Modifies Windows Defender Real-time Protection settings
Remcos
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:3521
Unpacked files
SH256 hash:
b9160ed8008d31770edf6d2066111f3153a4887af680408c71d491836a19c37c
MD5 hash:
dbca39688d4e49088d1932e466ad599b
SHA1 hash:
b96283268310f82b49ee303f8c94be938d03867b
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8c4dc1b7-a63b-4c78-a736-0be23c9098f7/
SH256 hash:
e8c0cee9c208241af5c9f6cab295854469ebb54b63aad77fcd614e03baad24ca
MD5 hash:
a848ef808bbf6e1fb471794ed1726726
SHA1 hash:
41c7dd70cc0a1c0d0a179cae09bcbda816644dbf
Link:
https://www.unpac.me/results/8c4dc1b7-a63b-4c78-a736-0be23c9098f7/
SH256 hash:
3da80bd8e18bf2ef5e28f5e2e0d2095b0d4e65391800ce18f9a18859d7beb220
MD5 hash:
5dbed7594d4c8d71c1882692e6776bf0
SHA1 hash:
8552a2f2afca501945fe57c1875970b6f777f709
Link:
https://www.unpac.me/results/8c4dc1b7-a63b-4c78-a736-0be23c9098f7/
SH256 hash:
f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff
MD5 hash:
36391308af39ab00d41da175c979ec35
SHA1 hash:
dd1c13afa2d51bb57de8aae7908754668866cea0
Link:
https://www.unpac.me/results/8c4dc1b7-a63b-4c78-a736-0be23c9098f7/
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/f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff

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: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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe f273c9ca878fa221f33211fc6bcb019fa244c62dce485dfdc11df4770414e5ff

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/153737/

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