MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 887f9a9f4e597abc89d7e59d68d953428c2e3122ef6e5414249a25c14fcddb9b. 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: 887f9a9f4e597abc89d7e59d68d953428c2e3122ef6e5414249a25c14fcddb9b
SHA3-384 hash: 2b256810319f1357bda357d75369c89a9ae507dc08ea825f79dd530349c251c8c39cd40c38394313bb6e2e4bfabe055f
SHA1 hash: a43046e596e61e8b86611ab5be87cd2074079cc1
MD5 hash: b79f729d8a879b47786e341db7746589
humanhash: cat-massachusetts-kentucky-neptune
File name:Factura Serfinanza_014002518387_865731_288692486197757359720_5813890_6410498422405372_065852280_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:5'183'488 bytes
First seen:2021-05-25 06:22:40 UTC
Last seen:2021-05-25 07:04:45 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 6144:DIfFG15+7mhiwmpIBB2PG7GItRhCzNEshpTwgGD2ESrayFYdILx7gsF4DurVu4Y9:p1D
Threatray 255 similar samples on MalwareBazaar
TLSH B3369CA5D719337F18A4A467AE5F865344DB2AB06F064E1FD15FEEF4B022621D2C3232
Reporter abuse_ch
Tags:ESP exe geo RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
151
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Factura Serfinanza_014002518387_865731_288692486197757359720_5813890_6410498422405372_065852280_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-25 06:34:48 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/a237bd1e-85b7-4b32-aae7-b81c9881d96d

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/161664/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.3098.10331.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
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
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file
Launching cmd.exe command interpreter
Creating a window
Running batch commands
DNS request
Setting a keyboard event handler
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Unauthorized injection to a recently created process by context flags manipulation
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/791196
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 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
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 423595 Sample: 2280_pdf.exe Startdate: 25/05/2021 Architecture: WINDOWS Score: 100 80 Multi AV Scanner detection for domain / URL 2->80 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 8 other signatures 2->86 10 2280_pdf.exe 6 7 2->10         started        14 PxxoServicesTrialNet48.exe 2->14         started        16 PxxoServicesTrialNet48.exe 2->16         started        process3 file4 70 C:\Users\user\AppData\...\2280_pdf.exe.log, ASCII 10->70 dropped 72 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 10->72 dropped 96 Contains functionality to steal Chrome passwords or cookies 10->96 98 Contains functionality to inject code into remote processes 10->98 100 Adds a directory exclusion to Windows Defender 10->100 104 2 other signatures 10->104 18 2280_pdf.exe 10->18         started        21 powershell.exe 26 10->21         started        23 AdvancedRun.exe 1 10->23         started        25 2280_pdf.exe 10->25         started        74 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 14->74 dropped 102 Injects a PE file into a foreign processes 14->102 27 AdvancedRun.exe 14->27         started        29 powershell.exe 14->29         started        76 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 16->76 dropped 31 AdvancedRun.exe 16->31         started        signatures5 process6 file7 62 C:\Users\user\...\PxxoServicesTrialNet48.exe, PE32 18->62 dropped 64 PxxoServicesTrialN...exe:Zone.Identifier, ASCII 18->64 dropped 66 C:\Users\user\AppData\Local\...\install.vbs, data 18->66 dropped 33 wscript.exe 18->33         started        36 cmd.exe 18->36         started        38 conhost.exe 21->38         started        40 AdvancedRun.exe 23->40         started        42 AdvancedRun.exe 27->42         started        44 conhost.exe 29->44         started        process8 dnsIp9 78 192.168.2.1 unknown unknown 33->78 46 cmd.exe 33->46         started        48 conhost.exe 36->48         started        50 reg.exe 36->50         started        process10 process11 52 PxxoServicesTrialNet48.exe 46->52         started        56 conhost.exe 46->56         started        file12 68 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 52->68 dropped 88 Multi AV Scanner detection for dropped file 52->88 90 Machine Learning detection for dropped file 52->90 92 Writes to foreign memory regions 52->92 94 2 other signatures 52->94 58 AdvancedRun.exe 52->58         started        60 conhost.exe 52->60         started        signatures13 process14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/887f9a9f4e597abc89d7e59d68d953428c2e3122ef6e5414249a25c14fcddb9b/
Threat name:
ByteCode-MSIL.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-05-25 06:23:11 UTC
AV detection:
7 of 47 (14.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rb7zvh2olf5lzcox4wowrwktikgc4mjc55xfifbetis4ct6n3onq._file
Verdict:
malicious
Similar samples:
0db50b639d859d3ddf9aa74f96d12f7ecb189a0b3006a7ed1cfd73edbc34d220
RemcosRAT
1689d0006367c0a87e65596e1f7465b54bd624dc96c8d8169e46a833bb1b1e41
RemcosRAT
2e10edfbe7c4a7c9220db55d3c6f921262366908277a5483ff0faf5579e194f4
RemcosRAT
78baec19444d923fde30977dacb85fada9247b9e3ae150f32a1137e7fc0b8dfb
RemcosRAT
9c6abdf1e5ff719e261ea153555b981cd907ba5f79f50943d679d59967eba445
RemcosRAT
ae6d4b4b89654fbd35c69c05a85fd4a2b84edd7091ffe372f4ba7115c2b8fbf8
RemcosRAT
c3528956666ac901c406c13e9b265cb805424e91919db91a1fe2227ffbc15c7a
RemcosRAT
c7ce97bf28191b9f81871421f7f6fea0c86fca516d3e8706e16c0f07e9e7ed5b
RemcosRAT
ca146513d9ec6ec60b81b20fd9aa2f262c54d447e8361417c3c4b7678e51e6a5
RemcosRAT
e9573722d616d444c71e82f1ac6973921f3c942af4403760e0292b3ebf9159b0
RemcosRAT
+ 245 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/210525-v1441pwvee/
Behaviour
Modifies registry class
Modifies registry key
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
UAC bypass
Windows security bypass
Malware Config
C2 Extraction:
databasepropersonombrecomercialideasearchwords.services:3522
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/887f9a9f4e597abc89d7e59d68d953428c2e3122ef6e5414249a25c14fcddb9b

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.

Cape
Cape
https://www.capesandbox.com/analysis/161664/

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