MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b
SHA3-384 hash: 98824c12d113271e025e83d98443ab7a73ae16d9722dd11caad39f2b4edb5b522e41500642994bd024413dd36916dbb8
SHA1 hash: 7929ca3c381c8dcc2150bc67fa3103683f3462d1
MD5 hash: 72ed9abaa34354c10351df66336b49d9
humanhash: kilo-thirteen-march-wisconsin
File name:test.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'678'614 bytes
First seen:2024-05-28 06:18:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a23b267d3c27d78228e9d8a9833617e0 (1 x RemcosRAT, 1 x XWorm)
ssdeep 98304:5Px1VDTzCQW4klxCc6u9UvVds/JZoA3QBS5wtSFKmS7tqEphckJwCWUz82tQ2jiu:JxHDx8Yc6u9OzinoA3acKsEphtJwCWUJ
TLSH T19B26027267A420B9D1F98376D1848132FE79790DB324657989E4562C1FBBF3622BF308
TrID 72.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
2.5% (.EXE) OS/2 Executable (generic) (2029/13)
2.5% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon 1c80014c4c5e8014 (10 x AgentTesla, 2 x RemcosRAT, 2 x RedLineStealer)
Reporter lontze7
Tags:exe Penguish RemcosRAT


Avatar
lontze7
Downloaded from http://148.113.165.11/pdf/1[.]exe.

Intelligence

File Origin
# of uploads :
1
# of downloads :
340
Origin country :
GR GR
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=665577585721c8e527178030win10vpnfull_triage
Tags:
Encryption Execution Network Static Stealth Trojan
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the Windows subdirectories
Creating a process from a recently created file
Creating a window
Creating a file
Searching for the window
Launching cmd.exe command interpreter
Connection attempt
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
CAB crypto expand fingerprint installer lolbin overlay packed runonce shell32
Link:
https://www.filescan.io/uploads/6655771c44f31172b37e0668/reports/685ea4e7-8725-4fb3-9692-4154e90852ee/overview
Verdict:
Malicious
Labled as:
Trojan.Penguish
Link:
https://www.hybrid-analysis.com/sample/a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b
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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/dee4cc34-2705-4bf9-a3cb-cd67e5a0da06
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1448292
Signature
AI detected suspicious sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Injects code into the Windows Explorer (explorer.exe)
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1448292 Sample: test.exe Startdate: 28/05/2024 Architecture: WINDOWS Score: 100 67 Found malware configuration 2->67 69 Malicious sample detected (through community Yara rule) 2->69 71 Antivirus detection for dropped file 2->71 73 5 other signatures 2->73 10 test.exe 8 2->10         started        13 convert.exe 2 2->13         started        process3 file4 61 C:\Windows\Temp\...\test.exe, PE32+ 10->61 dropped 16 test.exe 15 10->16         started        91 Maps a DLL or memory area into another process 13->91 93 Found direct / indirect Syscall (likely to bypass EDR) 13->93 19 cmd.exe 13->19         started        22 conhost.exe 1 13->22         started        signatures5 process6 file7 47 C:\Windows\Temp\...\vcomp100.dll, PE32 16->47 dropped 49 C:\Windows\Temp\...\convert.exe, PE32 16->49 dropped 51 C:\Windows\Temp\...spial.dll, PE32+ 16->51 dropped 24 convert.exe 6 16->24         started        53 C:\Users\user\AppData\Local\Temp\aarvse, PE32 19->53 dropped 75 Injects code into the Windows Explorer (explorer.exe) 19->75 77 Writes to foreign memory regions 19->77 79 Maps a DLL or memory area into another process 19->79 28 conhost.exe 19->28         started        30 explorer.exe 19->30         started        signatures8 process9 file10 57 C:\Users\user\MY_Debug\vcomp100.dll, PE32 24->57 dropped 59 C:\Users\user\MY_Debug\convert.exe, PE32 24->59 dropped 89 Found direct / indirect Syscall (likely to bypass EDR) 24->89 32 convert.exe 2 24->32         started        35 conhost.exe 24->35         started        signatures11 process12 signatures13 63 Maps a DLL or memory area into another process 32->63 65 Found direct / indirect Syscall (likely to bypass EDR) 32->65 37 cmd.exe 4 32->37         started        41 conhost.exe 32->41         started        process14 file15 55 C:\Users\user\AppData\Local\Temp\ytb, PE32 37->55 dropped 81 Injects code into the Windows Explorer (explorer.exe) 37->81 83 Writes to foreign memory regions 37->83 85 Found hidden mapped module (file has been removed from disk) 37->85 87 Maps a DLL or memory area into another process 37->87 43 conhost.exe 37->43         started        45 explorer.exe 37->45         started        signatures16 process17
Score:
15%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-05-28 06:19:05 UTC
File Type:
PE+ (Exe)
Extracted files:
35
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcgpej7w76sc2nugfcidcnqe2wyjmvqurkil4q3m76bbas7g36fq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:newport2 rat
Link:
https://tria.ge/reports/240528-g2lkysha8s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
148.113.165.11:81
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c6f8c27a-5429-452d-ab73-5ce76ffc6eb3
Unpacked files
SH256 hash:
f048f85eebd0a4fcc41dd80a5785d89fa4dcd645889c3117af6d9dde27311702
MD5 hash:
6e3a29939b1600b545e59ed8a0bb0f51
SHA1 hash:
e65f163d0fcce517a98b3c114013a89f4e3a0ae2
Link:
https://www.unpac.me/results/1c5f0416-e6ce-4405-a0cf-05422b493fc2/
SH256 hash:
db2457caa1ccd65e63718b9e28789a12e17bc7a038975fba4f07dcd9f38e7016
MD5 hash:
9d8649afd4141d960b6545998fbc423b
SHA1 hash:
3ddd700caaebab0a9d2ed640f235d4b716a505de
Link:
https://www.unpac.me/results/1c5f0416-e6ce-4405-a0cf-05422b493fc2/
SH256 hash:
5a5e1142b50096e3af0f9079c45c84f8a6ca1be60e45dbc489327a2632d73fd5
MD5 hash:
b53762fc54289fd50b961858f6bbeaf8
SHA1 hash:
1565ee6dce2f756f75981453643fe9ea92154304
Link:
https://www.unpac.me/results/1c5f0416-e6ce-4405-a0cf-05422b493fc2/
SH256 hash:
a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b
MD5 hash:
72ed9abaa34354c10351df66336b49d9
SHA1 hash:
7929ca3c381c8dcc2150bc67fa3103683f3462d1
Link:
https://www.unpac.me/results/1c5f0416-e6ce-4405-a0cf-05422b493fc2/
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/a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

RemcosRAT

Executable exe a88cf227f6ffa42d36862890313604d5b09656148a90be436cff82104be6df8b

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2866319/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (FORCE_INTEGRITY)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
ADVAPI32.dll::CreateWellKnownSid
ADVAPI32.dll::SetEntriesInAclW
ADVAPI32.dll::SetEntriesInAclA
ADVAPI32.dll::SetNamedSecurityInfoW
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoInitializeSecurity
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::IsWellKnownSid
ADVAPI32.dll::SetSecurityDescriptorDacl
ADVAPI32.dll::SetSecurityDescriptorGroup
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::SetProcessShutdownParameters
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt FilesADVAPI32.dll::DecryptFileW
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptGetHashParam
ADVAPI32.dll::CryptHashData
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
ADVAPI32.dll::QueryServiceStatus
WIN_USER_APIPerforms GUI ActionsUSER32.dll::CreateWindowExW

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