MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955. 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: 19


Intelligence 19 IOCs YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955
SHA3-384 hash: 36d30a0c0a9d53688b70f2e62df94b68e74699bc4dcfa1a058183f3dba9dd42783c96a2bfbeaa90fcdf9b1872320db6d
SHA1 hash: a31d5650c010c421fa81733e4841cf1b52d607d9
MD5 hash: ebf341ab1088ab009a9f9cf06619e616
humanhash: lactose-two-magnesium-artist
File name:ApiUpdater.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:480'768 bytes
First seen:2025-01-24 07:00:06 UTC
Last seen:2025-02-04 05:51:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d354883fe6f15fcf48045037a99fb7a (118 x RemcosRAT)
ssdeep 12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSin9:uiLJbpI7I2WhQqZ7i9
TLSH T157A4AE02BAD2C072D57161344D2AE735DABDBD202835997BB3E61D5BFD30180A73A7B2
TrID 32.2% (.EXE) Win64 Executable (generic) (10522/11/4)
20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
13.7% (.EXE) Win32 Executable (generic) (4504/4/1)
6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
File icon (PE):PE icon
dhash icon c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter lontze7
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
484
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.zip
Verdict:
Malicious activity
Analysis date:
2025-01-24 10:00:40 UTC
Tags:
arch-exec remcos rat
Link:
https://app.any.run/tasks/abeba10e-a43d-4047-a0e6-f6d1cc29dccc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Trojan.Remcos-9841897-0
Create hunting rule

Win.Trojan.Remcos-10002580-0
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Launching cmd.exe command interpreter
Creating a file
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Running batch commands
Connection attempt to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Blocking the User Account Control
Query of malicious DNS domain
Enabling autorun
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd config-extracted crypto evasive eventvwr fingerprint keylogger lolbin microsoft_visual_cc packed rat remcos remcos windows
Link:
https://www.filescan.io/uploads/67933ab1f0727268592c2f4f/reports/5ec7c408-d915-4257-9026-1897e7c215e7/overview
Verdict:
Malicious
Labled as:
Dacic.A9349469.A.Generic
Link:
https://www.hybrid-analysis.com/sample/7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e28fdd8a-bbcb-49f6-86e2-afc5cfe607f5
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1598389
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates an undocumented autostart registry key
Delayed program exit found
Deletes itself after installation
Detected Remcos RAT
Disables UAC (registry)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Uses cmd line tools excessively to alter registry or file data
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1598389 Sample: ApiUpdater.exe Startdate: 24/01/2025 Architecture: WINDOWS Score: 100 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 Antivirus detection for URL or domain 2->77 79 15 other signatures 2->79 9 ApiUpdater.exe 6 5 2->9         started        13 $77-Bitdefender.exe 1 1 2->13         started        15 $77-Bitdefender.exe 1 1 2->15         started        17 $77-Bitdefender.exe 1 1 2->17         started        process3 file4 67 C:\ProgramData\...\$77-Bitdefender.exe, PE32 9->67 dropped 69 C:\Users\user\AppData\Local\...\install.vbs, data 9->69 dropped 71 C:\...\$77-Bitdefender.exe:Zone.Identifier, ASCII 9->71 dropped 99 Detected Remcos RAT 9->99 101 Creates an undocumented autostart registry key 9->101 103 Contains functionalty to change the wallpaper 9->103 109 5 other signatures 9->109 19 wscript.exe 1 9->19         started        22 cmd.exe 1 9->22         started        36 2 other processes 9->36 105 Writes to foreign memory regions 13->105 107 Maps a DLL or memory area into another process 13->107 24 cmd.exe 13->24         started        26 iexplore.exe 13->26         started        28 cmd.exe 1 15->28         started        30 iexplore.exe 15->30         started        32 cmd.exe 17->32         started        34 iexplore.exe 17->34         started        signatures5 process6 signatures7 81 Deletes itself after installation 19->81 83 Windows Scripting host queries suspicious COM object (likely to drop second stage) 19->83 38 cmd.exe 1 19->38         started        85 Uses cmd line tools excessively to alter registry or file data 22->85 40 reg.exe 1 22->40         started        43 conhost.exe 22->43         started        45 conhost.exe 24->45         started        47 reg.exe 1 24->47         started        49 conhost.exe 28->49         started        51 reg.exe 1 28->51         started        53 conhost.exe 32->53         started        55 reg.exe 1 32->55         started        87 Detected Remcos RAT 34->87 process8 signatures9 57 $77-Bitdefender.exe 2 1 38->57         started        60 conhost.exe 38->60         started        89 Disables UAC (registry) 40->89 process10 signatures11 91 Antivirus detection for dropped file 57->91 93 Multi AV Scanner detection for dropped file 57->93 95 Detected Remcos RAT 57->95 97 8 other signatures 57->97 62 iexplore.exe 57->62         started        65 cmd.exe 57->65         started        process12 signatures13 111 Detected Remcos RAT 62->111 113 Uses cmd line tools excessively to alter registry or file data 65->113
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-11-24 10:34:08 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
34 of 38 (89.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oqrlyldx44gc5egcpubque7lhlpqxt6b54v4kw3cq4iydl243fkq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost defense_evasion discovery persistence rat trojan
Link:
https://tria.ge/reports/250124-hs7x9swkhw/
Behaviour
Modifies registry class
Modifies registry key
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Adds policy Run key to start application
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
else-directors.gl.at.ply.gg:56448
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos
Link:
https://app.threat.zone/submission/687a01a8-f0ed-42c4-9e03-150e4583b34c
Unpacked files
SH256 hash:
7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955
MD5 hash:
ebf341ab1088ab009a9f9cf06619e616
SHA1 hash:
a31d5650c010c421fa81733e4841cf1b52d607d9
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
Link:
https://www.unpac.me/results/6a0a1284-393c-4751-aa48-a5a3b75b0a6b/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7422bc2c77e7/report/overview.html
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/7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955

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
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Web download

RemcosRAT

Executable exe 7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3412252/

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 (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::mciSendStringA
WINMM.dll::mciSendStringW
WINMM.dll::PlaySoundW
WINMM.dll::waveInAddBuffer
WINMM.dll::waveInClose
WINMM.dll::waveInOpen
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::ShellExecuteW
URL_MONIKERS_APICan Download & Execute componentsurlmon.dll::URLDownloadToFileW
urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueA
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptGenRandom
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyA
ADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::ControlService
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenSCManagerA
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::OpenClipboard
USER32.dll::CreateWindowExA

Comments