MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c59da5938f667c04ca2ba3639b6cb3d5813fc189d4b2f412613b4bfa36ae0664. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments

SHA256 hash: c59da5938f667c04ca2ba3639b6cb3d5813fc189d4b2f412613b4bfa36ae0664
SHA3-384 hash: bf7c280097b293344b8b1f5e0693a483248c6175bf36a97fa6e4ed50d0d115ddbf008bdca271f2cd29b863d45cf86983
SHA1 hash: 84e0e1e9371b52e6682303fc11b02b69a3df782d
MD5 hash: d2d166937422f379e6dd15041d83af21
humanhash: zulu-pizza-lamp-bakerloo
File name:d2d166937422f379e6dd15041d83af21.exe
Download: download sample
Signature RemcosRAT
File size:1'691'648 bytes
First seen:2024-09-22 14:51:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e64daf69e8e4577f3613fe9a6f2b519 (1 x RemcosRAT)
ssdeep 24576:mZGjH3HfO7fC0Nj3+8OioUMxW24Q7Q9p+Lz:mUrwP+8OiSWaOp+Lz
Threatray 30 similar samples on MalwareBazaar
TLSH T19375F4F1DDEB4063D13D153848579E94373F7A2229F4387722A7244EFEB6186A03AC5A
TrID 29.9% (.EXE) Win32 Executable Delphi generic (14182/79/4)
22.2% (.EXE) Win64 Executable (generic) (10523/12/4)
21.1% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
9.5% (.EXE) Win32 Executable (generic) (4504/4/1)
4.3% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
File icon (PE):PE icon
dhash icon 2c4d0e8e4deab4aa (1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
418
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
d2d166937422f379e6dd15041d83af21.exe
Verdict:
Malicious activity
Analysis date:
2024-09-22 14:55:09 UTC
Tags:
rat remcos remote evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
Discovery Execution Generic Infostealer Network Static Stealth Monitor Emotet Sage
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
borland_delphi fingerprint keylogger lolbin shell32
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.
Result
Threat name:
Remcos, DBatLoader
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Delayed program exit found
Detected Remcos RAT
Drops or copies cmd.exe with a different name (likely to bypass HIPS)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Early bird code injection technique detected
Found malware configuration
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Uses dynamic DNS services
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1515390 Sample: ZPujMIT7Vs.exe Startdate: 22/09/2024 Architecture: WINDOWS Score: 100 56 apostlejob2.duckdns.org 2->56 58 maan2u.com 2->58 60 geoplugin.net 2->60 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 72 11 other signatures 2->72 8 ZPujMIT7Vs.exe 1 6 2->8         started        13 Tbnansag.PIF 2->13         started        15 Tbnansag.PIF 2->15         started        signatures3 70 Uses dynamic DNS services 56->70 process4 dnsIp5 62 maan2u.com 112.137.173.77, 443, 49730, 49731 TMVADS-APTM-VADSDCHostingMY Malaysia 8->62 44 C:\Users\Public\Tbnansag.url, MS 8->44 dropped 46 C:\Users\Public\Libraries\Tbnansag, data 8->46 dropped 82 Early bird code injection technique detected 8->82 84 Allocates memory in foreign processes 8->84 86 Allocates many large memory junks 8->86 90 2 other signatures 8->90 17 SndVol.exe 3 16 8->17         started        22 cmd.exe 1 8->22         started        24 esentutl.exe 2 8->24         started        88 Multi AV Scanner detection for dropped file 13->88 26 SndVol.exe 13->26         started        28 colorcpl.exe 15->28         started        file6 signatures7 process8 dnsIp9 52 apostlejob2.duckdns.org 192.161.184.44, 2468, 49732 ASN-QUADRANET-GLOBALUS United States 17->52 54 geoplugin.net 178.237.33.50, 49733, 80 ATOM86-ASATOM86NL Netherlands 17->54 40 C:\ProgramData\remcos\logs.dat, data 17->40 dropped 74 Contains functionality to bypass UAC (CMSTPLUA) 17->74 76 Detected Remcos RAT 17->76 78 Contains functionalty to change the wallpaper 17->78 80 5 other signatures 17->80 30 esentutl.exe 2 22->30         started        34 esentutl.exe 2 22->34         started        36 conhost.exe 22->36         started        42 C:\Users\Public\Libraries\Tbnansag.PIF, PE32 24->42 dropped 38 conhost.exe 24->38         started        file10 signatures11 process12 file13 48 C:\Users\Public\alpha.pif, PE32 30->48 dropped 92 Drops PE files to the user root directory 30->92 94 Drops PE files with a suspicious file extension 30->94 96 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 30->96 50 C:\Users\Public\xpha.pif, PE32 34->50 dropped signatures14
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2024-09-12 19:43:18 UTC
File Type:
PE (Exe)
Extracted files:
51
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Result
Malware family:
modiloader
Score:
  10/10
Tags:
family:modiloader discovery trojan
Behaviour
Script User-Agent
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
ModiLoader Second Stage
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
f97921fe0b68f4ccc83705dc7f15beeb2eef4977da886caf96f4a1a7840c985c
MD5 hash:
677a9f03ffa0f69d16d9ffebecd4588a
SHA1 hash:
e4fef1443f685ac718670bcf66b1e52102d7c52e
Detections:
Typical_Malware_String_Transforms
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
SH256 hash:
0db4d3ffdb96d13cf3b427af8be66d985728c55ae254e4b67d287797e4c0b323
MD5 hash:
869640d0a3f838694ab4dfea9e2f544d
SHA1 hash:
bdc42b280446ba53624ff23f314aadb861566832
SH256 hash:
c59da5938f667c04ca2ba3639b6cb3d5813fc189d4b2f412613b4bfa36ae0664
MD5 hash:
d2d166937422f379e6dd15041d83af21
SHA1 hash:
84e0e1e9371b52e6682303fc11b02b69a3df782d
Detections:
DbatLoaderStage1
Please note that we are no longer able to provide a coverage score for Virus Total.

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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_detect_tls_callbacks
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns

File information


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

Web download

RemcosRAT

Executable exe c59da5938f667c04ca2ba3639b6cb3d5813fc189d4b2f412613b4bfa36ae0664

(this sample)

  
Delivery method
Distributed via web download

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetVolumeInformationA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

Comments