MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57. 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: 16


Intelligence 16 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57
SHA3-384 hash: d659b7e405d0c8d379a038c7d2739929c5fd269286d0cb79f57fc974cdb14ed30a7b97b2044b0e2467170664fdc589e3
SHA1 hash: 64ee8d2ebf84a3930c5d91c87c3908ac27fbb44e
MD5 hash: 705d73d4166016b0f796cebcfeaaf193
humanhash: twelve-apart-delaware-paris
File name:Purchase order.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'639'424 bytes
First seen:2024-04-22 07:31:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 55bb4abe492867a8202968458cfd638d (3 x RemcosRAT, 2 x DBatLoader)
ssdeep 24576:7MkT4gLKu9KKozJQd/HJNRO/BCM6wIJp4m+3bu8U2flxAv:QkTpT9K1mzyCM6wW4mEQ2W
Threatray 740 similar samples on MalwareBazaar
TLSH T1BF75C051B391D1B3F03B04FFD53AB16862C5BAA4296334DCB2D50A7BDE37983258924E
TrID 28.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
26.2% (.SCR) Windows screen saver (13097/50/3)
20.0% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2)
9.0% (.EXE) Win32 Executable (generic) (4504/4/1)
4.1% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 70f4f4a8b0b4ccd8 (4 x RemcosRAT, 2 x DBatLoader)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
518
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57.zip
Verdict:
Malicious activity
Analysis date:
2024-04-22 10:06:29 UTC
Tags:
dbatloader rat remcos remote stealer
Link:
https://app.any.run/tasks/7d90230c-abf0-46a9-8789-5b0bbb18d117

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Launching a process
Sending an HTTP GET request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Reading critical registry keys
Creating a file in the %temp% directory
Moving a file to the Program Files subdirectory
Replacing files
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint keylogger masquerade packed
Link:
https://www.filescan.io/uploads/6626127354bafb7d21d88034/reports/2f1ae564-7e9a-4247-8932-56420058e31a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57
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/84a8aa3e-7389-4d2c-99c3-be6282e59f2a
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429497
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
PE file contains section with special chars
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Remcos
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1429497 Sample: Purchase order.exe Startdate: 22/04/2024 Architecture: WINDOWS Score: 100 30 africarem.duckdns.org 2->30 32 ip.2014.filemail.com 2->32 34 2 other IPs or domains 2->34 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Antivirus detection for URL or domain 2->46 50 22 other signatures 2->50 8 Purchase order.exe 4 20 2->8         started        signatures3 48 Uses dynamic DNS services 30->48 process4 dnsIp5 36 africarem.duckdns.org 23.95.235.30, 49708, 49709, 54991 AS-COLOCROSSINGUS United States 8->36 38 127.0.0.1 unknown unknown 8->38 40 2 other IPs or domains 8->40 24 C:\Users\Public\Libraries\netutils.dll, PE32+ 8->24 dropped 26 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 8->26 dropped 28 C:\Users\Publickktdzbe.url, MS 8->28 dropped 52 Detected Remcos RAT 8->52 54 Maps a DLL or memory area into another process 8->54 13 Purchase order.exe 1 8->13         started        16 Purchase order.exe 1 8->16         started        18 Purchase order.exe 2 8->18         started        20 2 other processes 8->20 file6 signatures7 process8 signatures9 56 Tries to steal Instant Messenger accounts or passwords 13->56 58 Tries to harvest and steal browser information (history, passwords, etc) 13->58 60 Tries to steal Mail credentials (via file / registry access) 16->60 22 conhost.exe 20->22         started        process10
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 00:58:30 UTC
File Type:
PE (Exe)
Extracted files:
29
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=knyb7fcrsar2qa5idi2pydxqqf3nxwi7hk2fzce6dtry2vmizjlq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1aedcb18ce4460c5eecd34016cb42308b2f8ac1ddc51fb265b45200116a19de9
RemcosRAT
49a98a42ff6fff1b7dae074cb3c325ba9df2183dceb69feae6c0e7322ac94eb2
RemcosRAT
4d02ef98d7fec3d3e752706c11c9a57130dba4b03022f85e12e7214fc92622bc
RemcosRAT
53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57
RemcosRAT
985dda76570c9efdd692eca4a7bef55c99cbcac5ae7683360c115ea5529ebaa5
RemcosRAT
a932316f192e4a8d361857aa3555cd6597b96364e9ce1fa379e419b8dd437edc
RemcosRAT
fe0cbe46b1c846b98e6e7bc36fc46aac22d50e82aa1aecfebca6769be007a575
RemcosRAT
+ 730 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost collection persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240422-jcyv4agh73/
Behaviour
Enumerates system info in registry
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:44999
127.0.0.1:54991
africarem.duckdns.org:54991
africarem.duckdns.org:44999
Unpacked files
SH256 hash:
7cf797c22d33e5e43cab697d395bc847560b88f2d49a59bc144999f975d268f5
MD5 hash:
5f8c8dcb2c949915ad0a49416b005f02
SHA1 hash:
e533d89d721c48a02524f94ea3e4b688e19c89d5
Link:
https://www.unpac.me/results/b30fa96a-70c5-4bce-ac7b-fe4d21634984/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/b30fa96a-70c5-4bce-ac7b-fe4d21634984/
SH256 hash:
53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57
MD5 hash:
705d73d4166016b0f796cebcfeaaf193
SHA1 hash:
64ee8d2ebf84a3930c5d91c87c3908ac27fbb44e
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/b30fa96a-70c5-4bce-ac7b-fe4d21634984/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/53701f945190/report/overview.html
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
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:shellcode
Create hunting rule
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.

Malspam

RemcosRAT

Executable exe 53701f94519023a803a81a34fc0ef08176dbd91f3ab45c889e1ce38d5588ca57

(this sample)

  
Delivery method
Distributed via e-mail attachment

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::GetSystemInfo
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::CreateWindowExA

Comments