MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd. 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: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd
SHA3-384 hash: 701d055adfe651b1b053467283ce1d21f9273c4ba2ea33cd2e57d38e97d31a0e8f2f815c2c3cf3064f78a5bf7746196c
SHA1 hash: e5f939a05d817a4b56ef7ec74788ad9ce3b8cb27
MD5 hash: 4e1e0180c5e140946d7970f64e644ac1
humanhash: fifteen-lion-fifteen-may
File name:Purchase order.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'730'048 bytes
First seen:2024-04-03 15:56:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e721dea227082ce606ccc9598b4fe550 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
ssdeep 49152:ay6imwGhfj4GBT2z95Zw/L+gwnz1nwyuPTh:azimw4f8iSuD+g
Threatray 1'953 similar samples on MalwareBazaar
TLSH T12B85E0AAF29045BFC0421AF45F7A8EFB40B77C303D64611BA9CC7E5C4BB63922906597
TrID 36.1% (.SCR) Windows screen saver (13097/50/3)
29.0% (.EXE) Win64 Executable (generic) (10523/12/4)
12.4% (.EXE) Win32 Executable (generic) (4504/4/1)
5.7% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e0cb898333052b83 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
328
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd.exe
Verdict:
Malicious activity
Analysis date:
2024-04-03 16:03:54 UTC
Tags:
dbatloader rat remcos remote stealer
Link:
https://app.any.run/tasks/096d75bd-c0e7-4e0a-8fdb-e926bbce5749

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
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Searching for the window
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:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint keylogger masquerade packed remcos
Link:
https://www.filescan.io/uploads/660d7c52ec04992a87d9dd3d/reports/047b6f75-873a-4b73-af2d-e24ce71ee97f/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd
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:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d0e8dc0-7e8a-444c-9f3a-9b7db96ce7d7
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/1419618
Signature
Adds a directory exclusion to Windows Defender
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)
Drops executables to the windows directory (C:\Windows) and starts them
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
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: TrustedPath UAC Bypass Pattern
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: 1419618 Sample: Purchase order.exe Startdate: 03/04/2024 Architecture: WINDOWS Score: 100 54 africarem.duckdns.org 2->54 56 ip.3002.filemail.com 2->56 58 2 other IPs or domains 2->58 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 80 Antivirus detection for URL or domain 2->80 84 23 other signatures 2->84 12 Purchase order.exe 4 19 2->12         started        signatures3 82 Uses dynamic DNS services 54->82 process4 dnsIp5 60 africarem.duckdns.org 23.95.235.30, 49712, 49715, 54991 AS-COLOCROSSINGUS United States 12->60 62 127.0.0.1 unknown unknown 12->62 64 2 other IPs or domains 12->64 48 C:\Windows \System32\netutils.dll, PE32+ 12->48 dropped 50 C:\Windows \System32\4131731.exe, PE32+ 12->50 dropped 52 C:\Users\Public\Hmzvinyr.url, MS 12->52 dropped 88 Detected Remcos RAT 12->88 90 Maps a DLL or memory area into another process 12->90 92 Sample uses process hollowing technique 12->92 17 cmd.exe 1 12->17         started        20 Purchase order.exe 1 12->20         started        22 Purchase order.exe 1 12->22         started        24 5 other processes 12->24 file6 signatures7 process8 signatures9 66 Drops executables to the windows directory (C:\Windows) and starts them 17->66 26 4131731.exe 17->26         started        28 conhost.exe 17->28         started        68 Tries to steal Instant Messenger accounts or passwords 20->68 70 Tries to harvest and steal browser information (history, passwords, etc) 20->70 72 Tries to steal Mail credentials (via file / registry access) 22->72 30 conhost.exe 24->30         started        32 conhost.exe 24->32         started        process10 process11 34 cmd.exe 1 26->34         started        signatures12 74 Adds a directory exclusion to Windows Defender 34->74 37 cmd.exe 1 34->37         started        40 conhost.exe 34->40         started        process13 signatures14 86 Adds a directory exclusion to Windows Defender 37->86 42 powershell.exe 23 37->42         started        44 conhost.exe 37->44         started        process15 process16 46 WmiPrvSE.exe 42->46         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd/
Threat name:
Win32.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2024-04-03 00:33:28 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ueek5c6wtleexsg5l6t33o3o76onmwtqyfswpyhtnwxb6foqsd6q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0b1de06a47161f219d3f4594a659498fc2a80f92fd732c8a612da503fa63249f
RemcosRAT
39b4aba5e8641981ee7c36537c71403e038895c5699f172498fb99f51f994b85
RemcosRAT
4d02ef98d7fec3d3e752706c11c9a57130dba4b03022f85e12e7214fc92622bc
RemcosRAT
7d75d4b4861ce4669ee9245e8ee7c141eb9b9f56fb6fdcabf9a295ff36498a47
RemcosRAT
7d9bee4647aad795531feb6eb3dabe03a3244493c489759bbccedfecb2d11f33
RemcosRAT
a932316f192e4a8d361857aa3555cd6597b96364e9ce1fa379e419b8dd437edc
RemcosRAT
c7e18524730d00ad96155cb54beca97cc658f8bd94f736ef7671eadacd3ebee6
RemcosRAT
+ 1'943 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/240403-tdxdrsfc71/
Behaviour
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:
a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd
MD5 hash:
4e1e0180c5e140946d7970f64e644ac1
SHA1 hash:
e5f939a05d817a4b56ef7ec74788ad9ce3b8cb27
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/fe49e3e8-b002-4439-ac0b-06bdf28a35ee/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a108ae8bd69a/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/a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd

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 a108ae8bd69ac84bc8dd5fa7bdbb6eff9cd65a70c16567e0f36dae1f15d090fd

(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::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