MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b. 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 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
SHA3-384 hash: 3a581747fcba05f22e89693fdb90c628ada9eeef8a0ea9d9bb5dcab9c26c9bd52a7aee39ff4abf8679f7193831855020
SHA1 hash: aaf7084c369138eb5588051eda8aec9aa3c4ac26
MD5 hash: e5d2981fd9c531b3cfb780cf781bac91
humanhash: mango-eight-one-emma
File name:rORDERCONFIRMATION93892873984883782.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'065'984 bytes
First seen:2024-02-12 11:30:06 UTC
Last seen:2024-02-12 13:29:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 24576:Aazz87bccsW43UyDBU7RCFYK9i3iOpOnC+yqiQDi/DtS:AOz8732BdUCYK9i3X6CPqinDo
Threatray 3'666 similar samples on MalwareBazaar
TLSH T10035E0AC725075EFC857C9768A982C64EA1074BB931BC607A46316ECAE0D9DBCF141F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 9679d4b4a2ec6196 (4 x Formbook, 4 x AgentTesla, 1 x RemcosRAT)
Reporter FXOLabs
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
358
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b.exe
Verdict:
Malicious activity
Analysis date:
2024-02-12 11:32:45 UTC
Tags:
rat remcos remote stealer keylogger
Link:
https://app.any.run/tasks/c04a9be4-dcdf-4e71-972d-8e356d317a6c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/475823/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2511.27149.18833.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Setting a keyboard event handler
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed remcos
Link:
https://www.filescan.io/uploads/65ca017a90a5367ac0c17c97/reports/a6a13825-2385-406f-a637-13c90cde3d21/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
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/b8cc872c-9361-448e-bbbd-8b87bf900bda
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1390706
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 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 unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
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: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
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: 1390706 Sample: rORDERCONFIRMATION938928739... Startdate: 12/02/2024 Architecture: WINDOWS Score: 100 52 geoplugin.net 2->52 64 Found malware configuration 2->64 66 Malicious sample detected (through community Yara rule) 2->66 68 Antivirus detection for URL or domain 2->68 70 13 other signatures 2->70 8 rORDERCONFIRMATION93892873984883782.exe 7 2->8         started        12 bZurkfs.exe 5 2->12         started        signatures3 process4 file5 46 C:\Users\user\AppData\Roaming\bZurkfs.exe, PE32 8->46 dropped 48 C:\Users\user\AppData\Local\...\tmp69DD.tmp, XML 8->48 dropped 72 Detected unpacking (changes PE section rights) 8->72 74 Detected unpacking (overwrites its own PE header) 8->74 76 Tries to steal Mail credentials (via file registry) 8->76 84 2 other signatures 8->84 14 rORDERCONFIRMATION93892873984883782.exe 3 15 8->14         started        19 powershell.exe 21 8->19         started        21 powershell.exe 23 8->21         started        23 schtasks.exe 1 8->23         started        78 Multi AV Scanner detection for dropped file 12->78 80 Contains functionality to bypass UAC (CMSTPLUA) 12->80 82 Contains functionalty to change the wallpaper 12->82 86 6 other signatures 12->86 25 schtasks.exe 12->25         started        27 bZurkfs.exe 12->27         started        signatures6 process7 dnsIp8 54 84.38.132.126, 49702, 49705, 49706 DATACLUBLV Latvia 14->54 56 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 14->56 50 C:\ProgramData\remcos\logs.dat, data 14->50 dropped 58 Tries to harvest and steal browser information (history, passwords, etc) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Installs a global keyboard hook 14->62 29 rORDERCONFIRMATION93892873984883782.exe 14->29         started        32 rORDERCONFIRMATION93892873984883782.exe 14->32         started        34 rORDERCONFIRMATION93892873984883782.exe 14->34         started        36 conhost.exe 19->36         started        38 WmiPrvSE.exe 19->38         started        40 conhost.exe 21->40         started        42 conhost.exe 23->42         started        44 conhost.exe 25->44         started        file9 signatures10 process11 signatures12 88 Tries to steal Instant Messenger accounts or passwords 29->88 90 Tries to steal Mail credentials (via file / registry access) 29->90 92 Tries to harvest and steal browser information (history, passwords, etc) 32->92
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-12 02:51:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g5mozzakjz7557i5oqxgstoinxn5q7y5pc5pz62isngekbrq2efq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f
RemcosRAT
2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744
RemcosRAT
455081f6fed14906ac4cbd035d37910a2d06776371f064e8dd94700f120ed6fd
RemcosRAT
77d2129f3e711b02b280dc1ebbd724abd4091818b49c40a2c984835be121b993
RemcosRAT
8957582ccd1876780ff5a43336984ee23ff03be1c8184a6ff9797828f52536e1
RemcosRAT
c1107b76826b1102ea1f0f2134c036e20ad1d6bce76b35456702511b3e91ac3e
RemcosRAT
d91ca08771428f595ebf33a992eb67424dbead04f10cce8c3c51e283524278d7
RemcosRAT
+ 3'656 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:p2-bin collection rat spyware stealer
Link:
https://tria.ge/reports/240212-nmp36aca7t/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
84.38.132.126:61445
Unpacked files
SH256 hash:
0f485f2ab516fc1312737c63a32ac0efd69dcfde3101a3363041a672cebde836
MD5 hash:
648ec947775a5effd80d8f12372ca6e1
SHA1 hash:
f3549309cb68a74935acb54cc868cd40d55c87be
Link:
https://www.unpac.me/results/bd584b8d-32a9-4ad8-b175-c398f8c3c540/
SH256 hash:
623c1989571b16e4472971ededede276edb52d75652e5fa9c8d915525a6c55ce
MD5 hash:
e4f9a91345875eebcec0f0600c771fa3
SHA1 hash:
a68bde2b6e567c7d06f9d95eddcf9360c3c97487
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/bd584b8d-32a9-4ad8-b175-c398f8c3c540/
Parent samples :
737cedd9e82602536f0b02d2608b856c49b158928de47bb891d401bae810bdc4
3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
SH256 hash:
e0200b0d72cefd0c459e4a938f91e012f6803609cf58eff29ad123a8cc5ce547
MD5 hash:
e19f0ce70df031841dd462ddc3b8c24d
SHA1 hash:
a16e583d1fc56a98926afabaa68fa2dc3f3b48f1
Link:
https://www.unpac.me/results/bd584b8d-32a9-4ad8-b175-c398f8c3c540/
SH256 hash:
3dff12ee9183149386bfb90aa8bb671f57201de4e1157b79dd22fea45d837562
MD5 hash:
02e3968ff81ca78205efb912d981ea81
SHA1 hash:
0846251d2774064940f11617e1b15b2eb63834aa
Link:
https://www.unpac.me/results/bd584b8d-32a9-4ad8-b175-c398f8c3c540/
SH256 hash:
3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b
MD5 hash:
e5d2981fd9c531b3cfb780cf781bac91
SHA1 hash:
aaf7084c369138eb5588051eda8aec9aa3c4ac26
Link:
https://www.unpac.me/results/bd584b8d-32a9-4ad8-b175-c398f8c3c540/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3758ece40a4e/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/3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:TeslaCryptPackedMalware
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
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_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
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe 3758ece40a4e7fdefd1d742e694dc86ddbd87f1d78bafcfb48934c450630d10b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475823/

Comments