MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b
SHA3-384 hash: 994b4989318d4b8750e80b1e1d1dcde634faa2681cecc46cbbb92481283625b20b21eb94701bcb8dfc7934f9d6c0ab3d
SHA1 hash: d410fae43411fc61355fd12b4536756c108dee28
MD5 hash: 8e7aa3950773864da97a49eaff93f7f3
humanhash: yankee-sink-cup-jupiter
File name:SecuriteInfo.com.Win32.PWSX-gen.25969.6427
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:970'240 bytes
First seen:2023-12-04 05:28:51 UTC
Last seen:2023-12-04 14:02:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:i+pJ1RKW++JPKkiRQBsvI2lo1RhP8Sofc8d:tJqW5KkiaMno1Rhk
TLSH T13D2522B3F10ECE9CDD570BB10CAB965102A75E8D8456E50E348D3E6B337274329A2E5B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
344
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.PWSX-gen.25969.6427
Verdict:
Malicious activity
Analysis date:
2023-12-04 05:31:38 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/d7eefc32-2a96-4e19-92a7-9cd37bc40476

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/462227/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.25969.6427.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Restart of the analyzed sample
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/656d639e16b73d863725f6bb/reports/b284fe12-dfd8-4ef9-91fd-27c76772df95/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/782b10d2-89e6-4f86-af8b-af05f24cd23b
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/1352887
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
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 bypass UAC (CMSTPLUA)
Contains functionality to modify clipboard data
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
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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: 1352887 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 04/12/2023 Architecture: WINDOWS Score: 100 54 geoplugin.net 2->54 64 Multi AV Scanner detection for domain / URL 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 70 14 other signatures 2->70 9 SecuriteInfo.com.Win32.PWSX-gen.25969.6427.exe 7 2->9         started        13 hWVmCzNo.exe 5 2->13         started        signatures3 process4 file5 50 C:\Users\user\AppData\Roaming\hWVmCzNo.exe, PE32 9->50 dropped 52 C:\Users\user\AppData\Local\...\tmpF0D8.tmp, XML 9->52 dropped 72 Tries to steal Mail credentials (via file registry) 9->72 74 Uses schtasks.exe or at.exe to add and modify task schedules 9->74 76 Contains functionality to modify clipboard data 9->76 78 Adds a directory exclusion to Windows Defender 9->78 15 SecuriteInfo.com.Win32.PWSX-gen.25969.6427.exe 3 14 9->15         started        19 powershell.exe 22 9->19         started        21 schtasks.exe 1 9->21         started        80 Antivirus detection for dropped file 13->80 82 Multi AV Scanner detection for dropped file 13->82 84 Contains functionality to bypass UAC (CMSTPLUA) 13->84 86 6 other signatures 13->86 23 schtasks.exe 1 13->23         started        25 hWVmCzNo.exe 13->25         started        27 hWVmCzNo.exe 13->27         started        29 hWVmCzNo.exe 13->29         started        signatures6 process7 dnsIp8 56 198.27.121.194, 2024, 49711, 49713 OVHFR Canada 15->56 58 geoplugin.net 178.237.33.50, 49716, 80 ATOM86-ASATOM86NL Netherlands 15->58 60 Tries to harvest and steal browser information (history, passwords, etc) 15->60 62 Maps a DLL or memory area into another process 15->62 31 SecuriteInfo.com.Win32.PWSX-gen.25969.6427.exe 15->31         started        34 SecuriteInfo.com.Win32.PWSX-gen.25969.6427.exe 14 15->34         started        36 SecuriteInfo.com.Win32.PWSX-gen.25969.6427.exe 15->36         started        38 conhost.exe 15->38         started        40 conhost.exe 19->40         started        42 conhost.exe 21->42         started        44 conhost.exe 23->44         started        signatures9 process10 signatures11 88 Tries to steal Instant Messenger accounts or passwords 31->88 90 Tries to steal Mail credentials (via file / registry access) 31->90 92 Tries to harvest and steal browser information (history, passwords, etc) 34->92 46 WerFault.exe 36->46         started        48 WerFault.exe 44->48         started        process12
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-12-04 01:57:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
13 of 23 (56.52%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uhv36uvxiomdotkbjk62j3xotaptkkiys4a5y7647eren6b4yavq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:admin collection rat spyware stealer
Link:
https://tria.ge/reports/231204-f6j29ahb9w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
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:
198.27.121.194:2024
Unpacked files
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/50e9a75f-40e6-4657-a3a2-6cf796921e00/
SH256 hash:
5efa6e57eb0e2e7ad10fa9cf8d281bd2720766e796fab1cc8f715c633538e7a7
MD5 hash:
446a16587c270d5d604c71b67944035a
SHA1 hash:
b4ffcf574bfc856302a49d66d0d284319a1da05c
Link:
https://www.unpac.me/results/50e9a75f-40e6-4657-a3a2-6cf796921e00/
SH256 hash:
2c8f0f080b9e5522d8f71fd53578952487183627125a1fe1f13ef367020c095c
MD5 hash:
b873bf312daa51517dbd7090fd795e00
SHA1 hash:
2480b260dd454ef06a5760627f9c354281499f10
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
win_remcos_rat_unpacked
Create hunting rule
Link:
https://www.unpac.me/results/50e9a75f-40e6-4657-a3a2-6cf796921e00/
Parent samples :
a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b
44a03968b695b78482dabd0bad8c342e93696ebe26f424b0a9af6ca273e7ddcd
SH256 hash:
2340d070fc92470913072bab9087c4ed5675a0e8d4c61145553a8aad52a16994
MD5 hash:
0cf35c9e685b649b084dc5d385aaa62b
SHA1 hash:
06ab63a9a595c6ef82206c7388ff6aee4b1adb51
Link:
https://www.unpac.me/results/50e9a75f-40e6-4657-a3a2-6cf796921e00/
SH256 hash:
a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b
MD5 hash:
8e7aa3950773864da97a49eaff93f7f3
SHA1 hash:
d410fae43411fc61355fd12b4536756c108dee28
Link:
https://www.unpac.me/results/50e9a75f-40e6-4657-a3a2-6cf796921e00/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a1ebbf52b743/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/a1ebbf52b74398374d414abda4eeee981f3529189701dc7fdcf92246f83cc02b

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/462227/

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