MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4. 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: 19


Intelligence 19 IOCs YARA 30 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
SHA3-384 hash: b8027a0234b72a2df461d4c82aad27367cc67ae2272ab31386d1f7b221dd7166b0c846086598a288ca2cb27542170910
SHA1 hash: 2b674e2c12125636c1524d22d8801e9b7c0e2788
MD5 hash: 80be452a0691b6d764a3d522811d062c
humanhash: item-fish-glucose-charlie
File name:FAT-065456789098765.cmd.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:706'048 bytes
First seen:2023-10-18 12:30:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:KEyGWXpuEYhJE/kDhLMZbU5wBbE8tmXjsStaOPD5WNaQXJYrOiqoXx:1GpOJdhLMZb/BVUjsStaslWRXcP
Threatray 414 similar samples on MalwareBazaar
TLSH T1CAE4018D725EFA3DEBD710FBCADF6744C2AD3BA77023D6A96C0A20226952540D743253
TrID 35.4% (.EXE) Win64 Executable (generic) (10523/12/4)
22.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
15.1% (.EXE) Win32 Executable (generic) (4505/5/1)
6.9% (.ICL) Windows Icons Library (generic) (2059/9)
6.8% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
80.76.51.172:8787

Intelligence

File Origin
# of uploads :
1
# of downloads :
378
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
FAT-065456789098765.cmd.exe
Verdict:
Malicious activity
Analysis date:
2023-10-18 12:34:58 UTC
Tags:
rat remcos stealer keylogger
Link:
https://app.any.run/tasks/e632d88f-af20-4a7a-8f08-92b9d439c264

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/455683/
Detection(s):
SecuriteInfo.com.Win32.KeyloggerX-gen.29920.28780.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin masquerade packed remcos
Link:
https://www.filescan.io/uploads/652fd0074b7ea465c87336c7/reports/ce445f2c-eab0-4466-83d8-ded9432ac088/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
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/d2df3e0b-46f8-4405-ac7a-c0c8139c2c52
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
n/a
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1327978
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
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
Creates executable files without a name
Delayed program exit found
Drops PE files to the startup folder
Found malware configuration
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
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Sigma detected: Remcos
Snort IDS alert for network traffic
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)
Writes to foreign memory regions
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: 1327978 Sample: FAT-065456789098765.cmd.exe Startdate: 18/10/2023 Architecture: WINDOWS Score: 100 41 geoplugin.net 2->41 47 Snort IDS alert for network traffic 2->47 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 16 other signatures 2->53 8 FAT-065456789098765.cmd.exe 3 2->8         started        11 .exe 3 2->11         started        signatures3 process4 signatures5 55 Bypasses PowerShell execution policy 8->55 13 RegAsm.exe 8->13         started        16 powershell.exe 13 8->16         started        57 Writes to foreign memory regions 11->57 59 Injects a PE file into a foreign processes 11->59 19 RegAsm.exe 3 15 11->19         started        22 powershell.exe 11 11->22         started        process6 dnsIp7 67 Contains functionality to bypass UAC (CMSTPLUA) 13->67 69 Tries to steal Mail credentials (via file registry) 13->69 71 Contains functionalty to change the wallpaper 13->71 83 6 other signatures 13->83 37 C:\Users\user\AppData\Roaming\...\.exe, PE32 16->37 dropped 73 Creates executable files without a name 16->73 75 Drops PE files to the startup folder 16->75 77 Powershell drops PE file 16->77 24 conhost.exe 16->24         started        43 80.76.51.172, 49745, 49746, 8787 CLOUDCOMPUTINGDE Bulgaria 19->43 45 geoplugin.net 178.237.33.50, 49747, 80 ATOM86-ASATOM86NL Netherlands 19->45 39 C:\ProgramData\remcos\logs.dat, data 19->39 dropped 79 Maps a DLL or memory area into another process 19->79 81 Installs a global keyboard hook 19->81 26 RegAsm.exe 1 19->26         started        29 RegAsm.exe 1 19->29         started        31 RegAsm.exe 2 19->31         started        33 RegAsm.exe 19->33         started        35 conhost.exe 22->35         started        file8 signatures9 process10 signatures11 61 Tries to steal Instant Messenger accounts or passwords 26->61 63 Tries to harvest and steal browser information (history, passwords, etc) 26->63 65 Tries to steal Mail credentials (via file / registry access) 29->65
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-18 12:31:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cpcsoizydh3wz2kmjk4dta4kee5m24t54xfokzqceks4jxoy2w2a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0f611b87697a816d5b37f745fa94c89315327ba3458c190fe41efd891ccd5196
RemcosRAT
1b06a2398764f23e43dd171d49500cdaa3251ea195ce2c6fc4dfc1067955bf3e
RemcosRAT
1ce13b1a107d66487c04da7180452270eebd76b7f0bcd1df37512fd1306d6656
RemcosRAT
3bdd69de010f0f5eab2291127a6645fb8ed19f279276a6e7bf1122cf1937d61c
RemcosRAT
483d7f7379d43c9fb3effb226cb58a443f48105bda3a9a6310a76729d7c1b3bd
RemcosRAT
4f4a8ff83672c8134227742b12e228e512d32e3c3dabb8e96bdc6b28628d3d26
RemcosRAT
73a8f239da349dabeba46f143311e8f5874589917a88e3f6cd64767c56dde3a2
RemcosRAT
887171e762ec83f7c3f9d12c11742c7e05e9382db50a9fe3268d266215708bf4
RemcosRAT
d1e1c9332fa8a6bd045fd4ccfa11055a4e17d1cad72239aab2400870191c4185
RemcosRAT
f578f28a8a61cc7c6aa866daeb630e2f7d7a6bf4ab54a5a9a3962bcb1a5ed931
RemcosRAT
+ 404 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat spyware stealer
Link:
https://tria.ge/reports/231018-pp2qeafh87/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
80.76.51.172:8787
Unpacked files
SH256 hash:
2df81b7a7580dd8099502f1caaf6ecf3af80d9b04ffe32cf2ac7834d944cc1f2
MD5 hash:
4cfae6afed1c1626499592c0d6711f93
SHA1 hash:
9f41bbd487e22867d3942e0db7a394ae00a69009
Link:
https://www.unpac.me/results/6f0dfb91-1a4b-47c4-8d65-1d9760294fd6/
SH256 hash:
62aa25aebe9ba7deb2a8bbf59a9cd3dcaa08f00a6a50918a76b62a9b47463dfb
MD5 hash:
f89c9b1b652877360b7f7aed8a68c08c
SHA1 hash:
4fdc3b67db966cabb626767c96b612107278a251
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/6f0dfb91-1a4b-47c4-8d65-1d9760294fd6/
Parent samples :
097728d666fc53c8db011b2194f36b7f01b5dabc602b4857caf4c01877385bb0
13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
SH256 hash:
34a4e5fad6bc0da2c70d31eb94ef5f21b1cfd46d13a1927ee14b3a721d839c61
MD5 hash:
75cac79249b275aa458feb9c5bcf0a4d
SHA1 hash:
2823633035c5b88267e57e9aefb15c2207472aa2
Link:
https://www.unpac.me/results/6f0dfb91-1a4b-47c4-8d65-1d9760294fd6/
SH256 hash:
13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
MD5 hash:
80be452a0691b6d764a3d522811d062c
SHA1 hash:
2b674e2c12125636c1524d22d8801e9b7c0e2788
Link:
https://www.unpac.me/results/6f0dfb91-1a4b-47c4-8d65-1d9760294fd6/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/13c527233819/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4

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:NETexecutableMicrosoft
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_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
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.

Cape
Cape
https://www.capesandbox.com/analysis/455683/

Comments