MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d. 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 30 File information Comments
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SHA256 hash: 15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
SHA3-384 hash: caf32046a20274bb67c0f360bd12d02bf7048b4686831522c1403a392f03b45f5847cbc558ebf7ca4c24106897f148a2
SHA1 hash: 73b38771814c5f125b645b4dddafb0f3d7dedd9e
MD5 hash: ec66e9275cccab12be65ef824dcbf4b7
humanhash: vegan-cardinal-carbon-monkey
File name:DF0987654479REM.cmd
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:799'232 bytes
First seen:2023-10-31 12:41:40 UTC
Last seen:2023-10-31 14:40:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:nuYF8yEyS4hd2+bErP4NePjN0znzXs4uqa4I1y1IEmHDoz5frqTYrOiqo:nujEhdu44xqnbs4uqfI4SEmHDoz5N
Threatray 421 similar samples on MalwareBazaar
TLSH T1C005F1D1228C6F33D175D3F6A6B4620843FD722A2991FB547EDA38DA8471B005A4AFC7
TrID 61.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.1% (.SCR) Windows screen saver (13097/50/3)
8.9% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DF0987654479REM.cmd
Verdict:
Suspicious activity
Analysis date:
2023-10-31 15:06:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/1ee08adb-9420-49d7-8a1b-c1ee4105e915

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/457369/
Detection(s):
SecuriteInfo.com.Trojan.KeyloggerNET.54.30964.24004.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Sending a custom TCP request
Sending a TCP request to an infection source
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6540f6244ebf05ac3f3fa63b/reports/6cfd3a1c-3a84-4787-9550-f85eca931ff5/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
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:
Generic Malware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e80e8a3a-dd61-41de-b22c-79e5555390d6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.spre.phis.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1334855
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 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 domain / URL
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: 1334855 Sample: DF0987654479REM.cmd.exe Startdate: 31/10/2023 Architecture: WINDOWS Score: 100 43 geoplugin.net 2->43 45 fp2e7a.wpc.phicdn.net 2->45 47 fp2e7a.wpc.2be4.phicdn.net 2->47 53 Snort IDS alert for network traffic 2->53 55 Multi AV Scanner detection for domain / URL 2->55 57 Found malware configuration 2->57 59 17 other signatures 2->59 8 DF0987654479REM.cmd.exe 3 2->8         started        11 .exe 3 2->11         started        signatures3 process4 signatures5 61 Bypasses PowerShell execution policy 8->61 63 Writes to foreign memory regions 8->63 65 Injects a PE file into a foreign processes 8->65 13 MSBuild.exe 3 16 8->13         started        18 powershell.exe 13 8->18         started        20 powershell.exe 11 11->20         started        22 MSBuild.exe 11->22         started        24 conhost.exe 11->24         started        process6 dnsIp7 49 80.76.51.172, 49706, 49707, 8787 CLOUDCOMPUTINGDE Bulgaria 13->49 51 geoplugin.net 178.237.33.50, 49708, 80 ATOM86-ASATOM86NL Netherlands 13->51 39 C:\ProgramData\remcos\logs.dat, data 13->39 dropped 73 Contains functionality to bypass UAC (CMSTPLUA) 13->73 75 Tries to steal Mail credentials (via file registry) 13->75 77 Contains functionalty to change the wallpaper 13->77 85 7 other signatures 13->85 26 MSBuild.exe 1 13->26         started        29 MSBuild.exe 1 13->29         started        31 MSBuild.exe 2 13->31         started        33 MSBuild.exe 13->33         started        41 C:\Users\user\AppData\Roaming\...\.exe, PE32 18->41 dropped 79 Creates executable files without a name 18->79 81 Drops PE files to the startup folder 18->81 83 Powershell drops PE file 18->83 35 conhost.exe 18->35         started        37 conhost.exe 20->37         started        file8 signatures9 process10 signatures11 67 Tries to steal Instant Messenger accounts or passwords 26->67 69 Tries to harvest and steal browser information (history, passwords, etc) 26->69 71 Tries to steal Mail credentials (via file / registry access) 29->71
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeyLogger
Create hunting rule
Status:
Malicious
First seen:
2023-10-26 00:29:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cxrxiehjbbvph6by3zj4paos7hg2vjs655rknk2tvrolbfv76zoq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
RemcosRAT
1b06a2398764f23e43dd171d49500cdaa3251ea195ce2c6fc4dfc1067955bf3e
RemcosRAT
1ce13b1a107d66487c04da7180452270eebd76b7f0bcd1df37512fd1306d6656
RemcosRAT
3bdd69de010f0f5eab2291127a6645fb8ed19f279276a6e7bf1122cf1937d61c
RemcosRAT
483d7f7379d43c9fb3effb226cb58a443f48105bda3a9a6310a76729d7c1b3bd
RemcosRAT
4f4a8ff83672c8134227742b12e228e512d32e3c3dabb8e96bdc6b28628d3d26
RemcosRAT
887171e762ec83f7c3f9d12c11742c7e05e9382db50a9fe3268d266215708bf4
RemcosRAT
f578f28a8a61cc7c6aa866daeb630e2f7d7a6bf4ab54a5a9a3962bcb1a5ed931
RemcosRAT
+ 411 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Link:
https://tria.ge/reports/231031-pxb5qaga81/
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
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
80.76.51.172:8787
Unpacked files
SH256 hash:
c6465c43971edbc7c8d1561c2cbc0c593dda3ae54b93df3aa187c7ad5b83bdc3
MD5 hash:
6abb480f15733317850bf5bb191a2b51
SHA1 hash:
d1a6f679321ffd2642c1d1c1e26ff9bb4ea17f8a
Link:
https://www.unpac.me/results/1040d908-5584-4ca9-ae7b-e251728df623/
SH256 hash:
2df81b7a7580dd8099502f1caaf6ecf3af80d9b04ffe32cf2ac7834d944cc1f2
MD5 hash:
4cfae6afed1c1626499592c0d6711f93
SHA1 hash:
9f41bbd487e22867d3942e0db7a394ae00a69009
Link:
https://www.unpac.me/results/1040d908-5584-4ca9-ae7b-e251728df623/
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/1040d908-5584-4ca9-ae7b-e251728df623/
Parent samples :
097728d666fc53c8db011b2194f36b7f01b5dabc602b4857caf4c01877385bb0
13c527233819f76ce94c4ab839838a213acd727de5cae5660222a5c4ddd8d5b4
15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
SH256 hash:
15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d
MD5 hash:
ec66e9275cccab12be65ef824dcbf4b7
SHA1 hash:
73b38771814c5f125b645b4dddafb0f3d7dedd9e
Link:
https://www.unpac.me/results/1040d908-5584-4ca9-ae7b-e251728df623/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/15e37410e908/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/15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d

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.

Malspam

RemcosRAT

Executable exe 15e37410e9086af3f838de53c781d2f9cdaaa65eef62a6ab53ac5cb096bff65d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/457369/

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