MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c. 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 19 File information Comments

SHA256 hash: 5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c
SHA3-384 hash: b1a915cc9835cf4609c5019b3cccdadd0125150c38da75f8ba63f48df919b85509cc0a4582b842db46726d560ff15e49
SHA1 hash: cb896a537f992c24fca80d3a3f4c24314b1bc5c3
MD5 hash: 8563cd10ef8a2244aa53790a4645dbfd
humanhash: spring-tango-lake-sink
File name:5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c
Download: download sample
Signature RemcosRAT
File size:968'192 bytes
First seen:2025-05-09 12:34:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:lfKhrE3NgGRjG3XnDiLEVLI4+7xzH0wgUv5fkW1:lihEtjGHDiL6U4MxAw35
Threatray 887 similar samples on MalwareBazaar
TLSH T1CF251205329ACD02D0BA67B40871E27497B17D8EA936DB0F6FDA6CCB367E7141C50B92
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
363
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c
Verdict:
Malicious activity
Analysis date:
2025-05-09 14:12:20 UTC
Tags:
remcos rat netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
rescoms virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process with a hidden window
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
Connection attempt
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
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
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
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1685358 Sample: zoFBQn8IA2.exe Startdate: 09/05/2025 Architecture: WINDOWS Score: 100 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Sigma detected: Scheduled temp file as task from temp location 2->53 55 9 other signatures 2->55 7 zoFBQn8IA2.exe 7 2->7         started        11 GKjlWQDFnsA.exe 5 2->11         started        process3 file4 39 C:\Users\user\AppData\...behaviorgraphKjlWQDFnsA.exe, PE32 7->39 dropped 41 C:\Users\...behaviorgraphKjlWQDFnsA.exe:Zone.Identifier, ASCII 7->41 dropped 43 C:\Users\user\AppData\Local\...\tmpA496.tmp, XML 7->43 dropped 45 C:\Users\user\AppData\...\zoFBQn8IA2.exe.log, ASCII 7->45 dropped 57 Uses schtasks.exe or at.exe to add and modify task schedules 7->57 59 Adds a directory exclusion to Windows Defender 7->59 61 Injects a PE file into a foreign processes 7->61 13 zoFBQn8IA2.exe 4 1 7->13         started        17 powershell.exe 23 7->17         started        19 schtasks.exe 1 7->19         started        21 zoFBQn8IA2.exe 7->21         started        63 Multi AV Scanner detection for dropped file 11->63 65 Contains functionality to bypass UAC (CMSTPLUA) 11->65 67 Contains functionalty to change the wallpaper 11->67 69 3 other signatures 11->69 23 GKjlWQDFnsA.exe 11->23         started        25 schtasks.exe 1 11->25         started        27 GKjlWQDFnsA.exe 11->27         started        signatures5 process6 dnsIp7 47 103.83.87.190, 5817 GELEXIY-AS-INGelexiyCabNetIN India 13->47 71 Detected Remcos RAT 13->71 29 conhost.exe 13->29         started        73 Loading BitLocker PowerShell Module 17->73 31 WmiPrvSE.exe 17->31         started        33 conhost.exe 17->33         started        35 conhost.exe 19->35         started        37 conhost.exe 25->37         started        signatures8 process9
Threat name:
Win32.Trojan.MassLogger
Status:
Malicious
First seen:
2025-04-16 13:34:57 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
25 of 35 (71.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
103.83.87.190:5817
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Unpacked files
SH256 hash:
5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c
MD5 hash:
8563cd10ef8a2244aa53790a4645dbfd
SHA1 hash:
cb896a537f992c24fca80d3a3f4c24314b1bc5c3
SH256 hash:
62f6957ba106e53caaf172080b36e3ad97737177ceb8e26bd513c18842609edd
MD5 hash:
34f6c854f18473db9ad00dde0b7eaaac
SHA1 hash:
786938ada554014bee7502ab2316734e27e976e4
Detections:
win_remcos_w0 win_remcos_auto Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
SH256 hash:
6825a71093c51b5f8cadf288e0b0091a640c4cea1b5101d83e359863963afe88
MD5 hash:
0b192b1c203c8dfb04d0056da4c62b06
SHA1 hash:
2096613c6d2844807a1ef3cfa1e679d968bd4680
Detections:
win_remcos_w0 win_remcos_auto Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
SH256 hash:
69037f1fec8beaaeba036344c0faa4229be50f888217c6ce18c7bfdc65e90588
MD5 hash:
6a47ad060ecd15552e58152b1f972edf
SHA1 hash:
00143412a490afb7198b72eabd3db26e209159fc
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
9c85ad3854d5fb92157301f6c6aa3013b30eadbf1b485d2913d5efb43ab1e202
MD5 hash:
5e0f08bc5323db17583c0b58ce531713
SHA1 hash:
0642ade9946e1bed70e91011235ab0c2a203b949
SH256 hash:
ed596ce9e2b8bafd0316d43cd006d2e7c0cc853149d0e49923a4bb86836fd1d3
MD5 hash:
6ef15e0a9e67238673568c7a09ad4309
SHA1 hash:
52d3e14f255e260959950cd01d455819e304ea97
Detections:
win_remcos_w0 win_remcos_auto Remcos malware_windows_remcos_rat win_remcos_rat_unpacked INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
SH256 hash:
31bc97a1ab065dd497e772032a542190b899ea5b995edebe86595d7d6dfe06ad
MD5 hash:
533b08152584b64a607845c10c751ff8
SHA1 hash:
6486d16b037ac1a3b7241c554f17df34a707511e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Parent samples :
bd11383a61346123c23e3959b9f9e2f85ff23f9b09a88256f4c67c26356a980a
3489a2eab1c57d0eee2ce6e5773e1f4f53ee6e5d8963e0099efc7e190d0c2f1c
e6fe2241c57847a4911e325b6d3692839f9033de0c99ddeabd47e8d62022bcd1
faac3d9161a1d539ec42986280eeab6246b71c427fa176a239562c110448a1c1
074efb70a49088638d0e62cc3637a75627afe9286c3f2d024e78ea9f247582fe
23808b7d7764dc5d702974b63f7b15c92d86e0ca95826edb47b2f919d911b9c8
6036a28c74493ce0e6d87a468959a047011d2e6cf63807d9a3d154b8642d7e65
be838fc4e67ed12838f4d0ec554524d54e80a03a3949ced4edfb958edbcb24b8
4867fd993605221960bb0289477ed3a14727ed81cc14b8da8b61e3f509d097f5
37da80758e0acd6993e9a2639927c5bcbf8388526fa93168a9b70f6619775df9
c06298e32597bfdf3374174b8f458169df5d561280f5aa11fd25868c67a5de9f
a90bca8c1f6a63cc34a896eb3883428fab6fb6b4aca385ac917fdafcdbf9e774
048ae81730730b45b67054c6ca4e83d727c07b14568397bc95ef51e4825e830d
ea8cce203873c762292f08d1d461a3f38521f1e77bc175dd68b4fef76ceabd19
bda5884e1a65b59d74d3366608a4841111d43d0b6a865879736f5179bac1bcf3
fa1cfaafe2029ee02035b899a389916cb02bac4270d3f438be0a5013f170e420
f2414faf44fac2135ccce1d5fe5c3a53ec3fcde7ad295e2e112af373b02da086
03a317048a5778933751cbf631e08c5b870ec2da45d74466c53f460a603d7d42
4d59b35375d85ca3dd06c76cedea67009a37075e179d0ae192b9412b24bec974
54f50cdad3e5039d3207566e1b9de6e16913993ba2aa711e6f91a68e093ed9c4
b9ee87f239e3ee4599d666b1b755f97ab4c2ab45507654ec1485f9d60af710ca
c6424a8d5558035680e043348443092f2ad0295be323d2848f6509639990ea28
278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
1e98340b6b95bf8c7f96f0b3825473f914d71f78dd2a3032f1f8c3b78c118223
8ef48c6c52f5fed10b8d7c572da9d657ba1fb813a04356de5a47055e9b1250ef
9c100d322eee0b94c9d996c7bc1167df02a820d34dd4b5ee30748d331b064595
c7de64db20145557f5070412a4e15d4d2a00487974e8fce0f4bc3ee42999bd04
5b97cd88bfb20b5d92d426072bc581d159fea064159872e983805bd2c225e64c
ff5bccafd98ba9bd46b459881d752902794630c891dd98764fc1b51cb25a1aed
800a4bab620b5a0c3e184b76cd1a345d5b74b7754fd6aa10a37742e801c5d850
b91da8b8d9a3a5da385a0bde839b80d16824f485746b75597e9236a96d7b2445
3bed682a9298367059c63e05f0b565dbad9f5959302f239c00a92eb3aeb16d67
a7ae95af3a74e706c7a3370b351ba6070b7470e5b6fae98b59fc2612d1e4376e
3701cf2e0022ea59c5f97f083a6f4d975cd0f8f047b3ed0e2c9b29c462605ac8
07a74041ab09d6e30042a163e518da8c70f644924d576a268c981baad87a19ae
699abf03b319292d82d86e3669e6e0e59ed5d704064c56212dbcbde4a8d8fadd
8b3c3e6d8c540773529da82ad7c28265d6a5462e96d1f07a7781dd76c6004ac5
e0ec24c22840b9435a7fcba35fcc9fc13b371abea00ead5ef60ec9f0893630b3
013ac70a93289c1dd9d84ff03a4d4ffc6256f185b098c92ee8dda039201ef8ec
51fde361f93dc3702ed13354d064da8422188f3e1b06d9c9b04951da07d89cb8
dc4e9ca482f2b9e15b04d70b2be7ecb6ec63a40e83da756503cbb1b9fbe023c1
5f8549af42d110a594441941f439b1a7c1d58ec75cf7acf9c9bdfcea75dadedd
SH256 hash:
857c131a621c76907328a69b776b8b2e85f509f384cb8fda93c83aeac9f88dcd
MD5 hash:
ef7f26ba22a205856aa6b571fcf119b5
SHA1 hash:
b0cd8f4e68ad81c019c50202385352ea2707a144
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
985797750dc8b5e75027bc37e94b8d1277bc9b9009e583a12b81b1c3cfd565e8
MD5 hash:
9dccf5672fd9880532dd76e9ec590c16
SHA1 hash:
c623749a38c2dd3023e92ac9d3af154f9d65c869
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:pe_imphash
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments