MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125. 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: 20


Intelligence 20 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
SHA3-384 hash: 1cad4b86ddb6d1d45bf8db40c3338612571d4608aa20670d6386a11734170d44b3175e498d59f1d6f4903a2f7eea8cd3
SHA1 hash: 29f1cb2a9388512474492e2faa9cc2baf37a1eef
MD5 hash: 179cadbdf8ec9004bf73775f530cf473
humanhash: aspen-florida-winner-march
File name:Air Waybill no 6979374150.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:970'752 bytes
First seen:2025-04-23 11:48:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:/lf2ThrqAwa7W5j6LDpeQxT5hn/R9EFnY45COgMvVBFUf0ploPEl0KjNVr4V:NfKhrqAl7WCDpeQd/beno0RrBB
Threatray 801 similar samples on MalwareBazaar
TLSH T198251209325A9D16D1BE17F11860D1398779BD8BD932DF5E4FEA6CEB727AB001C00B62
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 :
400
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Air Waybill no 6979374150.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-04-23 12:28:23 UTC
Tags:
rat remcos netreactor
Link:
https://app.any.run/tasks/7c167947-8da6-4bce-9037-43b05409fca7

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/3664/
Detection(s):
SecuriteInfo.com.BackDoor.AgentTesla-28.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6808d5bda37ff28e12988d43
Tags:
underscore virus spawn msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Sending a custom TCP request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/6808d38963be5be4c10f8fd8/reports/2c6885be-5fd4-4bcc-b02a-73ecbfc5eda9/overview
Verdict:
Malicious
Labled as:
Trojan.GenericS
Link:
https://www.hybrid-analysis.com/sample/278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/51ece252-6da3-424e-aaa6-295e8a7ba5b4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1671992
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
Initial sample is a PE file and has a suspicious name
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
Sigma detected: Suspicious Double Extension File Execution
Suricata IDS alerts for network traffic
Uses an obfuscated file name to hide its real file extension (double extension)
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1671992 Sample: Air Waybill no 6979374150.pdf.exe Startdate: 23/04/2025 Architecture: WINDOWS Score: 100 54 Suricata IDS alerts for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 15 other signatures 2->60 7 Air Waybill no 6979374150.pdf.exe 7 2->7         started        11 ZQEWfOPnqYVD.exe 5 2->11         started        13 svchost.exe 1 1 2->13         started        process3 dnsIp4 38 C:\Users\user\AppData\...\ZQEWfOPnqYVD.exe, PE32 7->38 dropped 40 C:\Users\...\ZQEWfOPnqYVD.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\AppData\Local\...\tmpBECC.tmp, XML 7->42 dropped 44 C:\...\Air Waybill no 6979374150.pdf.exe.log, ASCII 7->44 dropped 62 Adds a directory exclusion to Windows Defender 7->62 64 Injects a PE file into a foreign processes 7->64 16 Air Waybill no 6979374150.pdf.exe 4 1 7->16         started        20 powershell.exe 23 7->20         started        22 schtasks.exe 1 7->22         started        66 Multi AV Scanner detection for dropped file 11->66 68 Contains functionality to bypass UAC (CMSTPLUA) 11->68 70 Contains functionalty to change the wallpaper 11->70 72 3 other signatures 11->72 24 ZQEWfOPnqYVD.exe 11->24         started        26 schtasks.exe 1 11->26         started        48 127.0.0.1 unknown unknown 13->48 file5 signatures6 process7 dnsIp8 46 23.175.50.77, 49698, 49709, 49711 NEUSTYLECA Reserved 16->46 50 Detected Remcos RAT 16->50 28 conhost.exe 16->28         started        52 Loading BitLocker PowerShell Module 20->52 30 WmiPrvSE.exe 20->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125/
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Create hunting rule
Status:
Malicious
First seen:
2025-04-16 15:19:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
29 of 36 (80.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e6efj4sdarlrkpfehddy2fhsi2iigka5vhwdxlv23e6u3v5dyesq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
074efb70a49088638d0e62cc3637a75627afe9286c3f2d024e78ea9f247582fe
RemcosRAT
2e4a8adeb10758473cd1d42e9869ee03840016814c6cfc0465303b19afaca46f
RemcosRAT
64f8d40a94818b9385624dc6237edee725cc7edf78c09da9fd60454a7b1e2cdc
RemcosRAT
78a5958d02189160abf7e588dada6295e444b6522a45b8f556878ff56058edbc
RemcosRAT
ca763bc6524433635d6e783c01d6eaac6e7afcefab82124d0fd98715e1d982cc
RemcosRAT
cc985a14a3106fa6cd7d46894e6e986a6e47c8f3a11f50c080cf85dc050d00c0
RemcosRAT
d3626bd96d6a11668a6864a514fa77ebb3372a5f88069b4aba668b773e3d6946
RemcosRAT
e8fa06add1e83397ada8e5d1816a8e9ae2b3f6e86ec3d4a1264436cee4a26e25
RemcosRAT
+ 791 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/250423-nykykszrt5/
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:
23.175.50.77:5568
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/769b419d-4765-49e9-a5c0-dfc734c730d0
Unpacked files
SH256 hash:
278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
MD5 hash:
179cadbdf8ec9004bf73775f530cf473
SHA1 hash:
29f1cb2a9388512474492e2faa9cc2baf37a1eef
Link:
https://www.unpac.me/results/6a4749a0-8b78-4815-8e39-7d64b03e5fe1/
SH256 hash:
cc6b9fe2bc9f408748795736103725b5b9a74d19615b6a3d641bd42037bd561f
MD5 hash:
f907d4c65be01ea30b5a7bf983ed52a4
SHA1 hash:
392ab421f85c7fcc9b6b3260a6ac9a1d25282adc
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6a4749a0-8b78-4815-8e39-7d64b03e5fe1/
SH256 hash:
31bc97a1ab065dd497e772032a542190b899ea5b995edebe86595d7d6dfe06ad
MD5 hash:
533b08152584b64a607845c10c751ff8
SHA1 hash:
6486d16b037ac1a3b7241c554f17df34a707511e
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/6a4749a0-8b78-4815-8e39-7d64b03e5fe1/
Parent samples :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 hash:
7a2a393c48ed329c881fac43069622d83fad0c8bcde5a27a118a8dc8218084da
MD5 hash:
1702b8cf2708c5a4d29c346d70a25d09
SHA1 hash:
af073c4b2c10c3ee7aa3f7a7b53e6d7842b724ee
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/6a4749a0-8b78-4815-8e39-7d64b03e5fe1/
Parent samples :
580b8cb782be9b82073f05df6014969244c8d659f249b877205f4331ca50b0dd
26a8a6b3c9e1d0ff83095ee47dd40cb6c3e5f5c961b6a731d9282a85c99e9714
074efb70a49088638d0e62cc3637a75627afe9286c3f2d024e78ea9f247582fe
278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125
07a74041ab09d6e30042a163e518da8c70f644924d576a268c981baad87a19ae
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/278854f24304/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/278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125

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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
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

File information

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

Malspam

RemcosRAT

Executable exe 278854f2430457153ca438c78d14f2469083281da9ec3baebad93d4dd7a3c125

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/3664/

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