MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda. 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 25 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda
SHA3-384 hash: 4dedf3d9e892bcce055258d657c0047346787d9fd4192bff17d72a6af07e73bcf3be44a9e4ba6d31ac1a16a60bd52df6
SHA1 hash: 4b8d0aa0e2a985eb7f9d6635c6a642c409cfbcaa
MD5 hash: 778efeb9815da110b944909f92be85a7
humanhash: tennessee-massachusetts-cold-floor
File name:Bukti_Transfer..pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'227'776 bytes
First seen:2025-02-28 04:30:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:4s4EwMBBLcFqnv19ndkiYXTw79AkpNTO:l4EwMPLcFqnvTqiYXhV
Threatray 4'237 similar samples on MalwareBazaar
TLSH T19445F10CBB925965C65C2B33C053240D83F88C66F5AAFB6A11D97CE91F76B92C48F853
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
dhash icon f4fbb3e4e486d3e9 (7 x RemcosRAT, 4 x SnakeKeylogger, 3 x AgentTesla)
Reporter MAM
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
473
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Bukti_Transfer..pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-02-28 04:28:59 UTC
Tags:
remcos rat remote mam
Link:
https://app.any.run/tasks/1ad8baa5-515f-407b-af42-a85abdb5e0c1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Nanocore-10020802-0
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c13b2a2dfba428b46f070f
Tags:
underscore kryptik virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Searching for synchronization primitives
Creating a window
Launching a service
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
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
Setting a keyboard event handler
DNS request
Sending a custom TCP request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Labled as:
HackTool[Obfuscator]/MSIL.DeepSea
Link:
https://www.hybrid-analysis.com/sample/e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda
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/c13b7717-2cf1-4f10-ad67-6269eb584a96
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1626244
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
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
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
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
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
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 dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1626244 Sample: Bukti_Transfer..pdf.exe Startdate: 28/02/2025 Architecture: WINDOWS Score: 100 56 austin99.duckdns.org 2->56 58 geoplugin.net 2->58 74 Suricata IDS alerts for network traffic 2->74 76 Found malware configuration 2->76 78 Malicious sample detected (through community Yara rule) 2->78 82 14 other signatures 2->82 8 Bukti_Transfer..pdf.exe 11 7 2->8         started        12 ioVECsnbBNWOws.exe 4 5 2->12         started        signatures3 80 Uses dynamic DNS services 56->80 process4 file5 46 C:\Users\user\AppData\...\ioVECsnbBNWOws.exe, PE32 8->46 dropped 48 C:\...\ioVECsnbBNWOws.exe:Zone.Identifier, ASCII 8->48 dropped 50 C:\Users\user\AppData\Local\...\tmp7185.tmp, XML 8->50 dropped 52 C:\Users\user\...\Bukti_Transfer..pdf.exe.log, ASCII 8->52 dropped 84 Tries to steal Mail credentials (via file registry) 8->84 86 Uses schtasks.exe or at.exe to add and modify task schedules 8->86 88 Adds a directory exclusion to Windows Defender 8->88 14 Bukti_Transfer..pdf.exe 2 16 8->14         started        19 powershell.exe 23 8->19         started        21 schtasks.exe 1 8->21         started        27 2 other processes 8->27 90 Multi AV Scanner detection for dropped file 12->90 92 Contains functionalty to change the wallpaper 12->92 94 Contains functionality to steal Chrome passwords or cookies 12->94 96 4 other signatures 12->96 23 ioVECsnbBNWOws.exe 12->23         started        25 schtasks.exe 12->25         started        signatures6 process7 dnsIp8 60 austin99.duckdns.org 185.213.83.33, 49738, 9373 QUICKPACKETUS Germany 14->60 62 103.186.117.61, 49740, 50039, 9373 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 14->62 64 geoplugin.net 178.237.33.50, 49741, 80 ATOM86-ASATOM86NL Netherlands 14->64 54 C:\ProgramData\remcos\logs.dat, data 14->54 dropped 66 Detected Remcos RAT 14->66 68 Maps a DLL or memory area into another process 14->68 70 Installs a global keyboard hook 14->70 29 Bukti_Transfer..pdf.exe 14->29         started        32 Bukti_Transfer..pdf.exe 14->32         started        34 Bukti_Transfer..pdf.exe 14->34         started        44 3 other processes 14->44 72 Loading BitLocker PowerShell Module 19->72 36 WmiPrvSE.exe 19->36         started        38 conhost.exe 19->38         started        40 conhost.exe 21->40         started        42 conhost.exe 25->42         started        file9 signatures10 process11 signatures12 98 Tries to steal Instant Messenger accounts or passwords 29->98 100 Tries to steal Mail credentials (via file / registry access) 29->100 102 Tries to harvest and steal browser information (history, passwords, etc) 32->102
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-02-28 04:27:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5heo5qmfsusoduf4jhhxcvva5odhv5wtag3mtdxifrbfvnorfpna._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
1b8e6aed1e468008650e35a6442152c2a9a2aa6b75d4e93857e85642b0451368
RemcosRAT
31febdf316e73eaa38c90143a5cd2351cdc4f4921ada4f6b053e5f9c2fa3d752
RemcosRAT
73d157aceb0cbefa3a24509f157e8b59c40881acd0e3360d026fee5845e19f2c
RemcosRAT
e67ae0c8bca17f912e1fdcc8dacac7e967ac9dfcfc031d944663043c99f32ea7
RemcosRAT
error
RemcosRAT
+ 4'227 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:feb 19 discovery execution rat
Link:
https://tria.ge/reports/250228-e5mlba1saw/
Behaviour
Checks processor information in registry
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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:
austin99.duckdns.org:9373
103.186.117.61:9373
sales778.bounceme.net:9373
Verdict:
Malicious
Tags:
Win.Packed.Nanocore-10020802-0
YARA:
n/a
Link:
https://app.threat.zone/submission/c26530da-1831-4c5e-9eec-ce4a13beedc9
Unpacked files
SH256 hash:
e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda
MD5 hash:
778efeb9815da110b944909f92be85a7
SHA1 hash:
4b8d0aa0e2a985eb7f9d6635c6a642c409cfbcaa
Link:
https://www.unpac.me/results/06c9a5d3-d042-40fa-a69f-5c6286b4a2c9/
SH256 hash:
c1b328afc6fd27323c5c30fc4a4ef05cfe18e5ee576e52498a3f11250fd537b4
MD5 hash:
ec8bd17f54dc2b189890ca4979b70443
SHA1 hash:
2a25706be5d6b25d70dc115d5e7d4db1d3679447
Link:
https://www.unpac.me/results/06c9a5d3-d042-40fa-a69f-5c6286b4a2c9/
SH256 hash:
68af274a72183f09fda5695ecefd40d15d3c26d4cddb05de492b136a87a14fac
MD5 hash:
8cce07d577a9dbe6afdbcd763dee54ac
SHA1 hash:
8556fbac7f6a64ce0bf0e4486c925a939978c112
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/06c9a5d3-d042-40fa-a69f-5c6286b4a2c9/
SH256 hash:
237ff17159c54ff1b8e2413212a40db583cd8830f306e707bec82de87dbabfb9
MD5 hash:
7b42d1bf1d5358604fb11024b2d5fa0d
SHA1 hash:
f932583c9579239a9f54edebb6fc059df5d44baf
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_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/06c9a5d3-d042-40fa-a69f-5c6286b4a2c9/
Parent samples :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 family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e9c8eec18595/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/e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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: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

7z 5ba0df7a9010da3092278ef2a16d8c6fda7bb47668c8f58a839f5996803fbdb8

RemcosRAT

Executable exe e9c8eec1859524e1d0bc49cf7156a0eb867af6d301b6c98ee82c425ab5d12bda

(this sample)

  
Link
https://tria.ge/250228-ey3nyszzfz
anyrun
any.run
https://app.any.run/tasks/1ad8baa5-515f-407b-af42-a85abdb5e0c1
  
Dropped by
SHA256 5ba0df7a9010da3092278ef2a16d8c6fda7bb47668c8f58a839f5996803fbdb8
  
Dropped by
MD5 c221c1f82fe4351862f799c1eb4d8c12

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 (GUARD_CF)high

Comments