MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5. 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: 18


Intelligence 18 IOCs YARA 36 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5
SHA3-384 hash: 53479f4f8479dd23e47dd5b20c5a9002ceaa257d010993c69a5c859dd2a130a14faee81c902583bdf3f7e69f60d7f942
SHA1 hash: aea576b2c5861fad4bfea1e2928380829cd72c54
MD5 hash: 63e69d6aa489b9486d4833cd70645751
humanhash: lithium-uranus-washington-mike
File name:VGM WORD - SO.4208 - PO WK16 TPES25040659.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'072'128 bytes
First seen:2025-04-29 03:46:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:5TTTTTTTr5W3ffv9xua5f3Sit1ZuIqnTFXOKzAXAjAHrLz:55ASuvhtPmJXOZ
TLSH T1983512852785DB07CE655BF46A30F2B1577D5EAE6801E60A9FD92CFB3936F084C04A83
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 1adc8c8c9a9a82e0 (5 x Formbook, 4 x MassLogger, 2 x AgentTesla)
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
457
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
VGM WORD - SO.4208 - PO WK16 TPES25040659.scr
Verdict:
Malicious activity
Analysis date:
2025-04-29 03:48:45 UTC
Tags:
remcos rat auto-reg remote stealer
Link:
https://app.any.run/tasks/f2011d51-1b5a-4e89-bc21-64ce5231e3cc

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/4820/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68104eb8c8b2e86d0ac41f95
Tags:
micro lien msil sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a process from a recently created file
Connection attempt
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Launching a process
Reading critical registry keys
Creating a file in the %temp% directory
Creating a window
Restart of the analyzed sample
Creating a file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
entropy masquerade obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68104bbd212716475fb061d5/reports/ff65f629-c962-4e75-9547-37b6c5895a96/overview
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6cae2b47-1dc4-4635-a00f-4fd6a2b9afc1
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1676852
Signature
.NET source code contains potential unpacker
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
Creates autostart registry keys with suspicious names
Found malware configuration
Joe Sandbox ML detected suspicious 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
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)
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: 1676852 Sample: VGM#U00a0WORD - SO.4208 - P... Startdate: 29/04/2025 Architecture: WINDOWS Score: 100 51 geoplugin.net 2->51 57 Suricata IDS alerts for network traffic 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 13 other signatures 2->63 10 VGM#U00a0WORD - SO.4208 - PO WK16  TPES25040659.scr.exe 3 2->10         started        13 Adobe-Reader.exe 2->13         started        15 Adobe-Reader.exe 2 2->15         started        17 Adobe-Reader.exe 2 2->17         started        signatures3 process4 file5 49 VGM#U00a0WORD - SO...5040659.scr.exe.log, ASCII 10->49 dropped 19 VGM#U00a0WORD - SO.4208 - PO WK16  TPES25040659.scr.exe 2 4 10->19         started        23 Adobe-Reader.exe 13->23         started        25 Adobe-Reader.exe 13->25         started        27 Adobe-Reader.exe 15->27         started        29 Adobe-Reader.exe 17->29         started        process6 file7 45 C:\ProgramData\...\Adobe-Reader.exe, PE32 19->45 dropped 47 C:\...\Adobe-Reader.exe:Zone.Identifier, ASCII 19->47 dropped 69 Creates autostart registry keys with suspicious names 19->69 31 Adobe-Reader.exe 3 19->31         started        signatures8 process9 signatures10 79 Multi AV Scanner detection for dropped file 31->79 34 Adobe-Reader.exe 4 14 31->34         started        process11 dnsIp12 53 104.250.180.178, 49692, 49693, 7902 M247GB United States 34->53 55 geoplugin.net 178.237.33.50, 49694, 80 ATOM86-ASATOM86NL Netherlands 34->55 65 Writes to foreign memory regions 34->65 67 Maps a DLL or memory area into another process 34->67 38 recover.exe 2 34->38         started        41 recover.exe 1 34->41         started        43 recover.exe 1 34->43         started        signatures13 process14 signatures15 71 Tries to steal Mail credentials (via file registry) 38->71 73 Tries to harvest and steal browser information (history, passwords, etc) 38->73 75 Tries to steal Instant Messenger accounts or passwords 41->75 77 Tries to steal Mail credentials (via file / registry access) 41->77
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5/
Threat name:
Win32.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2025-04-29 03:18:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
27
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5b7ykooorlenzjvgdky5cvb67cjaipospe5oklxysp6n7dzksl2q._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/250429-eb8xfswnz5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
104.250.180.178:7902
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/91eb3e35-d823-498d-b3ec-099fbcefeaa7
Unpacked files
SH256 hash:
e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5
MD5 hash:
63e69d6aa489b9486d4833cd70645751
SHA1 hash:
aea576b2c5861fad4bfea1e2928380829cd72c54
Link:
https://www.unpac.me/results/e0c61750-e770-4fae-8918-512ed32c8b6c/
SH256 hash:
c09e0e64718e1b45af19885feddc86f902bc18cb5fa5e64dade87ee1c4f0f3f2
MD5 hash:
2e4fe6630c31bbf4ad9558dbdb64ae4d
SHA1 hash:
030852dcab9532308aefb31b1b719416c5840d24
Link:
https://www.unpac.me/results/e0c61750-e770-4fae-8918-512ed32c8b6c/
SH256 hash:
94f800ec748b0f879a92036707b941dbed14c3469595661755e9d20fca914a9c
MD5 hash:
0a25e053c88d7743f0ad2b17ed07952b
SHA1 hash:
3eb9efe87f1363161d72194a3d807e6c7ad5c652
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/e0c61750-e770-4fae-8918-512ed32c8b6c/
Parent samples :
5e47d534bc69265885b633e57144923a33dccc9e6f19aae9b1906057fada4ef8
b9e560839e19d9fc3cb727c4dd29a81566162a924b9a8ae5f55523284a243cc7
e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5
75479214a1966d37e9be5b0c870fe87cfb8325e028634a6be13a15563f85129a
ed830a56fa30b98c9b5cfeb01d53bdbbd601df1115a037a5b9346367de382e02
134c8c01c688d2f6a23765c6f917633d2c9f440e6c37753874ddd938862b1ff0
SH256 hash:
ac8e09a7187666a2336ac28b8726e8ec23bd1076b51a4113517e3c8f5b247d5c
MD5 hash:
5cfa078643cd7429080ac9531f7d0187
SHA1 hash:
7a8bd7ab1d2ca9cdd158850310394ec9d50eed9f
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/e0c61750-e770-4fae-8918-512ed32c8b6c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e87f8539ce8a/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/e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5

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: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_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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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:nirsoft_v1
Create hunting rule
Author:RandomMalware
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:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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: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
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 e87f8539ce8ac8dca6a61ab1d1543ef892043dd2793ae52ef893fcdf8f2a92f5

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/4820/

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