MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6. 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 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6
SHA3-384 hash: 0d2482c3c60865f03a3935c8caeffa257fbcc864a218413c7db8b0d6a193d341e4cfa721811f78c28303c92ce3c134c8
SHA1 hash: 29c8b71d9efe41cd50b27bcb06ec0832b330a773
MD5 hash: 83295301b13bb803d6104199993e8a0b
humanhash: fruit-missouri-butter-berlin
File name:Request For Quotation..exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'373'184 bytes
First seen:2025-09-02 00:41:03 UTC
Last seen:2025-09-05 13:41:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep 24576:C5EmXFtKaL4/oFe5T9yyXYfP1ijXdaCoXjy2tggxWtNuKahTXIP+6gN:CPVt/LZeJbInQRaCoXjyOEt8KapXi
Threatray 1'892 similar samples on MalwareBazaar
TLSH T1CF55CF0273C1D062FFAB91734B6AF6215BBC79260123A52F13981DB9BD701B1563E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
114
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Request For Quotation..exe
Verdict:
No threats detected
Analysis date:
2025-09-02 00:44:23 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eaa06ba4-b655-4e0f-a932-d14b035d3818

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/24624/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68b63d3c3e988eb6ab83906e
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Connection attempt to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context autoit cmd compiled-script fingerprint fingerprint keylogger lolbin microsoft_visual_cc mpcmdrun obfuscated packed packed packer_detected schtasks squirrel threat
Link:
https://www.filescan.io/uploads/68b63d3ed5fe4d855590e285/reports/f7463d8b-1679-4aab-892d-c993e01a8514/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-28T21:24:00Z UTC
Last seen:
2025-08-28T21:24:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6/results?tab=lookup
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a510cef9-2505-42a8-9b87-86aa73b9242f
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1769152
Signature
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/83295301b13bb803d6104199993e8a0b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-29 11:09:20 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rz32xm6jc3o3f6s3qsfb33llxjq7dkzfmzqgkye7jhcbitdnswta._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0faf94a24b00a7dca3cb0e26b29b0c3f72f66e2f968d997ad45e74620efeb11b
RemcosRAT
92465a1c7629bb10ce9f67b667871537887a281b66a90dd4d481612111d3dd63
RemcosRAT
9b5938a8e6a10e191231b99e55c60c7ebce26dbc038012b60bc9682719dded33
RemcosRAT
a44ec84f90dde06cf8a11e599ca19956f8b924dfefd77eea76f6ad23b63b3ff4
RemcosRAT
b3519529f6d34d7fa3108901fe68b12f4577de4e610433e1ae733666fd8f1126
RemcosRAT
bbeb60069be1fdb21ef420628bb1294bcdac1441d29cf3c91cbc2dfd7e7e07c1
RemcosRAT
d6db45310338efda0778f101ea3378831370913796f5971fd861d9f2c3f49ef0
RemcosRAT
+ 1'882 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery rat
Link:
https://tria.ge/reports/250902-a1y2bsyyes/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Remcos
Remcos family
Malware Config
C2 Extraction:
216.9.224.88:15403
216.9.224.88:15402
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/32deffae-08ee-43b8-afc6-e15fcb5ebfec
Unpacked files
SH256 hash:
8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6
MD5 hash:
83295301b13bb803d6104199993e8a0b
SHA1 hash:
29c8b71d9efe41cd50b27bcb06ec0832b330a773
Link:
https://www.unpac.me/results/5c2627fd-3888-48ec-9715-6a294f00794b/
SH256 hash:
179f77c36cfdd9763622be0dd270e860c368d40b839dd124f3fcc65c8a89d6de
MD5 hash:
b25473244feb513eb6c49b8e922d2f8a
SHA1 hash:
2111b544a0996f184a65c01667227d3f4e16f684
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/5c2627fd-3888-48ec-9715-6a294f00794b/
Parent samples :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 family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8e77abb3c916/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/8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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 8e77abb3c916ddb2fa5b848a1ded6bba61f1ab25666065609f49c4144c6d95a6

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/24624/

Comments