MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ae5425033502bba7f7b8c7498573f7ca17e7e98e14288f734adb1a5af19318d. 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: 13


Intelligence 13 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ae5425033502bba7f7b8c7498573f7ca17e7e98e14288f734adb1a5af19318d
SHA3-384 hash: 59bac7a4515cc10da966302fb76714a73d31e3a54a7fbe079cd1f6de69555bc5c388565b0733151bba1851e1688983ca
SHA1 hash: 35ef2e58df1d9c2bb164701d930f69a469a9f383
MD5 hash: 91731e95e8f4be683efc909b0f932958
humanhash: enemy-kentucky-uncle-may
File name:91731e95e8f4be683efc909b0f932958.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'179'648 bytes
First seen:2020-12-18 08:40:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:yAHnh+eWsN3skA4RV1Hom2KXMmHaLIahgxY3b5:1h+ZkldoPK8YaLDN
Threatray 2'026 similar samples on MalwareBazaar
TLSH EC45AE02B3D6C076FF9AA2B39B69B24257BC6D350133842F23982D79BD711B1127D663
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
91731e95e8f4be683efc909b0f932958.exe
Verdict:
Malicious activity
Analysis date:
2020-12-18 08:47:32 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/e0516564-13cf-45eb-8845-cc01fd83c591

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/108339/
Detection(s):
Win.Malware.Autoit-6985962-0
Create hunting rule

SecuriteInfo.com.AIT.Trojan.Nymeria.1583.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Sending a UDP request
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Launching a process
DNS request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Enabling autorun by creating a file
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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/566072
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 332116 Sample: PwqjQMHFdu.exe Startdate: 18/12/2020 Architecture: WINDOWS Score: 100 82 daya4659.ddns.net 2->82 88 Malicious sample detected (through community Yara rule) 2->88 90 Antivirus / Scanner detection for submitted sample 2->90 92 Multi AV Scanner detection for submitted file 2->92 94 9 other signatures 2->94 13 PwqjQMHFdu.exe 3 2->13         started        17 sfc.exe 1 2->17         started        19 remcos.exe 2->19         started        21 2 other processes 2->21 signatures3 process4 file5 78 C:\Users\user\AppData\Roaming\...\sfc.exe, PE32 13->78 dropped 104 Binary is likely a compiled AutoIt script file 13->104 106 Contains functionality to detect virtual machines (IN, VMware) 13->106 108 Contains functionality to steal Chrome passwords or cookies 13->108 114 3 other signatures 13->114 23 PwqjQMHFdu.exe 5 5 13->23         started        26 schtasks.exe 1 13->26         started        110 Antivirus detection for dropped file 17->110 112 Injects a PE file into a foreign processes 17->112 28 schtasks.exe 1 17->28         started        30 sfc.exe 17->30         started        32 schtasks.exe 19->32         started        34 remcos.exe 19->34         started        36 schtasks.exe 21->36         started        38 schtasks.exe 21->38         started        40 2 other processes 21->40 signatures6 process7 file8 74 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 23->74 dropped 76 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 23->76 dropped 42 wscript.exe 1 23->42         started        44 conhost.exe 26->44         started        46 conhost.exe 28->46         started        48 conhost.exe 32->48         started        50 conhost.exe 36->50         started        52 conhost.exe 38->52         started        process9 process10 54 cmd.exe 1 42->54         started        process11 56 remcos.exe 1 54->56         started        59 conhost.exe 54->59         started        signatures12 96 Antivirus detection for dropped file 56->96 98 Multi AV Scanner detection for dropped file 56->98 100 Detected unpacking (creates a PE file in dynamic memory) 56->100 102 4 other signatures 56->102 61 remcos.exe 5 3 56->61         started        66 schtasks.exe 1 56->66         started        process13 dnsIp14 84 daya4659.ddns.net 61->84 86 192.168.2.1 unknown unknown 61->86 80 C:\Users\user\AppData\Roaming\...\logs.dat, data 61->80 dropped 116 Tries to harvest and steal browser information (history, passwords, etc) 61->116 118 Writes to foreign memory regions 61->118 120 Allocates memory in foreign processes 61->120 122 Injects a PE file into a foreign processes 61->122 68 svchost.exe 61->68         started        70 conhost.exe 66->70         started        file15 signatures16 process17 process18 72 WerFault.exe 68->72         started       
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3ae5425033502bba7f7b8c7498573f7ca17e7e98e14288f734adb1a5af19318d/
Threat name:
Win32.Hacktool.Generic
Create hunting rule
Status:
Suspicious
First seen:
2020-12-15 09:59:30 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hlsueubtkav3u733rr2jqvz7psqx47uy4fbir5zuvwy2llyzgggq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
376fe3b1f0a17682bddd5795a8f124cab18946f7da4d9b212f77bcb809aca6ae
RemcosRAT
54e9e8ac005eba3cd288eac02d69cb77b8b419b5bf00da41f175d40aec919717
RemcosRAT
55416c27dc034735dba35002a4c206b05ab35bc197a56584d2ddba5dad588633
RemcosRAT
58b84d5bbf1cc1f524c9c2f7cac1ac6a4068f7379beb933be38fef9240e9252e
RemcosRAT
8de876c0766f3590a1e8c5b2ff94d40ec95a093167292dfa07c4c82da173cce6
RemcosRAT
959fb7ddc21a59316a62816578b2d496497bef2f30674a01b881f810782d4de5
RemcosRAT
9d389c6cec94ab389a487a450ce3c2773978eda015fcfc09c9bf1d0370b84ff9
RemcosRAT
ad12d50fbe4f5aba22d53a6f17c1808318a7c1e0c940346642f3f22bc76a3a28
RemcosRAT
d02a845b834c816edcbb6d8d60bd93c96593869a2cb56ca920ceb3dd3edff054
RemcosRAT
d059e5aa288313feb01ce0763572909d1b587791b4e6668225c44f248997ddaf
RemcosRAT
+ 2'016 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat
Link:
https://tria.ge/reports/201218-2rm16nf8ex/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
ServiceHost packer
Remcos
Suspicious use of NtCreateProcessExOtherParentProcess
Malware Config
C2 Extraction:
daya4659.ddns.net:8282
Unpacked files
SH256 hash:
3ae5425033502bba7f7b8c7498573f7ca17e7e98e14288f734adb1a5af19318d
MD5 hash:
91731e95e8f4be683efc909b0f932958
SHA1 hash:
35ef2e58df1d9c2bb164701d930f69a469a9f383
Link:
https://www.unpac.me/results/65f3d6f3-eb98-4a16-a11b-517e6361a68e/
SH256 hash:
0954fe3152ff66dd9dd26dfcb13edf21915e51dec6993600aff97b7a768dc088
MD5 hash:
c9d17b356e7c463f2b4f57e0f98edb1e
SHA1 hash:
16f75139e11c1d673251c8367fea15f44932f881
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/65f3d6f3-eb98-4a16-a11b-517e6361a68e/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3ae5425033502bba7f7b8c7498573f7ca17e7e98e14288f734adb1a5af19318d

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/108339/

Comments