MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867. 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: 15


Intelligence 15 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867
SHA3-384 hash: a1c84ace8d8f9fa5ff8054f373b265aa5c142a88c5b545b20b3c939bd46a0f8e507412cab3d685729fdcff2e63b6a9cc
SHA1 hash: a9f02353a8f135b5f2d40197bd7393dbe8d91d01
MD5 hash: a654c0ee8edcf7271e5a4c1a4a8ab427
humanhash: bravo-december-pluto-washington
File name:9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'179'152 bytes
First seen:2021-09-15 08:09:43 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+eWsN3skA4RV1Hom2KXMmHaLIahgxY3b55:1h+ZkldoPK8YaLDN5
Threatray 2'042 similar samples on MalwareBazaar
TLSH T17745AE02B3D6C076FF9AA2B39B69B24257BC6D350133842F23982D79BD711B1127D663
dhash icon d0e429d495960c97 (1 x RemcosRAT)
Reporter JAMESWT_WT
Tags:exe 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:
9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867
Verdict:
Malicious activity
Analysis date:
2021-09-15 08:34:10 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/8bbf38db-5350-489a-a5c4-e0aaedb22fd0

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/188105/
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
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
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
Setting a global event handler for the keyboard
Query of malicious DNS domain
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/617517e7a9d585e6d5370eed/reports/99d8eb3e-8d6c-40ad-b44a-0c709af58509/overview
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/959be687-eada-4a87-806b-c68b1c153819
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/851197
Signature
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 inject code into remote processes
Detected Remcos RAT
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: Suspect Svchost Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Suspicious Svchost Process
Sigma detected: WScript or CScript Dropper
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
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 483628 Sample: 5ue47fIoHn Startdate: 15/09/2021 Architecture: WINDOWS Score: 100 86 daya4659.ddns.net 2->86 90 Malicious sample detected (through community Yara rule) 2->90 92 Antivirus / Scanner detection for submitted sample 2->92 94 Multi AV Scanner detection for submitted file 2->94 96 10 other signatures 2->96 12 5ue47fIoHn.exe 3 2->12         started        16 sfc.exe 1 2->16         started        18 remcos.exe 1 2->18         started        20 4 other processes 2->20 signatures3 process4 file5 80 C:\Users\user\AppData\Roaming\...\sfc.exe, PE32 12->80 dropped 104 Binary is likely a compiled AutoIt script file 12->104 106 Contains functionality to inject code into remote processes 12->106 108 Uses schtasks.exe or at.exe to add and modify task schedules 12->108 22 5ue47fIoHn.exe 5 5 12->22         started        25 schtasks.exe 1 12->25         started        110 Antivirus detection for dropped file 16->110 112 Injects a PE file into a foreign processes 16->112 27 schtasks.exe 16->27         started        29 sfc.exe 16->29         started        31 schtasks.exe 18->31         started        33 remcos.exe 18->33         started        35 schtasks.exe 20->35         started        37 schtasks.exe 20->37         started        39 6 other processes 20->39 signatures6 process7 file8 74 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 22->74 dropped 76 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 22->76 dropped 78 C:\Users\user\AppData\Local\...\install.vbs, data 22->78 dropped 41 wscript.exe 1 22->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 31->47         started        49 conhost.exe 35->49         started        51 conhost.exe 37->51         started        53 conhost.exe 39->53         started        55 conhost.exe 39->55         started        process9 process10 57 cmd.exe 1 41->57         started        process11 59 remcos.exe 1 57->59         started        62 conhost.exe 57->62         started        signatures12 98 Antivirus detection for dropped file 59->98 100 Multi AV Scanner detection for dropped file 59->100 102 Injects a PE file into a foreign processes 59->102 64 remcos.exe 4 3 59->64         started        68 schtasks.exe 59->68         started        process13 dnsIp14 82 192.168.2.1 unknown unknown 64->82 84 daya4659.ddns.net 64->84 88 Tries to harvest and steal browser information (history, passwords, etc) 64->88 70 svchost.exe 64->70         started        72 conhost.exe 68->72         started        signatures15 process16
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867/
Threat name:
Win32.Hacktool.Generic
Create hunting rule
Status:
Suspicious
First seen:
2019-09-08 17:31:42 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
38 of 45 (84.44%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tkm26gnlprzavs5jkocvpwxb5cal4odedfaf7vk4gfrw3sgf7btq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
052b8eec119b2bf81f6c86e9531db92d313339b5cb720f6e665854c5d45b1951
RemcosRAT
34991b7520110a2b781dbb5000fbe3194dd2d5bff9951f7d682afff40b4a91b8
RemcosRAT
359ac8bb415a9af23c0ff8b6e39a868d32db5ad817cd7e577c85ab665709e634
RemcosRAT
376fe3b1f0a17682bddd5795a8f124cab18946f7da4d9b212f77bcb809aca6ae
RemcosRAT
3eaee64b27bea580fc71081ded630b72451f4040de31a8486c7d8f44bdbcffcd
RemcosRAT
4a7b9d57d98b3a41796c905dae1bb7e3ffc077e0607c39181693e91b220904b4
RemcosRAT
4bc2f47b09e93f2879835525f20121dd508c16a07f4cee57e420552919156047
RemcosRAT
61ca76f870979b256a19ef6bd2be6e54fafcbb5af20401e2811e16966f915b23
RemcosRAT
8c2e43ef586651d691717a853437fcd7c1296598fc2c6a40eb3ddaba91686c36
RemcosRAT
+ 2'032 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Link:
https://tria.ge/reports/210915-j2tmnsabh9/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
autoit_exe
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
daya4659.ddns.net:8282
Unpacked files
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/63e97711-45a9-4733-acf7-d8131899c2d5/
Parent samples :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 hash:
9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867
MD5 hash:
a654c0ee8edcf7271e5a4c1a4a8ab427
SHA1 hash:
a9f02353a8f135b5f2d40197bd7393dbe8d91d01
Link:
https://www.unpac.me/results/63e97711-45a9-4733-acf7-d8131899c2d5/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/9a99af19ab7c/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/9a99af19ab7c720acba9538557dae1e880be386419405fd55c31636dc8c5f867

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
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:Detects win.remcos.

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/188105/

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