MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f
SHA3-384 hash: b3e0f6e5acc666355a8563958d83285189a4f0a47940600e2daac137def41a1018584bc72adc1822429ca01dda596103
SHA1 hash: e2da1b80f9b1dc69837a33e70ea00fc29538b8e2
MD5 hash: bd2cc0d77439897df24dee9a6ee2ef9b
humanhash: snake-bacon-eleven-august
File name:bd2cc0d77439897df24dee9a6ee2ef9b.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:901'120 bytes
First seen:2023-03-13 10:19:01 UTC
Last seen:2023-03-13 11:29:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:tUayKWt/Ik4e+hTWWcaVx1RUOFEZbeGV6:tKxIZXhKbgEZbeGV
Threatray 390 similar samples on MalwareBazaar
TLSH T1C315CF55B312E938CF1A263FF1810D5822641E02EBBCCA897F497E9148D5BC85DC6DBB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
TEKLİF İSTEME FORMU.doc
Verdict:
Malicious activity
Analysis date:
2023-03-13 05:58:20 UTC
Tags:
exploit cve-2017-11882 loader
Link:
https://app.any.run/tasks/e438ed09-5b9d-4e8a-b808-486f4c7d81a4

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/373968/
Detection(s):
SecuriteInfo.com.Variant.Lazy.311906.13492.21915.UNOFFICIAL
Create hunting rule

Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching cmd.exe command interpreter
Launching a process
Running batch commands
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed remcos
Link:
https://www.filescan.io/uploads/640ef89a15e425e0dcc1cc71/reports/64d29b77-4e47-451c-80ae-8b8e74c83c23/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/77aa70f0-8d95-4652-ac04-b25eef55182a
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1192474
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Creates an autostart registry key pointing to binary in C:\Windows
Detected Remcos RAT
Disables UAC (registry)
Drops executables to the windows directory (C:\Windows) and starts them
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses cmd line tools excessively to alter registry or file data
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 825372 Sample: b7s6hs05Oq.exe Startdate: 13/03/2023 Architecture: WINDOWS Score: 100 79 Multi AV Scanner detection for domain / URL 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 Multi AV Scanner detection for dropped file 2->83 85 8 other signatures 2->85 11 b7s6hs05Oq.exe 3 2->11         started        15 Windows Start-Up Audio.exe 2 2->15         started        17 Windows Start-Up Audio.exe 2 2->17         started        process3 file4 71 C:\Users\user\AppData\...\b7s6hs05Oq.exe.log, ASCII 11->71 dropped 101 Contains functionality to detect virtual machines (IN, VMware) 11->101 103 Contains functionality to steal Chrome passwords or cookies 11->103 105 Contains functionality to capture and log keystrokes 11->105 111 2 other signatures 11->111 19 b7s6hs05Oq.exe 1 5 11->19         started        23 b7s6hs05Oq.exe 11->23         started        25 Windows Start-Up Audio.exe 15->25         started        107 Drops executables to the windows directory (C:\Windows) and starts them 17->107 109 Injects a PE file into a foreign processes 17->109 28 Windows Start-Up Audio.exe 17->28         started        signatures5 process6 dnsIp7 67 C:\Windows\...\Windows Start-Up Audio.exe, PE32 19->67 dropped 69 Windows Start-Up A...exe:Zone.Identifier, ASCII 19->69 dropped 87 Creates an autostart registry key pointing to binary in C:\Windows 19->87 30 cmd.exe 1 19->30         started        33 cmd.exe 1 19->33         started        75 ytuna1709.duckdns.org 79.134.225.119, 3035, 49698, 49699 FINK-TELECOM-SERVICESCH Switzerland 25->75 77 192.168.2.1 unknown unknown 25->77 89 Installs a global keyboard hook 25->89 35 cmd.exe 25->35         started        file8 signatures9 process10 signatures11 115 Uses ping.exe to sleep 30->115 37 Windows Start-Up Audio.exe 3 30->37         started        39 PING.EXE 1 30->39         started        42 conhost.exe 30->42         started        117 Uses cmd line tools excessively to alter registry or file data 33->117 119 Uses ping.exe to check the status of other devices and networks 33->119 44 reg.exe 1 33->44         started        47 conhost.exe 33->47         started        49 conhost.exe 35->49         started        51 reg.exe 35->51         started        process12 dnsIp13 53 Windows Start-Up Audio.exe 2 1 37->53         started        56 Windows Start-Up Audio.exe 37->56         started        73 127.0.0.1 unknown unknown 39->73 113 Disables UAC (registry) 44->113 signatures14 process15 signatures16 91 Detected Remcos RAT 53->91 93 Writes to foreign memory regions 53->93 95 Allocates memory in foreign processes 53->95 97 Injects a PE file into a foreign processes 53->97 58 cmd.exe 1 53->58         started        61 iexplore.exe 53->61         started        process17 signatures18 99 Uses cmd line tools excessively to alter registry or file data 58->99 63 conhost.exe 58->63         started        65 reg.exe 1 58->65         started        process19
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-03-13 02:28:12 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=gxq2cjaxrqeat5w3cf6rlyjtsznqqqf2jlnx66rqxlgccicmdepq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
05e1c9b65c5c34d39abe5682f747ef5debcc931d768f0023644a39233a553405
RemcosRAT
2435aff7e691f28e5b1e98780fde77e2d690f088f0205f69a648c7eaa55ef076
RemcosRAT
4cbf921ca59d8725280de0d34864dc44eb98fadde5ea010683a8f8820eb3b803
RemcosRAT
5107b9fda1ce6e7c51fb52d7928c49a82731ff4fc3c75d700737ce3c2f274044
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5b474ca6fc8158bd6f14d53bca8962f25db3392dfe324f49ddf376610bd785e4
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5f4e4a43a01b235d781c6888198b18750529dda9fc4727727940115090e06a6d
RemcosRAT
9367f2fed062c994290b2eff35d3560ead41338e9879d15ec49df4c7e8acd358
RemcosRAT
cd4d28a18dcf8944c2d6363a30fe0cbca2b1d52d48b43ae46965edfba8c8b013
RemcosRAT
d92ad864a7ceb69d94b5247c94dc7cec67a58ff72347738d695820f9b841e379
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ebb443f00afcb7b69099209821b747076d16ec48c76c13100c9e15da7ed2beda
RemcosRAT
+ 380 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:update brand:microsoft evasion persistence phishing rat trojan
Link:
https://tria.ge/reports/230313-mch2esbh6v/
Behaviour
Enumerates system info in registry
Modifies registry class
Modifies registry key
Runs ping.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Detected potential entity reuse from brand microsoft.
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
UAC bypass
Malware Config
C2 Extraction:
ytuna1709.duckdns.org:3035
Unpacked files
SH256 hash:
f684e20045ecfa81dbf58b1689670e2cb39966440b20bd54d82a16a189c33256
MD5 hash:
e5202bbc390e108c0851722539855ad8
SHA1 hash:
9d47e87873a076b9dbd514c3adba5b93c620eea2
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
SH256 hash:
d06df7395d561e198f9b7c5481567116ff2e4c2e84437c018d2a2c8ea6c4ca37
MD5 hash:
0fb6061f7d37424fb9e6d0e76b019c19
SHA1 hash:
98a64bf7b459f032d6ec5793003bf61b5ae1dd74
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
Parent samples :
495607b1aef01bf7dfb64b5cb16a8fc0f161c2923627d71c69de97328f8eca3f
2434aa78b46a3afc98fa6e888c3eb56278ba52b0ff800e7e875af9c2e7f9011a
SH256 hash:
4ce7b10885620ee9aa77e900f4affb0b4a33ea26aae7466f7e42aa36c4a02e0c
MD5 hash:
4534ff499d2646c802766abd5afe5c50
SHA1 hash:
59b7bc0e860ec767f9d94b9ef043c6e421be617e
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
SH256 hash:
adda44b5669de8c4740500552617bba862a128f6b6699d7eca8164a3bddd9d22
MD5 hash:
c84d1e98a233f6545b6f5306edcc00fc
SHA1 hash:
2e620a6d588c993404ae7f3c6647741c9d9616aa
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
SH256 hash:
c234684a33231d86ca3a0c6459d4fc982bfd2516807b0022d9094868d2111719
MD5 hash:
33846e3d38c36db71b091f1d26d97491
SHA1 hash:
a92e54e4016e792bd11828e92c66684f69309ea2
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
SH256 hash:
35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f
MD5 hash:
bd2cc0d77439897df24dee9a6ee2ef9b
SHA1 hash:
e2da1b80f9b1dc69837a33e70ea00fc29538b8e2
Link:
https://www.unpac.me/results/1d497d57-34df-4de4-bcfa-897c18b26084/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/35e1a124178c/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/35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe 35e1a124178c0809f6db117d15e133965b0840ba4adb7f7a30bacc21204c191f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2272201/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/373968/

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