MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d. 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 7 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d
SHA3-384 hash: 57be1f162edb2fee7020b2143642aebcc6a1cffe359943d64543836e0f9a47b905d9bd304c819abdfa5dab985a1254f1
SHA1 hash: adec117f2bd7e77fd2335296f806a03e60dba983
MD5 hash: a334499e4fbda3a99a0bdc96b6bf64c5
humanhash: white-river-minnesota-uniform
File name:a334499e4fbda3a99a0bdc96b6bf64c5
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:817'152 bytes
First seen:2022-07-22 13:58:51 UTC
Last seen:2022-07-23 06:08:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:siQSf75QG8nWSBL8dem1tk7yko+9cz3+b4E:siP75QGyW08del7yko+9mh
Threatray 1'637 similar samples on MalwareBazaar
TLSH T10305239423D4C338DBDE1B3288A49615133C6747A676E74C6EC735B65CEB3A20B11ACB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.3% (.SCR) Windows screen saver (13101/52/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
348
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/293421/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.38260.26488.2547.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit packed remcos
Link:
https://www.filescan.io/uploads/62daadaa45a9cc4087900e88/reports/7f6fbd5e-a6e8-4d3c-a717-80cca9a9ba2c/overview
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/eba900b7-f5ac-4f24-99dd-d7c51039f6b3
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1039280
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
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 dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 671774 Sample: macDH7U1M1 Startdate: 22/07/2022 Architecture: WINDOWS Score: 100 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for dropped file 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 7 other signatures 2->56 10 macDH7U1M1.exe 3 2->10         started        14 qos.exe 2 2->14         started        16 qos.exe 2 2->16         started        process3 file4 44 C:\Users\user\AppData\...\macDH7U1M1.exe.log, ASCII 10->44 dropped 60 Contains functionality to steal Chrome passwords or cookies 10->60 62 Contains functionality to inject code into remote processes 10->62 64 Contains functionality to steal Firefox passwords or cookies 10->64 66 Delayed program exit found 10->66 18 macDH7U1M1.exe 4 4 10->18         started        68 Injects a PE file into a foreign processes 14->68 21 qos.exe 14->21         started        23 qos.exe 16->23         started        signatures5 process6 file7 38 C:\Users\user\AppData\Roaming\qos.exe, PE32 18->38 dropped 40 C:\Users\user\...\qos.exe:Zone.Identifier, ASCII 18->40 dropped 42 C:\Users\user\AppData\Local\...\install.vbs, data 18->42 dropped 25 wscript.exe 1 18->25         started        process8 process9 27 cmd.exe 1 25->27         started        process10 29 qos.exe 3 27->29         started        32 conhost.exe 27->32         started        signatures11 70 Multi AV Scanner detection for dropped file 29->70 72 Machine Learning detection for dropped file 29->72 74 Injects a PE file into a foreign processes 29->74 34 qos.exe 2 14 29->34         started        process12 dnsIp13 46 mekremcos23.freedynamicdns.net 185.225.73.157, 2397, 49743 MAYAKBG Germany 34->46 48 geoplugin.net 178.237.33.50, 49744, 80 ATOM86-ASATOM86NL Netherlands 34->48 58 Installs a global keyboard hook 34->58 signatures14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-07-21 11:04:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=grvezixfbcjdxtyojqgxhixoa3mrxvbwxdnutanlt3frnzxvcegq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
082525150d7aace7e21b3bfb469f86c2e7239593c50cebc143d7f8a66b898b83
RemcosRAT
21323faa5f74ccc103e64f30bc31b36e0cfc971a601b59502713151ad4f465db
RemcosRAT
22eb93bbc1e2fbfc6435a3e3514684d17c3577e4edae4bb76470212e72b70e89
RemcosRAT
5482c9775362ce202cf44b082ce747f7e69f522a903ccc031c975cc714c82a8c
RemcosRAT
7484e671f44dff5800c656985f8dc0540913622989a3d799bd012cb9dfb23762
RemcosRAT
7e563602480b39de3e0587cbd8ea14802bf002b2603cd9033fc9568465ece030
RemcosRAT
db8a8a4bf1e1e63ef1bd27f8131dfeb14bca74e9d68605cf71e9eac5126baa48
RemcosRAT
dfa6c38c1b3b33a94e1e884e47e0864808c8af196c260b6b8045cb4ed37d300e
RemcosRAT
+ 1'627 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost_meki persistence rat
Link:
https://tria.ge/reports/220722-radfdaffb8/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
mekremcos23.freedynamicdns.net:2397
Unpacked files
SH256 hash:
80a6086d15f147d0933067d074d255a2a0e79689d6e0b33606e754ea0483f81b
MD5 hash:
b678a14e7af46caba873cbfdd0ca4214
SHA1 hash:
fb0fe3c9e3891125a7023c12e9d55b7a40a3bde5
Link:
https://www.unpac.me/results/f678e86d-ae27-446e-8249-471a7672a2ee/
SH256 hash:
1d849583acd37e4f723b38b6121482112e5d4827083318c753cfec5ec4c26a2d
MD5 hash:
8139cf816de8276ad03004165de7f391
SHA1 hash:
cd46a81ecfc8bb4b1ba8a6149a887b0e5fc3f376
Link:
https://www.unpac.me/results/f678e86d-ae27-446e-8249-471a7672a2ee/
SH256 hash:
44743dda09e3d58941f2330a4e3d11641a9cd1cb41306f30dd2575a17ccaec19
MD5 hash:
4e48d643ecc61d79cbff0d725c81ad88
SHA1 hash:
9c53f29dcfb790898ec9d90b8a77547064786e4e
Link:
https://www.unpac.me/results/f678e86d-ae27-446e-8249-471a7672a2ee/
SH256 hash:
2a8b24bbcda2caaf6b346654c3b791ea352ed1a5c629fc76ec5ff4e2dc63b326
MD5 hash:
4842927e8211640b4de37997ea0b2080
SHA1 hash:
796be7b6de743729fa494078b85b1da7430d1c82
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/f678e86d-ae27-446e-8249-471a7672a2ee/
Parent samples :
346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d
fd01d960ca2725e756f9e852045ab8a1d971c8b5881c0883d87f73a8278f79d4
SH256 hash:
346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d
MD5 hash:
a334499e4fbda3a99a0bdc96b6bf64c5
SHA1 hash:
adec117f2bd7e77fd2335296f806a03e60dba983
Link:
https://www.unpac.me/results/f678e86d-ae27-446e-8249-471a7672a2ee/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/346a4ca2e508/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/346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

RemcosRAT

Executable exe 346a4ca2e508923bcf0e4c0d73a2ee06d91bd436b8db4981ab9ecb16e6f5110d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2260177/
Cape
Cape
https://www.capesandbox.com/analysis/293421/

Comments


Avatar
zbet commented on 2022-07-22 13:58:55 UTC

url : hxxp://79.110.62.213/KVD.exe