MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e
SHA3-384 hash: 083de05189b18b85817a72f60a1be71729852857cd5a1ce637f8b8274f7b704aaa76a432b755ab7081a56ddcd8a093b2
SHA1 hash: 067ef223b8f062ec702dd5a0dadcaeb5d5117fd6
MD5 hash: b6334b89e6291db1660a97cb24f244e0
humanhash: fourteen-fillet-sixteen-florida
File name:Zjmfdsildvisdrzmzsuimcpzrcclstubpz.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:680'448 bytes
First seen:2021-08-31 18:31:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b80f4f0a086ef8167169248061f9b4a4 (4 x RemcosRAT, 1 x AveMariaRAT)
ssdeep 12288:732D6sAniEeWwhvT0Xq7FZlU5i5DZ/iFXCj:7mYhwhvTf7v5Z//
Threatray 1'070 similar samples on MalwareBazaar
TLSH T164E48EA672C6E47AD12A523F4D4F6788BE293C413A59BDC6DCF02D544B3054930AE3AF
dhash icon 4cca4c67d3261aca (6 x RemcosRAT, 4 x Formbook, 2 x AveMariaRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
236
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Zjmfdsildvisdrzmzsuimcpzrcclstubpz.exe
Verdict:
Malicious activity
Analysis date:
2021-08-31 18:34:51 UTC
Tags:
rat remcos trojan keylogger
Link:
https://app.any.run/tasks/87ddd3ca-dc61-428e-8fc9-9b353890dae0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/184289/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/534fa81c-ab09-48b0-bc2f-1f03bd8e81c6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/842901
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Firefox passwords or cookies
Creates a thread in another existing process (thread injection)
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 475332 Sample: Zjmfdsildvisdrzmzsuimcpzrcc... Startdate: 31/08/2021 Architecture: WINDOWS Score: 100 40 sinzu3.kozow.com 2->40 42 sinzu2.camdvr.org 2->42 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 Detected Remcos RAT 2->60 62 2 other signatures 2->62 9 Zjmfdsildvisdrzmzsuimcpzrcclstubpz.exe 1 23 2->9         started        14 Zjmfdsi.exe 2->14         started        16 Zjmfdsi.exe 2->16         started        signatures3 process4 dnsIp5 50 onedrive.live.com 9->50 52 dm-files.fe.1drv.com 9->52 54 cvnbra.dm.files.1drv.com 9->54 38 C:\Users\Public\Libraries\...\Zjmfdsi.exe, PE32 9->38 dropped 70 Writes to foreign memory regions 9->70 72 Allocates memory in foreign processes 9->72 74 Creates a thread in another existing process (thread injection) 9->74 76 Injects a PE file into a foreign processes 9->76 18 mshta.exe 2 3 9->18         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 9->24         started        file6 signatures7 process8 dnsIp9 44 sinzu5.giize.com 185.157.161.92, 2404, 49734, 49735 OBE-EUROPEObenetworkEuropeSE Sweden 18->44 46 sinzu7.camdvr.org 18->46 48 5 other IPs or domains 18->48 64 Contains functionality to inject code into remote processes 18->64 66 Contains functionality to steal Firefox passwords or cookies 18->66 68 Delayed program exit found 18->68 26 reg.exe 1 22->26         started        28 conhost.exe 22->28         started        30 cmd.exe 1 24->30         started        32 conhost.exe 24->32         started        signatures10 process11 process12 34 conhost.exe 26->34         started        36 conhost.exe 30->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-08-31 18:32:05 UTC
AV detection:
7 of 45 (15.56%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xrryo54ljigk6ndrtzg6pdi6u3wns25ebixb4cmxv2i57yrbqb7a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
11f6a46954cdec78fec52771521926ff6917af81f79e3dc1198a38571b7d7519
RemcosRAT
62960caf3d007638be89631e502733f30c42a9ba0269e8c00457c9dec10e9136
RemcosRAT
7eb677c1c5c60d34da90cab2b4ea019c500b5c3db6964cc14849dbe2f9f5fa30
RemcosRAT
b9384216a5aea20cd398e51c6549bb84d6b252f3fde114010e3cc0c60b1e2b13
RemcosRAT
bb63c61554ccc2caa79eec3705c3e4ce41626e88f375a8a1bc5b514e489b0f04
RemcosRAT
dc1bb96ddee60e15d3344fc4b0413634a54974ef9e854628157800c9d695f028
RemcosRAT
+ 1'060 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/210831-hjehjw1lqe/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
sinzu1.camdvr.org:2404
sinzu2.camdvr.org:2404
sinzu3.kozow.com:2404
sinzu4.ddnsgeek.com:2404
sinzu5.giize.com:2404
sinzu6.camdvr.org:2404
sinzu7.camdvr.org:2404
Unpacked files
SH256 hash:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
Link:
https://www.unpac.me/results/51348bf1-0db9-46f0-8884-b7653f146c6d/
SH256 hash:
bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e
MD5 hash:
b6334b89e6291db1660a97cb24f244e0
SHA1 hash:
067ef223b8f062ec702dd5a0dadcaeb5d5117fd6
Link:
https://www.unpac.me/results/51348bf1-0db9-46f0-8884-b7653f146c6d/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/bc6387778b4a/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/bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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

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/184289/

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