MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1. 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 1 YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1
SHA3-384 hash: 4a8961dc300e177d9be398ff052af1d2f31b2b83469129089138c6ea483d9824679b3cdd25c1cdaf6559014943b8b99d
SHA1 hash: 8e8f32cce25685162c3abea39e5c0089b8f47185
MD5 hash: ee94e19edb143b9ac66b794be1077e05
humanhash: stairway-mike-social-south
File name:Novo pedidoWJO-001.pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:766'464 bytes
First seen:2021-08-04 16:36:01 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 5d5434596ea18ae43a7aaca0d4518a1b (2 x RemcosRAT)
ssdeep 12288:63obX9TMexlCF3fcwsqBH+fkmgUztnudGIJb3:Pz9rCF3fcwsY+fRgUTA
Threatray 365 similar samples on MalwareBazaar
TLSH T1C7F45A5190B7443EE27E39790C8DEE7E7A4EAB142A2B870E16ED2E6D5718B9070141CF
dhash icon 2a156a6a49c8c8c8 (5 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
79.134.225.73:4693

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
79.134.225.73:4693 https://threatfox.abuse.ch/ioc/165698/

Intelligence

File Origin
# of uploads :
1
# of downloads :
164
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Novo pedidoWJO-001.pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-04 16:39:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/de704a7b-70c6-4926-a215-6be9d2c67bc1

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/176401/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.18216.16700.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching the default Windows debugger (dwwin.exe)
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Loki
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/046da531-87e6-435f-87d1-a9588d4bb69b
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/827045
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
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 a thread in another existing process (thread injection)
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Tries to harvest and steal browser information (history, passwords, etc)
Uses an obfuscated file name to hide its real file extension (double extension)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 459476 Sample: Novo pedidoWJO-001.pdf.exe Startdate: 04/08/2021 Architecture: WINDOWS Score: 100 62 Found malware configuration 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Detected Remcos RAT 2->66 68 5 other signatures 2->68 7 Novo pedidoWJO-001.pdf.exe 1 19 2->7         started        12 Gpdhuqw.exe 16 2->12         started        14 Gpdhuqw.exe 16 2->14         started        process3 dnsIp4 38 onedrive.live.com 7->38 40 ebsenq.dm.files.1drv.com 7->40 42 dm-files.fe.1drv.com 7->42 34 C:\Users\Public\Libraries\...behaviorgraphpdhuqw.exe, PE32 7->34 dropped 70 Writes to foreign memory regions 7->70 72 Allocates memory in foreign processes 7->72 74 Creates a thread in another existing process (thread injection) 7->74 16 mobsync.exe 2 7->16         started        44 onedrive.live.com 12->44 48 2 other IPs or domains 12->48 76 Injects a PE file into a foreign processes 12->76 20 mobsync.exe 12->20         started        46 onedrive.live.com 14->46 50 2 other IPs or domains 14->50 22 mshta.exe 14->22         started        file5 signatures6 process7 dnsIp8 36 maxwealth123.ddns.net 79.134.225.73, 4693, 49720, 49725 FINK-TELECOM-SERVICESCH Switzerland 16->36 54 Contains functionality to steal Chrome passwords or cookies 16->54 56 Contains functionality to capture and log keystrokes 16->56 58 Contains functionality to inject code into remote processes 16->58 60 2 other signatures 16->60 24 mobsync.exe 13 16->24         started        28 mobsync.exe 1 16->28         started        30 mobsync.exe 1 16->30         started        32 2 other processes 16->32 signatures9 process10 dnsIp11 52 192.168.2.1 unknown unknown 24->52 78 Tries to harvest and steal browser information (history, passwords, etc) 24->78 signatures12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-08-04 16:36:06 UTC
AV detection:
15 of 27 (55.56%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mwjyxzeionw5yxekpqujd3cfgdm5e76sokxk6gjkhpsemg2gscyq._file
Verdict:
malicious
Similar samples:
0a0f707663752fcee384add20de2ee2c3f2061781aa8f08266b155317eb4662d
RemcosRAT
10f675a780a5814df0a79b673213a2ed2989816a517797df5656551b0819789c
RemcosRAT
38ba862149962bc5a10825a2b818391624cda439fcb3f6212b75d84eeeb4f70c
RemcosRAT
4a84faebc419ed0cddbc9e37b337a3090a01051d3ed7d1650c2845369b9a1d63
RemcosRAT
75b6c107ad6001f2588229fbfdb96dc998fe9f3e44f8df69c98096aceea9aa73
RemcosRAT
c0dbfce6d1904f32b39ef57d1f59595099171f5e038ad1003a9fc5f9c3ec92d2
RemcosRAT
fad40e1841789cfbef3c9f09b4e557b928597506cd8b93d8eae51cef2ba3cf3f
RemcosRAT
fd866b4e18b49ef0232eda27280a0d56a9e408792bba4cddded1961fe64e7bf3
RemcosRAT
+ 355 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:max persistence rat
Link:
https://tria.ge/reports/210804-4g9wmwgsx6/
Behaviour
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Program crash
Adds Run key to start application
Remcos
Malware Config
C2 Extraction:
maxwealth123.ddns.net:4693
Unpacked files
SH256 hash:
c873bd224bbf6f82aa169f079016ebdf7690b40a7db5dd8cfefd26404a9d50ca
MD5 hash:
d328f4ade4dd3cd77b3c055c6a7a7937
SHA1 hash:
5d2437502c20efaadd44d27bd5f2f748bdb48512
Link:
https://www.unpac.me/results/e6db13b5-431c-49d3-8da4-c5dcc9594308/
SH256 hash:
dbc3641d60322fe3e6e27c44fb896a95873bd4ee99ec1ba49354aaf733fef7c9
MD5 hash:
f1ee413680fe649101cdfbe1beaf81a1
SHA1 hash:
4911a6cb304025b201632f732a6c97f36cd14172
Link:
https://www.unpac.me/results/e6db13b5-431c-49d3-8da4-c5dcc9594308/
SH256 hash:
65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1
MD5 hash:
ee94e19edb143b9ac66b794be1077e05
SHA1 hash:
8e8f32cce25685162c3abea39e5c0089b8f47185
Link:
https://www.unpac.me/results/e6db13b5-431c-49d3-8da4-c5dcc9594308/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/65938be48873/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/65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1

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_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/176401/

Comments