MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a
SHA3-384 hash: 19d490b7c5234c8f3803cdca8b24a2a0f440ceade9432da396baab9819d18d565c7fb66e807e74ee5e21c16ea7bbac94
SHA1 hash: bfbcb5d48fb4ab25d52e4e1bedf37a4e7a4a3cab
MD5 hash: 679104fb0479ff61c4b5e4b88f77d94b
humanhash: kitten-sweet-alaska-double
File name:679104fb0479ff61c4b5e4b88f77d94b
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:6'656 bytes
First seen:2023-02-03 04:55:59 UTC
Last seen:2023-02-03 07:32:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 192:zU3efq7iEM9gdH98dfQbLE5lF22vjWwID:Q3efq7iEM9gdH98dfgLE5lI2vjlI
Threatray 2'572 similar samples on MalwareBazaar
TLSH T1D2D1D910E7FC9233DEB74B74A9BB73410378B31654139F6D68C062175D52E864762BB1
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 zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
679104fb0479ff61c4b5e4b88f77d94b
Verdict:
Malicious activity
Analysis date:
2023-02-03 04:57:51 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/41f55b8d-da00-4496-9407-fe790ccc8e3a

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/359733/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.63524.28963.9724.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63dc93e21c9cbf7d625581bf/reports/708e07de-9834-47cc-a7c0-a82332aa8b78/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/f453ff35-3f9f-4cd2-b2f6-17e3c93f611e
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1164821
Signature
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
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
Performs DNS queries to domains with low reputation
Sigma detected: Remcos
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 797592 Sample: ur5w32dEZv.exe Startdate: 03/02/2023 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 Multi AV Scanner detection for submitted file 2->63 65 6 other signatures 2->65 7 ur5w32dEZv.exe 16 7 2->7         started        12 Romgl.exe 14 4 2->12         started        14 Romgl.exe 3 2->14         started        process3 dnsIp4 45 web.fe.1drv.com 7->45 53 3 other IPs or domains 7->53 35 C:\Users\user\AppData\Roaming\...\Romgl.exe, PE32 7->35 dropped 37 C:\Users\user\...\Romgl.exe:Zone.Identifier, ASCII 7->37 dropped 39 C:\Users\user\AppData\...\ur5w32dEZv.exe.log, ASCII 7->39 dropped 67 Performs DNS queries to domains with low reputation 7->67 69 Encrypted powershell cmdline option found 7->69 71 Injects a PE file into a foreign processes 7->71 16 ur5w32dEZv.exe 2 14 7->16         started        19 powershell.exe 16 7->19         started        47 192.168.2.1 unknown unknown 12->47 49 web.fe.1drv.com 12->49 55 3 other IPs or domains 12->55 73 Multi AV Scanner detection for dropped file 12->73 75 Machine Learning detection for dropped file 12->75 21 powershell.exe 12->21         started        23 Romgl.exe 12->23         started        51 web.fe.1drv.com 14->51 57 3 other IPs or domains 14->57 25 powershell.exe 14->25         started        27 Romgl.exe 14->27         started        file5 signatures6 process7 dnsIp8 41 top.thekillforabuse1.xyz 195.178.120.12, 1068, 49700 HEXAGLOBE-ASFR unknown 16->41 43 geoplugin.net 178.237.33.50, 49701, 80 ATOM86-ASATOM86NL Netherlands 16->43 29 conhost.exe 19->29         started        31 conhost.exe 21->31         started        33 conhost.exe 25->33         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a/
Threat name:
ByteCode-MSIL.Trojan.Casdet
Create hunting rule
Status:
Malicious
First seen:
2023-02-01 17:20:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ie2l3av35j4bapiogjzi36cwq4hkulabrc2ziiyrlr6xpgzl7a5a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
1ad7a11b90fe0a21efb62ed36e1e9b1de9071cd6e73a59caca933aa81ea54d94
RemcosRAT
4ca9d922b73c939978d33effd01f5e58928a0390cd41980455db096a5ca61255
RemcosRAT
5408a52c558da8bea3d412f4eaa8e633b394c74e083c3102661a0e356e490b97
RemcosRAT
56661b9e180b6ee75e933cb57222552d55bfb59f4b408feea3b51ee9bcf2bc93
RemcosRAT
6e7342a71d1839f461df4027f3e01bdc607bf16605900d41167631805b598d8c
RemcosRAT
a517027dcf36e8c7d3d029083e39f180b8bcd718c84c108338b00eadb43e918a
RemcosRAT
c9c3286b15a454a72205e4fb6af2e73d26d7cf0754f16ba1ca5ecbac1452952e
RemcosRAT
d02d7e2e26146f8e427beb6b841da4988c4b8a6b1c981ad734cbc9bab44ee068
RemcosRAT
e359436a84893d01ef907930d534a4e7688da9e02efcf42875bd69410dfff89c
RemcosRAT
+ 2'562 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:purecrypter family:remcos botnet:remotehost downloader loader persistence rat
Link:
https://tria.ge/reports/230203-fkntbaec9y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
PureCrypter
Remcos
Malware Config
C2 Extraction:
https://onedrive.live.com/download?cid=A113DD34A0D77810&resid=A113DD34A0D77810%21125&authkey=AIgE8y9D-kUp_qA
top.thekillforabuse1.xyz:1068
Unpacked files
SH256 hash:
4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a
MD5 hash:
679104fb0479ff61c4b5e4b88f77d94b
SHA1 hash:
bfbcb5d48fb4ab25d52e4e1bedf37a4e7a4a3cab
Link:
https://www.unpac.me/results/7943af38-6214-48ff-8e1e-83bf6fe31c3d/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4134bd82bbea/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

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 4134bd82bbea78103d0e32728df856870eaa2c0188b59423115c7d779b2bf83a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2528597/
Cape
Cape
https://www.capesandbox.com/analysis/359733/

Comments


Avatar
zbet commented on 2023-02-03 04:56:11 UTC

url : hxxp://212.193.30.4/255/vbc.exe