MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ae0237a900a2c83c499e263a3716761ac3104ee3a2bca1d52fc139e7877756. 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: 9


Intelligence 9 IOCs 1 YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99ae0237a900a2c83c499e263a3716761ac3104ee3a2bca1d52fc139e7877756
SHA3-384 hash: 0aac65c1c9ee45e54c00aa65fe7fb43c40e86de2975607b50b3e8fafa9476ab0da5dc606825e92221afa687775bfb1a6
SHA1 hash: 9278d61fe3200365ab0fb41cd9075b70f570df63
MD5 hash: accf136f0c8690cc7048ca72354835be
humanhash: september-nuts-tennessee-fifteen
File name:NewInquiry -20220309E8 West Trading B.V..exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:48'640 bytes
First seen:2022-03-29 12:42:13 UTC
Last seen:2022-03-29 13:50:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:775hfzQZRyvvJ8m4Ax55ApuTpbTLh4ABO8OA1ie6jXjzSI+BqzVSUaq1LyJdzBka:7V1z2gh94AhAwTpTh4Awk67hU2yaA
Threatray 2'730 similar samples on MalwareBazaar
TLSH T13A234D0CB38CB621C27C6A3980EB085887F5E5FB3A13D70B9D85166C5B53FE66616B07
File icon (PE):PE icon
dhash icon 489669d8d8699648 (53 x AgentTesla, 24 x SnakeKeylogger, 16 x AveMariaRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
136.144.41.64:4675

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
136.144.41.64:4675 https://threatfox.abuse.ch/ioc/460937/

Intelligence

File Origin
# of uploads :
2
# of downloads :
289
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/259212/
Detection(s):
SecuriteInfo.com.W32.MSIL_Dldr.B.genEldorado.27655.26360.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/6242fed79253b276b79bb9ac/reports/86c7f9f0-f4d0-45b0-9863-306136ee89c4/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2967b1bc-024e-4ac9-881e-8239539c6ae0
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/966708
Signature
.NET source code contains potential unpacker
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
Found malware configuration
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 submitted file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 599198 Sample: NewInquiry -20220309E8 West... Startdate: 29/03/2022 Architecture: WINDOWS Score: 100 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 7 other signatures 2->62 7 NewInquiry -20220309E8 West Trading B.V..exe 16 7 2->7         started        12 Zvieez.exe 14 3 2->12         started        14 Zvieez.exe 3 2->14         started        process3 dnsIp4 46 trieutin.com 119.17.253.214, 443, 49753, 49781 NETNAM-AS-APNetnamCompanyVN Viet Nam 7->46 38 C:\Users\user\AppData\Roaming\...\Zvieez.exe, PE32 7->38 dropped 40 C:\Users\user\...\Zvieez.exe:Zone.Identifier, ASCII 7->40 dropped 42 NewInquiry -202203...rading B.V..exe.log, ASCII 7->42 dropped 64 Writes to foreign memory regions 7->64 66 Injects a PE file into a foreign processes 7->66 16 MSBuild.exe 2 7->16         started        20 cmd.exe 1 7->20         started        68 Machine Learning detection for dropped file 12->68 22 cmd.exe 1 12->22         started        24 cmd.exe 14->24         started        file5 signatures6 process7 dnsIp8 44 136.144.41.64, 4675, 49778 WORLDSTREAMNL Netherlands 16->44 48 Contains functionality to steal Chrome passwords or cookies 16->48 50 Contains functionality to inject code into remote processes 16->50 52 Contains functionality to steal Firefox passwords or cookies 16->52 54 Delayed program exit found 16->54 26 conhost.exe 20->26         started        28 timeout.exe 1 20->28         started        30 conhost.exe 22->30         started        32 timeout.exe 1 22->32         started        34 conhost.exe 24->34         started        36 timeout.exe 24->36         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99ae0237a900a2c83c499e263a3716761ac3104ee3a2bca1d52fc139e7877756/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-03-29 12:43:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgxaen5jacrmqpcjtytdunywoynmgeco4orlziovf7attz4ho5la._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
2d6b7a5513ed0cb451701bb494fb87382061195c115ede553f062b4fc0fd4f97
RemcosRAT
4ce893ef0bd7abeb769c3c3e57863700f41882befbee770733f0da86e015e7cb
RemcosRAT
724b6b5e627086ff22b9f2d2c045faa880dea62f513a694058b452aa1b6cad6f
RemcosRAT
8342c94ddfd4cca232e9d1cd5faed48fdce02a694b062606b938401b502a0c30
RemcosRAT
a4b821d0cadc92c344c8b60f5290a5e5520fd1fb3813b88c529c48d285b72c63
RemcosRAT
aeab503c3cd3b3d5206ba0ae473f62901a5e0a2f5ac342317b575d625d8061cc
RemcosRAT
d98541f0e7659a620cfd349405facb991e7e7973e90f7bef7f7882315023e96f
RemcosRAT
+ 2'720 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/220329-pxhbqsdhd9/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
136.144.41.64:4675
Unpacked files
SH256 hash:
99ae0237a900a2c83c499e263a3716761ac3104ee3a2bca1d52fc139e7877756
MD5 hash:
accf136f0c8690cc7048ca72354835be
SHA1 hash:
9278d61fe3200365ab0fb41cd9075b70f570df63
Link:
https://www.unpac.me/results/6e5b3b43-70d6-4b92-91fc-f06dc68d9444/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/99ae0237a900/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/99ae0237a900a2c83c499e263a3716761ac3104ee3a2bca1d52fc139e7877756

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:buerloader_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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_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

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/259212/

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