MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d
SHA3-384 hash: 65a3fbf82525939f27b14fd8bbee52ff747590699972acc5e3bb015f402ad48b6ca7e30ded5de48213a74b941264a728
SHA1 hash: 30260b21621217c09a3b2a530dde8e63f96e192e
MD5 hash: 225311076059db14eb6fc8aad5be4071
humanhash: neptune-maine-mike-mockingbird
File name:SecuriteInfo.com.W32.AIDetectNet.01.16518.828
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'383'936 bytes
First seen:2022-08-10 09:54:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:n9K4dxXGUlemgMkaq3swj4aB6MaKbrCHG1NDFU4gPZk7Hq5gqmBr:9ldxXrlemgMM3NkMayrCHWhUpPO7Hqu
Threatray 1'754 similar samples on MalwareBazaar
TLSH T1D055D0942F51CC98CE62A3FE8256E35029F43DF4B0A1056D2A16B52135BF7330F6EA9D
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon f0f8e84dd5e4e4f8 (1 x RemcosRAT)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
271
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.W32.AIDetectNet.01.16518.828
Verdict:
Malicious activity
Analysis date:
2022-08-10 09:56:13 UTC
Tags:
keylogger remcos stealer
Link:
https://app.any.run/tasks/499d3483-b74c-410f-abca-fb50e60f4b67

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/297573/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.16518.828.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62f380b37a5eee504806840c/reports/1d726785-a6d1-4949-abc4-a7d772b2c0b4/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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6e59edcd-2c5b-4934-b884-7964022005fa
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1049101
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 681595 Sample: SecuriteInfo.com.W32.AIDete... Startdate: 10/08/2022 Architecture: WINDOWS Score: 100 36 Multi AV Scanner detection for domain / URL 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 7 other signatures 2->42 7 SecuriteInfo.com.W32.AIDetectNet.01.16518.exe 2 2->7         started        process3 file4 30 SecuriteInfo.com.W...et.01.16518.exe.log, ASCII 7->30 dropped 50 Encrypted powershell cmdline option found 7->50 52 Writes to foreign memory regions 7->52 54 Allocates memory in foreign processes 7->54 56 Injects a PE file into a foreign processes 7->56 11 InstallUtil.exe 2 15 7->11         started        15 powershell.exe 18 7->15         started        17 backgroundTaskHost.exe 1 14 7->17         started        signatures5 process6 dnsIp7 32 mail.deiomino.icu 192.30.89.27, 45547, 49805, 49813 CLOUDSINGULARITYCA Canada 11->32 34 geoplugin.net 178.237.33.50, 49815, 80 ATOM86-ASATOM86NL Netherlands 11->34 58 Maps a DLL or memory area into another process 11->58 60 Installs a global keyboard hook 11->60 19 InstallUtil.exe 1 11->19         started        22 InstallUtil.exe 2 11->22         started        24 InstallUtil.exe 1 11->24         started        26 InstallUtil.exe 11->26         started        28 conhost.exe 15->28         started        signatures8 process9 signatures10 44 Tries to steal Instant Messenger accounts or passwords 19->44 46 Tries to steal Mail credentials (via file / registry access) 19->46 48 Tries to harvest and steal browser information (history, passwords, etc) 22->48
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d/
Threat name:
Win32.Trojan.Tiggre
Create hunting rule
Status:
Malicious
First seen:
2022-08-10 09:55:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6rzw775xzksvpv4w6opdozciwy34s77sjwgppty7bbuu4p2a6iwq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
22f9a7a8f42d3d3c49c8868d8013d56e54fcdcde9c020fb03bad42903f77279c
RemcosRAT
253ec23e3db30683bfed20ee25778f5632b700aaf411c498cb092ea18e0eb5cc
RemcosRAT
549fe9a927aac026017a15738e4e4f82ec626a4396472eed653095cbe760a79a
RemcosRAT
6d16f6ecb3a446d0c6bfa0fc7a47dabac2e63cebfa426f4502a5bcecf378c645
RemcosRAT
77ed7f099d383a993b3ee6383ec343a3eda6b117f53febd01a1dc10c63cfea09
RemcosRAT
9433ec5758b48a6193b6b80ac03df0acf553d2ebeba04d84b6dbec9558a6e035
RemcosRAT
a6abf72d95dac9ba6e6e4b53d9cbcd013846660a18ac5b9eeacb6cd87c783a2c
RemcosRAT
b2cfbcebd445e279de69ffa4169f678dda459b3ef194070a7ea3fd1ecf82f40e
RemcosRAT
f9d08335a32ecefc895aacd51ffbf87e242e681b96b4515b4e3a6627b538f229
RemcosRAT
+ 1'744 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat
Link:
https://tria.ge/reports/220810-lxrzdsaed7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
mail.deiomino.icu:45547
Unpacked files
SH256 hash:
d3e91d69723e0d85c12a43f8b2183a750d6cd495a7715bf6913667d973a25f1b
MD5 hash:
d2f1b70ee9d906dd90da08a54150879b
SHA1 hash:
9d3a87bb0454509a02bd046e4d993dd1b6364d81
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/1f03a1ca-0957-4750-85e2-1bc6a0402e14/
Parent samples :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 hash:
a6acfe617040a5005be0d1675756dc9f09596d3bb2bb3ebc8a2c6881b8c4cfd7
MD5 hash:
db843358b89f4074346cab346720ab06
SHA1 hash:
94d77a5f2d66f20baf557ad30c3ab284665980d9
Link:
https://www.unpac.me/results/1f03a1ca-0957-4750-85e2-1bc6a0402e14/
SH256 hash:
6430725ee039bfa6dcc57dff9371eb0499ee8a5190f5603e90be2b2bb2e8977d
MD5 hash:
58b78c76af61f9e4c9d20b263e3ca195
SHA1 hash:
1cbeeb3fbeea04ffded0e92851f4743ab5b24a06
Link:
https://www.unpac.me/results/1f03a1ca-0957-4750-85e2-1bc6a0402e14/
SH256 hash:
dd214037d47f01b9bfa308a0daaaed6f666a58ca614ed08280830e9cf09110c7
MD5 hash:
fe83d219a21c0e6055abccf1d0951dc8
SHA1 hash:
417df8acd13a2f72e9515902a129376b3f46ad3e
Link:
https://www.unpac.me/results/1f03a1ca-0957-4750-85e2-1bc6a0402e14/
SH256 hash:
f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d
MD5 hash:
225311076059db14eb6fc8aad5be4071
SHA1 hash:
30260b21621217c09a3b2a530dde8e63f96e192e
Link:
https://www.unpac.me/results/1f03a1ca-0957-4750-85e2-1bc6a0402e14/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4736fffb7ca/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/f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d

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_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 f4736fffb7caa557d796f39e376448b637c97ff24d8cf7cf1f08694e3f40f22d

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/297573/
  
URLhaus
https://urlhaus.abuse.ch/url/2270872/
  
Delivery method
Distributed via web download

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