MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f
SHA3-384 hash: 213478796cb9076cb029024f6798c264d8a70a8671fabddb849367ae50ed2c1e6661b6e08c696187e4415120dc324cf1
SHA1 hash: 10214c88e4936cd2fb152f53e7ae47a66994110f
MD5 hash: 0fbddd861cd9d2fe373e0d3d704c5438
humanhash: football-lake-whiskey-oxygen
File name:SD09876567000089.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'237'504 bytes
First seen:2024-01-08 08:10:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:4QbdhfWNFdxQL95o7kSBsoQTvrJHr6lx5kdpq:4GDONFdqZqkSBs9DVC5kdpq
TLSH T18A45AE2533E9621AE4F60739EC7A90CD1A36FE996E00CB2F2555321C5C727436F12BB6
TrID 30.6% (.SCR) Windows screen saver (13097/50/3)
24.5% (.EXE) Win64 Executable (generic) (10523/12/4)
15.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win32 Executable (generic) (4505/5/1)
4.8% (.ICL) Windows Icons Library (generic) (2059/9)
dhash icon 6ce0ccccd4f0f0d4 (3 x RemcosRAT, 2 x SnakeKeylogger, 2 x AgentTesla)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
320
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f.exe
Verdict:
Malicious activity
Analysis date:
2024-01-08 08:28:19 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/e6d9df04-75a7-40cd-91e8-10243c535a54

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/469843/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Sending an HTTP GET request
Reading critical registry keys
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Sending a TCP request to an infection source
Stealing user critical data
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed remcos stealer
Link:
https://www.filescan.io/uploads/659bae1b5d1422b2080eb1c1/reports/b53bda98-717d-4162-9acd-53a3ab91329e/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f91dda39-c0fe-4160-8747-fa8c4914345d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.spre.phis.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1371098
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates autostart registry keys with suspicious names
Creates executable files without a name
Delayed program exit found
Drops PE files to the startup folder
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Sigma detected: Remcos
Snort IDS alert for network traffic
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)
Tries to steal Mail credentials (via file registry)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1371098 Sample: SD09876567000089.scr.exe Startdate: 08/01/2024 Architecture: WINDOWS Score: 100 78 geoplugin.net 2->78 84 Snort IDS alert for network traffic 2->84 86 Multi AV Scanner detection for domain / URL 2->86 88 Found malware configuration 2->88 90 16 other signatures 2->90 10 SD09876567000089.scr.exe 3 2->10         started        13 remcos.exe 2 2->13         started        15 remcos.exe 2->15         started        17 .exe 2->17         started        signatures3 process4 signatures5 122 Contains functionality to bypass UAC (CMSTPLUA) 10->122 124 Contains functionalty to change the wallpaper 10->124 126 Contains functionality to steal Chrome passwords or cookies 10->126 130 4 other signatures 10->130 19 SD09876567000089.scr.exe 2 4 10->19         started        23 powershell.exe 13 10->23         started        128 Injects a PE file into a foreign processes 13->128 25 remcos.exe 2 15 13->25         started        28 powershell.exe 13->28         started        30 powershell.exe 15->30         started        32 remcos.exe 15->32         started        34 powershell.exe 17->34         started        36 .exe 17->36         started        process6 dnsIp7 72 C:\ProgramData\Remcos\remcos.exe, PE32 19->72 dropped 92 Creates autostart registry keys with suspicious names 19->92 38 remcos.exe 3 19->38         started        74 C:\Users\user\AppData\Roaming\...\.exe, PE32 23->74 dropped 94 Creates executable files without a name 23->94 96 Drops PE files to the startup folder 23->96 98 Powershell drops PE file 23->98 41 conhost.exe 23->41         started        80 107.175.229.139, 49730, 49733, 8087 AS-COLOCROSSINGUS United States 25->80 82 geoplugin.net 178.237.33.50, 49735, 80 ATOM86-ASATOM86NL Netherlands 25->82 76 C:\ProgramData\Remcos\logs.dat, data 25->76 dropped 100 Maps a DLL or memory area into another process 25->100 102 Installs a global keyboard hook 25->102 43 remcos.exe 25->43         started        45 remcos.exe 25->45         started        47 remcos.exe 25->47         started        55 7 other processes 25->55 49 conhost.exe 28->49         started        51 conhost.exe 30->51         started        53 conhost.exe 34->53         started        file8 signatures9 process10 signatures11 104 Antivirus detection for dropped file 38->104 106 Multi AV Scanner detection for dropped file 38->106 108 Tries to steal Mail credentials (via file registry) 38->108 116 2 other signatures 38->116 57 remcos.exe 2 1 38->57         started        60 powershell.exe 12 38->60         started        110 Tries to steal Instant Messenger accounts or passwords 43->110 112 Tries to steal Mail credentials (via file / registry access) 43->112 114 Tries to harvest and steal browser information (history, passwords, etc) 47->114 62 WerFault.exe 55->62         started        64 WerFault.exe 55->64         started        66 WerFault.exe 55->66         started        process12 signatures13 118 Writes to foreign memory regions 57->118 120 Maps a DLL or memory area into another process 57->120 68 iexplore.exe 57->68         started        70 conhost.exe 60->70         started        process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-01-08 04:49:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
96
AV detection:
25 of 36 (69.44%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ci6e6k3ja3sivpjnkqoxruifadsfracl7wpygzindj2ikenhqv7q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:pc rat
Link:
https://tria.ge/reports/240108-j29nwsfac5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Drops startup file
Remcos
Malware Config
C2 Extraction:
107.175.229.139:8087
Unpacked files
SH256 hash:
45c7b64a55dca23ee1239649e03a7c361813dbcfc2a0817b0d8e94c907d6ed4b
MD5 hash:
fb1bc19121c4e190d83672bc71b493f0
SHA1 hash:
c3488b969ba578e28ee360be24b6416425a224a0
Link:
https://www.unpac.me/results/f3552b3a-0ad4-4925-9ce2-fd2dd41903f1/
SH256 hash:
95dfdb588c7018babd55642c48f6bed1c281cecccbd522dd40b8bea663686f30
MD5 hash:
8d3c6a404a9b6526d082de3e0370e10e
SHA1 hash:
bef3f3c4d9b076a60bdb047f5b8439662691b1d3
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/f3552b3a-0ad4-4925-9ce2-fd2dd41903f1/
Parent samples :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 hash:
7275249600d15a5919ce1f809e69ebe0f56de0dde0e5ac10e9c8755e3627bf3e
MD5 hash:
fd5a7ab3b576affd44ed9fc0a3c537fa
SHA1 hash:
0493730b432688a66de5cda6cbaeaf0bb0d17e38
Link:
https://www.unpac.me/results/f3552b3a-0ad4-4925-9ce2-fd2dd41903f1/
SH256 hash:
123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f
MD5 hash:
0fbddd861cd9d2fe373e0d3d704c5438
SHA1 hash:
10214c88e4936cd2fb152f53e7ae47a66994110f
Link:
https://www.unpac.me/results/f3552b3a-0ad4-4925-9ce2-fd2dd41903f1/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/123c4f2b6906/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

RemcosRAT

Executable exe 123c4f2b6906e48abd2d541d78d10500e458804bfd9f83650d1a748511a7857f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/469843/

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