MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546
SHA3-384 hash: b401ded8f3cb2b3507e61f2d812ba704985c77cb3357ab5df69f1ce5cd340b8e4b4f3b17d51276be073b91064d854356
SHA1 hash: 890f172fe67eb77b0a397057f2e2c08464a2a1d4
MD5 hash: 3b5e189cbf4aaaccd9df0e3e4222eb26
humanhash: december-pennsylvania-gee-december
File name:SecuriteInfo.com.Win32.CrypterX-gen.3492.13094
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'007'616 bytes
First seen:2022-11-25 06:28:54 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:bz+9U376CDkFg/IyXtTmNc/emtUlwDNRKPWXCMRZBz:FZkoXYcGmtTDWOyMRZB
Threatray 2'262 similar samples on MalwareBazaar
TLSH T19C25E0286676BE32C63CDD75C2C265183FE0CF519933FA56EEB732840E413662E93649
TrID 66.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.0% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.CrypterX-gen.3492.13094
Verdict:
Malicious activity
Analysis date:
2022-11-25 06:30:03 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/4ee5154a-21f5-4a67-83c9-59a1deb36f2e

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/338296/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.3492.13094.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Creating a file
Creating a process from a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm packed
Link:
https://www.filescan.io/uploads/638060af559d07a06f475501/reports/980d77d2-8f86-4d35-becc-5002bb06e248/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/b1a6a082-3f54-4161-91a3-d0225d9b18fe
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1120891
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in 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)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 753608 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 25/11/2022 Architecture: WINDOWS Score: 100 86 Malicious sample detected (through community Yara rule) 2->86 88 Antivirus detection for URL or domain 2->88 90 Antivirus detection for dropped file 2->90 92 9 other signatures 2->92 11 SecuriteInfo.com.Win32.CrypterX-gen.3492.13094.exe 6 2->11         started        15 krVRhKaDhWU.exe 5 2->15         started        17 remcos.exe 2->17         started        19 2 other processes 2->19 process3 file4 76 C:\Users\user\AppData\...\krVRhKaDhWU.exe, PE32 11->76 dropped 78 C:\Users\user\AppData\Local\...\tmp1D8E.tmp, XML 11->78 dropped 80 SecuriteInfo.com.W....3492.13094.exe.log, ASCII 11->80 dropped 102 Uses schtasks.exe or at.exe to add and modify task schedules 11->102 104 Injects a PE file into a foreign processes 11->104 21 SecuriteInfo.com.Win32.CrypterX-gen.3492.13094.exe 5 5 11->21         started        24 schtasks.exe 1 11->24         started        106 Multi AV Scanner detection for dropped file 15->106 108 Machine Learning detection for dropped file 15->108 38 3 other processes 15->38 26 remcos.exe 17->26         started        30 schtasks.exe 17->30         started        32 remcos.exe 17->32         started        34 schtasks.exe 19->34         started        36 schtasks.exe 19->36         started        40 3 other processes 19->40 signatures5 process6 dnsIp7 70 C:\ProgramData\Remcos\remcos.exe, PE32 21->70 dropped 72 C:\Users\user\...\aduvrfdhtgqbkrdvqwaxuz.vbs, data 21->72 dropped 74 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 21->74 dropped 42 wscript.exe 1 21->42         started        44 conhost.exe 24->44         started        82 45.139.105.174, 3111, 49697 CMCSUS Italy 26->82 84 geoplugin.net 178.237.33.50, 49698, 80 ATOM86-ASATOM86NL Netherlands 26->84 100 Tries to harvest and steal browser information (history, passwords, etc) 26->100 46 conhost.exe 30->46         started        48 conhost.exe 34->48         started        50 conhost.exe 36->50         started        52 conhost.exe 38->52         started        file8 signatures9 process10 process11 54 cmd.exe 1 42->54         started        process12 56 remcos.exe 5 54->56         started        59 conhost.exe 54->59         started        signatures13 94 Multi AV Scanner detection for dropped file 56->94 96 Machine Learning detection for dropped file 56->96 98 Injects a PE file into a foreign processes 56->98 61 remcos.exe 56->61         started        64 schtasks.exe 56->64         started        process14 signatures15 110 Writes to foreign memory regions 61->110 112 Maps a DLL or memory area into another process 61->112 66 iexplore.exe 61->66         started        68 conhost.exe 64->68         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546/
Threat name:
Win32.Trojan.Taskun
Create hunting rule
Status:
Malicious
First seen:
2022-11-25 03:23:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rbzjypbpbvcazoleucyuv6pxe2uwc4acrdvimdgi3nesnbokivda._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0cb9ffbc77206540a648b96e790d884f5662c114e831533e1eb31b63157e3953
RemcosRAT
139d0b13776f8fea46db2d77f0391b480cf290abcca453aacd2e003e7a618787
RemcosRAT
3ab2ca682019279e28525a8ff1a72e08badba1c0f3012f926bad1528b2b0944a
RemcosRAT
5324e064b98586e1f727eac2ab089af2c466e9b702af73d7fff281e17f725ee8
RemcosRAT
a04d627bf01f18ee5ca0d47dac132c9ae2f12973aa9c54c331170d67967deb7d
RemcosRAT
c8f7124c43eb317024e9e329f6a05b8e278b3c6ac99a2f202406b719dbb815ca
RemcosRAT
cdbd543a70aa9f54daccdf108189026ff621568c8084bef3020049155c4f7eab
RemcosRAT
+ 2'252 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/221125-g8wz9sbg21/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
45.139.105.174:3111
Gathering data
Unpacked files
SH256 hash:
8acb8ff6a5565f9d8b56e2712858db04e577c53906c8045fa43bdf1e7669120a
MD5 hash:
8f6f561ec65b393126f5b648f890e78a
SHA1 hash:
cea6ff88ba56fcfdcf5992b5b35ec2accbd234a3
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/b6d04ac5-1ac1-4ea1-87ea-58afa6d29e2e/
Parent samples :
88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546
0359874ac9be35e969500ffe552298ea0c8056b51c8eac0e3e835c564ef39148
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/b6d04ac5-1ac1-4ea1-87ea-58afa6d29e2e/
SH256 hash:
e1efd8092ad321ef699ab6d478950e3caa99648aacb34377a6d098e6b3390c43
MD5 hash:
47d837831b8691b91cf922b1fc8dbde1
SHA1 hash:
1950c003f249b2241979ae5e749085aa2bc2ed72
Link:
https://www.unpac.me/results/b6d04ac5-1ac1-4ea1-87ea-58afa6d29e2e/
SH256 hash:
88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546
MD5 hash:
3b5e189cbf4aaaccd9df0e3e4222eb26
SHA1 hash:
890f172fe67eb77b0a397057f2e2c08464a2a1d4
Link:
https://www.unpac.me/results/b6d04ac5-1ac1-4ea1-87ea-58afa6d29e2e/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/88729c3c2f0d/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/88729c3c2f0d440cb964a0b14af9f726a961700288ea860cc8db492685ca4546

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.

Cape
Cape
https://www.capesandbox.com/analysis/338296/

Comments