MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d17ccb455ee24cc30f0bb0bdbfe244a388444b82ec069bb0766870b243f03695. 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

SHA256 hash: d17ccb455ee24cc30f0bb0bdbfe244a388444b82ec069bb0766870b243f03695
SHA3-384 hash: e93f97d766cc3a0a4daa1ddab03024250b29a95fc42be9854b7d6c216e87c106ed6b2c506707a5dca0c9867fa5cc6f8f
SHA1 hash: 642a050f9e7a034a758a1792fbe52cf2d9995011
MD5 hash: edf34e47835acb25fee82453f86861a2
humanhash: bacon-princess-shade-social
File name:d17ccb455ee24cc30f0bb0bdbfe244a388444b82ec069bb0766870b243f03695
Download: download sample
Signature RemcosRAT
File size:1'049'600 bytes
First seen:2023-02-07 12:10:19 UTC
Last seen:2023-02-07 13:34:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 24576:g/gJQO12IZyVJ3YdoAx0o9JYqvljL2df3l31cconBuOhjSX:zP1ik0Kz
Threatray 5'053 similar samples on MalwareBazaar
TLSH T1EC25CF12B1F290A3F58745B29025BECD2C3C7123B6D4E61766793A9063058BBFBD4FA1
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 adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
2
# of downloads :
200
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
d17ccb455ee24cc30f0bb0bdbfe244a388444b82ec069bb0766870b243f03695
Verdict:
Malicious activity
Analysis date:
2023-02-07 12:11:06 UTC
Tags:
rat remcos keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit packed remcos
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.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
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)
Multi AV Scanner detection for domain / URL
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)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 800408 Sample: 8JOJHyAARt.exe Startdate: 07/02/2023 Architecture: WINDOWS Score: 100 88 brremcoz1.ddns.net 2->88 92 Multi AV Scanner detection for domain / URL 2->92 94 Malicious sample detected (through community Yara rule) 2->94 96 Antivirus detection for dropped file 2->96 98 9 other signatures 2->98 12 8JOJHyAARt.exe 7 2->12         started        16 vvEpmNwsendQ.exe 5 2->16         started        18 remcos.exe 2->18         started        20 2 other processes 2->20 signatures3 process4 file5 80 C:\Users\user\AppData\...\vvEpmNwsendQ.exe, PE32 12->80 dropped 82 C:\Users\...\vvEpmNwsendQ.exe:Zone.Identifier, ASCII 12->82 dropped 84 C:\Users\user\AppData\Local\...\tmpAAE5.tmp, XML 12->84 dropped 86 C:\Users\user\AppData\...\8JOJHyAARt.exe.log, ASCII 12->86 dropped 108 Contains functionality to steal Chrome passwords or cookies 12->108 110 Uses schtasks.exe or at.exe to add and modify task schedules 12->110 112 Adds a directory exclusion to Windows Defender 12->112 120 2 other signatures 12->120 22 8JOJHyAARt.exe 5 5 12->22         started        25 powershell.exe 21 12->25         started        27 schtasks.exe 1 12->27         started        114 Multi AV Scanner detection for dropped file 16->114 116 Machine Learning detection for dropped file 16->116 118 Injects a PE file into a foreign processes 16->118 29 schtasks.exe 16->29         started        37 3 other processes 16->37 31 schtasks.exe 18->31         started        33 remcos.exe 18->33         started        35 schtasks.exe 20->35         started        39 3 other processes 20->39 signatures6 process7 file8 74 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 22->74 dropped 76 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 22->76 dropped 78 C:\Users\user\AppData\Local\...\install.vbs, data 22->78 dropped 41 wscript.exe 1 22->41         started        43 conhost.exe 25->43         started        45 conhost.exe 27->45         started        47 conhost.exe 29->47         started        49 conhost.exe 31->49         started        51 conhost.exe 35->51         started        53 conhost.exe 39->53         started        process9 process10 55 cmd.exe 1 41->55         started        process11 57 remcos.exe 55->57         started        60 conhost.exe 55->60         started        signatures12 100 Multi AV Scanner detection for dropped file 57->100 102 Machine Learning detection for dropped file 57->102 104 Adds a directory exclusion to Windows Defender 57->104 106 Injects a PE file into a foreign processes 57->106 62 remcos.exe 57->62         started        66 powershell.exe 57->66         started        68 schtasks.exe 57->68         started        process13 dnsIp14 90 brremcoz1.ddns.net 185.16.38.245, 3270, 49700, 49701 PL-SKYTECH-ASPL Poland 62->90 122 Installs a global keyboard hook 62->122 70 conhost.exe 66->70         started        72 conhost.exe 68->72         started        signatures15 process16
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2023-01-28 14:44:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
brremcoz1.ddns.net:3270
Unpacked files
SH256 hash:
924327be2311a42021cc16f29a6b1570eb0dfb7a2f93b4b023f49e9fbe298072
MD5 hash:
b10f5d5b9b811230964718539357b2f3
SHA1 hash:
feb4bbfc7207b3c2778ebc086e4345136a4c72bc
SH256 hash:
0ec21a8e1514cca8231a9dcd520b5efdce7a9d6bfc145107de6f220f69b667c7
MD5 hash:
ddf45772de5d7d395705dc468591b4e5
SHA1 hash:
c5ef37ae947d91c1fde47818a74baf57baaed370
Detections:
win_remcos_auto
SH256 hash:
ff1b42ea7d56a37eae801adbddb7116f52a4664c0b41302736f522852edc2747
MD5 hash:
89ac57478044c57c7195943116a521e0
SHA1 hash:
1ff2bafeed795423e3538d810bda8e1e3fcdcfa5
SH256 hash:
db7bd887c9c40226345379811950d6f3d5d14c688ba23c68537abc648342047d
MD5 hash:
1876ca7bb6f7c04f7d483df210286c96
SHA1 hash:
e1b261c47ed11e08829baa7892689e50fd281b5f
SH256 hash:
d17ccb455ee24cc30f0bb0bdbfe244a388444b82ec069bb0766870b243f03695
MD5 hash:
edf34e47835acb25fee82453f86861a2
SHA1 hash:
642a050f9e7a034a758a1792fbe52cf2d9995011
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


The table below shows additional information about this malware sample such as delivery method and external references.

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