MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a. 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: 12


Intelligence 12 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a
SHA3-384 hash: eb083ad22b17502dc075bf2b62f0e2d199156b03b3e7d58e3630f36ffa87b73ae6a6c9ff060c03567cb6948716cb1847
SHA1 hash: 6d0ab8998c4c2239677d2f7999a15fb3da1fe9da
MD5 hash: e9517f02659045fe9177e10f0497d173
humanhash: friend-beer-sodium-saturn
File name:New order PO-LP20210201.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:931'840 bytes
First seen:2021-02-03 16:29:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:vFZdtJN/uQMKm4iNb5ajWqBwttVFuMiRjbH57:dZLJ4KbiNb5IW2RjL
Threatray 453 similar samples on MalwareBazaar
TLSH 4515132C1F9C4E55C35AAFB866F0D028F2BF852A281AD70A8F643DD87B79FD459409C1
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
greenfieldsde.duckdns.org:6553 (45.153.242.186)

Intelligence

File Origin
# of uploads :
1
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
New order PO-LP20210201.exe
Verdict:
Malicious activity
Analysis date:
2021-02-03 16:31:21 UTC
Tags:
rat remcos keylogger stealer
Link:
https://app.any.run/tasks/07c6f343-eae9-4402-945a-03480ce4d3f5

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/115386/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting 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
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:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/598121
Signature
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sigma detected: Remcos
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)
Tries to steal Instant Messenger accounts or passwords
Uses dynamic DNS services
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 348102 Sample: New order PO-LP20210201.exe Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 63 Malicious sample detected (through community Yara rule) 2->63 65 Multi AV Scanner detection for dropped file 2->65 67 Detected Remcos RAT 2->67 69 13 other signatures 2->69 11 New order PO-LP20210201.exe 3 2->11         started        14 remcos.exe 2 2->14         started        17 remcos.exe 2 2->17         started        process3 file4 57 C:\Users\...57ew order PO-LP20210201.exe.log, ASCII 11->57 dropped 19 New order PO-LP20210201.exe 4 5 11->19         started        22 New order PO-LP20210201.exe 11->22         started        77 Injects a PE file into a foreign processes 14->77 24 remcos.exe 14->24         started        26 remcos.exe 14->26         started        28 remcos.exe 17->28         started        signatures5 process6 file7 51 C:\Program Files (x86)\Remcos\remcos.exe, PE32 19->51 dropped 53 C:\...\remcos.exe:Zone.Identifier, ASCII 19->53 dropped 30 wscript.exe 1 19->30         started        process8 process9 32 cmd.exe 1 30->32         started        process10 34 remcos.exe 3 32->34         started        36 conhost.exe 32->36         started        process11 38 remcos.exe 2 4 34->38         started        dnsIp12 59 greenfieldsde.duckdns.org 45.153.242.186, 49724, 49725, 6553 COMBAHTONcombahtonGmbHDE Germany 38->59 55 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 38->55 dropped 71 Injects a PE file into a foreign processes 38->71 43 remcos.exe 38->43         started        47 remcos.exe 38->47         started        49 remcos.exe 38->49         started        file13 signatures14 process15 dnsIp16 61 192.168.2.1 unknown unknown 43->61 73 Tries to harvest and steal browser information (history, passwords, etc) 43->73 75 Tries to steal Instant Messenger accounts or passwords 47->75 signatures17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 16:30:11 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wzbxzckob3kiqkk35jpnoxehug7xtkgbpbvsipf5kavjhvbn5fa._file
Verdict:
malicious
Similar samples:
035cba8ea6bbe0336a0221e86b571e530764939150df17f636fd23ad30db3f27
RemcosRAT
2f85c41ee13d69e68454d97153252e8ba9a3a0e85573427eac0600d41fa6824d
RemcosRAT
357ab6a0cf97d36af99606bce098c476c4a24085f4d972038b11b3570486d620
RemcosRAT
553caa644cbf9022987290140354f878981f281eb487847afa5017eca470c279
RemcosRAT
719bb30fb8ff3d79fd0216bdbc9f9d1b377c1456a20c8d9a26f1a19e283352ba
RemcosRAT
763d415415add2ffc6d482373e211c8c8b647ee46ade5e8dacce10f79d515e2b
RemcosRAT
cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64
RemcosRAT
db829cd71600a93bfe37a2d7ff5686ed39d88f30723cf93b272de87cc1fe1aeb
RemcosRAT
e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631
RemcosRAT
eddb00e96bcae82158333e9c0a0e0e1cf8002af1f6287fe8a99f5e3d619af2fb
RemcosRAT
+ 443 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat spyware
Link:
https://tria.ge/reports/210203-flgznyjlj2/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Unpacked files
SH256 hash:
b9c0b37d08f9cb6874322277d8bc22ab7fad96ff2999c02ed3744bf97c64af25
MD5 hash:
5a1b7fc37099a90bdc33391f405b860e
SHA1 hash:
ff638f94f44ea7ea5be6f6ea84176849444bf3ff
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/79ab317d-b9d9-421a-a9b6-fa252de704f9/
Parent samples :
e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631
f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a
fcd247261215a170a1644a7abd0c4003b21a81fb0dbdf928831351905e31388a
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
Link:
https://www.unpac.me/results/79ab317d-b9d9-421a-a9b6-fa252de704f9/
SH256 hash:
4df507e40eaa15b858f59cf1c79d569da1b0c54953ba72d0fc29bf0f5051b944
MD5 hash:
4a91a07502fc26a447c61cc5f7940da1
SHA1 hash:
469b52d052dc929d19af3d584b2f61ba0578e550
Link:
https://www.unpac.me/results/79ab317d-b9d9-421a-a9b6-fa252de704f9/
SH256 hash:
f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a
MD5 hash:
e9517f02659045fe9177e10f0497d173
SHA1 hash:
6d0ab8998c4c2239677d2f7999a15fb3da1fe9da
Link:
https://www.unpac.me/results/79ab317d-b9d9-421a-a9b6-fa252de704f9/
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/f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a

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:ach_RemcosRAT
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115386/

Comments