MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecb91c22cca673fa08164d701549383c056b438d65e1f036d4fc98cd53abeb0b. 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: 8


Intelligence 8 IOCs YARA 9 File information Comments
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SHA256 hash: ecb91c22cca673fa08164d701549383c056b438d65e1f036d4fc98cd53abeb0b
SHA3-384 hash: 1feb9e1791db869d93a709ccb79d3223f0908407c1974d858a841dd1d863bf605f2a39eb6cfb3345f1961e1c91afa83e
SHA1 hash: 03ca867f80d79eceb6fc494132fbe6991dedeb0e
MD5 hash: 5c462903762beb6a740c60aa9a0dae17
humanhash: mexico-lithium-twelve-ink
File name:PI08598.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:562'176 bytes
First seen:2020-12-03 14:11:07 UTC
Last seen:2020-12-03 16:07:11 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:kjM7RHqgoG2ve6yBS2evreO9T8saDeIv2qPVGNbTuMuKBD7hpvA:kIof/yBS2eTemT8saiIlST0sDd
Threatray 19 similar samples on MalwareBazaar
TLSH CEC44B39AF592A39F136AB7CC5B02055A7ED6793B307CDDD2CB201C90B23E429AD152D
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/106600/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42726.19126.10498.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/554705
Signature
.NET source code contains very large strings
Detected Remcos RAT
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 326450 Sample: PI08598.exe Startdate: 03/12/2020 Architecture: WINDOWS Score: 100 26 Multi AV Scanner detection for dropped file 2->26 28 Sigma detected: Scheduled temp file as task from temp location 2->28 30 Multi AV Scanner detection for submitted file 2->30 32 8 other signatures 2->32 7 PI08598.exe 4 2->7         started        process3 file4 20 C:\Users\user\AppData\...\zyyYZmIzCdHA.exe, PE32 7->20 dropped 22 C:\Users\...\zyyYZmIzCdHA.exe:Zone.Identifier, ASCII 7->22 dropped 24 C:\Users\user\AppData\Local\...\tmp1824.tmp, XML 7->24 dropped 10 schtasks.exe 1 7->10         started        12 vbc.exe 7->12         started        14 vbc.exe 7->14         started        16 2 other processes 7->16 process5 process6 18 conhost.exe 10->18         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ecb91c22cca673fa08164d701549383c056b438d65e1f036d4fc98cd53abeb0b/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
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Status:
Malicious
First seen:
2020-12-03 14:10:44 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5s4ryiwmuzz7ucawjvybksjyhqcwwq4nmxq7anwu7smm2u5l5mfq._file
Verdict:
unknown
Similar samples:
33bf5c7e008702144c8ec88d5e22c80609463864658612f818d43ca963a5d156
RemcosRAT
52eaa2efa586bbcabbba08c6bb8f4b139ef7133c3f8fd1e5df73b19412b73acd
RemcosRAT
7d47aae61d6960e7900bb2102b481114a8d948f13cc404082f376786e88959ad
RemcosRAT
80d2742ad2aa2b84c5c32278be4a819400da0135ce52389e6ad711539d6ab9d6
RemcosRAT
a12f642139a7cfe0891e40b83400cae049a06c959f742700d47f096ccaa32736
RemcosRAT
a2b202778eb54dc48fd49a2f90b7e6619f20c6d0c907d386da68e9c32fbcb68c
RemcosRAT
c4cfc6eb77f1095f81578053857d14d9597a3c13aa35654fc2742989862ce6e8
RemcosRAT
cfb1834c33817d2fb697bd75004827c5d888e6f62e5db56d2381014e58290821
RemcosRAT
f9e0e3eb49ce4d6156f30deddef92e6b750d24ccafff82afdbe842244894c156
RemcosRAT
ff14e49c4bf46e6959da7ff0016b72aadd9fb77f53de6791a2887bc1a778a81e
RemcosRAT
+ 9 additional samples on MalwareBazaar
Result
Malware family:
remcos
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Score:
  10/10
Tags:
family:remcos rat
Link:
https://tria.ge/reports/201203-hatt8hrz3n/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Remcos
Malware Config
C2 Extraction:
194.5.97.198:2021
Unpacked files
SH256 hash:
ecb91c22cca673fa08164d701549383c056b438d65e1f036d4fc98cd53abeb0b
MD5 hash:
5c462903762beb6a740c60aa9a0dae17
SHA1 hash:
03ca867f80d79eceb6fc494132fbe6991dedeb0e
Link:
https://www.unpac.me/results/ae084297-2010-4a1a-9a3b-f29bb740f95c/
SH256 hash:
9584f6d01e6452371cc9b4828030a13045d99c243c497b63628828e66aabe26f
MD5 hash:
7476e403eef14ac403c63c7279831780
SHA1 hash:
8387f558e30dc115987ac2b5c174a41302471abf
Link:
https://www.unpac.me/results/ae084297-2010-4a1a-9a3b-f29bb740f95c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ecb91c22cca673fa08164d701549383c056b438d65e1f036d4fc98cd53abeb0b

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
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Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
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
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_remcos_g0
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/106600/

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