MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a465bb35f4e7bafb2fea17156c39daee286e49c3f10463ecb8d29766e2d0b200. 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: 7


Intelligence 7 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a465bb35f4e7bafb2fea17156c39daee286e49c3f10463ecb8d29766e2d0b200
SHA3-384 hash: 5c1bc68eb34b347af564fefaac52f3a748b293f11f771dbb53e74d840800358a73be3ca3b5549b770e353fc126411d47
SHA1 hash: f9084f4c4f1756fd531007a8fd7a344207a4cd13
MD5 hash: 7058bdc13d0094b435eaa07b09e76297
humanhash: butter-oranges-queen-bulldog
File name:Appraisal.property..vbs
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:704 bytes
First seen:2021-04-29 10:30:12 UTC
Last seen:2021-04-29 11:31:08 UTC
File type:Visual Basic Script (vbs) vbs
MIME type:text/plain
ssdeep 12:DV8ZhKbI6w18ORMGgTr/gdD8MXEhXofGE8efPWGIgaJUzceZD6wiBgy8BH:5E16K8sMd3/Y8MUh4fLDfdaK7ZD6HXe
Threatray 739 similar samples on MalwareBazaar
TLSH BD01445A672D44DA6123F9419AC0483CA1D630BF04D0F220A590C767C7F75EC4F07052
Reporter abuse_ch
Tags:RAT RemcosRAT vbs

Intelligence

File Origin
# of uploads :
2
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file
Enabling the 'hidden' option for recently created files
Creating a file in the %AppData% subdirectories
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Verdict:
UNKNOWN
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/702007
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates an undocumented autostart registry key
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
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 access)
Tries to steal Mail credentials (via file registry)
VBScript performs obfuscated calls to suspicious functions
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected MSILLoadEncryptedAssembly
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 399929 Sample: Appraisal.property..vbs Startdate: 29/04/2021 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Detected Remcos RAT 2->59 61 5 other signatures 2->61 9 wscript.exe 1 2->9         started        process3 signatures4 75 VBScript performs obfuscated calls to suspicious functions 9->75 77 Wscript starts Powershell (via cmd or directly) 9->77 12 powershell.exe 14 23 9->12         started        process5 dnsIp6 45 ia601403.us.archive.org 207.241.227.123, 443, 49733 INTERNET-ARCHIVEUS United States 12->45 47 ia601409.us.archive.org 207.241.227.129, 443, 49747 INTERNET-ARCHIVEUS United States 12->47 49 ia801402.us.archive.org 207.241.228.142, 443, 49744 INTERNET-ARCHIVEUS United States 12->49 39 C:\Users\Public\ Microsoft.ps1, ASCII 12->39 dropped 85 Creates an undocumented autostart registry key 12->85 17 powershell.exe 22 12->17         started        20 conhost.exe 12->20         started        file7 signatures8 process9 signatures10 51 Writes to foreign memory regions 17->51 53 Injects a PE file into a foreign processes 17->53 22 aspnet_compiler.exe 2 2 17->22         started        27 aspnet_compiler.exe 17->27         started        process11 dnsIp12 43 185.19.85.168, 1723, 49749, 49768 DATAWIRE-ASCH Switzerland 22->43 37 C:\Users\user\AppData\Roaming\...\logs.dat, data 22->37 dropped 63 Installs a global keyboard hook 22->63 65 Injects a PE file into a foreign processes 22->65 29 aspnet_compiler.exe 1 22->29         started        32 aspnet_compiler.exe 13 22->32         started        35 aspnet_compiler.exe 1 22->35         started        67 Tries to steal Mail credentials (via file registry) 27->67 69 Contains functionality to steal Chrome passwords or cookies 27->69 71 Contains functionality to inject code into remote processes 27->71 73 2 other signatures 27->73 file13 signatures14 process15 dnsIp16 79 Tries to steal Instant Messenger accounts or passwords 29->79 81 Tries to steal Mail credentials (via file access) 29->81 41 192.168.2.1 unknown unknown 32->41 83 Tries to harvest and steal browser information (history, passwords, etc) 32->83 signatures17
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a465bb35f4e7bafb2fea17156c39daee286e49c3f10463ecb8d29766e2d0b200/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=urs3wnpu465pwl7kc4kwyoo25yug4sod6ecgh3fy2klwnywqwiaa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
138fa2cd5e89767fd71e4e32719550f54910e3ecc3f81fea5341321cc1b5d429
RemcosRAT
46131c5f93779a7547011c983be113cbf561fee1f4cba59ce8dd8f0bfb4a48f7
RemcosRAT
522735989689a96d0e10e926aae941e58a695062254573c5796bb129e4c7703e
RemcosRAT
5f06da67169389577ec237bfb0c3e0e9203833048f48081deed7b6201ad18c27
RemcosRAT
a2b745b8a979a49f8f7361caff58117a45e9da4149042299b96f68e3ff3998b1
RemcosRAT
bd4965c3df36016318a4c1533f5d68f42a11eefb3b455fbed9a9b62b2d183889
RemcosRAT
c032e316eefbacca4b3ddfe7fc2ee9ac5f86daea767232d2322f7fdfe4b18993
RemcosRAT
e86d9b9cdf1f341e2c2f811a31d371204d181385f6c32282057b976d25f53591
RemcosRAT
facb3b1bbd388588efa04a3d0a5ba963af70d863494dd180b876d590f8b1bb51
RemcosRAT
+ 729 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos rat
Link:
https://tria.ge/reports/210429-68lsytrj5s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
185.19.85.168:1723
Dropper Extraction:
https://ia601403.us.archive.org/35/items/all_20210429/ALL.TXT
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/a465bb35f4e7bafb2fea17156c39daee286e49c3f10463ecb8d29766e2d0b200

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: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.

Cape
Cape
https://www.capesandbox.com/analysis/146577/

Comments