MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 413d73ef75407d0fa7bc7dbfdf693e7de00b60d3d3d55b225234a2c0ea467c45. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 413d73ef75407d0fa7bc7dbfdf693e7de00b60d3d3d55b225234a2c0ea467c45
SHA3-384 hash: 50008a9ded01dd1634e26506b2af3e453310251fed696c349274436f84844d1d1752bb2769002872576661774d82a7a3
SHA1 hash: a5d8e0b6908cf678d4c452d3974153b9c8fb3194
MD5 hash: aa6794a31b8c3a039dcf70b5039fe7cb
humanhash: oregon-connecticut-coffee-monkey
File name:IMG-20210802-WA0587-089.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:559'568 bytes
First seen:2021-08-02 07:47:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 32227af8543b6c4653100d3bb07898a3 (3 x SnakeKeylogger, 1 x RedLineStealer, 1 x Formbook)
ssdeep 12288:2iN/pHdfxKQcBYcXlB8eqy+yRgFqDU5V9dqdmXXr/ZTV7UZniUpElSV+0g3:2idNBlcicVBIJmAVfDN57UxiUpEI4B3
Threatray 383 similar samples on MalwareBazaar
TLSH T1D8C40252A0C24834E952477B91FE28CDEA1EED535E24AFDFA2454F361EAD3C09532E07
dhash icon 64f4d4d4ecf4d4d4 (82 x SnakeKeylogger, 34 x AgentTesla, 24 x Formbook)
Reporter TeamDreier
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
418
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMG-20210802-WA0587-089.exe
Verdict:
Malicious activity
Analysis date:
2021-08-02 07:52:39 UTC
Tags:
rat remcos
Link:
https://app.any.run/tasks/51a27bb5-b0b5-42d5-8630-09a16c2a9ca0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/175715/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a window
Deleting a recently created file
Running batch commands
Creating a file
DNS request
Connection attempt
Sending a UDP request
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process by context flags manipulation
Deleting of the original file
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5690bc53-e3ff-430e-80d1-9c808a087fd9
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/825368
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
Contains functionalty to change the wallpaper
Delayed program exit found
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 457783 Sample: IMG-20210802-WA0587-089.exe Startdate: 02/08/2021 Architecture: WINDOWS Score: 100 46 ramzy.duckdns.org 2->46 50 Multi AV Scanner detection for domain / URL 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 8 other signatures 2->56 12 IMG-20210802-WA0587-089.exe 2->12         started        15 roamar.exe 2->15         started        17 roamar.exe 2->17         started        signatures3 process4 signatures5 58 Detected unpacking (changes PE section rights) 12->58 60 Detected unpacking (overwrites its own PE header) 12->60 62 Contains functionalty to change the wallpaper 12->62 66 4 other signatures 12->66 19 IMG-20210802-WA0587-089.exe 4 5 12->19         started        64 Maps a DLL or memory area into another process 15->64 22 roamar.exe 15->22         started        24 roamar.exe 17->24         started        process6 file7 40 C:\Users\user\AppData\Roaming\...\roamar.exe, PE32 19->40 dropped 42 C:\Users\user\...\roamar.exe:Zone.Identifier, ASCII 19->42 dropped 44 C:\Users\user\AppData\Local\...\install.vbs, data 19->44 dropped 26 wscript.exe 1 19->26         started        process8 process9 28 cmd.exe 1 26->28         started        process10 30 roamar.exe 28->30         started        33 conhost.exe 28->33         started        signatures11 68 Multi AV Scanner detection for dropped file 30->68 70 Detected unpacking (changes PE section rights) 30->70 72 Detected unpacking (overwrites its own PE header) 30->72 74 6 other signatures 30->74 35 roamar.exe 2 2 30->35         started        process12 dnsIp13 48 ramzy.duckdns.org 23.105.131.220, 2005, 49712, 49715 LEASEWEB-USA-NYC-11US United States 35->48 38 conhost.exe 35->38         started        process14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/413d73ef75407d0fa7bc7dbfdf693e7de00b60d3d3d55b225234a2c0ea467c45/
Threat name:
Win32.Ransomware.Cryptor
Create hunting rule
Status:
Malicious
First seen:
2021-08-02 07:48:09 UTC
AV detection:
18 of 46 (39.13%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ie6xh33vib6q7j54pw7562j6pxqawygt2pkvwissgsrmb2sgprcq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
16b834e15f6d2c66cb5f2b8b5acbe63830408847d3731d60625b57c1c0e9ad5a
RemcosRAT
1974f2f3c94bc79af6872802cae45f9113ce6b708635930a77aa73db92898852
RemcosRAT
5541f9d1656fe9d24b9048afc1dd005bf25d9aacac4e57f932bbdb19919776dd
RemcosRAT
7f03d6f5a38d18082c3dd60b773921aecd203a839446a4aca4908309a004b4a4
RemcosRAT
b9b1a3245f7aa2f9fadc4cff8343866030a63f297167df00ca0aa4284f453be1
RemcosRAT
cbe42b277b9e2d8ad915917a6c9a6cca9858efb70c342462a0a6701b39dda1fc
RemcosRAT
e53122230df3df822e7e4476d12fe580f5b6a18e793b42703e00fb58e9f2547b
RemcosRAT
e69013a3a50ffb58b54a02e4317ad21da89fcadea6d92c0ba83fc1a10d0bb549
RemcosRAT
f198970271e10830bafa86eccc5ce43e5075a15ed43f4e1924d0e8e0824f218b
RemcosRAT
+ 373 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/210802-6rz1z9wppn/
Behaviour
Modifies registry class
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
ramzy.duckdns.org:2005
Unpacked files
SH256 hash:
54381af18a87c3e5a137202ebac80d677c2a73de9410a3a1121af892284c1417
MD5 hash:
b5d043e2b3dce0fe812570daccb0feb4
SHA1 hash:
b2607d0b7d0a159ac449da9dbad986d29f4852ca
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/300709d3-dde1-40f4-a53b-56d92bc24817/
SH256 hash:
413d73ef75407d0fa7bc7dbfdf693e7de00b60d3d3d55b225234a2c0ea467c45
MD5 hash:
aa6794a31b8c3a039dcf70b5039fe7cb
SHA1 hash:
a5d8e0b6908cf678d4c452d3974153b9c8fb3194
Link:
https://www.unpac.me/results/300709d3-dde1-40f4-a53b-56d92bc24817/
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/413d73ef75407d0fa7bc7dbfdf693e7de00b60d3d3d55b225234a2c0ea467c45

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
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/175715/

Comments