MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6
SHA3-384 hash: 89a7e4b12486b46d2f72941075aafaa67072bea99ca6f9de71562e7f4b4088223bf3fb5f19575f41766be3e5538c9f87
SHA1 hash: 31af6b835cb0d738cfae268f74b24f7f8f92676b
MD5 hash: 1c4171c0fedb2d62365ccdc0338fe5eb
humanhash: hawaii-texas-quiet-violet
File name:bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'336'864 bytes
First seen:2021-09-07 06:07:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep 24576:KAHnh+eWsN3skA4RV1Hom2KXFmIadbBV7SOe5k:dh+ZkldoPK1XadtV+Xk
Threatray 1'209 similar samples on MalwareBazaar
TLSH T105557C03739D9026FEAA927F5B55B20156BD7D2400E3872F12983D6DA9F03B11E3DE62
dhash icon e8d4f0ccccf0d4e8 (3 x RemcosRAT, 1 x SnakeKeylogger, 1 x AgentTesla)
Reporter JAMESWT_WT
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
105
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6
Verdict:
Malicious activity
Analysis date:
2021-09-07 06:48:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/eba2c889-6b99-4915-9bd2-251917b76b68

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/185834/
Detection(s):
Win.Malware.Nymeria-6988663-0
Create hunting rule

SecuriteInfo.com.AIT.Trojan.Nymeria.1583.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Enabling the 'hidden' option for recently created files
Unauthorized injection to a recently created process
Connection attempt to an infection source
Sending a TCP request to an infection source
Creating a file in the %AppData% subdirectories
Sending a UDP request
Setting a global event handler for the keyboard
Query of malicious DNS domain
Enabling autorun by creating a file
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/666aa144-e278-4aa9-9e69-6bc1e5058fd1
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/846544
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
AutoIt script contains suspicious strings
Binary is likely a compiled AutoIt script file
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Detected Remcos RAT
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries random domain names (often used to prevent blacklisting and sinkholes)
Sigma detected: Drops script at startup location
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 478975 Sample: XpFowKsvPB Startdate: 07/09/2021 Architecture: WINDOWS Score: 100 33 2ffahbg8eydhr96hx3x2lje2ymygt5iq.duckdns.org 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus / Scanner detection for submitted sample 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 7 other signatures 2->45 8 wscript.exe 1 2->8         started        10 XpFowKsvPB.exe 4 2->10         started        signatures3 process4 file5 14 ActiveSyncCsp.exe 1 8->14         started        29 C:\Users\user\...\ActiveSyncCsp.exe, PE32 10->29 dropped 47 Binary is likely a compiled AutoIt script file 10->47 49 Contains functionality to inject code into remote processes 10->49 51 Injects a PE file into a foreign processes 10->51 18 XpFowKsvPB.exe 2 3 10->18         started        signatures6 process7 dnsIp8 31 C:\Users\user\AppData\Roaming\...\RAVBg64.url, MS 14->31 dropped 53 Antivirus detection for dropped file 14->53 55 Binary is likely a compiled AutoIt script file 14->55 57 Contains functionalty to change the wallpaper 14->57 59 5 other signatures 14->59 21 ActiveSyncCsp.exe 14->21         started        23 ActiveSyncCsp.exe 14->23         started        25 ActiveSyncCsp.exe 14->25         started        27 16 other processes 14->27 35 2ffahbg8eydhr96hx3x2lje2ymygt5iq.duckdns.org 192.169.69.26, 4431, 49704, 49706 WOWUS United States 18->35 37 192.168.2.1 unknown unknown 18->37 file9 signatures10 process11
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-09-03 14:19:15 UTC
File Type:
PE (Exe)
Extracted files:
22
AV detection:
32 of 43 (74.42%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
1915126c27ba8566c624491bd2613215021cc2b28e5e6f3af69e9e994327f3ac
RemcosRAT
6cebbb0e3d8d28117e67f18212a9847d0262fd4e616def639be1071f1c33b8fb
RemcosRAT
6d1cfff093998c807b9c5dc3fd122adbea40c5bad0cad4cbe10b43932c28bdd9
RemcosRAT
a9c9824497908a525a168c43d743fea3d1f5dc4c3004e8fe51b77a28ac018829
RemcosRAT
b254d7faa603b46c4c63f6d1f88d65767fb80638a000967fe527b9572b956e35
RemcosRAT
b2c546db519f541e77933c1ae7884047df59775c05488c766a5b1b96eff1cb79
RemcosRAT
b42b33ffa4b45bc81b71f13d89dc1283b155204913aa8362e99e9aa44366bfb2
RemcosRAT
db6c57acf61c5e3fc79190feca4683089f6a05b8af985e49361d25995178e4d0
RemcosRAT
e942c853f791a2ebd37ae59344bf8878d9a02cdcb83848a68876c49497c642d2
RemcosRAT
f60f32ec899bcb92fd50491a8c32f0548afbd4dc02462dfa373d484b4b161a86
RemcosRAT
+ 1'199 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
upx
Link:
https://tria.ge/reports/210907-gvya6sbhh4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
UPX packed file
Unpacked files
SH256 hash:
9a1b6544f864071063ff6352267492786443c2f3930009e39adfdd5bf1c906c8
MD5 hash:
ece006a1b6bc5becb4b4b7215c3c89fd
SHA1 hash:
2332f9f2f070d0dfa0a1c92e621c3ed02febcf3d
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/2658ed67-193d-46f5-ad05-36d288155697/
Parent samples :
c582b5864a67c2d63f8d3a8faf08b47e94646a96cd81abe507d8d08df13e40c4
ba941d09fd153b7a9c5184333bb789e321679d736db2f1f457e41e65e7d59789
f59e0f40f585fb82cde0dd687415d778c27b944d936a13a91e4b4894df738be1
bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6
6d2f1a98b77181cb675c0f3cd3ae6824fdd90e150c46d6fcee0ed16f7cd855df
SH256 hash:
bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6
MD5 hash:
1c4171c0fedb2d62365ccdc0338fe5eb
SHA1 hash:
31af6b835cb0d738cfae268f74b24f7f8f92676b
Link:
https://www.unpac.me/results/2658ed67-193d-46f5-ad05-36d288155697/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/bc28df3a2537/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/bc28df3a25377a42fb70eb261ff90a7708834e60b10068cb35904d3da58ce5f6

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE).

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/185834/

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