MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631
SHA3-384 hash: b37e31c5a08437bec64e8a4b538e642117558a22e2c30169caf6bcaa25e38f48b60f7d74e6a24e4a5daef97858ac000a
SHA1 hash: cdf8b4458fe08347191bb774798e65f2f182f50a
MD5 hash: 9dfd9c93b7e907a64fc1979fd55b741d
humanhash: washington-kentucky-earth-asparagus
File name:5a12aa2107c0f1175c21c005834dfca8.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:927'744 bytes
First seen:2021-02-03 10:21:48 UTC
Last seen:2021-02-03 12:21:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:lZjaxTTTiyHZw8B5A/QHRU4YK7IrZkorP2Q1LNGx:lZjKiyHZwq5cQHRYKkmo72Q1
Threatray 5 similar samples on MalwareBazaar
TLSH 9E1512243EBE1B1AF7715BF90DB1D0109BBE695A2425D3088DE638DD2634FD89A80F53
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.helitactica.xyz
Sending IP: 203.159.80.22
From: Ivy Sheng <ivy@quippbattery.com>
Reply-To: Ivy Sheng <maafluatu@gmail.com>
Subject: Re: New order PO-LP20210201
Attachment: 5a12aa2107c0f1175c21c005834dfca8.zip (contains "5a12aa2107c0f1175c21c005834dfca8.exe")

RemcosRAT C2:
greenfieldsde.duckdns.org:6553

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5a12aa2107c0f1175c21c005834dfca8.exe
Verdict:
Malicious activity
Analysis date:
2021-02-03 10:25:19 UTC
Tags:
rat remcos stealer keylogger
Link:
https://app.any.run/tasks/5668cc57-e8ee-4b62-bd43-b0d05b2dbd04

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/115284/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42827.4897.6893.UNOFFICIAL
Create hunting rule

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:
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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/597664
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
Delayed program exit found
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Uses dynamic DNS services
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 347868 Sample: 5a12aa2107c0f1175c21c005834... Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 66 Malicious sample detected (through community Yara rule) 2->66 68 Multi AV Scanner detection for dropped file 2->68 70 Detected Remcos RAT 2->70 72 8 other signatures 2->72 11 5a12aa2107c0f1175c21c005834dfca8.exe 3 2->11         started        15 remcos.exe 2 2->15         started        17 remcos.exe 2 2->17         started        process3 file4 58 5a12aa2107c0f1175c21c005834dfca8.exe.log, ASCII 11->58 dropped 76 Contains functionality to steal Chrome passwords or cookies 11->76 78 Contains functionality to capture and log keystrokes 11->78 80 Contains functionality to inject code into remote processes 11->80 84 2 other signatures 11->84 19 5a12aa2107c0f1175c21c005834dfca8.exe 4 5 11->19         started        82 Injects a PE file into a foreign processes 15->82 22 remcos.exe 15->22         started        24 remcos.exe 17->24         started        26 remcos.exe 17->26         started        signatures5 process6 file7 52 C:\Program Files (x86)\Remcos\remcos.exe, PE32 19->52 dropped 54 C:\...\remcos.exe:Zone.Identifier, ASCII 19->54 dropped 28 wscript.exe 1 19->28         started        process8 process9 30 cmd.exe 1 28->30         started        process10 32 remcos.exe 3 30->32         started        35 conhost.exe 30->35         started        signatures11 64 Injects a PE file into a foreign processes 32->64 37 remcos.exe 2 4 32->37         started        42 remcos.exe 32->42         started        process12 dnsIp13 60 greenfieldsde.duckdns.org 45.153.242.186, 49723, 49724, 6553 COMBAHTONcombahtonGmbHDE Germany 37->60 56 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 37->56 dropped 74 Injects a PE file into a foreign processes 37->74 44 remcos.exe 37->44         started        48 remcos.exe 37->48         started        50 remcos.exe 37->50         started        file14 signatures15 process16 dnsIp17 62 192.168.2.1 unknown unknown 44->62 86 Tries to harvest and steal browser information (history, passwords, etc) 44->86 signatures18
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-02-03 10:22:11 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5gygtwdad46fv5jesy3gzzmsdlikle4md4s6dbqcgvicpqto2yyq._file
Verdict:
unknown
Similar samples:
035cba8ea6bbe0336a0221e86b571e530764939150df17f636fd23ad30db3f27
RemcosRAT
2f85c41ee13d69e68454d97153252e8ba9a3a0e85573427eac0600d41fa6824d
RemcosRAT
553caa644cbf9022987290140354f878981f281eb487847afa5017eca470c279
RemcosRAT
cacfd3f384737f85e02f8c4dfad0689a71b228c8b930995c24da43582f688a64
RemcosRAT
eddb00e96bcae82158333e9c0a0e0e1cf8002af1f6287fe8a99f5e3d619af2fb
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat spyware
Link:
https://tria.ge/reports/210203-3e1qlmxz4s/
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
NirSoft MailPassView
NirSoft WebBrowserPassView
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/43e3da3c-1146-4a0b-ad3b-6c18185290b2/
Parent samples :
e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631
f5b21be44a7076a4414adf52f6bae43d0dfbcd460bc35921e5ea81549ea16f4a
fcd247261215a170a1644a7abd0c4003b21a81fb0dbdf928831351905e31388a
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
Link:
https://www.unpac.me/results/43e3da3c-1146-4a0b-ad3b-6c18185290b2/
SH256 hash:
278ae1b69a8a2ca438fd9d33fe47b6acf79516cf9a53584764a2a58389e0abf7
MD5 hash:
d63b8dad6faa9add87cdf8ef96c4dda8
SHA1 hash:
122159a3223cbffd73bb11e37c8a36fc4ad3ea58
Link:
https://www.unpac.me/results/43e3da3c-1146-4a0b-ad3b-6c18185290b2/
SH256 hash:
e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631
MD5 hash:
9dfd9c93b7e907a64fc1979fd55b741d
SHA1 hash:
cdf8b4458fe08347191bb774798e65f2f182f50a
Link:
https://www.unpac.me/results/43e3da3c-1146-4a0b-ad3b-6c18185290b2/
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/e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631

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

unknown c1296e93f3f41d8cefc2c31ee5427c043c685f33e3af6a99fff0fe694d32fc50

RemcosRAT

Executable exe e9b069d8601f3c5af52496366ce5921ad0a5938c1f25e18602355027c26ed631

(this sample)

  
Dropped by
MD5 6dabf71653aaffb19b3d4f7bcf2f0902
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/115284/
  
Dropped by
SHA256 c1296e93f3f41d8cefc2c31ee5427c043c685f33e3af6a99fff0fe694d32fc50

Comments