MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818
SHA3-384 hash: 05100bc50fa1f7a5317b7e00fc8619a844c0e705f4d6cd831d1cad3c1c6527ac26c9fdf9373d58e04a928556a1ae0c22
SHA1 hash: 38139790f515784450a11873e223ae6d8e03e8ea
MD5 hash: 937019e3182a6abd742ba25937ca97c2
humanhash: music-mexico-idaho-fish
File name:Swift_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:2'112'000 bytes
First seen:2021-02-02 07:35:28 UTC
Last seen:2021-02-02 09:31:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:VroqUw/M5km8Bwzbl8cxp98mSdI0ovNSkSsllI9yrTh8HHeC6I4IS0ss1tMnwvDD:dor8ezbXS5z+R7tgFtSTxwQjno
Threatray 1'347 similar samples on MalwareBazaar
TLSH 87A506116ADC2B04E43E9B799A30061547F27947F7BAE75E6CC0229A9C367C1AF1D323
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: server.yildizhost.net
Sending IP: 185.131.50.17
From: Peretto Andrea - AMUT S.p.A. <ppmfg@precisionproducts.in>
Subject: SWIFT DOZNAKA: GOBERTIA DOO BEOGRAD, val: USD 49,955.57, Datum: 02.02.2021
Attachment: Swift_pdf.gz (contains "Swift_pdf.exe")

RemcosRAT C2:
welloff.myq-see.com:5567

Intelligence

File Origin
# of uploads :
2
# of downloads :
107
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Swift_pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-02-02 07:37:11 UTC
Tags:
trojan rat remcos
Link:
https://app.any.run/tasks/17eb2b27-5c74-4c83-9d19-eb164acfb43b

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/115062/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Sending a custom TCP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from 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
Enabling autorun by creating a 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.
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/596212
Signature
.NET source code contains potential unpacker
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
Detected Remcos RAT
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
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: 347145 Sample: Swift_pdf.exe Startdate: 02/02/2021 Architecture: WINDOWS Score: 100 70 Malicious sample detected (through community Yara rule) 2->70 72 Sigma detected: Scheduled temp file as task from temp location 2->72 74 Detected Remcos RAT 2->74 76 7 other signatures 2->76 11 Swift_pdf.exe 7 2->11         started        15 remcos.exe 2->15         started        17 remcos.exe 2->17         started        process3 file4 62 C:\Users\user\AppData\Local\...\tmpE2FF.tmp, XML 11->62 dropped 64 C:\Users\user\AppData\...\Swift_pdf.exe.log, ASCII 11->64 dropped 66 C:\Users\user\AppData\...\FcGwpsGfOxcQc.exe, PE32 11->66 dropped 78 Contains functionality to steal Chrome passwords or cookies 11->78 80 Contains functionality to capture and log keystrokes 11->80 82 Contains functionality to inject code into remote processes 11->82 84 Contains functionality to steal Firefox passwords or cookies 11->84 19 Swift_pdf.exe 4 5 11->19         started        22 schtasks.exe 1 11->22         started        86 Injects a PE file into a foreign processes 15->86 24 schtasks.exe 15->24         started        26 remcos.exe 15->26         started        28 schtasks.exe 17->28         started        30 remcos.exe 17->30         started        32 remcos.exe 17->32         started        signatures5 process6 file7 58 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 19->58 dropped 60 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 19->60 dropped 34 wscript.exe 1 19->34         started        36 conhost.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 24->40         started        process8 process9 42 cmd.exe 1 34->42         started        process10 44 remcos.exe 5 42->44         started        47 conhost.exe 42->47         started        signatures11 88 Injects a PE file into a foreign processes 44->88 49 remcos.exe 44->49         started        52 schtasks.exe 1 44->52         started        54 remcos.exe 44->54         started        process12 dnsIp13 68 welloff.myq-see.com 206.123.140.58, 49724, 5567 M247GB United States 49->68 56 conhost.exe 52->56         started        process14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818/
Threat name:
Win32.Trojan.Pwsx
Create hunting rule
Status:
Malicious
First seen:
2021-02-02 02:37:39 UTC
AV detection:
4 of 45 (8.89%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fshsqzqpxwmvafilrlgvb66vv6j7tu3pxdg2q2vlhsffcwhcvama._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
3b1b352f3c4d0fe235b45d9db418e1e4155ab31265ee368ed646ac38071a2eda
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4812f818863c7c7bf8e49af3f118de577f30843d318469961ea298a6a75d982c
RemcosRAT
5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
5b7e2aa7fd116ece66c8a64a2a92a1313fc5a2b29fd2f29b295d46938a50e469
RemcosRAT
82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
RemcosRAT
865114b9f103c739212beb94ede2a4c67f58b9f02268673109b452452803e88a
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
dfd3c33bf7be405cea03a045f3df2d9ff35f04c7da918eb916b6f224a58eea1f
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'337 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence ransomware rat
Link:
https://tria.ge/reports/210202-xd8fcg15b2/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
welloff.myq-see.com:5567
Unpacked files
SH256 hash:
39eb5db6dfa0fe379e7b5506708f1aed8201267bf8b55268224b3bf28a2184dc
MD5 hash:
b2b6e555e7e8be08df76f0a1a6caf5b3
SHA1 hash:
a1ac15b46e47a2fbcb5105052bd11cb033f6e20c
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/26e46fea-8fb8-4570-a378-6776ba26aed4/
SH256 hash:
bd03f1419db658015507630078378ed7b24ed480166fb9855308e78cd249fb44
MD5 hash:
06ba0381250a64535e2ff8dcf4f37907
SHA1 hash:
bb9f2a2c1d8bdabeefcb7b1f0333a47ae144571c
Link:
https://www.unpac.me/results/26e46fea-8fb8-4570-a378-6776ba26aed4/
SH256 hash:
c626994c544a13267e2d8998dee43de851b696a3bcdd41a5fdb1e478eda41b05
MD5 hash:
2a6eb10f47934cb98da753a53a688ed3
SHA1 hash:
1e107e05d049e31ee6e1c5213cc674aec140a7a4
Link:
https://www.unpac.me/results/26e46fea-8fb8-4570-a378-6776ba26aed4/
SH256 hash:
2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818
MD5 hash:
937019e3182a6abd742ba25937ca97c2
SHA1 hash:
38139790f515784450a11873e223ae6d8e03e8ea
Link:
https://www.unpac.me/results/26e46fea-8fb8-4570-a378-6776ba26aed4/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818

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
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

File information

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

Malspam

RemcosRAT

gz 27bc5451490039caf7e510d199080dfca6c5514a767146b00d81365ad25ed0f3

RemcosRAT

Executable exe 2c8f28660fbd9950150b8acd50fbd5af93f9d36fb8cda86aab3c8a5158e2a818

(this sample)

  
Dropped by
MD5 f84557829d68b3a34364cf16fcff8027
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 27bc5451490039caf7e510d199080dfca6c5514a767146b00d81365ad25ed0f3
Cape
Cape
https://www.capesandbox.com/analysis/115062/

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