MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4. 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: 12


Intelligence 12 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4
SHA3-384 hash: f6b4bb736b1b7a99307f301f436adfe5d2facd407820be4d290b186b8cfffa280303d484a82f70505b66e39f2f979ecf
SHA1 hash: d7adee8673f92b59bfdaaa598ab41e04a2226ba8
MD5 hash: c256502f66dbd289955472b574432271
humanhash: two-alanine-vegan-louisiana
File name:SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'808'888 bytes
First seen:2021-01-09 12:52:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:oG0qlcIWcJ52/WTCQNk4v2A8KH8CaCcxMwU0W+tOg7G7rNBJiFo:wfpXyH8CaCqU0W+k
Threatray 1'725 similar samples on MalwareBazaar
TLSH BB8509112FD3254AF2F3D27612B29BDB9F38FA7A72465A19925D1B554C03E822F83D03
Reporter SecuriteInfoCom
Tags:RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
315
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NEW PURCHASE REQUIREMENT.xlsx
Verdict:
Malicious activity
Analysis date:
2021-01-09 10:50:04 UTC
Tags:
encrypted exploit CVE-2017-11882 loader rat remcos keylogger
Link:
https://app.any.run/tasks/6f7434ae-11d2-4758-91c1-a330e304db16

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Generic.mg.c256502f66dbd289.10792.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a UDP request
Adding an access-denied ACE
Creating a file
Creating a file in the %AppData% directory
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 window
Deleting a recently created file
DNS request
Sending a custom TCP request
Reading critical registry keys
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
Setting a global event handler for the keyboard
Stealing user critical data
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/577284
Signature
Contains functionality to capture and log keystrokes
Contains functionality to hide a thread from the debugger
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Country aware sample found (crashes after keyboard check)
Detected Remcos RAT
Detected unpacking (creates a PE file in dynamic memory)
Hides threads from debuggers
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 337693 Sample: SecuriteInfo.com.Generic.mg... Startdate: 09/01/2021 Architecture: WINDOWS Score: 100 86 Multi AV Scanner detection for domain / URL 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 Multi AV Scanner detection for submitted file 2->90 92 5 other signatures 2->92 11 SecuriteInfo.com.Generic.mg.c256502f66dbd289.exe 3 2->11         started        14 vlc.exe 2->14         started        16 vlc.exe 2->16         started        process3 signatures4 102 Contains functionality to steal Chrome passwords or cookies 11->102 104 Contains functionality to capture and log keystrokes 11->104 106 Contains functionality to inject code into remote processes 11->106 108 Contains functionality to steal Firefox passwords or cookies 11->108 18 SecuriteInfo.com.Generic.mg.c256502f66dbd289.exe 4 4 11->18         started        21 cmd.exe 1 11->21         started        23 cmd.exe 1 11->23         started        31 2 other processes 11->31 110 Hides threads from debuggers 14->110 112 Injects a PE file into a foreign processes 14->112 25 cmd.exe 14->25         started        27 cmd.exe 14->27         started        29 cmd.exe 14->29         started        process5 file6 80 C:\Users\user\AppData\Roaming\vlc.exe, PE32 18->80 dropped 82 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 18->82 dropped 33 wscript.exe 1 18->33         started        35 timeout.exe 1 21->35         started        37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        41 timeout.exe 1 23->41         started        47 2 other processes 25->47 49 2 other processes 27->49 43 conhost.exe 31->43         started        45 timeout.exe 1 31->45         started        process7 process8 51 cmd.exe 1 33->51         started        53 conhost.exe 35->53         started        55 timeout.exe 35->55         started        process9 57 vlc.exe 3 51->57         started        60 conhost.exe 51->60         started        signatures10 94 Multi AV Scanner detection for dropped file 57->94 96 Detected unpacking (creates a PE file in dynamic memory) 57->96 98 Machine Learning detection for dropped file 57->98 100 3 other signatures 57->100 62 vlc.exe 57->62         started        66 cmd.exe 57->66         started        68 cmd.exe 57->68         started        70 cmd.exe 57->70         started        process11 dnsIp12 84 swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu 192.253.246.140, 2017, 49739, 49741 LEASEWEB-USA-NYC-11US United States 62->84 114 Injects a PE file into a foreign processes 62->114 72 conhost.exe 66->72         started        74 timeout.exe 66->74         started        76 conhost.exe 68->76         started        78 timeout.exe 68->78         started        signatures13 process14
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-01-09 10:14:29 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7lhrxu37u447qk6bbj5g45bwwsdrv6e6hsbysjygoprnxn3cadsa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
11b16ba733f2f4f10ac58021eecaf5668551a73e2a1acfae99745c50bfccbb44
RemcosRAT
21691425c52cf7a77c0e3a65cc1c0c59cb026d5b76e78160ebb8a553f9bbe50c
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
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4a94b062dbb9df940520146d100df5b019795d0f508d7ba89d24eb18725e1608
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5b10f4a23880b51923a0df3e9e3c37f40eb0d3cc93de7b463da62f936a501385
RemcosRAT
61d9f4cbc76b7889d7d17d262b63c0fd2ee40642653063b1eb6ab84397f8c57b
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82027bdaf86e2d0da1c45ede5efd820a1cbaace1b1b8f7675b8115d82db75f26
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9930543939f97818319ed031530d9e084994331aa4b06a304faeb321bbcc63db
RemcosRAT
d34e588c8bef9cef39708c52f7f372bcd4b5fc39e4eaf0b9193aa586a10d7cc2
RemcosRAT
e26c95b32b64e3f7b5d72d52be2fd7cb52c7a2c1df25f5337a783a1735f806ad
RemcosRAT
+ 1'715 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos persistence rat spyware
Link:
https://tria.ge/reports/210109-deb6bhpc6a/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
swryijgrvcsgkopnmcdertvgdswbvmophtfdczxs.ydns.eu:2017
Unpacked files
SH256 hash:
facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4
MD5 hash:
c256502f66dbd289955472b574432271
SHA1 hash:
d7adee8673f92b59bfdaaa598ab41e04a2226ba8
Link:
https://www.unpac.me/results/8e9c3f59-1f0c-4378-ac74-4c52996d360f/
SH256 hash:
9a3591e816924c3d0dda49041d6be2ca37462c81da9b84c4c208e903ceda4450
MD5 hash:
d6f956c16d5974d25f88e0844737b921
SHA1 hash:
1ed0217ca7b3207993c876e2e5fc410d65c1df88
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8e9c3f59-1f0c-4378-ac74-4c52996d360f/
SH256 hash:
179c093306d7d13ae3820cc3ccadd8b0ff45d71702b0290c8de008749816b5f4
MD5 hash:
912d1266232416504f5a7bb9191ed2c5
SHA1 hash:
e61bbc2ea309f224fda24623244423d751654eb2
Link:
https://www.unpac.me/results/8e9c3f59-1f0c-4378-ac74-4c52996d360f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4

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.

Web download

RemcosRAT

Executable exe facf1bd37fa739f82bc10a7a6e7436b4871af89e3c8389270673e2dbb76200e4

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/951400/
  
Delivery method
Distributed via web download

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