MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84. 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 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84
SHA3-384 hash: 9f890df94b35497062c3ba643246b5bf99babc4aefbd7a1c0cabd1aa791adf10e9d52d91968193ff57bb0169d6e4055a
SHA1 hash: ce6df9cc36b0049e01bbd72b00f92f42fdf7f990
MD5 hash: 3386ae032f6d373ca53c4cdd9f2d8071
humanhash: golf-echo-sink-network
File name:3386ae032f6d373ca53c4cdd9f2d8071
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:749'056 bytes
First seen:2021-09-03 20:12:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 683e36fe1155994747e39b9f335ec7e3 (3 x RemcosRAT)
ssdeep 12288:KAQ4TXPbFLYhC0MPsgGsXxItImX/m/zOOMH9L9T5kLvRJ:KZaZUhJOskXOt/vmb6kLJ
Threatray 583 similar samples on MalwareBazaar
TLSH T162F4AE02B6A1113FE1BB473DED8B7FA6CA21EE15393190562FF428148FB7745913A34A
dhash icon 03372481b95d1d3f (8 x RemcosRAT, 4 x Formbook)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Electronic Payment Advice.xls
Verdict:
Malicious activity
Analysis date:
2021-09-03 19:22:25 UTC
Tags:
macros macros-on-open loader rat remcos
Link:
https://app.any.run/tasks/4bb4e654-2be2-445c-b3de-78011bb704de

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/185232/
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.W32.AIDetect.malware2.14177.25526.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Sending a UDP request
Creating a file
Deleting a recently created file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/07a7676e-6285-4444-9db7-cbc09fc46735
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/845059
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Creates a thread in another existing process (thread injection)
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 477489 Sample: Eoo91zh29a Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 40 twistednerd.dvrlists.com 2->40 42 clientconfig.passport.net 2->42 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Detected Remcos RAT 2->58 60 2 other signatures 2->60 9 Eoo91zh29a.exe 1 22 2->9         started        14 Zmtabit.exe 2->14         started        16 Zmtabit.exe 2->16         started        signatures3 process4 dnsIp5 48 ya5qxq.sn.files.1drv.com 9->48 50 sn-files.fe.1drv.com 9->50 52 onedrive.live.com 9->52 38 C:\Users\Public\Libraries\...\Zmtabit.exe, PE32 9->38 dropped 70 Writes to foreign memory regions 9->70 72 Allocates memory in foreign processes 9->72 74 Creates a thread in another existing process (thread injection) 9->74 76 Injects a PE file into a foreign processes 9->76 18 dialer.exe 2 9->18         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 9->24         started        file6 signatures7 process8 dnsIp9 44 twistednerd.dvrlists.com 62.102.148.152, 49720, 49721, 49722 TEKNIKBYRANSE Sweden 18->44 46 192.168.2.1 unknown unknown 18->46 62 Contains functionalty to change the wallpaper 18->62 64 Contains functionality to steal Chrome passwords or cookies 18->64 66 Contains functionality to inject code into remote processes 18->66 68 3 other signatures 18->68 26 reg.exe 1 22->26         started        28 conhost.exe 22->28         started        30 cmd.exe 1 24->30         started        32 conhost.exe 24->32         started        signatures10 process11 process12 34 conhost.exe 26->34         started        36 conhost.exe 30->36         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-09-03 20:13:07 UTC
AV detection:
14 of 28 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5d6z7jky45s2bjrhhif2tamvgr6iyoeeshsomgdpzt2nrju3v6ca._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
04f483018f53c35976cfd9c4b5191279761a351b3e135a70ae9c5c2b53be154b
RemcosRAT
11f6a46954cdec78fec52771521926ff6917af81f79e3dc1198a38571b7d7519
RemcosRAT
204806f363e25b8caab19fade1152cbdef6d19a2ee0f122ce2a2aa3949154f1d
RemcosRAT
7eb677c1c5c60d34da90cab2b4ea019c500b5c3db6964cc14849dbe2f9f5fa30
RemcosRAT
b9384216a5aea20cd398e51c6549bb84d6b252f3fde114010e3cc0c60b1e2b13
RemcosRAT
bb63c61554ccc2caa79eec3705c3e4ce41626e88f375a8a1bc5b514e489b0f04
RemcosRAT
bc6387778b4a0caf34719e4de78d1ea6ecd96ba40a2e1e0997ae91dfe221807e
RemcosRAT
+ 573 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:augusta persistence rat
Link:
https://tria.ge/reports/210903-yzehasggaq/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
twistednerd.dvrlists.com:8618
Unpacked files
SH256 hash:
e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84
MD5 hash:
3386ae032f6d373ca53c4cdd9f2d8071
SHA1 hash:
ce6df9cc36b0049e01bbd72b00f92f42fdf7f990
Link:
https://www.unpac.me/results/4efc6ffe-df1c-4a48-b569-0f4fd81731a4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/e8fd9fa558e7/report/overview.html
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/e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84

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_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
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.

Web download

RemcosRAT

Executable exe e8fd9fa558e765a0a6273a0ba98195347c8c388491e4e6186fccf4d8a69baf84

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1589640/
Cape
Cape
https://www.capesandbox.com/analysis/185232/

Comments


Avatar
zbet commented on 2021-09-03 20:12:27 UTC

url : hxxp://198.23.251.110/fit.exe