MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059. 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: 31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059
SHA3-384 hash: ac99925767b7c4801eb33bad332c3853ce701b2381e431712829f4875b9308b9a820f6de68fa74a96813ada78b852a66
SHA1 hash: 5ce4b90447bc5d2b8d86ffa8dea21ea8e5858202
MD5 hash: 7c8efbe367f82fb25ec6c42479a64a25
humanhash: vegan-beryllium-steak-one
File name:7c8efbe367f82fb25ec6c42479a64a25
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:750'080 bytes
First seen:2021-09-03 02:02:20 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4469230dadf10434edb28a90c2a5b8fd (3 x RemcosRAT, 2 x NetWire)
ssdeep 12288:wyL+XIUEkt8A+CSspygap6vXD85pzM4ecXgin8IXY:jS4Tkt7gsHamDqpzMlcQi8Q
Threatray 604 similar samples on MalwareBazaar
TLSH T139F45BA5F7A08C3EF4710AFCD80E99C4A418FC693D29CCC636B56D8517B158CB43A5AB
dhash icon 0f4cceadcc16694d (8 x RemcosRAT, 5 x NetWire, 5 x DBatLoader)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
167
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
7c8efbe367f82fb25ec6c42479a64a25
Verdict:
Suspicious activity
Analysis date:
2021-09-03 02:05:00 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/79130ef8-a96c-4a0e-902b-a7fc97b8c495

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/184983/
Detection(s):
SecuriteInfo.com.W32.AIDetect.malware1.6558.27545.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Connection attempt
Sending a custom TCP 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/510b68c6-80b5-44b4-b61d-8cdd6fb46b91
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844468
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 476899 Sample: tVjDMtlqb9 Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 59 Multi AV Scanner detection for domain / URL 2->59 61 Found malware configuration 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 7 other signatures 2->65 8 tVjDMtlqb9.exe 1 22 2->8         started        13 Dbixhsz.exe 15 2->13         started        15 Dbixhsz.exe 16 2->15         started        process3 dnsIp4 45 ya7p6a.sn.files.1drv.com 8->45 53 2 other IPs or domains 8->53 41 C:\Users\Public\Libraries\...\Dbixhsz.exe, PE32 8->41 dropped 75 Writes to foreign memory regions 8->75 77 Creates a thread in another existing process (thread injection) 8->77 79 Injects a PE file into a foreign processes 8->79 17 DpiScaling.exe 2 8->17         started        21 cmd.exe 1 8->21         started        23 cmd.exe 1 8->23         started        47 ya7p6a.sn.files.1drv.com 13->47 55 2 other IPs or domains 13->55 81 Multi AV Scanner detection for dropped file 13->81 25 ieinstal.exe 13->25         started        49 192.168.2.1 unknown unknown 15->49 51 ya7p6a.sn.files.1drv.com 15->51 57 2 other IPs or domains 15->57 83 Allocates memory in foreign processes 15->83 27 secinit.exe 15->27         started        file5 signatures6 process7 dnsIp8 43 twistednerd.dvrlists.com 62.102.148.152, 8618 TEKNIKBYRANSE Sweden 17->43 67 Contains functionality to steal Chrome passwords or cookies 17->67 69 Contains functionality to inject code into remote processes 17->69 71 Contains functionality to steal Firefox passwords or cookies 17->71 73 Delayed program exit found 17->73 29 reg.exe 1 21->29         started        31 conhost.exe 21->31         started        33 cmd.exe 1 23->33         started        35 conhost.exe 23->35         started        signatures9 process10 process11 37 conhost.exe 29->37         started        39 conhost.exe 33->39         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 19:04:25 UTC
AV detection:
13 of 43 (30.23%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ghkz3lo5ehhay7mk67jeufwvjy6fxvftwow325zn4bixpn4bebmq._file
Verdict:
malicious
Similar samples:
0ece37571329db1a83a8efeb0ed01d267ea7c2c349c235b2f4cc26bd07bb7df6
RemcosRAT
1b1eb8f42b0b48cf428e19c9c8b21676c41faca886e392c6d6f05de3120297c9
RemcosRAT
3650a6db5c9e0c37b7d1b69de83f448829d9c94dc4410404dc20a29bd6942014
RemcosRAT
4105711ebff133af5304052a1f66966be4115636d707ff6b20e784af2bddda23
RemcosRAT
83080b8c4c08c8da536e213b6d03a7bff6541bb02aa95f804cd896567bfaeebf
RemcosRAT
b0a0d1d399e98e48cae6a87c280339bc1b0d1c22f84ae589e0c3dca78e76d108
RemcosRAT
bb63c61554ccc2caa79eec3705c3e4ce41626e88f375a8a1bc5b514e489b0f04
RemcosRAT
bbcb471cbc4736cd7b0c10bd0f4a5e85bc3b6a2cc4e9a2905cd534c9bf441e30
RemcosRAT
+ 594 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-cgq8gsfaep/
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:
4e1202f3e7e04b0b3ca1df164bf5381f24063c142317e774d4e5d88b2b3ac744
MD5 hash:
aa23dee2c34813d67fe9c67ec784782a
SHA1 hash:
10b2e7af7cb9d6f852e6d607875a8c9613538930
Link:
https://www.unpac.me/results/726c0ffb-830b-4d86-9d10-c636400b05a2/
SH256 hash:
31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059
MD5 hash:
7c8efbe367f82fb25ec6c42479a64a25
SHA1 hash:
5ce4b90447bc5d2b8d86ffa8dea21ea8e5858202
Link:
https://www.unpac.me/results/726c0ffb-830b-4d86-9d10-c636400b05a2/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/31d59daddd21/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/31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059

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 31d59daddd21ce0c7d8af7d24a16d54e3c5bd4b3b3adbd772de05177b7812059

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1587644/
Cape
Cape
https://www.capesandbox.com/analysis/184983/

Comments


Avatar
zbet commented on 2021-09-03 02:02:21 UTC

url : hxxp://198.23.251.110/tito.exe