MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 637bfeebd5af4c93d96872f15ed18603262f0e62428e475a62603cd56e419eba. 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: 8


Intelligence 8 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 637bfeebd5af4c93d96872f15ed18603262f0e62428e475a62603cd56e419eba
SHA3-384 hash: 9ad021d6cbc0ea2a111e460a5c2f5019ffef14e802da7bb092b6126e893a471e6a6b90451332cb28be000c3cfde70317
SHA1 hash: d43d3534c38ac17e0f1c07f33fb0066c12980db7
MD5 hash: 684c8c1cc1ba36daa7a8750c8e2e01ed
humanhash: oscar-east-purple-timing
File name:Re Подтверждение заказа-5308,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:644'608 bytes
First seen:2021-08-11 10:22:03 UTC
Last seen:2021-08-12 00:43:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6dc6623a0d21403082575f48f48cd705 (3 x RemcosRAT, 1 x NetWire, 1 x Formbook)
ssdeep 12288:T9EoH3X8iS2EYEY5cZ9OW6nL5x7E279XfM8Yh:TmmvE3sWY6Yq8i
Threatray 408 similar samples on MalwareBazaar
TLSH T145D49F19F7D0CC7EC1123A7A4E4BD729DA6A3E103C583A5227FC5D28AFB97A03516187
dhash icon b474e6c4c4d4f4c8 (3 x RemcosRAT, 1 x NetWire, 1 x Formbook)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
116
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Re Подтверждение заказа-5308,pdf.exe
Verdict:
Suspicious activity
Analysis date:
2021-08-11 10:25:26 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/114ba9f7-8f10-4756-8377-2df7155b3a0d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
DNS request
Creating a window
Searching for the window
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
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.
Malware family:
Loki
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0c8a9308-9af8-46c9-b38f-8c4c14425e11
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/830805
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
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 463233 Sample: 5308,pdf.exe Startdate: 11/08/2021 Architecture: WINDOWS Score: 100 28 thankyoulord4real.ddns.net 2->28 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 Detected Remcos RAT 2->56 58 4 other signatures 2->58 7 5308,pdf.exe 1 19 2->7         started        12 Bkitixw.exe 16 2->12         started        14 Bkitixw.exe 16 2->14         started        signatures3 process4 dnsIp5 30 onedrive.live.com 7->30 38 2 other IPs or domains 7->38 24 C:\Users\Public\Libraries\...\Bkitixw.exe, PE32 7->24 dropped 60 Writes to foreign memory regions 7->60 62 Creates a thread in another existing process (thread injection) 7->62 64 Injects a PE file into a foreign processes 7->64 16 mobsync.exe 2 7->16         started        32 onedrive.live.com 12->32 40 2 other IPs or domains 12->40 66 Machine Learning detection for dropped file 12->66 68 Allocates memory in foreign processes 12->68 20 mshta.exe 12->20         started        34 192.168.2.1 unknown unknown 14->34 36 onedrive.live.com 14->36 42 2 other IPs or domains 14->42 22 dialer.exe 14->22         started        file6 signatures7 process8 dnsIp9 26 thankyoulord4real.ddns.net 185.19.85.140, 3030, 49729, 49730 DATAWIRE-ASCH Switzerland 16->26 44 Contains functionality to steal Chrome passwords or cookies 16->44 46 Contains functionality to inject code into remote processes 16->46 48 Contains functionality to steal Firefox passwords or cookies 16->48 50 Delayed program exit found 20->50 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/637bfeebd5af4c93d96872f15ed18603262f0e62428e475a62603cd56e419eba/
Threat name:
Win32.Trojan.Scarsi
Create hunting rule
Status:
Malicious
First seen:
2021-08-11 10:23:04 UTC
AV detection:
17 of 27 (62.96%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=mn57526vv5gjhwliolyv5umgamtc6dtcikheowtcma6nk3sbt25a._file
Verdict:
malicious
Similar samples:
756f9b558a3bedf13017b0e8b5214d6d074778ee2696935c883eb0248b98fb39
RemcosRAT
7f7af3d03481bb68e11a68e958ce6d8e96701a053eaa458e7010a4a85643cad3
RemcosRAT
812e2389f8663877b542c908e33460ca2e94d055561f4a57f0814f2ff9ea92b5
RemcosRAT
82e96593173c1407d138cca5418a00b0f5cd9960b32d8f03052eca9b33e68b44
RemcosRAT
88b1766ff9c749387b51b47bde3e387393a01d10133a04c5afb763fd9670926a
RemcosRAT
9d109cc4f855ab857f7bc081a7bd0e2be2a46d59282970f1a189a019b4467173
RemcosRAT
d8f95b86b00cd4ba851931bc543ea4c20a8629335ea04d85d2dbd4829d53a2d4
RemcosRAT
dce7bd6ffb24e1022633df291493bc759eda61266bc34c9753ab7912c31b7e96
RemcosRAT
+ 398 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/210811-7vacdrftra/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Unpacked files
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/1121613a-1875-41e8-9404-46941313e703/
SH256 hash:
637bfeebd5af4c93d96872f15ed18603262f0e62428e475a62603cd56e419eba
MD5 hash:
684c8c1cc1ba36daa7a8750c8e2e01ed
SHA1 hash:
d43d3534c38ac17e0f1c07f33fb0066c12980db7
Link:
https://www.unpac.me/results/1121613a-1875-41e8-9404-46941313e703/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/637bfeebd5af/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/637bfeebd5af4c93d96872f15ed18603262f0e62428e475a62603cd56e419eba

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_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.

Comments