MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1
SHA3-384 hash: 50cd7c2f9b3523ee0620406bd05115641aba941810690f5326b234cecaea11271f68c4a5f0263aca5ddd5e618974b518
SHA1 hash: 80be2d5f474eaaffcd9ad3b5b67ed7c8e2833d45
MD5 hash: 9f32409ee55f0db63b58b3645a6b1943
humanhash: mexico-wolfram-freddie-massachusetts
File name:Birchmeier RFQ_AP65425652_032421 urgente,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'219'584 bytes
First seen:2021-08-17 08:25:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7b3d39f86bce9836a8fcdf7d5c6f7f87 (2 x RemcosRAT, 1 x AveMariaRAT, 1 x Formbook)
ssdeep 24576:0h4WI1DOj6P0hFORupCAzQUedKPIddHlen0F:8ej+XQUeET0
Threatray 799 similar samples on MalwareBazaar
TLSH T108457C5F7E916E34C55609771B4289B8693C7DA0BC10681E27FAFE8F2A770E07D44A0B
dhash icon 12093cbab83c0912 (4 x RemcosRAT, 1 x AveMariaRAT, 1 x Formbook)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Birchmeier RFQ_AP65425652_032421 urgente,pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-08-17 08:32:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0d9d785c-fca5-439a-ac8e-a02f5bf50adb

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/179890/
Detection(s):
SecuriteInfo.com.MachineLearning.Anomalous.96.16387.14295.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Deleting a recently created file
Launching a process
Launching the default Windows debugger (dwwin.exe)
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/450caffd-19e4-49dd-982d-fd4f742fa7de
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/834177
Signature
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)
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: 466608 Sample: Birchmeier RFQ_AP65425652_0... Startdate: 17/08/2021 Architecture: WINDOWS Score: 100 30 ddboy.ddns.net 2->30 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 Detected Remcos RAT 2->58 60 3 other signatures 2->60 7 Birchmeier RFQ_AP65425652_032421 urgente,pdf.exe 1 19 2->7         started        12 Zfiicgy.exe 16 2->12         started        14 Zfiicgy.exe 16 2->14         started        signatures3 process4 dnsIp5 32 onedrive.live.com 7->32 34 hjbyrq.dm.files.1drv.com 7->34 36 dm-files.fe.1drv.com 7->36 24 C:\Users\Public\Libraries\...\Zfiicgy.exe, PE32 7->24 dropped 62 Writes to foreign memory regions 7->62 64 Creates a thread in another existing process (thread injection) 7->64 66 Injects a PE file into a foreign processes 7->66 16 secinit.exe 2 3 7->16         started        38 onedrive.live.com 12->38 42 2 other IPs or domains 12->42 20 dialer.exe 12->20         started        40 onedrive.live.com 14->40 44 2 other IPs or domains 14->44 22 mshta.exe 14->22         started        file6 signatures7 process8 dnsIp9 26 ddboy.ddns.net 185.140.53.4, 3927, 49738, 49741 DAVID_CRAIGGG Sweden 16->26 28 192.168.2.1 unknown unknown 16->28 46 Contains functionality to steal Chrome passwords or cookies 16->46 48 Contains functionality to inject code into remote processes 16->48 50 Contains functionality to steal Firefox passwords or cookies 16->50 52 Delayed program exit found 20->52 signatures10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2021-08-17 08:26:08 UTC
AV detection:
9 of 46 (19.57%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qzaidwmhbmnydszmoufwgcucrmmr67dgi6imkqivvabtgupvb2qq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
38da1c4dabd3275256a93bc7321267979802c35ec2cbd1ecef7a5ad18a61afad
RemcosRAT
62960caf3d007638be89631e502733f30c42a9ba0269e8c00457c9dec10e9136
RemcosRAT
643d70b162fbca24123f8c5ad6bab6fb1aa6166fb66a414910a5b78bd68320cf
RemcosRAT
8d076437949873b971f9534e630ebe26a8437f50786c430eaeb46c71d53a88e5
RemcosRAT
d4d30acde6fa4db431b90817911b44d21c65fc1fa72744625bccafe3899869bc
RemcosRAT
e156425f76efbe5cdf1494564b1328f13b2284791e591961077d387329b024e1
RemcosRAT
e6930000e13aa3deafe16f78fcfca8e6276e18ba6a252b8045dfaf570f044328
RemcosRAT
+ 789 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:daxyman persistence rat
Link:
https://tria.ge/reports/210817-k7368pn6as/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
ddboy.ddns.net:3927
Unpacked files
SH256 hash:
12d77f562b09de297d154701def1e670d8ad008d95c576fb8ae3799035847d7f
MD5 hash:
d23c5808f39cd95c3571ad52932c81a0
SHA1 hash:
fa99fde1f0dbc5b6408e9eb202178f8e391b8b97
Link:
https://www.unpac.me/results/d5c47fce-e860-4288-8fdc-6bb6b4248b05/
SH256 hash:
795b2b5d6668147d7924ac96f90741ddc2a2b5003f455fb842b613a286fbf8fc
MD5 hash:
53011b69a7231aea23d66805a681144b
SHA1 hash:
e3d0d157e763c865e79ccc5bedc2fd5fd90413f7
Link:
https://www.unpac.me/results/d5c47fce-e860-4288-8fdc-6bb6b4248b05/
SH256 hash:
864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1
MD5 hash:
9f32409ee55f0db63b58b3645a6b1943
SHA1 hash:
80be2d5f474eaaffcd9ad3b5b67ed7c8e2833d45
Link:
https://www.unpac.me/results/d5c47fce-e860-4288-8fdc-6bb6b4248b05/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/864081d9870b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

RemcosRAT

Executable exe 864081d9870b1b81cb2c750b630a828b191f7c664790c54115a8033351f50ea1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/179890/

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