MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee
SHA3-384 hash: 6809b6b23cce0d6eeceec8bd292a9c056b2958f0133832647a24f84b4aa0129cc320dfd44dd9dd8f2ba3325d9290bfa4
SHA1 hash: 15e2efa61dc81321614dfb32b45901b938f001d1
MD5 hash: 457e1bf09958f400b72e470e672dad6b
humanhash: vermont-five-bluebird-zebra
File name:457e1bf09958f400b72e470e672dad6b.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:719'872 bytes
First seen:2021-08-08 15:21:09 UTC
Last seen:2021-08-08 16:01:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash df0bf408650a99ce9a9544d9b2764ac7 (1 x RemcosRAT)
ssdeep 12288:MZ/oQGlw+x/oF6Np91m6mJ9G2fUeiDnsmJbtMSbvKWlQrfF8h:EQhw+asfm6P2fZiDn/xrPlQ7
Threatray 410 similar samples on MalwareBazaar
TLSH T125E49D71FFE1A673C02A3E3C5C0A1679EA177F201B9938561BFA3DB45EA428238154D7
dhash icon 9874ded6d6d4c853 (1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
181
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
457e1bf09958f400b72e470e672dad6b.exe
Verdict:
Malicious activity
Analysis date:
2021-08-08 15:24:49 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b58155c8-6452-4dd9-9cc6-abd0eccd2515

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/177254/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader41.4140.23331.28508.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Creating a file
Launching a process
Running batch commands
Creating a process with a hidden window
Launching cmd.exe command interpreter
Connection attempt to an infection source
Sending a UDP request
Deleting a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Query of malicious DNS domain
Unauthorized injection to a system 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/d766bbce-aefa-424b-9323-b2f1475ef7f4
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/828813
Signature
C2 URLs / IPs found in malware configuration
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
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
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 dnsIp2 2 Behavior Graph ID: 461244 Sample: KYcdTLr5iU.exe Startdate: 08/08/2021 Architecture: WINDOWS Score: 100 44 sergio.ac.ug 2->44 46 ramosasdj.ac.ug 2->46 48 4 other IPs or domains 2->48 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 Multi AV Scanner detection for submitted file 2->64 66 2 other signatures 2->66 9 KYcdTLr5iU.exe 1 24 2->9         started        14 Jjdsdpr.exe 13 2->14         started        16 Jjdsdpr.exe 13 2->16         started        signatures3 process4 dnsIp5 56 cdn.discordapp.com 162.159.133.233, 443, 49715, 49716 CLOUDFLARENETUS United States 9->56 42 C:\Users\Public\Libraries\...\Jjdsdpr.exe, PE32 9->42 dropped 74 Writes to foreign memory regions 9->74 76 Creates a thread in another existing process (thread injection) 9->76 78 Injects a PE file into a foreign processes 9->78 18 mobsync.exe 1 9->18         started        22 cmd.exe 1 9->22         started        24 cmd.exe 1 9->24         started        80 Multi AV Scanner detection for dropped file 14->80 26 secinit.exe 14->26         started        58 162.159.135.233, 443, 49736 CLOUDFLARENETUS United States 16->58 28 mobsync.exe 16->28         started        file6 signatures7 process8 dnsIp9 50 sergio.ac.ug 79.134.225.25, 49730, 49731, 49733 FINK-TELECOM-SERVICESCH Switzerland 18->50 52 192.168.2.1 unknown unknown 18->52 54 4 other IPs or domains 18->54 68 Contains functionality to steal Chrome passwords or cookies 18->68 70 Contains functionality to steal Firefox passwords or cookies 18->70 72 Delayed program exit found 18->72 30 reg.exe 1 22->30         started        32 conhost.exe 22->32         started        34 cmd.exe 1 24->34         started        36 conhost.exe 24->36         started        signatures10 process11 process12 38 conhost.exe 30->38         started        40 conhost.exe 34->40         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2021-08-08 12:08:41 UTC
AV detection:
9 of 28 (32.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2qbxcayagh6ij4gncszaqznldisdwt5ulqnpwqdvaz5jowi3ztxa._file
Verdict:
malicious
Similar samples:
38ba862149962bc5a10825a2b818391624cda439fcb3f6212b75d84eeeb4f70c
RemcosRAT
46a376d25369d059b1c149d8fb4821aa3ddb504bb381a02f3d5e4e019a41ed4d
RemcosRAT
4a84faebc419ed0cddbc9e37b337a3090a01051d3ed7d1650c2845369b9a1d63
RemcosRAT
65938be488736ddc5c8a7c2891ec4530d9d27fd272aeaf192a3be4461b4690b1
RemcosRAT
75b6c107ad6001f2588229fbfdb96dc998fe9f3e44f8df69c98096aceea9aa73
RemcosRAT
c0dbfce6d1904f32b39ef57d1f59595099171f5e038ad1003a9fc5f9c3ec92d2
RemcosRAT
d8f95b86b00cd4ba851931bc543ea4c20a8629335ea04d85d2dbd4829d53a2d4
RemcosRAT
fad40e1841789cfbef3c9f09b4e557b928597506cd8b93d8eae51cef2ba3cf3f
RemcosRAT
fd866b4e18b49ef0232eda27280a0d56a9e408792bba4cddded1961fe64e7bf3
RemcosRAT
+ 400 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:08082021 persistence rat
Link:
https://tria.ge/reports/210808-617jj3gdce/
Behaviour
Modifies registry key
Suspicious use of WriteProcessMemory
Adds Run key to start application
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
sergio.ac.ug:6969
ramosasdj.ac.ug:6969
parhatcsafxz.ac.ug:6969
heartdoaz.ac.ug:6969
aertdfvaz.ac.ug:6969
Unpacked files
SH256 hash:
d2ff256bf1e2854fd926aa03bee9ed647231d2cc02b100dbe88a3e1a22efade1
MD5 hash:
3ec9703d19d483a14d1fde2f7a98f90d
SHA1 hash:
b3c255f61ee4bc9d5b92414a2238343e06ca4678
Link:
https://www.unpac.me/results/ab59266e-460e-46c5-b0b7-1ae805cad6f4/
SH256 hash:
d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee
MD5 hash:
457e1bf09958f400b72e470e672dad6b
SHA1 hash:
15e2efa61dc81321614dfb32b45901b938f001d1
Link:
https://www.unpac.me/results/ab59266e-460e-46c5-b0b7-1ae805cad6f4/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/d40371030031/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/d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee

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_EXE_UACBypass_EnvVarScheduledTasks
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC (ab)using Environment Variables in Scheduled Tasks
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
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 d40371030031fc84f0cd14b20865ab1a243b4fb45c1afb4075067a97591bccee

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1475911/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/948788/
Cape
Cape
https://www.capesandbox.com/analysis/177254/

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