MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2. 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: 9


Intelligence 9 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2
SHA3-384 hash: 42930e87a3eb08bbce62b1aa67d6b4e4cc4aa286bc8934f0c231377be7c499ec5cea541e138fcaac472cc0d35b7c971e
SHA1 hash: fd5d56ebcd1bb04d6af6ee2fa8e59a84d2fc3628
MD5 hash: cb8f83ac3057630efb8a6912d4bad702
humanhash: beryllium-mango-mockingbird-xray
File name:(LKP-2020-027).exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'081'344 bytes
First seen:2020-10-27 10:27:01 UTC
Last seen:2020-10-27 12:16:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'240 x SnakeKeylogger)
ssdeep 12288:WynWyVsNmXFIhiKVf/v39CP9XwTkVhlq/Cd6yg+DD1swLfD9jNJQpH:9VGEF2StjVhlqK4IDhxb1NWpH
Threatray 1'588 similar samples on MalwareBazaar
TLSH 703509527A809950F169723BC27A864847F49F1026A3D333F8FF32A70E37B6679059D6
Reporter abuse_ch
Tags:exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: mfwd17.mailplug.co.kr
Sending IP: 211.253.10.228
From: (주)서원_청북공장 <s-a0169@i-seowon.com>
Subject: We will send you an order.
Attachment: (LKP-2020-027).cab (contains "(LKP-2020-027).exe")

RmecosRAT C2:
bkns-rubis43.ddns.net:1618 (79.134.225.80)

Pointing to nVpn:

% Information related to '79.134.225.0 - 79.134.225.127'

% Abuse contact for '79.134.225.0 - 79.134.225.127' is 'abuse@privacyfirst.sh'

inetnum: 79.134.225.0 - 79.134.225.127
netname: PRIVACYFIRST-EU
country: EU
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
status: ASSIGNED PA
mnt-by: AF15-MNT
org: ORG-TPP6-RIPE
created: 2020-07-14T15:26:02Z
last-modified: 2020-07-14T15:31:06Z
source: RIPE

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79812/
Detection(s):
SecuriteInfo.com.ArtemisCB8F83AC3057.12645.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513318
Signature
Allocates memory in foreign processes
Detected Remcos RAT
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Sigma detected: Suspicious Svchost Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 305791 Sample: (LKP-2020-027).exe Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 53 bkns-rubis43.ddns.net 2->53 65 Sigma detected: Scheduled temp file as task from temp location 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 Detected Remcos RAT 2->69 71 8 other signatures 2->71 10 (LKP-2020-027).exe 7 2->10         started        signatures3 process4 file5 47 C:\Users\user\AppData\Local\Temp\tmpCF1.tmp, XML 10->47 dropped 49 C:\Users\user\AppData\...\hGhbOZQkHEWReR.exe, PE32 10->49 dropped 73 Injects a PE file into a foreign processes 10->73 14 (LKP-2020-027).exe 3 76 10->14         started        19 schtasks.exe 1 10->19         started        signatures6 process7 dnsIp8 55 bkns-rubis43.ddns.net 70.32.0.57, 1618, 49718, 49724 ASN-GIGENETUS United States 14->55 57 192.168.2.1 unknown unknown 14->57 51 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 14->51 dropped 59 Writes to foreign memory regions 14->59 61 Allocates memory in foreign processes 14->61 63 Injects a PE file into a foreign processes 14->63 21 svchost.exe 2 12 14->21         started        23 cmd.exe 1 14->23         started        25 svchost.exe 14->25         started        29 8 other processes 14->29 27 conhost.exe 19->27         started        file9 signatures10 process11 process12 31 iexplore.exe 3 115 21->31         started        33 conhost.exe 23->33         started        35 reg.exe 1 23->35         started        37 iexplore.exe 25->37         started        process13 39 iexplore.exe 61 31->39         started        41 iexplore.exe 31->41         started        43 iexplore.exe 31->43         started        45 6 other processes 31->45
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 03:01:10 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xizzlzzqdttskwrzparycq3bdhvhhquql6l7eymf5xw3bzlyqhja._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
15170d0dbe467efc4e38156ed4e03702ae19af44c100d7df7a75c6dbdb7ac587
RemcosRAT
1b9cbd60298e5be7b6c5813a3c03bd423ae73364049848c44145b9c079fd0adc
RemcosRAT
237c747caafde8ad8feca8fd69ec5143842d213b09f4248f86813070fe380085
RemcosRAT
4791861118e0be776fd14153e2feca7d25f5a91a6c32a997385f5ae272e3d7c8
RemcosRAT
4875f3562c4af57ea7bd8f6eecfc297784d9307cd7190a6aa44a0dffc21258c9
RemcosRAT
6274c01dd6783517a68267d2c6c2af38143ed35074cfc2372d8bc385a7c5f4e9
RemcosRAT
6c882aeb918e424cefe1068a6d3fbff5526c31e185716bf3a0d5ae0295772f09
RemcosRAT
a1c644a64801c61e1649517c3debc28b194b4f9d43e1a99bc28724f652c3ca5e
RemcosRAT
b5ba143b36eb77a1899c07ef016155b3b7ef73b83456cadf534245896360b902
RemcosRAT
ca62c5cf8e6f3260dbe15a469e90197612af8843d897f65c7fdde87554ebae51
RemcosRAT
+ 1'578 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos evasion trojan
Link:
https://tria.ge/reports/201027-nh2vkdldh6/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
UAC bypass
Malware Config
C2 Extraction:
bkns-rubis43.ddns.net:1618
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/ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

RemcosRAT

cab 6992103b3252d54879dbcc5108457fb6b132f5fbd48779a4107bdfe1a9394b71

RemcosRAT

Executable exe ba3395e7301ce7255a39782381436119ea73c2905f97f26185ededb0e57881d2

(this sample)

  
Dropped by
MD5 d290370d924b974ae2908a89abec5950
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/79812/
  
Dropped by
SHA256 6992103b3252d54879dbcc5108457fb6b132f5fbd48779a4107bdfe1a9394b71

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