MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 26e21e90ec6431d87ffd66ee6f0cce3c2f1854a98390670b1002332632f297de. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 26e21e90ec6431d87ffd66ee6f0cce3c2f1854a98390670b1002332632f297de
SHA3-384 hash: 32a9c643e551a68c792620ee9771a4fb40ac34d9087217b8c21a5e8fb9d872effca4d4a1ede7afce55f0def44129a7be
SHA1 hash: 410d24bd4b11f7d136ab970935ae4f8daf4703b7
MD5 hash: 7a7548ffe023136f2c48605a6fb58882
humanhash: comet-nine-quebec-missouri
File name:DHL 2723382830收据,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:472'064 bytes
First seen:2020-10-26 10:12:49 UTC
Last seen:2020-10-26 11:58:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:OcggADH7uGwJl2qKFPAl+6R0prRVUw9C:nwDHAX2q4PhZptVx
Threatray 1'025 similar samples on MalwareBazaar
TLSH 1CA4D022738CC756E17987B81821D03057F1BC85DB31E6297DE4BADF25B2E818B7A712
Reporter abuse_ch
Tags:DHL exe nVpn RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.knei-ttrati.com
Sending IP: 45.95.169.151
From: DHL Express Cargo <delivery@dhl.com>
Subject: DHL货运
Attachment: DHL 2723382830收据,pdf.iso (contains "DHL 2723382830收据,pdf.exe")

RemcosRAT C2:
nwajesu2020.freedynamicdns.org:2991 (79.134.225.9)

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 :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/78987/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.424.6196.8029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the Windows subdirectories
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Running batch commands
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/511514
Signature
.NET source code contains potential unpacker
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Detected Remcos RAT
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
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes many files with high entropy
Yara detected AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 304905 Sample: DHL 2723382830#U6536#U636e,... Startdate: 26/10/2020 Architecture: WINDOWS Score: 100 65 nwajesu2020.freedynamicdns.org 2->65 67 Malicious sample detected (through community Yara rule) 2->67 69 Multi AV Scanner detection for dropped file 2->69 71 Sigma detected: Scheduled temp file as task from temp location 2->71 73 12 other signatures 2->73 12 DHL 2723382830#U6536#U636e,pdf.exe 8 2->12         started        16 remcos.exe 2->16         started        18 remcos.exe 2->18         started        signatures3 process4 file5 59 C:\Users\user\AppData\Roaming\fYUPDtt.exe, PE32 12->59 dropped 61 C:\Users\user\AppData\Local\...\tmpD9DB.tmp, XML 12->61 dropped 83 Injects a PE file into a foreign processes 12->83 20 DHL 2723382830#U6536#U636e,pdf.exe 4 5 12->20         started        23 schtasks.exe 1 12->23         started        25 schtasks.exe 16->25         started        27 remcos.exe 16->27         started        29 schtasks.exe 18->29         started        31 remcos.exe 18->31         started        signatures6 process7 file8 57 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->57 dropped 33 wscript.exe 1 20->33         started        35 conhost.exe 23->35         started        37 conhost.exe 25->37         started        39 conhost.exe 29->39         started        process9 process10 41 cmd.exe 1 33->41         started        process11 43 remcos.exe 5 41->43         started        46 conhost.exe 41->46         started        signatures12 75 Multi AV Scanner detection for dropped file 43->75 77 Contains functionality to steal Chrome passwords or cookies 43->77 79 Contains functionality to capture and log keystrokes 43->79 81 2 other signatures 43->81 48 remcos.exe 2 161 43->48         started        51 schtasks.exe 1 43->51         started        53 remcos.exe 43->53         started        process13 dnsIp14 63 nwajesu2020.freedynamicdns.org 79.134.225.9, 2991, 49729, 49730 FINK-TELECOM-SERVICESCH Switzerland 48->63 55 conhost.exe 51->55         started        process15
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/26e21e90ec6431d87ffd66ee6f0cce3c2f1854a98390670b1002332632f297de/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-25 22:09:34 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e3rb5ehmmqy5q775m3xg6dgohqxrqvfjqoigocyqaizsmmxss7pa._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
20fa81d1aaeb9c0b8a15f71c939d71f6fac6e6a36e6fda77c5c23c50a773b08d
RemcosRAT
2323e3fa9e42ca85d8c33196bbb4b5273403e1eae415e42be8b055df1a560337
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263fefe63ffef92b66516f9de917b4af09783ef5e3b6ba93b030d91c624c7925
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2829f8bf819c13d753f3c6b33726df8c46a533f3040b550a86ca0ab34f967e92
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3f3daa13de0dde36e87f536f9cbcabc3170a6ddc4bd261d8ad3d3cd8515f6790
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586e6d87926659657100318f4efc9407706ceb71106b4d97757c30d100168d41
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60c5937025d6f55a67d64ba824bb2ea0ba3aedd9dd949429544aaec829b98410
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6b45c7c7eff3349f69bbe88ee3209c8557e3ec32b1985e1a3053392354ae64ca
RemcosRAT
8a525d55d517847b7379170a844775e1ea1ddc79816e4650d74787da63141d65
RemcosRAT
bb07625dfa5d6a83097fe8ca97e3b03973086c48f05d0a4af05317ec4ad99449
RemcosRAT
+ 1'015 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/201026-2x7dpn32ax/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Please note that we are no longer able to provide a coverage score for Virus Total.

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

iso b9c030f3b788411d2cb9ba983d52787c714c2381cc8899559e037fcc6627fc0e

RemcosRAT

Executable exe 26e21e90ec6431d87ffd66ee6f0cce3c2f1854a98390670b1002332632f297de

(this sample)

  
Dropped by
MD5 8511193ff1c8330602eb135f34aff3e8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b9c030f3b788411d2cb9ba983d52787c714c2381cc8899559e037fcc6627fc0e
Cape
Cape
https://www.capesandbox.com/analysis/78987/

Comments